Mercurial > cpython-lru_cache-weakref

annotate Python/dynload_win.c @ 14914:79cdeeeefafa legacy-trunk

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Removed the implib_dir instance variable because it is unused. Removed get_ext_libname() because it is unused. Fixed get_libraries() to append an '_d' to the python debug import library. If MSVC is used, do not add 'pythonxx.lib' to the list of libraries, because this is handled better by a pragma in config.h. This should fix bug #115595, but it needs some more testing.
author Thomas Heller <theller@ctypes.org>
date Thu, 28 Sep 2000 19:28:35 +0000
parents 6f6f965c5e2d
children 5ffa515e620e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /* Support for dynamic loading of extension modules */
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3
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4 #include <windows.h>
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5 #include <direct.h>
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6
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7 #include "Python.h"
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8 #include "importdl.h"
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9
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10 const struct filedescr _PyImport_DynLoadFiletab[] = {
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11 #ifdef _DEBUG
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12 {"_d.pyd", "rb", C_EXTENSION},
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13 {"_d.dll", "rb", C_EXTENSION},
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14 #else
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15 {".pyd", "rb", C_EXTENSION},
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16 {".dll", "rb", C_EXTENSION},
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17 #endif
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18 {0, 0}
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19 };
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20
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21
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22 dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
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23 const char *pathname, FILE *fp)
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24 {
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25 dl_funcptr p;
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26 char funcname[258];
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27
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28 sprintf(funcname, "init%.200s", shortname);
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29
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30 #ifdef MS_WIN32
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31 {
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32 HINSTANCE hDLL;
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33 char pathbuf[260];
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34 if (strchr(pathname, '\\') == NULL &&
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35 strchr(pathname, '/') == NULL)
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36 {
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37 /* Prefix bare filename with ".\" */
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38 char *p = pathbuf;
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39 *p = '\0';
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40 _getcwd(pathbuf, sizeof pathbuf);
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41 if (*p != '\0' && p[1] == ':')
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42 p += 2;
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43 sprintf(p, ".\\%-.255s", pathname);
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44 pathname = pathbuf;
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45 }
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46 /* Look for dependent DLLs in directory of pathname first */
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47 /* XXX This call doesn't exist in Windows CE */
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48 hDLL = LoadLibraryEx(pathname, NULL,
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49 LOAD_WITH_ALTERED_SEARCH_PATH);
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50 if (hDLL==NULL){
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51 char errBuf[256];
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52 unsigned int errorCode;
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53
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54 /* Get an error string from Win32 error code */
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55 char theInfo[256]; /* Pointer to error text
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56 from system */
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57 int theLength; /* Length of error text */
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58
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59 errorCode = GetLastError();
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60
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61 theLength = FormatMessage(
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62 FORMAT_MESSAGE_FROM_SYSTEM, /* flags */
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63 NULL, /* message source */
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64 errorCode, /* the message (error) ID */
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65 0, /* default language environment */
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66 (LPTSTR) theInfo, /* the buffer */
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67 sizeof(theInfo), /* the buffer size */
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68 NULL); /* no additional format args. */
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69
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70 /* Problem: could not get the error message.
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71 This should not happen if called correctly. */
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72 if (theLength == 0) {
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73 sprintf(errBuf,
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74 "DLL load failed with error code %d",
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75 errorCode);
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76 } else {
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77 size_t len;
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78 /* For some reason a \r\n
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79 is appended to the text */
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80 if (theLength >= 2 &&
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81 theInfo[theLength-2] == '\r' &&
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82 theInfo[theLength-1] == '\n') {
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83 theLength -= 2;
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84 theInfo[theLength] = '\0';
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85 }
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86 strcpy(errBuf, "DLL load failed: ");
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87 len = strlen(errBuf);
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88 strncpy(errBuf+len, theInfo,
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89 sizeof(errBuf)-len);
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90 errBuf[sizeof(errBuf)-1] = '\0';
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91 }
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92 PyErr_SetString(PyExc_ImportError, errBuf);
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93 return NULL;
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94 }
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95 p = GetProcAddress(hDLL, funcname);
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96 }
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97 #endif /* MS_WIN32 */
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98 #ifdef MS_WIN16
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99 {
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100 HINSTANCE hDLL;
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101 char pathbuf[16];
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102 if (strchr(pathname, '\\') == NULL &&
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103 strchr(pathname, '/') == NULL)
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104 {
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105 /* Prefix bare filename with ".\" */
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106 sprintf(pathbuf, ".\\%-.13s", pathname);
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107 pathname = pathbuf;
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108 }
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109 hDLL = LoadLibrary(pathname);
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110 if (hDLL < HINSTANCE_ERROR){
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111 char errBuf[256];
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112 sprintf(errBuf,
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113 "DLL load failed with error code %d", hDLL);
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114 PyErr_SetString(PyExc_ImportError, errBuf);
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115 return NULL;
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116 }
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117 p = GetProcAddress(hDLL, funcname);
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118 }
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119 #endif /* MS_WIN16 */
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120
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121 return p;
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122 }