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/*
* Copyright 2017 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <assert.h>
#include <stdbool.h>
#include <stdio.h>
#include <emscripten/em_asm.h>
#include <emscripten/eventloop.h>
#include <emscripten/threading.h>
_Atomic bool done_callback = false;
void main_thread_callback(void* user_data) {
printf("main_thread_callback called\n");
done_callback = true;
}
void set_timeout_on_main() {
int is_worker = EM_ASM_INT(return ENVIRONMENT_IS_WORKER);
printf("main: ENVIRONMENT_IS_WORKER: %d\n", is_worker);
// Verify that we can do async work here on the main thread
// without causing the runtime to exit.
emscripten_set_immediate(main_thread_callback, NULL);
}
int main() {
int is_worker = EM_ASM_INT(return ENVIRONMENT_IS_WORKER);
printf("ENVIRONMENT_IS_WORKER: %d\n", is_worker);
assert(is_worker);
emscripten_sync_run_in_main_runtime_thread(EM_FUNC_SIG_V, set_timeout_on_main);
while (!done_callback) {}
// Repeat the same process to ensure the main thread is still responsive.
done_callback = false;
emscripten_sync_run_in_main_runtime_thread(EM_FUNC_SIG_V, set_timeout_on_main);
while (!done_callback) {}
printf("main done\n");
return 0;
}
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