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annotate src/loadso/os2/SDL_sysloadso.c @ 1365:b70f45aa5d0c

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Add missing clause
author Patrice Mandin <patmandin@gmail.com>
date Thu, 16 Feb 2006 22:33:34 +0000
parents 19418e4422cb
children d910939febfa
rev   line source
1361
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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24 /* System dependent library loading routines */
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25
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26 #include <stdio.h>
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27 #define INCL_DOSERRORS
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28 #define INCL_DOSMODULEMGR
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29 #include <os2.h>
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30
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31 #include "SDL_loadso.h"
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32
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33 void *SDL_LoadObject(const char *sofile)
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34 {
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35 HMODULE handle = NULL;
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36 char buf[512];
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37 APIRET ulrc = DosLoadModule(buf, sizeof (buf), (char *) sofile, &handle);
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38
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39 /* Generate an error message if all loads failed */
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40 if ((ulrc != NO_ERROR) || (handle == NULL))
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41 SDL_SetError("Failed loading %s: %s", sofile, buf);
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42
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43 return((void *) handle);
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44 }
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45
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46 void *SDL_LoadFunction(void *handle, const char *name)
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47 {
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48 const char *loaderror = "Unknown error";
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49 void *symbol = NULL;
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50 APIRET ulrc = DosQueryProcAddr((HMODULE)handle, 0, (char *)name, &symbol);
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51 if (ulrc == ERROR_INVALID_HANDLE)
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52 loaderror = "Invalid module handle";
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53 else if (ulrc == ERROR_INVALID_NAME)
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54 loaderror = "Symbol not found";
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55
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56 if (symbol == NULL)
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57 SDL_SetError("Failed loading %s: %s", name, loaderror);
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58
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59 return(symbol);
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60 }
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61
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62 void SDL_UnloadObject(void *handle)
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63 {
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64 if ( handle != NULL )
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65 DosFreeModule((HMODULE) handle);
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66 }
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67