Mercurial > cpython-lru_cache-weakref

annotate Objects/tupleobject.c @ 12713:7efbb4e6afca legacy-trunk

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macfsn should always be included, like exceptions and site.
author Jack Jansen <jack.jansen@cwi.nl>
date Wed, 17 May 2000 13:27:09 +0000
parents 1c7c2dd1beb1
children 4272b368bf69
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1 /***********************************************************
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2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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3 The Netherlands.
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4
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5 All Rights Reserved
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6
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7 Permission to use, copy, modify, and distribute this software and its
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8 documentation for any purpose and without fee is hereby granted,
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9 provided that the above copyright notice appear in all copies and that
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10 both that copyright notice and this permission notice appear in
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11 supporting documentation, and that the names of Stichting Mathematisch
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12 Centrum or CWI or Corporation for National Research Initiatives or
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13 CNRI not be used in advertising or publicity pertaining to
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14 distribution of the software without specific, written prior
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15 permission.
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16
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17 While CWI is the initial source for this software, a modified version
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18 is made available by the Corporation for National Research Initiatives
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19 (CNRI) at the Internet address ftp://ftp.python.org.
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20
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21 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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22 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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23 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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24 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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25 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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26 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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27 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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28 PERFORMANCE OF THIS SOFTWARE.
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29
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30 ******************************************************************/
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31
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32 /* Tuple object implementation */
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33
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34 #include "Python.h"
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35
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36 /* Speed optimization to avoid frequent malloc/free of small tuples */
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37 #ifndef MAXSAVESIZE
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38 #define MAXSAVESIZE 20 /* Largest tuple to save on free list */
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39 #endif
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40 #ifndef MAXSAVEDTUPLES
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41 #define MAXSAVEDTUPLES 2000 /* Maximum number of tuples of each size to save */
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42 #endif
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43
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44 #if MAXSAVESIZE > 0
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45 /* Entries 1 up to MAXSAVESIZE are free lists, entry 0 is the empty
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46 tuple () of which at most one instance will be allocated.
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47 */
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48 static PyTupleObject *free_tuples[MAXSAVESIZE];
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49 static int num_free_tuples[MAXSAVESIZE];
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50 #endif
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51 #ifdef COUNT_ALLOCS
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52 int fast_tuple_allocs;
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53 int tuple_zero_allocs;
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54 #endif
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55
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56 PyObject *
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57 PyTuple_New(size)
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58 register int size;
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59 {
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60 register int i;
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61 register PyTupleObject *op;
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62 if (size < 0) {
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63 PyErr_BadInternalCall();
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64 return NULL;
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65 }
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66 #if MAXSAVESIZE > 0
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67 if (size == 0 && free_tuples[0]) {
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68 op = free_tuples[0];
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69 Py_INCREF(op);
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70 #ifdef COUNT_ALLOCS
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71 tuple_zero_allocs++;
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72 #endif
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73 return (PyObject *) op;
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74 }
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75 if (0 < size && size < MAXSAVESIZE &&
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76 (op = free_tuples[size]) != NULL)
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77 {
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78 free_tuples[size] = (PyTupleObject *) op->ob_item[0];
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79 num_free_tuples[size]--;
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80 #ifdef COUNT_ALLOCS
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81 fast_tuple_allocs++;
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82 #endif
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83 /* PyObject_InitVar is inlined */
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84 #ifdef Py_TRACE_REFS
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85 op->ob_size = size;
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86 op->ob_type = &PyTuple_Type;
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87 #endif
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88 _Py_NewReference((PyObject *)op);
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89 }
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90 else
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91 #endif
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92 {
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93 int nbytes = size * sizeof(PyObject *);
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94 /* Check for overflow */
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95 if (nbytes / sizeof(PyObject *) != (size_t)size ||
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96 (nbytes += sizeof(PyTupleObject) - sizeof(PyObject *))
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97 <= 0)
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98 {
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99 return PyErr_NoMemory();
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100 }
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101 /* PyObject_NewVar is inlined */
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102 op = (PyTupleObject *) PyObject_MALLOC(nbytes);
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103 if (op == NULL)
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104 return PyErr_NoMemory();
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105
