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#ifndef GSR_LIBRARY_LOADER_H
#define GSR_LIBRARY_LOADER_H
#include <dlfcn.h>
#include <stdbool.h>
#include <stdio.h>
typedef struct {
void **func;
const char *name;
} dlsym_assign;
static void* dlsym_print_fail(void *handle, const char *name, bool required) {
dlerror();
void *sym = dlsym(handle, name);
char *err_str = dlerror();
if(!sym)
fprintf(stderr, "%s: dlsym(handle, \"%s\") failed, error: %s\n", required ? "error" : "warning", name, err_str ? err_str : "(null)");
return sym;
}
/* |dlsyms| should be null terminated */
static bool dlsym_load_list(void *handle, const dlsym_assign *dlsyms) {
bool success = true;
for(int i = 0; dlsyms[i].func; ++i) {
*dlsyms[i].func = dlsym_print_fail(handle, dlsyms[i].name, true);
if(!*dlsyms[i].func)
success = false;
}
return success;
}
/* |dlsyms| should be null terminated */
static void dlsym_load_list_optional(void *handle, const dlsym_assign *dlsyms) {
for(int i = 0; dlsyms[i].func; ++i) {
*dlsyms[i].func = dlsym_print_fail(handle, dlsyms[i].name, false);
}
}
#endif /* GSR_LIBRARY_LOADER_H */
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