Mercurial > cpython-lru_cache-weakref

annotate Python/marshal.c @ 70303:2d760cb20e1e 2.6

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Replay changeset 70249:b571c7a8cf2e from fubar branch. Original commit message: Merging post 2.6.7rc2 changes from Subversion.
author Barry Warsaw <barry@python.org>
date Mon, 23 May 2011 15:27:52 -0400
parents 787b969d37f0
children b36cb4602e21
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1
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2 /* Write Python objects to files and read them back.
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3 This is intended for writing and reading compiled Python code only;
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4 a true persistent storage facility would be much harder, since
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5 it would have to take circular links and sharing into account. */
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6
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7 #define PY_SSIZE_T_CLEAN
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8
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9 #include "Python.h"
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10 #include "longintrepr.h"
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11 #include "code.h"
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12 #include "marshal.h"
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13
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14 /* High water mark to determine when the marshalled object is dangerously deep
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15 * and risks coring the interpreter. When the object stack gets this deep,
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16 * raise an exception instead of continuing.
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17 */
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18 #define MAX_MARSHAL_STACK_DEPTH 2000
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19
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20 #define TYPE_NULL '0'
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21 #define TYPE_NONE 'N'
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22 #define TYPE_FALSE 'F'
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23 #define TYPE_TRUE 'T'
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24 #define TYPE_STOPITER 'S'
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25 #define TYPE_ELLIPSIS '.'
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26 #define TYPE_INT 'i'
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27 #define TYPE_INT64 'I'
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28 #define TYPE_FLOAT 'f'
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29 #define TYPE_BINARY_FLOAT 'g'
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30 #define TYPE_COMPLEX 'x'
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31 #define TYPE_BINARY_COMPLEX 'y'
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32 #define TYPE_LONG 'l'
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33 #define TYPE_STRING 's'
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34 #define TYPE_INTERNED 't'
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35 #define TYPE_STRINGREF 'R'
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36 #define TYPE_TUPLE '('
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37 #define TYPE_LIST '['
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38 #define TYPE_DICT '{'
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39 #define TYPE_CODE 'c'
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40 #define TYPE_UNICODE 'u'
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41 #define TYPE_UNKNOWN '?'
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42 #define TYPE_SET '<'
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43 #define TYPE_FROZENSET '>'
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45 typedef struct {
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46 FILE *fp;
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47 int error;
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48 int depth;
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49 /* If fp == NULL, the following are valid: */
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50 PyObject *str;
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51 char *ptr;
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52 char *end;
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53 PyObject *strings; /* dict on marshal, list on unmarshal */
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54 int version;
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55 } WFILE;
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56
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57 #define w_byte(c, p) if (((p)->fp)) putc((c), (p)->fp); \
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58 else if ((p)->ptr != (p)->end) *(p)->ptr++ = (c); \
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59 else w_more(c, p)
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60
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61 static void
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62 w_more(int c, WFILE *p)
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63 {
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64 Py_ssize_t size, newsize;
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65 if (p->str == NULL)
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66 return; /* An error already occurred */
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67 size = PyString_Size(p->str);
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68 newsize = size + size + 1024;
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69 if (newsize > 32*1024*1024) {
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70 newsize = size + (size >> 3); /* 12.5% overallocation */
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71 }
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72 if (_PyString_Resize(&p->str, newsize) != 0) {
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73 p->ptr = p->end = NULL;
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74 }
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75 else {
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76 p->ptr = PyString_AS_STRING((PyStringObject *)p->str) + size;
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77 p->end =
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78 PyString_AS_STRING((PyStringObject *)p->str) + newsize;
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79 *p->ptr++ = Py_SAFE_DOWNCAST(c, int, char);
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80 }
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81 }
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82
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83 static void
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84 w_string(char *s, int n, WFILE *p)
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85 {
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86 if (p->fp != NULL) {
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87 fwrite(s, 1, n, p->fp);
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88 }
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89 else {
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90 while (--n >= 0) {
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91 w_byte(*s, p);
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92 s++;
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93 }
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94 }
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95 }
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96
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97 static void
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98 w_short(int x, WFILE *p)
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99 {
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100 w_byte((char)( x & 0xff), p);
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101 w_byte((char)((x>> 8) & 0xff), p);
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102 }
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103
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104 static void
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105 w_long(long x, WFILE *p)
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106 {
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107 w_byte((char)( x & 0xff), p);
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108 w_byte((char)((x>> 8) & 0xff), p);
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109 w_byte((char)((x>>16) & 0xff), p);
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110 w_byte((char)((x>>24) & 0xff), p);
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111 }
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112
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113 #if SIZEOF_LONG > 4
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114 static void
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115 w_long64(long x, WFILE *p)
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116 {
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117 w_long(x, p);
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118 w_long(x>>32, p);
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119 }
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120 #endif
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121
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122 static void
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123 w_object(PyObject *v, WFILE *p)
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124 {
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125 Py_ssize_t i, n;
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126
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127 p->depth++;
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128
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129 if (p->depth > MAX_MARSHAL_STACK_DEPTH) {
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130 p->error = 2;
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131 }
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132 else if (v == NULL) {
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133 w_byte(TYPE_NULL, p);
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134 }
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135 else if (v == Py_None) {
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136 w_byte(TYPE_NONE, p);
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137 }
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138 else if (v == PyExc_StopIteration) {
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139 w_byte(TYPE_STOPITER, p);
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140 }
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141 else if (v == Py_Ellipsis) {
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142 w_byte(TYPE_ELLIPSIS, p);
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143 }
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144 else if (v == Py_False) {
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145 w_byte(TYPE_FALSE, p);
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146 }
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147 else if (v == Py_True) {
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148 w_byte(TYPE_TRUE, p);
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149 }
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150 else if (PyInt_CheckExact(v)) {
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151 long x = PyInt_AS_LONG((PyIntObject *)v);
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152 #if SIZEOF_LONG > 4
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153 long y = Py_ARITHMETIC_RIGHT_SHIFT(long, x, 31);
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154 if (y && y != -1) {
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155 w_byte(TYPE_INT64, p);
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156 w_long64(x, p);
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157 }
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158 else
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159 #endif
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160 {
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161 w_byte(TYPE_INT, p);
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162 w_long(x, p);
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163 }
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164 }
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165 else if (PyLong_CheckExact(v)) {
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166 PyLongObject *ob = (PyLongObject *)v;
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167 w_byte(TYPE_LONG, p);
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168 n = ob->ob_size;
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169 w_long((long)n, p);
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170 if (n < 0)
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171 n = -n;
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172 for (i = 0; i < n; i++)
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173 w_short(ob->ob_digit[i], p);
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174 }
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175 else if (PyFloat_CheckExact(v)) {
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176 if (p->version > 1) {
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177 unsigned char buf[8];
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178 if (_PyFloat_Pack8(PyFloat_AsDouble(v),
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179 buf, 1) < 0) {
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180 p->error = 1;
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181 return;
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182 }
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183 w_byte(TYPE_BINARY_FLOAT, p);
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184 w_string((char*)buf, 8, p);
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185 }
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186 else {
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187 char buf[256]; /* Plenty to format any double */
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188 PyFloat_AsReprString(buf, (PyFloatObject *)v);
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189 n = strlen(buf);
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190 w_byte(TYPE_FLOAT, p);
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191 w_byte((int)n, p);
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192 w_string(buf, (int)n, p);
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193 }
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194 }
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195 #ifndef WITHOUT_COMPLEX
