#include <dlfcn.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int main(int argc, char **argv)
{
    void *handle;
    int (*pmlib)();
    char *error;
    int i;

    handle = dlopen("./pmlib.so", RTLD_LAZY);
    if (!handle) {
        fprintf(stderr, "%s\n", dlerror());
        exit(1);
    }
    dlerror();

    pmlib = (int (*)(int)) dlsym(handle, "pmlib");
    error = dlerror();
    if (error != NULL) {
        fprintf(stderr, "%s\n", error);
        exit(1);
    }

    printf("Calling pmlib()...\n");
    i = (*pmlib)();
    sleep(1);
    printf("pmlib() returned %d!\n", i);
    sleep(1);
    printf("main() done!\n");
    return dlclose(handle);
}