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annotate Python/dynload_os2.c @ 17405:afbb65b60fa2 2.0

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Inspired by Tim Peters' 1.14->1.15 checkin to asynchat Quoting orignal message: ''' Fix from the Madusa mailing list: http://groups.yahoo.com/group/medusa/message/333 It's clear that Medusa should not be checking for an empty buffer via "buf is ''". The patch merely changes "is" to "==". However, there's a mystery here all the same: Python attempts to store null strings uniquely, so it's unclear why "buf is ''" ever returned false when buf actually was empty. *Some* string operations produce non-unique null strings, e.g. '''
author Moshe Zadka <moshez@math.huji.ac.il>
date Wed, 11 Apr 2001 08:06:02 +0000
parents 6f6f965c5e2d
children 225c7dd17e37
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2 /* Support for dynamic loading of extension modules */
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3
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4 #define INCL_DOSERRORS
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5 #define INCL_DOSMODULEMGR
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6 #include <os2.h>
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7
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8 #include "Python.h"
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9 #include "importdl.h"
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12 const struct filedescr _PyImport_DynLoadFiletab[] = {
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13 {".pyd", "rb", C_EXTENSION},
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14 {".dll", "rb", C_EXTENSION},
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15 {0, 0}
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16 };
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17
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18 dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
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19 const char *pathname, FILE *fp)
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20 {
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21 dl_funcptr p;
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22 APIRET rc;
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23 HMODULE hDLL;
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24 char failreason[256];
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25 char funcname[258];
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27 rc = DosLoadModule(failreason,
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28 sizeof(failreason),
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29 pathname,
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30 &hDLL);
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32 if (rc != NO_ERROR) {
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33 char errBuf[256];
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34 sprintf(errBuf,
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35 "DLL load failed, rc = %d: %s",
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36 rc, failreason);
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37 PyErr_SetString(PyExc_ImportError, errBuf);
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38 return NULL;
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39 }
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40
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41 sprintf(funcname, "init%.200s", shortname);
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42 rc = DosQueryProcAddr(hDLL, 0L, funcname, &p);
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43 if (rc != NO_ERROR)
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44 p = NULL; /* Signify Failure to Acquire Entrypoint */
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45 return p;
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46 }