Mercurial > cpython-lru_cache-weakref

annotate Python/pythonrun.c @ 1263:65a1e4e9cd54 legacy-trunk

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* Fixed some subtleties with fastlocals. You can no longer access f_fastlocals in a traceback object (this is a core dump hazard if there are <nil> entries), but instead eval_code() merges the fast locals back into the locals dictionary if it looks like the local variables will be retained. Also, the merge routines save exceptions since this is sometimes needed (alas!). * Added id() to bltinmodule.c, which returns an object's address (identity). Useful to walk arbitrary data structures containing cycles. * Added compile() to bltinmodule.c and compile_string() to pythonrun.[ch]: support to exec/eval arbitrary code objects. The code that defaults globals and locals is moved from run_node in pythonrun.c (which is now identical to eval_node) to eval_code in ceval.c. [XXX For elegance a clean-up session is necessary.]
author Guido van Rossum <guido@python.org>
date Tue, 30 Mar 1993 17:46:03 +0000
parents f820e6917f07
children e0464e7115ca
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1 /***********************************************************
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1cabc2b6c970 * Changed all copyright messages to include 1993.
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2 Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum,
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3 Amsterdam, 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 not be used in advertising or publicity pertaining to
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13 distribution of the software without specific, written prior permission.
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14
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15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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22
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23 ******************************************************************/
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24
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25 /* Python interpreter top-level routines, including init/exit */
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26
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27 #include "allobjects.h"
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28
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29 #include "grammar.h"
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30 #include "node.h"
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31 #include "parsetok.h"
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32 #include "graminit.h"
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33 #include "errcode.h"
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34 #include "sysmodule.h"
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35 #include "compile.h"
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36 #include "eval.h"
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37 #include "ceval.h"
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38 #include "pythonrun.h"
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39 #include "import.h"
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40
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41 #ifdef unix
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42 #define HANDLE_SIGNALS
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43 #endif
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44
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45 #ifdef HANDLE_SIGNALS
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46 #include <signal.h>
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47 #include "sigtype.h"
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48 #endif
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49
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50 extern char *getpythonpath();
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51
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52 extern grammar gram; /* From graminit.c */
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53
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54 void initsigs(); /* Forward */
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55
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56 int debugging; /* Needed by parser.c */
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57 int verbose; /* Needed by import.c */
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58
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59 /* Initialize all */
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60
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61 void
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62 initall()
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63 {
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64 static int inited;
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65
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66 if (inited)
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67 return;
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68 inited = 1;
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69
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70 initimport();
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71
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72 /* Modules 'builtin' and 'sys' are initialized here,
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73 they are needed by random bits of the interpreter.
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74 All other modules are optional and are initialized
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75 when they are first imported. */
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76
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77 initbuiltin(); /* Also initializes builtin exceptions */
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78 initsys();
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79
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80 initcalls(); /* Configuration-dependent initializations */
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81
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82 setpythonpath(getpythonpath());
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83
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84 initsigs(); /* Signal handling stuff, including initintr() */
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85 }
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86
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87 /* Parse input from a file and execute it */
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88
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89 int
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90 run(fp, filename)
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91 FILE *fp;
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92 char *filename;
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93 {
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94 if (filename == NULL)
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95 filename = "???";
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96 if (isatty((int)fileno(fp)))
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97 return run_tty_loop(fp, filename);
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98 else
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99 return run_script(fp, filename);
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100 }
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101
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102 int
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103 run_tty_loop(fp, filename)
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104 FILE *fp;
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105 char *filename;
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106 {
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107 object *v;
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108 int ret;
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109 v = sysget("ps1");
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110 if (v == NULL) {
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111 sysset("ps1", v = newstringobject(">>> "));
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112 XDECREF(v);
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113 }
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114 v = sysget("ps2");
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115 if (v == NULL) {
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116 sysset("ps2", v = newstringobject("... "));
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117 XDECREF(v);
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118 }
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119 for (;;) {
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120 ret = run_tty_1(fp, filename);
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121 #ifdef REF_DEBUG
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122 fprintf(stderr, "[%ld refs]\n", ref_total);
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123 #endif
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124 if (ret == E_EOF)
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125 return 0;
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126 /*
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127 if (ret == E_NOMEM)
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128 return -1;
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129 */
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130 }
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131 }
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132
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133 int
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134 run_tty_1(fp, filename)
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135 FILE *fp;
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136 char *filename;
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137 {
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138 object *m, *d, *v, *w;
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139 node *n;
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140 char *ps1, *ps2;
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141 int err;
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142 v = sysget("ps1");
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143 w = sysget("ps2");
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144 if (v != NULL && is_stringobject(v)) {
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145 INCREF(v);
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146 ps1 = getstringvalue(v);
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147 }
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148 else {
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149 v = NULL;
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150 ps1 = "";
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151 }
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152 if (w != NULL && is_stringobject(w)) {
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153 INCREF(w);
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154 ps2 = getstringvalue(w);
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parents:
diff changeset
155 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
156 else {
72aceed365d4 * Makefile adapted to changes below.
