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test_asyncify_lists.cpp

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 webgpu_testing

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test_asyncify_lists.cpp

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#include <assert.h>

#include <stdio.h>

#include <emscripten.h>

volatile int x;

int bar();

// Foo is a function that needs asyncify support.

__attribute__((noinline))

int foo(int a = 0, double b = 0) {

if (x == 1337) return bar(); // don't inline me

assert(a == b);

emscripten_sleep(1);

return 1;

}

// Bar does not.

__attribute__((noinline))

int bar() {

if (x == 1337) return foo(); // don't inline me

return 2;

}

// C++ names

struct Structy {

__attribute__((noinline))

int funcy() {

if (x == 1337) return funcy(); // don't inline me

emscripten_sleep(1);

return 3;

}

};

// Baz does, because it calls foo.

__attribute__((noinline))

void baz() {

if (x == 1337) {

// don't inline me

foo();

bar();

baz();

}

puts("baz");

printf("foo: %d\n", foo());

printf("bar: %d\n", bar());

printf("c++: %d\n", Structy().funcy());

}

// Ditto, with extern C

__attribute__((noinline))

extern "C" void c_baz() {

if (x == 1337) {

// don't inline me

foo();

bar();

baz();

}

puts("c_baz");

printf("foo: %d\n", foo());

printf("bar: %d\n", bar());

printf("c++: %d\n", Structy().funcy());

}

int main() {

baz();

EM_ASM({

Module.counter = (Module.counter || 0) + 1;

if (Module.counter > 10) throw "infinite loop?";

});

c_baz();

}