File: emscripten_set_timeout.c

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emscripten 3.1.69%2Bdfsg-4
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#include <emscripten/emscripten.h>
#include <emscripten/html5.h>
#include <emscripten/em_asm.h>
#include <assert.h>
#include <stdlib.h>

int func1Executed = 0;
int func2Executed = 0;

void func1(void *userData);

void func2(void *userData) {
  assert((long)userData == 2);
  ++func2Executed;

  if (func2Executed == 1)
  {
    // Test canceling a setTimeout: register a callback but then cancel it immediately
    long id = emscripten_set_timeout(func1, 10, (void*)2);
    emscripten_clear_timeout(id);

    emscripten_set_timeout(func2, 100, (void*)2);
  }
  if (func2Executed == 2)
  {
    assert(func1Executed == 1);
    exit(0);
  }
}

void func1(void *userData) {
  assert((long)userData == 1);
  ++func1Executed;

  assert(func1Executed == 1);

  emscripten_set_timeout(func2, 100, (void*)2);
}

int main() {
  emscripten_set_timeout(func1, 100, (void*)1);
  emscripten_exit_with_live_runtime();
  return 99;
}