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196 else if (PyComplex_CheckExact(v)) {
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197 if (p->version > 1) {
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198 unsigned char buf[8];
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199 if (_PyFloat_Pack8(PyComplex_RealAsDouble(v),
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200 buf, 1) < 0) {
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201 p->error = 1;
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202 return;
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203 }
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204 w_byte(TYPE_BINARY_COMPLEX, p);
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205 w_string((char*)buf, 8, p);
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206 if (_PyFloat_Pack8(PyComplex_ImagAsDouble(v),
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207 buf, 1) < 0) {
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208 p->error = 1;
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209 return;
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210 }
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211 w_string((char*)buf, 8, p);
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212 }
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213 else {
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214 char buf[256]; /* Plenty to format any double */
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215 PyFloatObject *temp;
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216 w_byte(TYPE_COMPLEX, p);
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217 temp = (PyFloatObject*)PyFloat_FromDouble(
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218 PyComplex_RealAsDouble(v));
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219 if (!temp) {
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220 p->error = 1;
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221 return;
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222 }
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223 PyFloat_AsReprString(buf, temp);
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224 Py_DECREF(temp);
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225 n = strlen(buf);
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226 w_byte((int)n, p);
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227 w_string(buf, (int)n, p);
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228 temp = (PyFloatObject*)PyFloat_FromDouble(
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229 PyComplex_ImagAsDouble(v));
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230 if (!temp) {
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231 p->error = 1;
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232 return;
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233 }
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234 PyFloat_AsReprString(buf, temp);
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235 Py_DECREF(temp);
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236 n = strlen(buf);
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237 w_byte((int)n, p);
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238 w_string(buf, (int)n, p);
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239 }
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240 }
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241 #endif
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242 else if (PyString_CheckExact(v)) {
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243 if (p->strings && PyString_CHECK_INTERNED(v)) {
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244 PyObject *o = PyDict_GetItem(p->strings, v);
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245 if (o) {
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246 long w = PyInt_AsLong(o);
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247 w_byte(TYPE_STRINGREF, p);
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248 w_long(w, p);
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249 goto exit;
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250 }
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251 else {
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252 int ok;
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253 o = PyInt_FromSsize_t(PyDict_Size(p->strings));
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254 ok = o &&
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255 PyDict_SetItem(p->strings, v, o) >= 0;
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256 Py_XDECREF(o);
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257 if (!ok) {
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258 p->depth--;
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259 p->error = 1;
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260 return;
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261 }
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262 w_byte(TYPE_INTERNED, p);
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263 }
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264 }
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265 else {
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266 w_byte(TYPE_STRING, p);
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267 }
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268 n = PyString_GET_SIZE(v);
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269 if (n > INT_MAX) {
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270 /* huge strings are not supported */
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271 p->depth--;
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272 p->error = 1;
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273 return;
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274 }
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275 w_long((long)n, p);
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276 w_string(PyString_AS_STRING(v), (int)n, p);
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277 }
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278 #ifdef Py_USING_UNICODE
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279 else if (PyUnicode_CheckExact(v)) {
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280 PyObject *utf8;
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281 utf8 = PyUnicode_AsUTF8String(v);
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282 if (utf8 == NULL) {
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283 p->depth--;
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284 p->error = 1;
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285 return;
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286 }
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287 w_byte(TYPE_UNICODE, p);
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288 n = PyString_GET_SIZE(utf8);
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289 if (n > INT_MAX) {
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290 p->depth--;
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291 p->error = 1;
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292 return;
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293 }
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294 w_long((long)n, p);
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295 w_string(PyString_AS_STRING(utf8), (int)n, p);
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296 Py_DECREF(utf8);
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297 }
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298 #endif
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299 else if (PyTuple_CheckExact(v)) {
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300 w_byte(TYPE_TUPLE, p);
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301 n = PyTuple_Size(v);
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302 w_long((long)n, p);
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303 for (i = 0; i < n; i++) {
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304 w_object(PyTuple_GET_ITEM(v, i), p);
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305 }
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306 }
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307 else if (PyList_CheckExact(v)) {
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308 w_byte(TYPE_LIST, p);
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309 n = PyList_GET_SIZE(v);
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310 w_long((long)n, p);
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311 for (i = 0; i < n; i++) {
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312 w_object(PyList_GET_ITEM(v, i), p);
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313 }
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314 }
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315 else if (PyDict_CheckExact(v)) {
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316 Py_ssize_t pos;
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317 PyObject *key, *value;
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318 w_byte(TYPE_DICT, p);
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319 /* This one is NULL object terminated! */
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320 pos = 0;
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321 while (PyDict_Next(v, &pos, &key, &value)) {
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322 w_object(key, p);
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323 w_object(value, p);
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324 }
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325 w_object((PyObject *)NULL, p);
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326 }
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327 else if (PyAnySet_CheckExact(v)) {
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328 PyObject *value, *it;
34394
b480abaf1f6f SF 1098985: set objects cannot be marshalled
Raymond Hettinger <python@rcn.com>
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329
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330 if (PyObject_TypeCheck(v, &PySet_Type))
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331 w_byte(TYPE_SET, p);
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332 else
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333 w_byte(TYPE_FROZENSET, p);
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334 n = PyObject_Size(v);
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335 if (n == -1) {
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336 p->depth--;
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337 p->error = 1;
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338 return;
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339 }
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340 w_long((long)n, p);
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341 it = PyObject_GetIter(v);
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342 if (it == NULL) {
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343 p->depth--;
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344 p->error = 1;
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345 return;
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346 }
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347 while ((value = PyIter_Next(it)) != NULL) {
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348 w_object(value, p);
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349 Py_DECREF(value);
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350 }
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351 Py_DECREF(it);
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352 if (PyErr_Occurred()) {
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353 p->depth--;
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354 p->error = 1;
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355 return;
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356 }
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357 }
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358 else if (PyCode_Check(v)) {
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359 PyCodeObject *co = (PyCodeObject *)v;
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360 w_byte(TYPE_CODE, p);
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361 w_long(co->co_argcount, p);
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362 w_long(co->co_nlocals, p);
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363 w_long(co->co_stacksize, p);
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364 w_long(co->co_flags, p);
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365 w_object(co->co_code, p);
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366 w_object(co->co_consts, p);
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367 w_object(co->co_names, p);
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368 w_object(co->co_varnames, p);
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369 w_object(co->co_freevars, p);
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370 w_object(co->co_cellvars, p);
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371 w_object(co->co_filename, p);
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372 w_object(co->co_name, p);
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373 w_long(co->co_firstlineno, p);
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374 w_object(co->co_lnotab, p);
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375 }
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376 else if (PyObject_CheckReadBuffer(v)) {
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377 /* Write unknown buffer-style objects as a string */
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378 char *s;
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379 PyBufferProcs *pb = v->ob_type->tp_as_buffer;
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380 w_byte(TYPE_STRING, p);
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381 n = (*pb->bf_getreadbuffer)(v, 0, (void **)&s);
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382 if (n > INT_MAX) {
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383 p->depth--;
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384 p->error = 1;
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385 return;
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386 }
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387 w_long((long)n, p);
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388 w_string(s, (int)n, p);
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389 }
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390 else {
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391 w_byte(TYPE_UNKNOWN, p);
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392 p->error = 1;
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393 }
32422
3df36e2e5ddc Patch #923098: Share interned strings in marshal.
