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Merged r2899:2900 from SDL-1.2 branch to trunk: testloadso program.
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/* Test program to test dynamic loading with the loadso subsystem. | ||
*/ | ||
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#include <stdio.h> | ||
#include <stdlib.h> | ||
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#include "SDL.h" | ||
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typedef int (*fntype)(const char *); | ||
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int main(int argc, char *argv[]) | ||
{ | ||
int retval = 0; | ||
int hello = 0; | ||
const char *libname = NULL; | ||
const char *symname = NULL; | ||
void *lib = NULL; | ||
fntype fn = NULL; | ||
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if (argc != 3) { | ||
fprintf(stderr, "USAGE: %s <library> <functionname>\n"); | ||
fprintf(stderr, " %s --hello <library with puts()>\n"); | ||
return 1; | ||
} | ||
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/* Initialize SDL */ | ||
if ( SDL_Init(0) < 0 ) { | ||
fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); | ||
return 2; | ||
} | ||
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if (strcmp(argv[1], "--hello") == 0) { | ||
hello = 1; | ||
libname = argv[2]; | ||
symname = "puts"; | ||
} else { | ||
libname = argv[1]; | ||
symname = argv[2]; | ||
} | ||
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lib = SDL_LoadObject(libname); | ||
if (lib == NULL) { | ||
fprintf(stderr, "SDL_LoadObject('%s') failed: %s\n", | ||
libname, SDL_GetError()); | ||
retval = 3; | ||
} else { | ||
fn = (fntype) SDL_LoadFunction(lib, symname); | ||
if (fn == NULL) { | ||
fprintf(stderr, "SDL_LoadFunction('%s') failed: %s\n", | ||
symname, SDL_GetError()); | ||
retval = 4; | ||
} else { | ||
printf("Found %s in %s at %p\n", symname, libname); | ||
if (hello) { | ||
printf("Calling function...\n"); | ||
fflush(stdout); | ||
fn(" HELLO, WORLD!\n"); | ||
printf("...apparently, we survived. :)\n"); | ||
printf("Unloading library...\n"); | ||
fflush(stdout); | ||
} | ||
} | ||
SDL_UnloadObject(lib); | ||
} | ||
SDL_Quit(); | ||
return(0); | ||
} | ||
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