tests/doublestart.c

#include <stdio.h>
#include <emscripten.h>

int times = 0;

void later(void* nada) {
  int result = times;
  REPORT_RESULT();
}

void main_loop(void) {
  static int cnt = 0;
  if (++cnt >= 10) emscripten_cancel_main_loop();
}

int main(void) {
  emscripten_async_call(later, NULL, 2000);
  times++;
  printf("This should only appear once.\n");
  emscripten_set_main_loop(main_loop, 10, 0);
  return 0;
}