Martin v. Löwis <martin@v.loewis.de>
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394 exit:
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395 p->depth--;
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
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396 }
457661e47c7b Initial revision
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397
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398 /* version currently has no effect for writing longs. */
267
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399 void
32422
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400 PyMarshal_WriteLongToFile(long x, FILE *fp, int version)
267
457661e47c7b Initial revision
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401 {
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402 WFILE wf;
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403 wf.fp = fp;
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404 wf.error = 0;
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405 wf.depth = 0;
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406 wf.strings = NULL;
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407 wf.version = version;
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408 w_long(x, &wf);
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409 }
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410
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411 void
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412 PyMarshal_WriteObjectToFile(PyObject *x, FILE *fp, int version)
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413 {
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414 WFILE wf;
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415 wf.fp = fp;
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416 wf.error = 0;
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417 wf.depth = 0;
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418 wf.strings = (version > 0) ? PyDict_New() : NULL;
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419 wf.version = version;
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420 w_object(x, &wf);
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421 Py_XDECREF(wf.strings);
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422 }
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423
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424 typedef WFILE RFILE; /* Same struct with different invariants */
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425
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426 #define rs_byte(p) (((p)->ptr < (p)->end) ? (unsigned char)*(p)->ptr++ : EOF)
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427
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428 #define r_byte(p) ((p)->fp ? getc((p)->fp) : rs_byte(p))
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429
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430 static int
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431 r_string(char *s, int n, RFILE *p)
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432 {
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433 if (p->fp != NULL)
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434 /* The result fits into int because it must be <=n. */
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435 return (int)fread(s, 1, n, p->fp);
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436 if (p->end - p->ptr < n)
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437 n = (int)(p->end - p->ptr);
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438 memcpy(s, p->ptr, n);
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439 p->ptr += n;
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440 return n;
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441 }
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442
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443 static int
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444 r_short(RFILE *p)
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445 {
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446 register short x;
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447 x = r_byte(p);
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448 x |= r_byte(p) << 8;
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449 /* Sign-extension, in case short greater than 16 bits */
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450 x |= -(x & 0x8000);
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451 return x;
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452 }
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453
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454 static long
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455 r_long(RFILE *p)
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456 {
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457 register long x;
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458 register FILE *fp = p->fp;
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459 if (fp) {
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460 x = getc(fp);
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461 x |= (long)getc(fp) << 8;
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462 x |= (long)getc(fp) << 16;
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463 x |= (long)getc(fp) << 24;
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464 }
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465 else {
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466 x = rs_byte(p);
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467 x |= (long)rs_byte(p) << 8;
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468 x |= (long)rs_byte(p) << 16;
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469 x |= (long)rs_byte(p) << 24;
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470 }
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471 #if SIZEOF_LONG > 4
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472 /* Sign extension for 64-bit machines */
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473 x |= -(x & 0x80000000L);
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474 #endif
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475 return x;
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476 }
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477
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478 /* r_long64 deals with the TYPE_INT64 code. On a machine with
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479 sizeof(long) > 4, it returns a Python int object, else a Python long
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480 object. Note that w_long64 writes out TYPE_INT if 32 bits is enough,
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481 so there's no inefficiency here in returning a PyLong on 32-bit boxes
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482 for everything written via TYPE_INT64 (i.e., if an int is written via
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483 TYPE_INT64, it *needs* more than 32 bits).
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484 */
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485 static PyObject *
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486 r_long64(RFILE *p)
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487 {
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488 long lo4 = r_long(p);
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489 long hi4 = r_long(p);
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490 #if SIZEOF_LONG > 4
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491 long x = (hi4 << 32) | (lo4 & 0xFFFFFFFFL);
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492 return PyInt_FromLong(x);
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493 #else
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494 unsigned char buf[8];
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495 int one = 1;
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496 int is_little_endian = (int)*(char*)&one;
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497 if (is_little_endian) {
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498 memcpy(buf, &lo4, 4);
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499 memcpy(buf+4, &hi4, 4);
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500 }
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501 else {
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502 memcpy(buf, &hi4, 4);
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503 memcpy(buf+4, &lo4, 4);
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504 }
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505 return _PyLong_FromByteArray(buf, 8, is_little_endian, 1);
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506 #endif
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507 }
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508
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509 static PyObject *
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510 r_object(RFILE *p)
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511 {
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512 /* NULL is a valid return value, it does not necessarily means that
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513 an exception is set. */
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514 PyObject *v, *v2;
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515 long i, n;
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516 int type = r_byte(p);
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517 PyObject *retval;
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518
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519 p->depth++;
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520
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521 if (p->depth > MAX_MARSHAL_STACK_DEPTH) {
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522 p->depth--;
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523 PyErr_SetString(PyExc_ValueError, "recursion limit exceeded");
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524 return NULL;
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525 }
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526
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527 switch (type) {
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528
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529 case EOF:
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530 PyErr_SetString(PyExc_EOFError,
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531 "EOF read where object expected");
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532 retval = NULL;
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533 break;
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534
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535 case TYPE_NULL:
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536 retval = NULL;
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537 break;
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Tim Peters <tim.peters@gmail.com>
parents: 16257
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538
61465
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539 case TYPE_NONE:
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540 Py_INCREF(Py_None);
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541 retval = Py_None;
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542 break;
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parents: 16257
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543
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544 case TYPE_STOPITER:
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545 Py_INCREF(PyExc_StopIteration);
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546 retval = PyExc_StopIteration;
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diff changeset
547 break;
18148
7bc473b2c654 Merging the gen-branch into the main line, at Guido's direction. Yay!
