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import time
from subprocess import Popen, PIPE, STDOUT
def timeout_run(proc, timeout, note='unnamed process', full_output=False):
start = time.time()
if timeout is not None:
while time.time() - start < timeout and proc.poll() is None:
time.sleep(0.1)
if proc.poll() is None:
proc.kill() # XXX bug: killing emscripten.py does not kill it's child process!
raise Exception("Timed out: " + note)
out = proc.communicate()
return '\n'.join(out) if full_output else out[0]
def run_js(filename, engine=None, args=[], check_timeout=False, stdout=PIPE, stderr=None, cwd=None, full_output=False):
if type(engine) is not list:
engine = [engine]
command = engine + [filename] + (['--'] if 'd8' in engine[0] or 'jsc' in engine[0] else []) + args
return timeout_run(
Popen(
command,
stdout=stdout,
stderr=stderr,
cwd=cwd),
15*60 if check_timeout else None,
'Execution',
full_output=full_output)
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