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diff changeset
157 w = NULL;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
158 ps2 = "";
72aceed365d4 * Makefile adapted to changes below.
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diff changeset
159 }
926
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
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diff changeset
160 BGN_SAVE
923
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161 err = parsefile(fp, filename, &gram, single_input, ps1, ps2, &n);
926
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162 END_SAVE
923
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diff changeset
163 XDECREF(v);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
164 XDECREF(w);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
165 if (err == E_EOF)
72aceed365d4 * Makefile adapted to changes below.
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166 return E_EOF;
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Guido van Rossum <guido@python.org>
parents:
diff changeset
167 if (err != E_DONE) {
72aceed365d4 * Makefile adapted to changes below.
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168 err_input(err);
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169 print_error();
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170 return err;
72aceed365d4 * Makefile adapted to changes below.
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parents:
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171 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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172 m = add_module("__main__");
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Guido van Rossum <guido@python.org>
parents:
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173 if (m == NULL)
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Guido van Rossum <guido@python.org>
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174 return -1;
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Guido van Rossum <guido@python.org>
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175 d = getmoduledict(m);
72aceed365d4 * Makefile adapted to changes below.
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176 v = run_node(n, filename, d, d);
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177 flushline();
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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178 if (v == NULL) {
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179 print_error();
72aceed365d4 * Makefile adapted to changes below.
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180 return -1;
72aceed365d4 * Makefile adapted to changes below.
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parents:
diff changeset
181 }
72aceed365d4 * Makefile adapted to changes below.
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182 DECREF(v);
72aceed365d4 * Makefile adapted to changes below.
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parents:
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183 return 0;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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184 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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185
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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186 int
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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187 run_script(fp, filename)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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188 FILE *fp;
72aceed365d4 * Makefile adapted to changes below.
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189 char *filename;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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190 {
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191 object *m, *d, *v;
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192 m = add_module("__main__");
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193 if (m == NULL)
72aceed365d4 * Makefile adapted to changes below.
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194 return -1;
72aceed365d4 * Makefile adapted to changes below.
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195 d = getmoduledict(m);
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196 v = run_file(fp, filename, file_input, d, d);
72aceed365d4 * Makefile adapted to changes below.
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197 flushline();
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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198 if (v == NULL) {
72aceed365d4 * Makefile adapted to changes below.
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199 print_error();
72aceed365d4 * Makefile adapted to changes below.
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200 return -1;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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201 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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202 DECREF(v);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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203 return 0;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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204 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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205
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
206 int
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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207 run_command(command)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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208 char *command;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
209 {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
210 object *m, *d, *v;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
211 m = add_module("__main__");
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
212 if (m == NULL)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
213 return -1;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
214 d = getmoduledict(m);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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215 v = run_string(command, file_input, d, d);
72aceed365d4 * Makefile adapted to changes below.
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216 flushline();
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
217 if (v == NULL) {
72aceed365d4 * Makefile adapted to changes below.
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diff changeset
218 print_error();
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
219 return -1;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
220 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
221 DECREF(v);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
222 return 0;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
223 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
224
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
225 void
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
226 print_error()
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
227 {
1073
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
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diff changeset
228 object *exception, *v, *f;
923
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229 err_get(&exception, &v);
72aceed365d4 * Makefile adapted to changes below.
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diff changeset
230 if (exception == SystemExit) {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
231 if (v == NULL || v == None)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
232 goaway(0);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
233 if (is_intobject(v))
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
234 goaway((int)getintvalue(v));
72aceed365d4 * Makefile adapted to changes below.
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235 else {
1073
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
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236 /* OK to use real stderr here */
923
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diff changeset
237 printobject(v, stderr, PRINT_RAW);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
238 fprintf(stderr, "\n");
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
239 goaway(1);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
240 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
241 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
242 sysset("last_type", exception);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
243 sysset("last_value", v);
1073
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
244 f = sysget("stderr");
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
245 if (f == NULL)
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
246 fprintf(stderr, "lost sys.stderr\n");
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
247 else {
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
248 if (writeobject(exception, f, PRINT_RAW) != 0)
923
72aceed365d4 * Makefile adapted to changes below.