Tim Peters <tim.peters@gmail.com>
parents: 17707
diff changeset
548
61465
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549 case TYPE_ELLIPSIS:
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550 Py_INCREF(Py_Ellipsis);
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diff changeset
551 retval = Py_Ellipsis;
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552 break;
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parents: 16257
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553
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554 case TYPE_FALSE:
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555 Py_INCREF(Py_False);
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556 retval = Py_False;
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557 break;
22785
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parents: 22705
diff changeset
558
61465
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559 case TYPE_TRUE:
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560 Py_INCREF(Py_True);
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561 retval = Py_True;
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562 break;
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parents: 22705
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563
61465
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564 case TYPE_INT:
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565 retval = PyInt_FromLong(r_long(p));
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566 break;
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parents: 16257
diff changeset
567
61465
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568 case TYPE_INT64:
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569 retval = r_long64(p);
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570 break;
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parents: 16257
diff changeset
571
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572 case TYPE_LONG:
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diff changeset
573 {
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diff changeset
574 int size;
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575 PyLongObject *ob;
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576 n = r_long(p);
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577 if (n < -INT_MAX || n > INT_MAX) {
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diff changeset
578 PyErr_SetString(PyExc_ValueError,
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diff changeset
579 "bad marshal data");
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580 retval = NULL;
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581 break;
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582 }
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583 size = n<0 ? -n : n;
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diff changeset
584 ob = _PyLong_New(size);
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585 if (ob == NULL) {
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586 retval = NULL;
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587 break;
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588 }
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589 ob->ob_size = n;
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diff changeset
590 for (i = 0; i < size; i++) {
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591 int digit = r_short(p);
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592 if (digit < 0 ||
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593 (digit == 0 && i == size-1)) {
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594 Py_DECREF(ob);
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595 PyErr_SetString(PyExc_ValueError,
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596 "bad marshal data");
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diff changeset
597 ob = NULL;
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598 break;
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599 }
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600 if (ob != NULL)
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601 ob->ob_digit[i] = digit;
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602 }
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603 retval = (PyObject *)ob;
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604 break;
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605 }
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Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
606
61465
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607 case TYPE_FLOAT:
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608 {
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diff changeset
609 char buf[256];
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diff changeset
610 double dx;
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diff changeset
611 n = r_byte(p);
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diff changeset
612 if (n == EOF || r_string(buf, (int)n, p) != n) {
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diff changeset
613 PyErr_SetString(PyExc_EOFError,
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diff changeset
614 "EOF read where object expected");
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diff changeset
615 retval = NULL;
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616 break;
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617 }
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618 buf[n] = '\0';
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619 retval = NULL;
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620 PyFPE_START_PROTECT("atof", break)
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621 dx = PyOS_ascii_atof(buf);
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622 PyFPE_END_PROTECT(dx)
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623 retval = PyFloat_FromDouble(dx);
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624 break;
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625 }
16311
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parents: 16257
diff changeset
626
61465
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627 case TYPE_BINARY_FLOAT:
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628 {
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629 unsigned char buf[8];
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diff changeset
630 double x;
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631 if (r_string((char*)buf, 8, p) != 8) {
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632 PyErr_SetString(PyExc_EOFError,
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diff changeset
633 "EOF read where object expected");
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diff changeset
634 retval = NULL;
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635 break;
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636 }
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637 x = _PyFloat_Unpack8(buf, 1);
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638 if (x == -1.0 && PyErr_Occurred()) {
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639 retval = NULL;
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640 break;
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641 }
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642 retval = PyFloat_FromDouble(x);
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643 break;
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644 }
35008
44e3f21f0525 This is my patch:
Michael W. Hudson <mwh@python.net>
parents: 34413
diff changeset
645
3323
6098aaa8ae7f changes for complex numbers
Guido van Rossum <guido@python.org>
parents: 3234
diff changeset
646 #ifndef WITHOUT_COMPLEX
61465
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647 case TYPE_COMPLEX:
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648 {
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649 char buf[256];
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650 Py_complex c;
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651 n = r_byte(p);
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652 if (n == EOF || r_string(buf, (int)n, p) != n) {
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653 PyErr_SetString(PyExc_EOFError,
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diff changeset
654 "EOF read where object expected");
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655 retval = NULL;
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656 break;
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657 }
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658 buf[n] = '\0';
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659 retval = NULL;
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660 PyFPE_START_PROTECT("atof", break;)
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661 c.real = PyOS_ascii_atof(buf);
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662 PyFPE_END_PROTECT(c)
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663 n = r_byte(p);
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664 if (n == EOF || r_string(buf, (int)n, p) != n) {
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665 PyErr_SetString(PyExc_EOFError,
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666 "EOF read where object expected");
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667 retval = NULL;
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668 break;
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669 }
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670 buf[n] = '\0';
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671 PyFPE_START_PROTECT("atof", break)
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diff changeset
672 c.imag = PyOS_ascii_atof(buf);
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diff changeset
673 PyFPE_END_PROTECT(c)
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diff changeset
674 retval = PyComplex_FromCComplex(c);
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diff changeset
675 break;
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diff changeset
676 }
35008
44e3f21f0525 This is my patch:
Michael W. Hudson <mwh@python.net>
parents: 34413
diff changeset
677
61465
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diff changeset
678 case TYPE_BINARY_COMPLEX:
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679 {
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diff changeset
680 unsigned char buf[8];
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diff changeset
681 Py_complex c;
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diff changeset
682 if (r_string((char*)buf, 8, p) != 8) {
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diff changeset
683 PyErr_SetString(PyExc_EOFError,
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diff changeset
684 "EOF read where object expected");
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diff changeset
685 retval = NULL;
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diff changeset
686 break;
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diff changeset
687 }
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diff changeset
688 c.real = _PyFloat_Unpack8(buf, 1);
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diff changeset
689 if (c.real == -1.0 && PyErr_Occurred()) {
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diff changeset
690 retval = NULL;
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diff changeset
691 break;
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diff changeset
692 }
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diff changeset
693 if (r_string((char*)buf, 8, p) != 8) {
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diff changeset
694 PyErr_SetString(PyExc_EOFError,
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diff changeset
695 "EOF read where object expected");
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diff changeset
696 retval = NULL;
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diff changeset
697 break;
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diff changeset
698 }
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diff changeset
699 c.imag = _PyFloat_Unpack8(buf, 1);
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diff changeset
700 if (c.imag == -1.0 && PyErr_Occurred()) {
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diff changeset
701 retval = NULL;
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diff changeset
702 break;
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diff changeset
703 }
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diff changeset
704 retval = PyComplex_FromCComplex(c);
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diff changeset
705 break;
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diff changeset
706 }
3323
6098aaa8ae7f changes for complex numbers
Guido van Rossum <guido@python.org>
parents: 3234
diff changeset
707 #endif
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
708
61465
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diff changeset
709 case TYPE_INTERNED:
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parents: 56344
diff changeset
710 case TYPE_STRING:
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parents: 56344
diff changeset
711 n = r_long(p);
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parents: 56344
diff changeset
712 if (n < 0 || n > INT_MAX) {
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parents: 56344
diff changeset
713 PyErr_SetString(PyExc_ValueError, "bad marshal data");
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Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
714 retval = NULL;
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diff changeset
715 break;
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diff changeset
716 }
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diff changeset
717 v = PyString_FromStringAndSize((char *)NULL, n);
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diff changeset
718 if (v == NULL) {
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diff changeset
719 retval = NULL;
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diff changeset
720 break;
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diff changeset
721 }
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diff changeset
722 if (r_string(PyString_AS_STRING(v), (int)n, p) != n) {
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diff changeset
723 Py_DECREF(v);
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diff changeset
724 PyErr_SetString(PyExc_EOFError,
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diff changeset
725 "EOF read where object expected");
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parents: 56344
diff changeset
726 retval = NULL;
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diff changeset
727 break;
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diff changeset
728 }
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parents: 56344
diff changeset
729 if (type == TYPE_INTERNED) {
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diff changeset
730 PyString_InternInPlace(&v);
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parents: 56344
diff changeset
731 if (PyList_Append(p->strings, v) < 0) {
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parents: 56344
diff changeset
732 retval = NULL;
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diff changeset
733 break;
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734 }
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diff changeset
735 }
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parents: 56344
diff changeset
736 retval = v;
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diff changeset
737 break;
32422
3df36e2e5ddc Patch #923098: Share interned strings in marshal.
