def testWithPatch(self):
patch.patch_os()
assert os.fork is not unpatched_fork
a, b = coio.socketpair()
pid = os.fork()
if pid: # Parent.
try:
a = a.dup()
b = b.dup()
RunWorker(b, a, self.MAX_SIZE)
finally:
got_pid, status = os.waitpid(pid, 0)
assert got_pid == pid
assert status == 0, 'child exited with status 0x%x' % status
else:
try:
# No need for coio.reinit(), our patched fork does that.
RunWorker(a, b, self.MAX_SIZE)
os._exit(0)
except:
sys.stderr.write(sys.exc_info())
os._exit(1)
# by [email protected] at Mon Apr 19 02:16:27 CEST 2010 """Demo for communicating with children via subprocess in non-blocking way.""" __author__ = '[email protected] (Peter Szabo)' import subprocess import sys from syncless import coio from syncless import patch def ProgressReporter(delta_sec): while True: sys.stderr.write('.') coio.sleep(delta_sec) if __name__ == "__main__": # Without this patch_...() call the ProgressReporter wouldn't be scheduled, # and thus the progress dots wouldn't be printed. if len(sys.argv) > 1: patch.patch_os() else: patch.patch_subprocess() coio.stackless.tasklet(ProgressReporter)(0.05) p = subprocess.Popen('sleep 1; ps x', stdout=subprocess.PIPE, shell=True, close_fds=True) for line in p.stdout: print repr(line) print 'returncode = %d' % p.wait()
__author__ = '[email protected] (Peter Szabo)' import warnings warnings.simplefilter('ignore', DeprecationWarning) # for popen2 import popen2 import sys from syncless import coio from syncless import patch def ProgressReporter(delta_sec): while True: sys.stderr.write('.') coio.sleep(delta_sec) if __name__ == "__main__": # Without this patch_...() call the ProgressReporter wouldn't be scheduled, # and thus the progress dots wouldn't be printed. if len(sys.argv) > 1: patch.patch_os() else: patch.patch_popen2() coio.stackless.tasklet(ProgressReporter)(0.05) r, w = popen2.popen2('sleep 1; ps x') for line in r: print repr(line) print 'bye'
