dlopen.c

/* windows */
typedef HMODULE uv_lib_t;
#define UV_CALL FAR WINAPI

/* unix */
typedef void* uv_lib_t;
#define UV_CALL

/* returns -1 on error */
/* filename in utf-8 */
int uv_dlopen(const char* filename, uv_lib_t* library);
int uv_dlclose(uv_lib_t library);

/* retrieve a function pointer */
typedef void (UV_CALL *uv_func_t)();
uv_func_t uv_dlsym(uv_lib_t library, const char* name);


/* example */
typedef int (UV_CALL *module_init_t)(uv_loop_t* loop);

uv_lib_t module;

if (dlopen("foo.node", &module) != 0) {
  assert(0 && "omg it failed");
}

module_init_t init_func = (module_init_t) uv_dlsym(module, "init");
assert(init_func != NULL);