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comparison src/loadso/os2/SDL_sysloadso.c @ 1361:19418e4422cb

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New configure-based build system. Still work in progress, but much improved
author Sam Lantinga <slouken@libsdl.org>
date Thu, 16 Feb 2006 10:11:48 +0000
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children d910939febfa
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1360:70a9cfb4cf1b 1361:19418e4422cb
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21 */
22
23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24 /* System dependent library loading routines */
25
26 #include <stdio.h>
27 #define INCL_DOSERRORS
28 #define INCL_DOSMODULEMGR
29 #include <os2.h>
30
31 #include "SDL_loadso.h"
32
33 void *SDL_LoadObject(const char *sofile)
34 {
35 HMODULE handle = NULL;
36 char buf[512];
37 APIRET ulrc = DosLoadModule(buf, sizeof (buf), (char *) sofile, &handle);
38
39 /* Generate an error message if all loads failed */
40 if ((ulrc != NO_ERROR) || (handle == NULL))
41 SDL_SetError("Failed loading %s: %s", sofile, buf);
42
43 return((void *) handle);
44 }
45
46 void *SDL_LoadFunction(void *handle, const char *name)
47 {
48 const char *loaderror = "Unknown error";
49 void *symbol = NULL;
50 APIRET ulrc = DosQueryProcAddr((HMODULE)handle, 0, (char *)name, &symbol);
51 if (ulrc == ERROR_INVALID_HANDLE)
52 loaderror = "Invalid module handle";
53 else if (ulrc == ERROR_INVALID_NAME)
54 loaderror = "Symbol not found";
55
56 if (symbol == NULL)
57 SDL_SetError("Failed loading %s: %s", name, loaderror);
58
59 return(symbol);
60 }
61
62 void SDL_UnloadObject(void *handle)
63 {
64 if ( handle != NULL )
65 DosFreeModule((HMODULE) handle);
66 }
67