Mercurial > cpython-lru_cache-weakref

annotate Python/frozenmain.c @ 76451:ea46ebba8a0f

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Issue #13959: Re-implement imp.source_from_cache() in Lib/imp.py.
author Brett Cannon <brett@python.org>
date Sat, 21 Apr 2012 18:52:52 -0400
parents cab14be0ada1
children ab8121466785
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1
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2 /* Python interpreter main program for frozen scripts */
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3
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4 #include "Python.h"
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5 #include <locale.h>
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6
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7 #ifdef MS_WINDOWS
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8 extern void PyWinFreeze_ExeInit(void);
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9 extern void PyWinFreeze_ExeTerm(void);
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10 extern int PyInitFrozenExtensions(void);
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11 #endif
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12
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13 /* Main program */
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14
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15 int
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16 Py_FrozenMain(int argc, char **argv)
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17 {
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18 char *p;
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19 int i, n, sts;
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20 int inspect = 0;
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21 int unbuffered = 0;
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22 char *oldloc;
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23 wchar_t **argv_copy = PyMem_Malloc(sizeof(wchar_t*)*argc);
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24 /* We need a second copies, as Python might modify the first one. */
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25 wchar_t **argv_copy2 = PyMem_Malloc(sizeof(wchar_t*)*argc);
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26
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27 Py_FrozenFlag = 1; /* Suppress errors from getpath.c */
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28
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29 if ((p = Py_GETENV("PYTHONINSPECT")) && *p != '\0')
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30 inspect = 1;
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31 if ((p = Py_GETENV("PYTHONUNBUFFERED")) && *p != '\0')
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32 unbuffered = 1;
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33
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34 if (unbuffered) {
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35 setbuf(stdin, (char *)NULL);
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36 setbuf(stdout, (char *)NULL);
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37 setbuf(stderr, (char *)NULL);
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38 }
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39
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40 if (!argv_copy) {
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41 fprintf(stderr, "out of memory\n");
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42 return 1;
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43 }
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44
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45 oldloc = setlocale(LC_ALL, NULL);
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46 setlocale(LC_ALL, "");
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47 for (i = 0; i < argc; i++) {
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48 #ifdef HAVE_BROKEN_MBSTOWCS
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49 size_t argsize = strlen(argv[i]);
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50 #else
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51 size_t argsize = mbstowcs(NULL, argv[i], 0);
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52 #endif
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53 size_t count;
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54 if (argsize == (size_t)-1) {
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55 fprintf(stderr, "Could not convert argument %d to string\n", i);
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56 return 1;
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57 }
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58 argv_copy[i] = PyMem_Malloc((argsize+1)*sizeof(wchar_t));
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59 argv_copy2[i] = argv_copy[i];
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60 if (!argv_copy[i]) {
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61 fprintf(stderr, "out of memory\n");
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62 return 1;
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63 }
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64 count = mbstowcs(argv_copy[i], argv[i], argsize+1);
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65 if (count == (size_t)-1) {
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66 fprintf(stderr, "Could not convert argument %d to string\n", i);
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67 return 1;
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68 }
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69 }
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70 setlocale(LC_ALL, oldloc);
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71
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72 #ifdef MS_WINDOWS
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73 PyInitFrozenExtensions();
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74 #endif /* MS_WINDOWS */
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75 Py_SetProgramName(argv_copy[0]);
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76 Py_Initialize();
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77 #ifdef MS_WINDOWS
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78 PyWinFreeze_ExeInit();
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79 #endif
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80
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81 if (Py_VerboseFlag)
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82 fprintf(stderr, "Python %s\n%s\n",
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83 Py_GetVersion(), Py_GetCopyright());
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84
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85 PySys_SetArgv(argc, argv_copy);
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86
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87 n = PyImport_ImportFrozenModule("__main__");
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88 if (n == 0)
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89 Py_FatalError("__main__ not frozen");
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90 if (n < 0) {
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91 PyErr_Print();
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92 sts = 1;
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93 }
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94 else
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95 sts = 0;
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96
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97 if (inspect && isatty((int)fileno(stdin)))
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98 sts = PyRun_AnyFile(stdin, "<stdin>") != 0;
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99
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100 #ifdef MS_WINDOWS
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101 PyWinFreeze_ExeTerm();
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102 #endif
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103 Py_Finalize();
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104 for (i = 0; i < argc; i++) {
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105 PyMem_Free(argv_copy2[i]);
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106 }
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107 PyMem_Free(argv_copy);
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108 PyMem_Free(argv_copy2);
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109 return sts;
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110 }