Martin v. Löwis <martin@v.loewis.de>
parents: 32343
diff changeset
738
61465
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diff changeset
739 case TYPE_STRINGREF:
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740 n = r_long(p);
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diff changeset
741 if (n < 0 || n >= PyList_GET_SIZE(p->strings)) {
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diff changeset
742 PyErr_SetString(PyExc_ValueError, "bad marshal data");
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diff changeset
743 retval = NULL;
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diff changeset
744 break;
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745 }
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diff changeset
746 v = PyList_GET_ITEM(p->strings, n);
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parents: 56344
diff changeset
747 Py_INCREF(v);
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diff changeset
748 retval = v;
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diff changeset
749 break;
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
750
19343
7257e87e0720 Patch #445762: Support --disable-unicode
Martin v. Löwis <martin@v.loewis.de>
parents: 18148
diff changeset
751 #ifdef Py_USING_UNICODE
61465
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diff changeset
752 case TYPE_UNICODE:
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diff changeset
753 {
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diff changeset
754 char *buffer;
11976
513354d87a85 Marc-Andre Lemburg: support marshalling Unicode objects (code 'u').
Guido van Rossum <guido@python.org>
parents: 9300
diff changeset
755
61465
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diff changeset
756 n = r_long(p);
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757 if (n < 0 || n > INT_MAX) {
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diff changeset
758 PyErr_SetString(PyExc_ValueError, "bad marshal data");
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diff changeset
759 retval = NULL;
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diff changeset
760 break;
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761 }
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diff changeset
762 buffer = PyMem_NEW(char, n);
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diff changeset
763 if (buffer == NULL) {
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diff changeset
764 retval = PyErr_NoMemory();
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765 break;
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766 }
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767 if (r_string(buffer, (int)n, p) != n) {
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diff changeset
768 PyMem_DEL(buffer);
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diff changeset
769 PyErr_SetString(PyExc_EOFError,
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diff changeset
770 "EOF read where object expected");
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diff changeset
771 retval = NULL;
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diff changeset
772 break;
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773 }
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774 v = PyUnicode_DecodeUTF8(buffer, n, NULL);
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diff changeset
775 PyMem_DEL(buffer);
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diff changeset
776 retval = v;
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diff changeset
777 break;
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778 }
19343
7257e87e0720 Patch #445762: Support --disable-unicode
Martin v. Löwis <martin@v.loewis.de>
parents: 18148
diff changeset
779 #endif
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
780
61465
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diff changeset
781 case TYPE_TUPLE:
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782 n = r_long(p);
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783 if (n < 0 || n > INT_MAX) {
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parents: 56344
diff changeset
784 PyErr_SetString(PyExc_ValueError, "bad marshal data");
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diff changeset
785 retval = NULL;
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diff changeset
786 break;
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787 }
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diff changeset
788 v = PyTuple_New((int)n);
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diff changeset
789 if (v == NULL) {
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parents: 56344
diff changeset
790 retval = NULL;
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791 break;
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792 }
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diff changeset
793 for (i = 0; i < n; i++) {
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parents: 56344
diff changeset
794 v2 = r_object(p);
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parents: 56344
diff changeset
795 if ( v2 == NULL ) {
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parents: 56344
diff changeset
796 if (!PyErr_Occurred())
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797 PyErr_SetString(PyExc_TypeError,
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diff changeset
798 "NULL object in marshal data");
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diff changeset
799 Py_DECREF(v);
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diff changeset
800 v = NULL;
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diff changeset
801 break;
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802 }
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diff changeset
803 PyTuple_SET_ITEM(v, (int)i, v2);
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diff changeset
804 }
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diff changeset
805 retval = v;
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diff changeset
806 break;
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
807
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
808 case TYPE_LIST:
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
809 n = r_long(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
810 if (n < 0 || n > INT_MAX) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
811 PyErr_SetString(PyExc_ValueError, "bad marshal data");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
812 retval = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
813 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
814 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
815 v = PyList_New((int)n);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
816 if (v == NULL) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
817 retval = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
818 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
819 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
820 for (i = 0; i < n; i++) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
821 v2 = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
822 if ( v2 == NULL ) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
823 if (!PyErr_Occurred())
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
824 PyErr_SetString(PyExc_TypeError,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
825 "NULL object in marshal data");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
826 Py_DECREF(v);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
827 v = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
828 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
829 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
830 PyList_SET_ITEM(v, (int)i, v2);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
831 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
832 retval = v;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
833 break;
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
834
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
835 case TYPE_DICT:
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
836 v = PyDict_New();
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
837 if (v == NULL) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
838 retval = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
839 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
840 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
841 for (;;) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
842 PyObject *key, *val;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
843 key = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
844 if (key == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
845 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
846 val = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
847 if (val != NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
848 PyDict_SetItem(v, key, val);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
849 Py_DECREF(key);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
850 Py_XDECREF(val);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
851 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
852 if (PyErr_Occurred()) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
853 Py_DECREF(v);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
854 v = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
855 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
856 retval = v;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
857 break;
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
858
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
859 case TYPE_SET:
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
860 case TYPE_FROZENSET:
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
861 n = r_long(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
862 if (n < 0 || n > INT_MAX) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
863 PyErr_SetString(PyExc_ValueError, "bad marshal data");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
864 retval = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
865 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
866 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
867 v = (type == TYPE_SET) ? PySet_New(NULL) : PyFrozenSet_New(NULL);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
868 if (v == NULL) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
869 retval = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
870 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
871 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
872 for (i = 0; i < n; i++) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
873 v2 = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
874 if ( v2 == NULL ) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
875 if (!PyErr_Occurred())
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
876 PyErr_SetString(PyExc_TypeError,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
877 "NULL object in marshal data");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
878 Py_DECREF(v);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
879 v = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
880 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
881 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
882 if (PySet_Add(v, v2) == -1) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
883 Py_DECREF(v);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
884 Py_DECREF(v2);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
885 v = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
886 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
887 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
888 Py_DECREF(v2);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
889 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
890 retval = v;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
891 break;
34394
b480abaf1f6f SF 1098985: set objects cannot be marshalled
Raymond Hettinger <python@rcn.com>
parents: 34205
diff changeset
892
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
893 case TYPE_CODE:
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
894 if (PyEval_GetRestricted()) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
895 PyErr_SetString(PyExc_RuntimeError,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
896 "cannot unmarshal code objects in "
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
897 "restricted execution mode");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
898 retval = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
899 break;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
900 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
901 else {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
902 int argcount;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
903 int nlocals;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
904 int stacksize;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
905 int flags;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
906 PyObject *code = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
907 PyObject *consts = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
908 PyObject *names = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
909 PyObject *varnames = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
910 PyObject *freevars = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
911 PyObject *cellvars = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
912 PyObject *filename = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
913 PyObject *name = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
914 int firstlineno;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
915 PyObject *lnotab = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
916
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
917 v = NULL;
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
918
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
919 /* XXX ignore long->int overflows for now */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
920 argcount = (int)r_long(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
921 nlocals = (int)r_long(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
922 stacksize = (int)r_long(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
923 flags = (int)r_long(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
924 code = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
925 if (code == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
926 goto code_error;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
927 consts = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
928 if (consts == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
929 goto code_error;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
930 names = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
931 if (names == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
932 goto code_error;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
933 varnames = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
934 if (varnames == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
935 goto code_error;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
936 freevars = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
937 if (freevars == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
938 goto code_error;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
939 cellvars = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
940 if (cellvars == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
941 goto code_error;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
942 filename = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
943 if (filename == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
944 goto code_error;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
945 name = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
946 if (name == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
947 goto code_error;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
948 firstlineno = (int)r_long(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
949 lnotab = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
950 if (lnotab == NULL)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
951 goto code_error;
35008
44e3f21f0525 This is my patch:
Michael W. Hudson <mwh@python.net>
parents: 34413
diff changeset
952
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
953 v = (PyObject *) PyCode_New(
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
954 argcount, nlocals, stacksize, flags,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
955 code, consts, names, varnames,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
956 freevars, cellvars, filename, name,
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
957 firstlineno, lnotab);
35008
44e3f21f0525 This is my patch:
Michael W. Hudson <mwh@python.net>
parents: 34413
diff changeset
958
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
959 code_error:
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
960 Py_XDECREF(code);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
961 Py_XDECREF(consts);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
962 Py_XDECREF(names);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
963 Py_XDECREF(varnames);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
964 Py_XDECREF(freevars);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
965 Py_XDECREF(cellvars);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
966 Py_XDECREF(filename);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
967 Py_XDECREF(name);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
968 Py_XDECREF(lnotab);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
969
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
970 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
971 retval = v;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
972 break;
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
973
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
974 default:
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
975 /* Bogus data got written, which isn't ideal.
