// Copyright 2019 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 <stdio.h>

#include <emscripten.h>

// A "sync" tunnel that adds 1.

#if USE_EM_JS

EM_JS(int, sync_tunnel, (int value), {

return Asyncify.handleSleep((wakeUp) => {

setTimeout(function() {

wakeUp(value + 1);

}, 1);

});

})

EM_JS(int, sync_tunnel_bool, (bool value), {

return Asyncify.handleSleep((wakeUp) => {

setTimeout(function() {

wakeUp(!value);

}, 1);

});

})

#else

extern "C" int sync_tunnel(int);

extern "C" int sync_tunnel_bool(bool);

#endif

int main() {

#ifdef BAD

EM_ASM({

window.disableErrorReporting = true;

window.onerror = function(e) {

var success = e.toString().indexOf("import sync_tunnel was not in ASYNCIFY_IMPORTS, but changed the state") > 0;

if (success && !Module.reported) {

Module.reported = true;

console.log("reporting success");

// manually REPORT_RESULT; we shouldn't call back into native code at this point

var xhr = new XMLHttpRequest();

xhr.open("GET", "http://localhost:8888/report_result?0");

xhr.onload = xhr.onerror = function() {

window.close();

};

xhr.send();

}

};

});

#endif

int x;

x = sync_tunnel(0);

assert(x == 1);

x = sync_tunnel(1);

assert(x == 2);

x = sync_tunnel(2);

assert(x == 3);

x = sync_tunnel(42);

assert(x == 43);

x = sync_tunnel(-1);

assert(x == 0);

x = sync_tunnel(-2);

assert(x == -1);

bool y;

y = sync_tunnel_bool(false);

assert(y == true);

y = sync_tunnel_bool(true);

assert(y == false);

#ifdef BAD

// We should not get here.

printf("We should not get here\n");

#else

// Success!

REPORT_RESULT(0);

#endif

return 0;

}