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diff changeset
249 err_clear();
1073
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
250 if (v != NULL && v != None) {
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
251 writestring(": ", f);
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
252 if (writeobject(v, f, PRINT_RAW) != 0)
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
253 err_clear();
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
254 }
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
Guido van Rossum <guido@python.org>
parents: 1015
diff changeset
255 writestring("\n", f);
2c0432fcc270 Modified most (but not yet all) I/O to always go through sys.stdout or
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diff changeset
256 printtraceback(f);
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
257 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
258 XDECREF(exception);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
259 XDECREF(v);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
260 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
261
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
262 object *
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
263 run_string(str, start, globals, locals)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
264 char *str;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
265 int start;
1263
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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diff changeset
266 object *globals, *locals;
923
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Guido van Rossum <guido@python.org>
parents:
diff changeset
267 {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
268 node *n;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
269 int err;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
270 err = parse_string(str, start, &n);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
271 return run_err_node(err, n, "<string>", globals, locals);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
272 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
273
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
274 object *
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
275 run_file(fp, filename, start, globals, locals)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
276 FILE *fp;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
277 char *filename;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
278 int start;
1263
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
279 object *globals, *locals;
923
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Guido van Rossum <guido@python.org>
parents:
diff changeset
280 {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
281 node *n;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
282 int err;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
283 err = parse_file(fp, filename, start, &n);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
284 return run_err_node(err, n, filename, globals, locals);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
285 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
286
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
287 object *
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
288 run_err_node(err, n, filename, globals, locals)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
289 int err;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
290 node *n;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
291 char *filename;
1263
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
292 object *globals, *locals;
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
293 {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
294 if (err != E_DONE) {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
295 err_input(err);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
296 return NULL;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
297 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
298 return run_node(n, filename, globals, locals);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
299 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
300
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
301 object *
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
302 run_node(n, filename, globals, locals)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
303 node *n;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
304 char *filename;
1263
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
305 object *globals, *locals;
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
306 {
1263
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
307 return eval_node(n, filename, globals, locals);
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
308 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
309
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
310 object *
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
311 eval_node(n, filename, globals, locals)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
312 node *n;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
313 char *filename;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
314 object *globals;
72aceed365d4 * Makefile adapted to changes below.
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diff changeset
315 object *locals;
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parents:
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316 {
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Guido van Rossum <guido@python.org>
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diff changeset
317 codeobject *co;
72aceed365d4 * Makefile adapted to changes below.
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parents:
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318 object *v;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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319 co = compile(n, filename);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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320 freetree(n);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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321 if (co == NULL)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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322 return NULL;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
323 v = eval_code(co, globals, locals, (object *)NULL);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
324 DECREF(co);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
325 return v;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
326 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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327
1263
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Guido van Rossum <guido@python.org>
parents: 1262
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328 object *
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
329 compile_string(str, filename, start)
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
330 char *str;
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
331 char *filename;
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
332 int start;
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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333 {
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
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334 node *n;
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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335 int err;
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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336 codeobject *co;
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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337 err = parse_string(str, start, &n);
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
338 if (err != E_DONE) {
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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diff changeset
339 err_input(err);
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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diff changeset
340 return NULL;
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
341 }
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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diff changeset
342 co = compile(n, filename);
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
parents: 1262
diff changeset
343 freetree(n);
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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diff changeset
344 return (object *)co;
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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345 }
65a1e4e9cd54 * Fixed some subtleties with fastlocals. You can no longer access
Guido van Rossum <guido@python.org>
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346
923
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347 /* Simplified interface to parsefile */
72aceed365d4 * Makefile adapted to changes below.
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348
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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349 int
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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350 parse_file(fp, filename, start, n_ret)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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351 FILE *fp;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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352 char *filename;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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353 int start;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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354 node **n_ret;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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355 {
926
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356 int ret;
c156d4960c2b * Makefile: cosmetics
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357 BGN_SAVE
c156d4960c2b * Makefile: cosmetics
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358 ret = parsefile(fp, filename, &gram, start,
923
72aceed365d4 * Makefile adapted to changes below.
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359 (char *)0, (char *)0, n_ret);
926
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
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360 END_SAVE
c156d4960c2b * Makefile: cosmetics
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361 return ret;
923
72aceed365d4 * Makefile adapted to changes below.
