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annotate src/loadso/os2/SDL_sysloadso.c @ 3199:3e1bf2b8bd81

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This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form. It also update configure.in to compile the linux version of the library. The three versions are all dummies implementations that do nothing. They are being checked in as place holders. Mostly, I just wanted to get place holders and the configure.in checked in.
author Bob Pendleton <bob@pendleton.com>
date Wed, 24 Jun 2009 20:04:08 +0000
parents 99210400e8b9
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 #include "SDL_config.h"
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23
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24 #ifdef SDL_LOADSO_OS2
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25
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26 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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27 /* System dependent library loading routines */
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28
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29 #include <stdio.h>
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30 #define INCL_DOSERRORS
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31 #define INCL_DOSMODULEMGR
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32 #include <os2.h>
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33
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34 #include "SDL_loadso.h"
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35
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36 void *
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37 SDL_LoadObject(const char *sofile)
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38 {
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39 HMODULE handle = NULL;
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40 char buf[512];
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41 APIRET ulrc = DosLoadModule(buf, sizeof(buf), (char *) sofile, &handle);
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42
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43 /* Generate an error message if all loads failed */
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44 if ((ulrc != NO_ERROR) || (handle == NULL))
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45 SDL_SetError("Failed loading %s: %s", sofile, buf);
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46
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47 return ((void *) handle);
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48 }
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49
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50 void *
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51 SDL_LoadFunction(void *handle, const char *name)
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52 {
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53 const char *loaderror = "Unknown error";
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54 void *symbol = NULL;
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55 APIRET ulrc =
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56 DosQueryProcAddr((HMODULE) handle, 0, (char *) name, &symbol);
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57 if (ulrc == ERROR_INVALID_HANDLE)
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58 loaderror = "Invalid module handle";
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59 else if (ulrc == ERROR_INVALID_NAME)
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60 loaderror = "Symbol not found";
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61
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62 if (symbol == NULL)
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63 SDL_SetError("Failed loading %s: %s", name, loaderror);
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64
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65 return (symbol);
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66 }
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67
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68 void
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69 SDL_UnloadObject(void *handle)
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70 {
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71 if (handle != NULL)
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72 DosFreeModule((HMODULE) handle);
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73 }
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74
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75 #endif /* SDL_LOADSO_OS2 */
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76
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77 /* vi: set ts=4 sw=4 expandtab: */