#include <wayland-server.h>
#include <stdio.h>
#include <stdlib.h>

static void die(char const* s)
{
	perror(s);
	exit(EXIT_FAILURE);
}

static void on_release_shm(struct wl_client* client, struct wl_resource* resource)
{
	fprintf(stderr, "Releasing shm %p\n", (void*)resource);
	wl_resource_destroy(resource);
}

static const struct wl_shm_interface shm_impl = {
	.release = on_release_shm,
};

static void on_destroy_shm(struct wl_resource* resource)
{
	fprintf(stderr, "Destroyed shm %p\n", (void*)resource);
}

static void on_bind_shm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
{
	struct wl_resource* resource = wl_resource_create(client, &wl_shm_interface, wl_shm_interface.version, id);
	fprintf(stderr, "Bound shm %p\n", (void*)resource);
	wl_resource_set_implementation(resource, &shm_impl, NULL, on_destroy_shm);
}

int main(int argc, char** argv)
{
	struct wl_display* disp = wl_display_create();
	if (!disp) { die("wl_display_create"); }
	
	char const* sock = wl_display_add_socket_auto(disp);
	if (!sock) { die("wl_display_add_socket_auto"); }

	printf("Compositor running on %s\n", sock);

	wl_global_create(disp, &wl_shm_interface, wl_shm_interface.version, NULL, on_bind_shm);

	wl_display_run(disp);

	wl_display_destroy(disp);
	return EXIT_SUCCESS;
}