def spawn_worker(self, calibrate_loops, calibrate_warmups):
env = create_environ(self.args.inherit_environ, self.args.locale)
rpipe, wpipe = create_pipe()
with rpipe:
with wpipe:
warg = wpipe.to_subprocess()
cmd = self.worker_cmd(calibrate_loops, calibrate_warmups, warg)
kw = {}
if MS_WINDOWS:
# Set close_fds to False to call CreateProcess() with
# bInheritHandles=True. For pass_handles, see
# http://bugs.python.org/issue19764
kw['close_fds'] = False
elif sys.version_info >= (3, 2):
kw['pass_fds'] = [wpipe.fd]
proc = subprocess.Popen(cmd, env=env, **kw)
with popen_killer(proc):
with rpipe.open_text() as rfile:
bench_json = rfile.read()
exitcode = proc.wait()
if exitcode:
raise RuntimeError("%s failed with exit code %s" %
(cmd[0], exitcode))
return _load_suite_from_pipe(bench_json)
def run_command(cmd, **kw):
proc = subprocess.Popen(cmd, **kw)
with popen_killer(proc):
proc.wait()
return proc.returncode