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106 PyObject_INIT_VAR(op, &PyTuple_Type, size);
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107 }
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108 for (i = 0; i < size; i++)
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109 op->ob_item[i] = NULL;
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110 #if MAXSAVESIZE > 0
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111 if (size == 0) {
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112 free_tuples[0] = op;
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113 ++num_free_tuples[0];
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114 Py_INCREF(op); /* extra INCREF so that this is never freed */
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115 }
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116 #endif
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117 return (PyObject *) op;
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118 }
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119
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120 int
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121 PyTuple_Size(op)
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122 register PyObject *op;
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123 {
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124 if (!PyTuple_Check(op)) {
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125 PyErr_BadInternalCall();
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126 return -1;
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127 }
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128 else
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129 return ((PyTupleObject *)op)->ob_size;
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130 }
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131
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132 PyObject *
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133 PyTuple_GetItem(op, i)
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134 register PyObject *op;
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135 register int i;
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136 {
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137 if (!PyTuple_Check(op)) {
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138 PyErr_BadInternalCall();
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139 return NULL;
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140 }
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141 if (i < 0 || i >= ((PyTupleObject *)op) -> ob_size) {
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142 PyErr_SetString(PyExc_IndexError, "tuple index out of range");
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143 return NULL;
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144 }
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145 return ((PyTupleObject *)op) -> ob_item[i];
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146 }
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147
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148 int
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149 PyTuple_SetItem(op, i, newitem)
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150 register PyObject *op;
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151 register int i;
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152 PyObject *newitem;
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153 {
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154 register PyObject *olditem;
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155 register PyObject **p;
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156 if (!PyTuple_Check(op) || op->ob_refcnt != 1) {
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157 Py_XDECREF(newitem);
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158 PyErr_BadInternalCall();
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159 return -1;
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160 }
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161 if (i < 0 || i >= ((PyTupleObject *)op) -> ob_size) {
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162 Py_XDECREF(newitem);
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163 PyErr_SetString(PyExc_IndexError,
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164 "tuple assignment index out of range");
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165 return -1;
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166 }
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167 p = ((PyTupleObject *)op) -> ob_item + i;
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168 olditem = *p;
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169 *p = newitem;
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170 Py_XDECREF(olditem);
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171 return 0;
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172 }
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173
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174 /* Methods */
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175
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176 static void
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177 tupledealloc(op)
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178 register PyTupleObject *op;
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179 {
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180 register int i;
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181 register int len = op->ob_size;
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182 Py_TRASHCAN_SAFE_BEGIN(op)
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183 if (len > 0) {
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184 i = len;
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185 while (--i >= 0)
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186 Py_XDECREF(op->ob_item[i]);
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187 #if MAXSAVESIZE > 0
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188 if (len < MAXSAVESIZE && num_free_tuples[len] < MAXSAVEDTUPLES) {
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189 op->ob_item[0] = (PyObject *) free_tuples[len];
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190 num_free_tuples[len]++;
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191 free_tuples[len] = op;
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192 goto done; /* return */
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193 }
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194 #endif
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195 }
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196 PyObject_DEL(op);
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197 done:
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198 Py_TRASHCAN_SAFE_END(op)
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199 }
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200
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201 static int
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202 tupleprint(op, fp, flags)
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203 PyTupleObject *op;
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204 FILE *fp;
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205 int flags;
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206 {
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207 int i;
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208 fprintf(fp, "(");
288
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209 for (i = 0; i < op->ob_size; i++) {
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210 if (i > 0)
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211 fprintf(fp, ", ");
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212 if (PyObject_Print(op->ob_item[i], fp, 0) != 0)
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213 return -1;
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214 }
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215 if (op->ob_size == 1)
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216 fprintf(fp, ",");
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217 fprintf(fp, ")");
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218 return 0;
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219 }
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220
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221 static PyObject *
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222 tuplerepr(v)
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223 PyTupleObject *v;
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224 {
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225 PyObject *s, *comma;
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226 int i;
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227 s = PyString_FromString("(");
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228 comma = PyString_FromString(", ");
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229 for (i = 0; i < v->ob_size && s != NULL; i++) {
