emsdk/upstream/emscripten/test/emscripten_request_animation_frame_loop.c

#include <emscripten/html5.h>
#include <assert.h>
#include <stdlib.h>

double previousRafTime = 0;
int funcExecuted = 0;

void testDone(void *userData) {
	assert((long)userData == 2);
	assert(funcExecuted == 10);
	exit(0);
}

bool tick(double time, void *userData) {
	assert(time > previousRafTime);
	previousRafTime = time;
	assert((long)userData == 1);
	++funcExecuted;
	if (funcExecuted == 10)
	{
		emscripten_set_timeout(testDone, 300, (void*)2);
	}
	return funcExecuted < 10;
}

int main() {
	emscripten_request_animation_frame_loop(tick, (void*)1);
}