/*

* 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 <emscripten.h>

#include <stdio.h>

#include <setjmp.h>

static jmp_buf buf;

void second(void) {

printf("second\n");

emscripten_sleep(1);

longjmp(buf, -1);

}

void first(void) {

printf("first\n"); // prints

emscripten_sleep(1);

longjmp(buf, 1); // jumps back to where setjmp was called - making setjmp now

// return 1

}

int main() {

volatile int x = 0;

emscripten_sleep(1);

int jmpval = setjmp(buf);

if (!jmpval) {

x++; // should be properly restored once longjmp jumps back

first(); // when executed, setjmp returns 1

printf("skipped\n"); // does not print

} else if (jmpval == 1) { // when first() jumps back, setjmp returns 1

printf("result: %d %d\n", x, jmpval); // prints

x++;

emscripten_sleep(1);

second(); // when executed, setjmp returns -1

emscripten_sleep(1);

} else if (jmpval == -1) { // when second() jumps back, setjmp returns -1

printf("result: %d %d\n", x, jmpval); // prints

}

emscripten_sleep(1);

assert(x == 2);

return 0;

}