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230 if (i > 0)
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231 PyString_Concat(&s, comma);
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232 PyString_ConcatAndDel(&s, PyObject_Repr(v->ob_item[i]));
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233 }
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234 Py_DECREF(comma);
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235 if (v->ob_size == 1)
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236 PyString_ConcatAndDel(&s, PyString_FromString(","));
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237 PyString_ConcatAndDel(&s, PyString_FromString(")"));
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238 return s;
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239 }
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240
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241 static int
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242 tuplecompare(v, w)
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243 register PyTupleObject *v, *w;
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244 {
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245 register int len =
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246 (v->ob_size < w->ob_size) ? v->ob_size : w->ob_size;
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247 register int i;
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248 for (i = 0; i < len; i++) {
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249 int cmp = PyObject_Compare(v->ob_item[i], w->ob_item[i]);
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250 if (cmp != 0)
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251 return cmp;
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252 }
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253 return v->ob_size - w->ob_size;
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254 }
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255
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256 static long
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257 tuplehash(v)
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258 PyTupleObject *v;
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259 {
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260 register long x, y;
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261 register int len = v->ob_size;
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262 register PyObject **p;
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263 x = 0x345678L;
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264 p = v->ob_item;
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265 while (--len >= 0) {
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266 y = PyObject_Hash(*p++);
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267 if (y == -1)
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268 return -1;
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269 x = (1000003*x) ^ y;
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270 }
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271 x ^= v->ob_size;
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272 if (x == -1)
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273 x = -2;
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274 return x;
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275 }
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276
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277 static int
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278 tuplelength(a)
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279 PyTupleObject *a;
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280 {
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281 return a->ob_size;
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282 }
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283
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284 static int
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285 tuplecontains(a, el)
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286 PyTupleObject *a;
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287 PyObject *el;
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288 {
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289 int i, cmp;
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290
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291 for (i = 0; i < a->ob_size; ++i) {
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292 cmp = PyObject_Compare(el, PyTuple_GET_ITEM(a, i));
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293 if (cmp == 0)
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294 return 1;
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295 if (PyErr_Occurred())
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296 return -1;
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297 }
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298 return 0;
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299 }
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300
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301 static PyObject *
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302 tupleitem(a, i)
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303 register PyTupleObject *a;
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304 register int i;
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305 {
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306 if (i < 0 || i >= a->ob_size) {
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307 PyErr_SetString(PyExc_IndexError, "tuple index out of range");
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308 return NULL;
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309 }
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310 Py_INCREF(a->ob_item[i]);
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311 return a->ob_item[i];
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312 }
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313
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314 static PyObject *
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315 tupleslice(a, ilow, ihigh)
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316 register PyTupleObject *a;
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317 register int ilow, ihigh;
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318 {
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319 register PyTupleObject *np;
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320 register int i;
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321 if (ilow < 0)
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322 ilow = 0;
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323 if (ihigh > a->ob_size)
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324 ihigh = a->ob_size;
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325 if (ihigh < ilow)
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326 ihigh = ilow;
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327 if (ilow == 0 && ihigh == a->ob_size) {
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328 /* XXX can only do this if tuples are immutable! */
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329 Py_INCREF(a);
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330 return (PyObject *)a;
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331 }
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332 np = (PyTupleObject *)PyTuple_New(ihigh - ilow);
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333 if (np == NULL)
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334 return NULL;
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335 for (i = ilow; i < ihigh; i++) {
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336 PyObject *v = a->ob_item[i];
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337 Py_INCREF(v);
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338 np->ob_item[i - ilow] = v;
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339 }
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340 return (PyObject *)np;
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341 }
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342
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343 PyObject *
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344 PyTuple_GetSlice(op, i, j)
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345 PyObject *op;
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346 int i, j;
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347 {
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348 if (op == NULL || !PyTuple_Check(op)) {
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349 PyErr_BadInternalCall();
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350 return NULL;
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351 }
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352 return tupleslice((PyTupleObject *)op, i, j);
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353 }