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
976 This will let you keep working and recover. */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
977 PyErr_SetString(PyExc_ValueError, "bad marshal data");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
978 retval = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
979 break;
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
980
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
981 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
982 p->depth--;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
983 return retval;
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
984 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
985
32343
54b257e55f99 Make private function static
Neal Norwitz <nnorwitz@gmail.com>
parents: 32305
diff changeset
986 static PyObject *
31824
331de8b9d1ed Marshal clean-up (SF patch #873224)
Armin Rigo <arigo@tunes.org>
parents: 30311
diff changeset
987 read_object(RFILE *p)
331de8b9d1ed Marshal clean-up (SF patch #873224)
Armin Rigo <arigo@tunes.org>
parents: 30311
diff changeset
988 {
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
989 PyObject *v;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
990 if (PyErr_Occurred()) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
991 fprintf(stderr, "XXX readobject called with exception set\n");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
992 return NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
993 }
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
994 v = r_object(p);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
995 if (v == NULL && !PyErr_Occurred())
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
996 PyErr_SetString(PyExc_TypeError, "NULL object in marshal data");
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
997 return v;
31824
331de8b9d1ed Marshal clean-up (SF patch #873224)
Armin Rigo <arigo@tunes.org>
parents: 30311
diff changeset
998 }
331de8b9d1ed Marshal clean-up (SF patch #873224)
Armin Rigo <arigo@tunes.org>
parents: 30311
diff changeset
999
20552
65dd6157f999 SF patch #470393 (Jim Ahlstrom): Add missing marshal function
Guido van Rossum <guido@python.org>
parents: 19605
diff changeset
1000 int
65dd6157f999 SF patch #470393 (Jim Ahlstrom): Add missing marshal function
Guido van Rossum <guido@python.org>
parents: 19605
diff changeset
1001 PyMarshal_ReadShortFromFile(FILE *fp)
65dd6157f999 SF patch #470393 (Jim Ahlstrom): Add missing marshal function
Guido van Rossum <guido@python.org>
parents: 19605
diff changeset
1002 {
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1003 RFILE rf;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1004 assert(fp);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1005 rf.fp = fp;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1006 rf.strings = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1007 rf.end = rf.ptr = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1008 return r_short(&rf);
20552
65dd6157f999 SF patch #470393 (Jim Ahlstrom): Add missing marshal function
Guido van Rossum <guido@python.org>
parents: 19605
diff changeset
1009 }
65dd6157f999 SF patch #470393 (Jim Ahlstrom): Add missing marshal function
Guido van Rossum <guido@python.org>
parents: 19605
diff changeset
1010
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
1011 long
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13447
diff changeset
1012 PyMarshal_ReadLongFromFile(FILE *fp)
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
1013 {
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1014 RFILE rf;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1015 rf.fp = fp;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1016 rf.strings = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1017 rf.ptr = rf.end = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1018 return r_long(&rf);
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
1019 }
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
1020
15979
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1021 #ifdef HAVE_FSTAT
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1022 /* Return size of file in bytes; < 0 if unknown. */
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1023 static off_t
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1024 getfilesize(FILE *fp)
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1025 {
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1026 struct stat st;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1027 if (fstat(fileno(fp), &st) != 0)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1028 return -1;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1029 else
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1030 return st.st_size;
15979
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1031 }
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1032 #endif
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1033
15979
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1034 /* If we can get the size of the file up-front, and it's reasonably small,
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1035 * read it in one gulp and delegate to ...FromString() instead. Much quicker
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1036 * than reading a byte at a time from file; speeds .pyc imports.
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1037 * CAUTION: since this may read the entire remainder of the file, don't
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1038 * call it unless you know you're done with the file.
15979
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1039 */
5373
5880384d7c71 Quickly renamed the remaining files -- this directory is done.
Guido van Rossum <guido@python.org>
parents: 5197
diff changeset
1040 PyObject *
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1041 PyMarshal_ReadLastObjectFromFile(FILE *fp)
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
1042 {
15979
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1043 /* 75% of 2.1's .pyc files can exploit SMALL_FILE_LIMIT.
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1044 * REASONABLE_FILE_LIMIT is by defn something big enough for Tkinter.pyc.
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1045 */
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1046 #define SMALL_FILE_LIMIT (1L << 14)
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1047 #define REASONABLE_FILE_LIMIT (1L << 18)
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1048 #ifdef HAVE_FSTAT
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1049 off_t filesize;
15979
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1050 #endif
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1051 #ifdef HAVE_FSTAT
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1052 filesize = getfilesize(fp);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1053 if (filesize > 0) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1054 char buf[SMALL_FILE_LIMIT];
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1055 char* pBuf = NULL;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1056 if (filesize <= SMALL_FILE_LIMIT)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1057 pBuf = buf;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1058 else if (filesize <= REASONABLE_FILE_LIMIT)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1059 pBuf = (char *)PyMem_MALLOC(filesize);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1060 if (pBuf != NULL) {
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1061 PyObject* v;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1062 size_t n;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1063 /* filesize must fit into an int, because it
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1064 is smaller than REASONABLE_FILE_LIMIT */
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1065 n = fread(pBuf, 1, (int)filesize, fp);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1066 v = PyMarshal_ReadObjectFromString(pBuf, n);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1067 if (pBuf != buf)
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1068 PyMem_FREE(pBuf);
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1069 return v;
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1070 }
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1071
61465
e38335d4df91 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 56344
diff changeset
1072 }
15979
a36a4932e399 Variant of SF patch 103252: Startup optimize: read *.pyc as string, not with getc().
Tim Peters <tim.peters@gmail.com>
parents: 15408
diff changeset
1073 #endif
61465
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diff changeset
1074 /* We don't have fstat, or we do but the file is larger than
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parents: 56344
diff changeset
1075 * REASONABLE_FILE_LIMIT or malloc failed -- read a byte at a time.
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diff changeset
1076 */
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diff changeset
1077 return PyMarshal_ReadObjectFromFile(fp);
16311
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1078
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1079 #undef SMALL_FILE_LIMIT
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1080 #undef REASONABLE_FILE_LIMIT
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1081 }
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1082
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1083 PyObject *
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1084 PyMarshal_ReadObjectFromFile(FILE *fp)
8c41f3861aad It's unclear whether PyMarshal_XXX() are part of the public or private API.
