/* Test program to test dynamic loading with the loadso subsystem. 

*/

#include <stdio.h>

#include <stdlib.h>

#include "SDL.h"

typedef int (*fntype)(const char *);

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;

	if (argc != 3) {

		fprintf(stderr, "USAGE: %s <library> <functionname>\n");

		fprintf(stderr, "       %s --hello <library with puts()>\n");

		return 1;

	}

	/* Initialize SDL */

	if ( SDL_Init(0) < 0 ) {

		fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());

		return 2;

	}

	if (strcmp(argv[1], "--hello") == 0) {

		hello = 1;

		libname = argv[2];

		symname = "puts";

	} else {

		libname = argv[1];

		symname = argv[2];

	}

	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);

}