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comparison test/testloadso.c @ 2067:dcdb175c2829

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Merged r2899:2900 from SDL-1.2 branch to trunk: testloadso program.
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 07 Nov 2006 14:36:47 +0000
parents
children f16a7d02a176
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2066:8f8066b84b3e 2067:dcdb175c2829
1
2 /* Test program to test dynamic loading with the loadso subsystem.
3 */
4
5 #include <stdio.h>
6 #include <stdlib.h>
7
8 #include "SDL.h"
9
10 typedef int (*fntype)(const char *);
11
12 int main(int argc, char *argv[])
13 {
14 int retval = 0;
15 int hello = 0;
16 const char *libname = NULL;
17 const char *symname = NULL;
18 void *lib = NULL;
19 fntype fn = NULL;
20
21 if (argc != 3) {
22 fprintf(stderr, "USAGE: %s <library> <functionname>\n");
23 fprintf(stderr, " %s --hello <library with puts()>\n");
24 return 1;
25 }
26
27 /* Initialize SDL */
28 if ( SDL_Init(0) < 0 ) {
29 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
30 return 2;
31 }
32
33 if (strcmp(argv[1], "--hello") == 0) {
34 hello = 1;
35 libname = argv[2];
36 symname = "puts";
37 } else {
38 libname = argv[1];
39 symname = argv[2];
40 }
41
42 lib = SDL_LoadObject(libname);
43 if (lib == NULL) {
44 fprintf(stderr, "SDL_LoadObject('%s') failed: %s\n",
45 libname, SDL_GetError());
46 retval = 3;
47 } else {
48 fn = (fntype) SDL_LoadFunction(lib, symname);
49 if (fn == NULL) {
50 fprintf(stderr, "SDL_LoadFunction('%s') failed: %s\n",
51 symname, SDL_GetError());
52 retval = 4;
53 } else {
54 printf("Found %s in %s at %p\n", symname, libname);
55 if (hello) {
56 printf("Calling function...\n");
57 fflush(stdout);
58 fn(" HELLO, WORLD!\n");
59 printf("...apparently, we survived. :)\n");
60 printf("Unloading library...\n");
61 fflush(stdout);
62 }
63 }
64 SDL_UnloadObject(lib);
65 }
66 SDL_Quit();
67 return(0);
68 }
69
70