Tim Peters <tim.peters@gmail.com>
parents: 16257
diff changeset
1085 {
61465
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diff changeset
1086 RFILE rf;
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parents: 56344
diff changeset
1087 PyObject *result;
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parents: 56344
diff changeset
1088 rf.fp = fp;
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parents: 56344
diff changeset
1089 rf.strings = PyList_New(0);
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parents: 56344
diff changeset
1090 rf.depth = 0;
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parents: 56344
diff changeset
1091 rf.ptr = rf.end = NULL;
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parents: 56344
diff changeset
1092 result = r_object(&rf);
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diff changeset
1093 Py_DECREF(rf.strings);
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diff changeset
1094 return result;
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
1095 }
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
1096
5373
5880384d7c71 Quickly renamed the remaining files -- this directory is done.
Guido van Rossum <guido@python.org>
parents: 5197
diff changeset
1097 PyObject *
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36324
diff changeset
1098 PyMarshal_ReadObjectFromString(char *str, Py_ssize_t len)
1270
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1099 {
61465
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diff changeset
1100 RFILE rf;
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diff changeset
1101 PyObject *result;
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diff changeset
1102 rf.fp = NULL;
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diff changeset
1103 rf.ptr = str;
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diff changeset
1104 rf.end = str + len;
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parents: 56344
diff changeset
1105 rf.strings = PyList_New(0);
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diff changeset
1106 rf.depth = 0;
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diff changeset
1107 result = r_object(&rf);
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diff changeset
1108 Py_DECREF(rf.strings);
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diff changeset
1109 return result;
1270
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1110 }
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1111
5373
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Guido van Rossum <guido@python.org>
parents: 5197
diff changeset
1112 PyObject *
32422
3df36e2e5ddc Patch #923098: Share interned strings in marshal.
Martin v. Löwis <martin@v.loewis.de>
parents: 32343
diff changeset
1113 PyMarshal_WriteObjectToString(PyObject *x, int version)
4039
23f280ab5409 Added *PyMarshal_WriteObjectToString() (moved the relevant code there
Guido van Rossum <guido@python.org>
parents: 3839
diff changeset
1114 {
61465
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diff changeset
1115 WFILE wf;
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diff changeset
1116 wf.fp = NULL;
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parents: 56344
diff changeset
1117 wf.str = PyString_FromStringAndSize((char *)NULL, 50);
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parents: 56344
diff changeset
1118 if (wf.str == NULL)
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parents: 56344
diff changeset
1119 return NULL;
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diff changeset
1120 wf.ptr = PyString_AS_STRING((PyStringObject *)wf.str);
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diff changeset
1121 wf.end = wf.ptr + PyString_Size(wf.str);
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parents: 56344
diff changeset
1122 wf.error = 0;
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diff changeset
1123 wf.depth = 0;
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parents: 56344
diff changeset
1124 wf.version = version;
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parents: 56344
diff changeset
1125 wf.strings = (version > 0) ? PyDict_New() : NULL;
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parents: 56344
diff changeset
1126 w_object(x, &wf);
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parents: 56344
diff changeset
1127 Py_XDECREF(wf.strings);
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parents: 56344
diff changeset
1128 if (wf.str != NULL) {
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parents: 56344
diff changeset
1129 char *base = PyString_AS_STRING((PyStringObject *)wf.str);
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parents: 56344
diff changeset
1130 if (wf.ptr - base > PY_SSIZE_T_MAX) {
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parents: 56344
diff changeset
1131 Py_DECREF(wf.str);
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diff changeset
1132 PyErr_SetString(PyExc_OverflowError,
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diff changeset
1133 "too much marshall data for a string");
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diff changeset
1134 return NULL;
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diff changeset
1135 }
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diff changeset
1136 _PyString_Resize(&wf.str, (Py_ssize_t)(wf.ptr - base));
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diff changeset
1137 }
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parents: 56344
diff changeset
1138 if (wf.error) {
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diff changeset
1139 Py_XDECREF(wf.str);
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diff changeset
1140 PyErr_SetString(PyExc_ValueError,
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diff changeset
1141 (wf.error==1)?"unmarshallable object"
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diff changeset
1142 :"object too deeply nested to marshal");
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diff changeset
1143 return NULL;
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diff changeset
1144 }
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diff changeset
1145 return wf.str;
4039
23f280ab5409 Added *PyMarshal_WriteObjectToString() (moved the relevant code there
Guido van Rossum <guido@python.org>
parents: 3839
diff changeset
1146 }
23f280ab5409 Added *PyMarshal_WriteObjectToString() (moved the relevant code there
Guido van Rossum <guido@python.org>
parents: 3839
diff changeset
1147
279
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
1148 /* And an interface for Python programs... */
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1149
5373
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Guido van Rossum <guido@python.org>
parents: 5197
diff changeset
1150 static PyObject *
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13447
diff changeset
1151 marshal_dump(PyObject *self, PyObject *args)
267
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Guido van Rossum <guido@python.org>
parents:
diff changeset
1152 {
61465
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diff changeset
1153 WFILE wf;
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parents: 56344
diff changeset
1154 PyObject *x;
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parents: 56344
diff changeset
1155 PyObject *f;
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parents: 56344
diff changeset
1156 int version = Py_MARSHAL_VERSION;
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parents: 56344
diff changeset
1157 if (!PyArg_ParseTuple(args, "OO|i:dump", &x, &f, &version))
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diff changeset
1158 return NULL;
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parents: 56344
diff changeset
1159 if (!PyFile_Check(f)) {
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parents: 56344
diff changeset
1160 PyErr_SetString(PyExc_TypeError,
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diff changeset
1161 "marshal.dump() 2nd arg must be file");
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parents: 56344
diff changeset
1162 return NULL;
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parents: 56344
diff changeset
1163 }
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diff changeset
1164 wf.fp = PyFile_AsFile(f);
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parents: 56344
diff changeset
1165 wf.str = NULL;
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parents: 56344
diff changeset
1166 wf.ptr = wf.end = NULL;
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parents: 56344
diff changeset
1167 wf.error = 0;
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parents: 56344
diff changeset
1168 wf.depth = 0;
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parents: 56344
diff changeset
1169 wf.strings = (version > 0) ? PyDict_New() : 0;
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parents: 56344
diff changeset
1170 wf.version = version;
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diff changeset
1171 w_object(x, &wf);
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diff changeset
1172 Py_XDECREF(wf.strings);
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parents: 56344
diff changeset
1173 if (wf.error) {
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parents: 56344
diff changeset
1174 PyErr_SetString(PyExc_ValueError,
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diff changeset
1175 (wf.error==1)?"unmarshallable object"
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diff changeset
1176 :"object too deeply nested to marshal");
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diff changeset
1177 return NULL;
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diff changeset
1178 }
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diff changeset
1179 Py_INCREF(Py_None);
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diff changeset
1180 return Py_None;
267
457661e47c7b Initial revision
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parents:
diff changeset
1181 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1182
54034
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parents: 47730
diff changeset
1183 PyDoc_STRVAR(dump_doc,
4ebe6b260c55 Merged revisions 72597 via svnmerge from
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diff changeset
1184 "dump(value, file[, version])\n\
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diff changeset
1185 \n\
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diff changeset
1186 Write the value on the open file. The value must be a supported type.\n\
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diff changeset
1187 The file must be an open file object such as sys.stdout or returned by\n\
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diff changeset
1188 open() or os.popen(). It must be opened in binary mode ('wb' or 'w+b').\n\
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diff changeset
1189 \n\
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diff changeset
1190 If the value has (or contains an object that has) an unsupported type, a\n\
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diff changeset
1191 ValueError exception is raised — but garbage data will also be written\n\
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diff changeset
1192 to the file. The object will not be properly read back by load()\n\
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diff changeset
1193 \n\
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diff changeset
1194 New in version 2.4: The version argument indicates the data format that\n\
4ebe6b260c55 Merged revisions 72597 via svnmerge from
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diff changeset
1195 dump should use.");
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diff changeset
1196
5373
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Guido van Rossum <guido@python.org>
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diff changeset
1197 static PyObject *
38490
a5298f371be7 Convert more modules to METH_VARARGS.
