SDL/test/testloadso.c
Pierre Wendling d0bbfdbfb8 Clang-Tidy fixes (#6725)
(cherry picked from commit 3c501b963dd8f0605a6ce7978882df39ba76f9cd)
2022-12-01 13:08:50 -08:00

80 lines
2.2 KiB
C

/*
Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely.
*/
/* Test program to test dynamic loading with the loadso subsystem.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.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) {
const char *app = argv[0];
SDL_Log("USAGE: %s <library> <functionname>\n", app);
SDL_Log(" %s --hello <lib with puts()>\n", app);
return 1;
}
/* Initialize SDL */
if (SDL_Init(0) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
return 2;
}
if (SDL_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) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_LoadObject('%s') failed: %s\n",
libname, SDL_GetError());
retval = 3;
} else {
fn = (fntype)SDL_LoadFunction(lib, symname);
if (fn == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_LoadFunction('%s') failed: %s\n",
symname, SDL_GetError());
retval = 4;
} else {
SDL_Log("Found %s in %s at %p\n", symname, libname, fn);
if (hello) {
SDL_Log("Calling function...\n");
fn(" HELLO, WORLD!\n");
SDL_Log("...apparently, we survived. :)\n");
SDL_Log("Unloading library...\n");
}
}
SDL_UnloadObject(lib);
}
SDL_Quit();
return retval;
}