Sorry for the noob question, but here goes.
# Source code
$ cat headless_main_loop.cc
#include <stdio.h>
#include "emscripten/emscripten.h"
int foo = 0;
void dummy_loop() {
printf("dummy loop: %d\n", foo++);
if (foo >= 5)
emscripten_cancel_main_loop();
}
int main(int argc, char **argv) {
printf("Start\n");
emscripten_set_main_loop(dummy_loop, 0, true); // XXX
printf("Main done.\n");
return 0;
}
# Build command for nodejs
$ ~/src/emscripen/emscripten/emcc -Qunused-arguments -Wall -Wextra -Werror
-Wno-unused-parameter -fexceptions -std=c++11 -x c++ -iquote ./src -iquote
~/src/emscripen/emscripten/system/include/ -I . -DNDEBUG -O2
src/trash/poc/headless_main_loop.cc -o
build/trash/poc/headless_main_loop.js -s HEADLESS=1
# Try with nodejs
$ (dev-test_pb) nodejs trash/poc/headless_main_loop.js
Start
# Change line XXX from true to false (infinite loop), rebuild
# Try again
$ (dev-test_pb) nodejs trash/poc/headless_main_loop.js
Start
Main done.
In both cases, it works as expected if i compile to html and run in a
browser (obviously, without the HEADLESS=1 option).
Specifically, I see this in the console:
Start
Main done.
dummy loop: 0
dummy loop: 1
dummy loop: 2
dummy loop: 3
dummy loop: 4
...which is exactly what i'd expect from both node and browser.
Am I crazy, or shouldn't this work?
Note that this is both with the default ubuntu install (1.4.9, old) and the
version i'm actually using from head (1.9.0 (commit
7dc8c2ff08e46c9d9a88ba44bf221a404eeb1e5e))
Thanks,
-dave-
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