Georg Brandl <georg@python.org>
parents: 36866
diff changeset
1198 marshal_load(PyObject *self, PyObject *f)
267
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parents:
diff changeset
1199 {
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1200 RFILE rf;
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1201 PyObject *result;
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1202 if (!PyFile_Check(f)) {
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diff changeset
1203 PyErr_SetString(PyExc_TypeError,
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diff changeset
1204 "marshal.load() arg must be file");
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diff changeset
1205 return NULL;
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diff changeset
1206 }
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diff changeset
1207 rf.fp = PyFile_AsFile(f);
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diff changeset
1208 rf.strings = PyList_New(0);
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diff changeset
1209 rf.depth = 0;
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diff changeset
1210 result = read_object(&rf);
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diff changeset
1211 Py_DECREF(rf.strings);
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diff changeset
1212 return result;
1191
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1213 }
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1214
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1215 PyDoc_STRVAR(load_doc,
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diff changeset
1216 "load(file)\n\
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diff changeset
1217 \n\
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diff changeset
1218 Read one value from the open file and return it. If no valid value is\n\
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diff changeset
1219 read (e.g. because the data has a different Python version’s\n\
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diff changeset
1220 incompatible marshal format), raise EOFError, ValueError or TypeError.\n\
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diff changeset
1221 The file must be an open file object opened in binary mode ('rb' or\n\
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diff changeset
1222 'r+b').\n\
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diff changeset
1223 \n\
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diff changeset
1224 Note: If an object containing an unsupported type was marshalled with\n\
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diff changeset
1225 dump(), load() will substitute None for the unmarshallable type.");
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1226
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diff changeset
1227
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diff changeset
1228 static PyObject *
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parents: 13447
diff changeset
1229 marshal_dumps(PyObject *self, PyObject *args)
1191
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1230 {
61465
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1231 PyObject *x;
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diff changeset
1232 int version = Py_MARSHAL_VERSION;
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1233 if (!PyArg_ParseTuple(args, "O|i:dumps", &x, &version))
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1234 return NULL;
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diff changeset
1235 return PyMarshal_WriteObjectToString(x, version);
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1236 }
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1237
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1238 PyDoc_STRVAR(dumps_doc,
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diff changeset
1239 "dumps(value[, version])\n\
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1240 \n\
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1241 Return the string that would be written to a file by dump(value, file).\n\
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diff changeset
1242 The value must be a supported type. Raise a ValueError exception if\n\
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diff changeset
1243 value has (or contains an object that has) an unsupported type.\n\
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1244 \n\
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1245 New in version 2.4: The version argument indicates the data format that\n\
54038
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1246 dumps should use.");
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1247
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1248
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1249 static PyObject *
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diff changeset
1250 marshal_loads(PyObject *self, PyObject *args)
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1251 {
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1252 RFILE rf;
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diff changeset
1253 char *s;
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diff changeset
1254 Py_ssize_t n;
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diff changeset
1255 PyObject* result;
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diff changeset
1256 if (!PyArg_ParseTuple(args, "s#:loads", &s, &n))
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diff changeset
1257 return NULL;
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1258 rf.fp = NULL;
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diff changeset
1259 rf.ptr = s;
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diff changeset
1260 rf.end = s + n;
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diff changeset
1261 rf.strings = PyList_New(0);
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1262 rf.depth = 0;
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diff changeset
1263 result = read_object(&rf);
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1264 Py_DECREF(rf.strings);
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1265 return result;
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1266 }
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1267
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1268 PyDoc_STRVAR(loads_doc,
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diff changeset
1269 "loads(string)\n\
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diff changeset
1270 \n\
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diff changeset
1271 Convert the string to a value. If no valid value is found, raise\n\
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diff changeset
1272 EOFError, ValueError or TypeError. Extra characters in the string are\n\
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diff changeset
1273 ignored.");
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diff changeset
1274
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1275 static PyMethodDef marshal_methods[] = {
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diff changeset
1276 {"dump", marshal_dump, METH_VARARGS, dump_doc},
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diff changeset
1277 {"load", marshal_load, METH_O, load_doc},
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diff changeset
1278 {"dumps", marshal_dumps, METH_VARARGS, dumps_doc},
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diff changeset
1279 {"loads", marshal_loads, METH_VARARGS, loads_doc},
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1280 {NULL, NULL} /* sentinel */
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1281 };
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1282
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1283 PyDoc_STRVAR(marshal_doc,
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diff changeset
1284 "This module contains functions that can read and write Python values in\n\
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diff changeset
1285 a binary format. The format is specific to Python, but independent of\n\
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diff changeset
1286 machine architecture issues.\n\
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diff changeset
1287 \n\
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diff changeset
1288 Not all Python object types are supported; in general, only objects\n\
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diff changeset
1289 whose value is independent from a particular invocation of Python can be\n\
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diff changeset
1290 written and read by this module. The following types are supported:\n\
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diff changeset
1291 None, integers, long integers, floating point numbers, strings, Unicode\n\
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diff changeset
1292 objects, tuples, lists, sets, dictionaries, and code objects, where it\n\
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diff changeset
1293 should be understood that tuples, lists and dictionaries are only\n\
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1294 supported as long as the values contained therein are themselves\n\
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1295 supported; and recursive lists and dictionaries should not be written\n\
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diff changeset
1296 (they will cause infinite loops).\n\
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diff changeset
1297 \n\
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diff changeset
1298 Variables:\n\
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diff changeset
1299 \n\
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1300 version -- indicates the format that the module uses. Version 0 is the\n\
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diff changeset
1301 historical format, version 1 (added in Python 2.4) shares interned\n\
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diff changeset
1302 strings and version 2 (added in Python 2.5) uses a binary format for\n\
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diff changeset
1303 floating point numbers. (New in version 2.4)\n\
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diff changeset
1304 \n\
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1305 Functions:\n\
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diff changeset
1306 \n\
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diff changeset
1307 dump() -- write value to a file\n\
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diff changeset
1308 load() -- read value from a file\n\
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diff changeset
1309 dumps() -- write value to a string\n\
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diff changeset
1310 loads() -- read value from a string");
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diff changeset
1311
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diff changeset
1312
30311
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1313 PyMODINIT_FUNC
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1314 PyMarshal_Init(void)
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1315 {
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1316 PyObject *mod = Py_InitModule3("marshal", marshal_methods,
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1317 marshal_doc);
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1318 if (mod == NULL)
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1319 return;
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1320 PyModule_AddIntConstant(mod, "version", Py_MARSHAL_VERSION);
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1321 }