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354
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355 static PyObject *
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356 tupleconcat(a, bb)
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357 register PyTupleObject *a;
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358 register PyObject *bb;
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359 {
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360 register int size;
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361 register int i;
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362 PyTupleObject *np;
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363 if (!PyTuple_Check(bb)) {
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364 PyErr_BadArgument();
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365 return NULL;
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366 }
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367 #define b ((PyTupleObject *)bb)
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368 size = a->ob_size + b->ob_size;
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369 np = (PyTupleObject *) PyTuple_New(size);
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370 if (np == NULL) {
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371 return NULL;
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372 }
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373 for (i = 0; i < a->ob_size; i++) {
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374 PyObject *v = a->ob_item[i];
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375 Py_INCREF(v);
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376 np->ob_item[i] = v;
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377 }
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378 for (i = 0; i < b->ob_size; i++) {
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379 PyObject *v = b->ob_item[i];
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380 Py_INCREF(v);
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381 np->ob_item[i + a->ob_size] = v;
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382 }
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383 return (PyObject *)np;
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384 #undef b
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385 }
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386
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387 static PyObject *
258
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388 tuplerepeat(a, n)
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389 PyTupleObject *a;
258
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390 int n;
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391 {
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392 int i, j;
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393 int size;
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394 PyTupleObject *np;
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395 PyObject **p;
258
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396 if (n < 0)
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397 n = 0;
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398 if (a->ob_size == 0 || n == 1) {
258
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399 /* Since tuples are immutable, we can return a shared
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400 copy in this case */
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401 Py_INCREF(a);
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402 return (PyObject *)a;
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403 }
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404 size = a->ob_size * n;
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405 if (size/a->ob_size != n)
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406 return PyErr_NoMemory();
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407 np = (PyTupleObject *) PyTuple_New(size);
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408 if (np == NULL)
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409 return NULL;
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410 p = np->ob_item;
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411 for (i = 0; i < n; i++) {
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412 for (j = 0; j < a->ob_size; j++) {
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413 *p = a->ob_item[j];
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414 Py_INCREF(*p);
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415 p++;
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416 }
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417 }
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418 return (PyObject *) np;
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419 }
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420
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421 static PySequenceMethods tuple_as_sequence = {
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422 (inquiry)tuplelength, /*sq_length*/
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423 (binaryfunc)tupleconcat, /*sq_concat*/
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424 (intargfunc)tuplerepeat, /*sq_repeat*/
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425 (intargfunc)tupleitem, /*sq_item*/
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426 (intintargfunc)tupleslice, /*sq_slice*/
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427 0, /*sq_ass_item*/
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428 0, /*sq_ass_slice*/
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429 (objobjproc)tuplecontains, /*sq_contains*/
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430 };
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431
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432 PyTypeObject PyTuple_Type = {
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433 PyObject_HEAD_INIT(&PyType_Type)
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434 0,
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435 "tuple",
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436 sizeof(PyTupleObject) - sizeof(PyObject *),
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437 sizeof(PyObject *),
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438 (destructor)tupledealloc, /*tp_dealloc*/
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439 (printfunc)tupleprint, /*tp_print*/
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440 0, /*tp_getattr*/
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441 0, /*tp_setattr*/
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442 (cmpfunc)tuplecompare, /*tp_compare*/
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443 (reprfunc)tuplerepr, /*tp_repr*/
6
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Guido van Rossum <guido@python.org>
parents:
diff changeset
444 0, /*tp_as_number*/
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
445 &tuple_as_sequence, /*tp_as_sequence*/
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
446 0, /*tp_as_mapping*/
1848
b724599401ff Merge back to main trunk
Guido van Rossum <guido@python.org>
parents: 1405
diff changeset
447 (hashfunc)tuplehash, /*tp_hash*/
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
448 };
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
449
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
450 /* The following function breaks the notion that tuples are immutable:
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
451 it changes the size of a tuple. We get away with this only if there
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
452 is only one module referencing the object. You can also think of it
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
453 as creating a new tuple object and destroying the old one, only
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
454 more efficiently. In any case, don't use this if the tuple may
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
455 already be known to some other part of the code...
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
456 If last_is_sticky is set, the tuple will grow or shrink at the
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
457 front, otherwise it will grow or shrink at the end. */
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
458
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
459 int
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
460 _PyTuple_Resize(pv, newsize, last_is_sticky)
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
461 PyObject **pv;
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
462 int newsize;
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
463 int last_is_sticky;
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
464 {
5396
d1447950fa04 Quickly renamed the last directory.
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parents: 4733
diff changeset
465 register PyTupleObject *v;
d1447950fa04 Quickly renamed the last directory.