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362 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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363
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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364 /* Simplified interface to parsestring */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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365
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
366 int
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
367 parse_string(str, start, n_ret)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
368 char *str;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
369 int start;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
370 node **n_ret;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
371 {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
372 int err = parsestring(str, &gram, start, n_ret);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
373 /* Don't confuse early end of string with early end of input */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
374 if (err == E_EOF)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
375 err = E_SYNTAX;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
376 return err;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
377 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
378
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
379 /* Print fatal error message and abort */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
380
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
381 void
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
382 fatal(msg)
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
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383 char *msg;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
384 {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
385 fprintf(stderr, "Fatal error: %s\n", msg);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
386 abort();
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
387 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
388
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
389 /* Clean up and exit */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
390
961
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway()
Guido van Rossum <guido@python.org>
parents: 941
diff changeset
391 #ifdef USE_THREAD
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway()
Guido van Rossum <guido@python.org>
parents: 941
diff changeset
392 extern int threads_started;
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway()
Guido van Rossum <guido@python.org>
parents: 941
diff changeset
393 #endif
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway()
Guido van Rossum <guido@python.org>
parents: 941
diff changeset
394
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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395 void
1079
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
396 cleanup()
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
397 {
1015
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
398 object *exitfunc = sysget("exitfunc");
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
399
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
400 if (exitfunc) {
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
401 object *arg;
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
402 object *res;
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
403 sysset("exitfunc", (object *)NULL);
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
404 arg = newtupleobject(0);
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
405 if (arg == NULL)
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
406 res = NULL;
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
407 else {
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
408 res = call_object(exitfunc, arg);
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
409 DECREF(arg);
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
410 }
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
411 if (res == NULL) {
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
412 fprintf(stderr, "Error in sys.exitfunc:\n");
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
413 print_error();
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
414 }
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
415 }
f3d5e2c3b9a3 Add sys.exitfunc feature. Make askync non-static.
Guido van Rossum <guido@python.org>
parents: 961
diff changeset
416
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
417 flushline();
1079
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
418 }
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
419
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
420 void
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
421 goaway(sts)
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
422 int sts;
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
423 {
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
424 cleanup();
926
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Guido van Rossum <guido@python.org>
parents: 923
diff changeset
425
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
426 #ifdef USE_THREAD
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
427
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
428 /* Other threads may still be active, so skip most of the
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
429 cleanup actions usually done (these are mostly for
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
430 debugging anyway). */
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
431
941
cd40e3eebb49 To ignore a call, cast it to (void), not to (void *)...
Guido van Rossum <guido@python.org>
parents: 926
diff changeset
432 (void) save_thread();
926
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
433 donecalls();
961
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway()
Guido van Rossum <guido@python.org>
parents: 941
diff changeset
434 if (threads_started)
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway()
Guido van Rossum <guido@python.org>
parents: 941
diff changeset
435 _exit_prog(sts);
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway()
Guido van Rossum <guido@python.org>
parents: 941
diff changeset
436 else
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway()
Guido van Rossum <guido@python.org>
parents: 941
diff changeset
437 exit_prog(sts);
926
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
438
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
439 #else /* USE_THREAD */
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
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diff changeset
440
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
441 /* XXX Call doneimport() before donecalls(), since donecalls()
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
442 calls wdone(), and doneimport() may close windows */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
443 doneimport();
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
444 donecalls();
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
445
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
446 err_clear();
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
447
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
448 #ifdef REF_DEBUG
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
449 fprintf(stderr, "[%ld refs]\n", ref_total);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
450 #endif
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
451
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
452 #ifdef TRACE_REFS
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
453 if (askyesno("Print left references?")) {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
454 printrefs(stderr);
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
455 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
456 #endif /* TRACE_REFS */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
457
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
458 exit(sts);
926
c156d4960c2b * Makefile: cosmetics
Guido van Rossum <guido@python.org>
parents: 923
diff changeset
459 #endif /* USE_THREAD */
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
460 /*NOTREACHED*/
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
461 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
462
1079
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
463 #ifdef HANDLE_SIGNALS
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
464 SIGTYPE
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b)
Guido van Rossum <guido@python.org>
parents: 1073
diff changeset
465 sighandler(sig)
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466 int sig;
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467 {
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468 signal(sig, SIG_DFL); /* Don't catch recursive signals */
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469 cleanup(); /* Do essential clean-up */
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470 kill(getpid(), sig); /* Pretend the signal killed us */
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471 /*NOTREACHED*/
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472 }
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473 #endif
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474
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475 void
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476 initsigs()
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477 {
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478 initintr();
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479 #ifdef HANDLE_SIGNALS
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480 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
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481 signal(SIGHUP, sighandler);
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482 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
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483 signal(SIGTERM, sighandler);
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484 #endif
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485 }
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486
923
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487 #ifdef TRACE_REFS
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488 /* Ask a yes/no question */
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489
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490 int
923
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491 askyesno(prompt)
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492 char *prompt;
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493 {
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494 char buf[256];
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495
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496 printf("%s [ny] ", prompt);
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497 if (fgets(buf, sizeof buf, stdin) == NULL)
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498 return 0;
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499 return buf[0] == 'y' || buf[0] == 'Y';
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500 }
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501 #endif
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502
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503 #ifdef applec /* MPW (also usable for Think C 3.0) */
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504
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505 /* Check for file descriptor connected to interactive device.
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506 Pretend that stdin is always interactive, other files never. */
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507
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508 int
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509 isatty(fd)
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510 int fd;
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511 {
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512 return fd == fileno(stdin);
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513 }
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514
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515 #endif