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parents: 4733
diff changeset
466 register PyTupleObject *sv;
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
467 int i;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
468 int sizediff;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
469
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
470 v = (PyTupleObject *) *pv;
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
471 if (v == NULL || !PyTuple_Check(v) || v->ob_refcnt != 1) {
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
472 *pv = 0;
5396
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parents: 4733
diff changeset
473 Py_DECREF(v);
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
474 PyErr_BadInternalCall();
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
475 return -1;
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
476 }
2888
6abd14485884 better err checks in resizetuple
Guido van Rossum <guido@python.org>
parents: 2612
diff changeset
477 sizediff = newsize - v->ob_size;
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
478 if (sizediff == 0)
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
479 return 0;
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
480 /* XXX UNREF/NEWREF interface should be more symmetrical */
3586
36cc3ee54f28 new debugger symbol names
Guido van Rossum <guido@python.org>
parents: 2888
diff changeset
481 #ifdef Py_REF_DEBUG
2612
ca6b60d4ea90 fix dusty debugging macros
Guido van Rossum <guido@python.org>
parents: 2504
diff changeset
482 --_Py_RefTotal;
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
483 #endif
11673
5e6e9e893acd The rest of the changes by Trent Mick and Dale Nagata for warning-free
Guido van Rossum <guido@python.org>
parents: 11128
diff changeset
484 _Py_ForgetReference((PyObject *)v);
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
485 if (last_is_sticky && sizediff < 0) {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
486 /* shrinking:
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
487 move entries to the front and zero moved entries */
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
488 for (i = 0; i < newsize; i++) {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
489 Py_XDECREF(v->ob_item[i]);
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
490 v->ob_item[i] = v->ob_item[i - sizediff];
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
491 v->ob_item[i - sizediff] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
492 }
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
493 }
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
494 for (i = newsize; i < v->ob_size; i++) {
5396
d1447950fa04 Quickly renamed the last directory.
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parents: 4733
diff changeset
495 Py_XDECREF(v->ob_item[i]);
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
496 v->ob_item[i] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
497 }
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
498 #if MAXSAVESIZE > 0
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
499 if (newsize == 0 && free_tuples[0]) {
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
500 num_free_tuples[0]--;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
501 sv = free_tuples[0];
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
502 sv->ob_size = 0;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
503 Py_INCREF(sv);
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
504 #ifdef COUNT_ALLOCS
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
505 tuple_zero_allocs++;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
506 #endif
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
507 tupledealloc(v);
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
508 *pv = (PyObject*) sv;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
509 return 0;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
510 }
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
511 if (0 < newsize && newsize < MAXSAVESIZE &&
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
512 (sv = free_tuples[newsize]) != NULL)
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
513 {
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
514 free_tuples[newsize] = (PyTupleObject *) sv->ob_item[0];
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
515 num_free_tuples[newsize]--;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
516 #ifdef COUNT_ALLOCS
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
517 fast_tuple_allocs++;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
518 #endif
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
519 #ifdef Py_TRACE_REFS
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
520 sv->ob_type = &PyTuple_Type;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
521 #endif
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
522 for (i = 0; i < newsize; ++i){
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
523 sv->ob_item[i] = v->ob_item[i];
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
524 v->ob_item[i] = NULL;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
525 }
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
526 sv->ob_size = v->ob_size;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
527 tupledealloc(v);
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
528 *pv = (PyObject *) sv;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
529 } else
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
530 #endif
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
531 {
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
532 sv = (PyTupleObject *)
12576
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 12516
diff changeset
533 PyObject_REALLOC((char *)v,
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
534 sizeof(PyTupleObject) + newsize * sizeof(PyObject *));
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
535 *pv = (PyObject *) sv;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
536 if (sv == NULL) {
12576
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 12516
diff changeset
537 PyObject_DEL(v);
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
538 PyErr_NoMemory();
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
539 return -1;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
540 }
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
541 }
11673
5e6e9e893acd The rest of the changes by Trent Mick and Dale Nagata for warning-free
Guido van Rossum <guido@python.org>
parents: 11128
diff changeset
542 _Py_NewReference((PyObject *)sv);
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
543 for (i = sv->ob_size; i < newsize; i++)
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
544 sv->ob_item[i] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
545 if (last_is_sticky && sizediff > 0) {
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
546 /* growing: move entries to the end and zero moved entries */
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
547 for (i = newsize - 1; i >= sizediff; i--) {
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
548 sv->ob_item[i] = sv->ob_item[i - sizediff];
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
549 sv->ob_item[i - sizediff] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
550 }
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
551 }
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
552 sv->ob_size = newsize;
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
553 return 0;
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
554 }
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
555
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
556 void
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
557 PyTuple_Fini()
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
558 {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
559 #if MAXSAVESIZE > 0
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
560 int i;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
561
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
562 Py_XDECREF(free_tuples[0]);
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
563 free_tuples[0] = NULL;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
564
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
565 for (i = 1; i < MAXSAVESIZE; i++) {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
566 PyTupleObject *p, *q;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
567 p = free_tuples[i];
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
568 free_tuples[i] = NULL;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
569 while (p) {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
570 q = p;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
571 p = (PyTupleObject *)(p->ob_item[0]);
12576
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 12516
diff changeset
572 PyObject_DEL(q);
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
573 }
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
574 }
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
575 #endif
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
576 }