def _handleMessageFromChild(self, selector, fd):
"""handler for message from a child process"""
line = _str(fd.readline())
if line[:4] == 'done':
pid = self._activeProcesses[fd]
os.waitpid(pid, 0)
self._unRegisterChild(fd)
def _handleMessageFromChild(self, selector, fd):
"""handler for message from a child process"""
line = _str(fd.readline())
if line[:4] == 'done':
pid = self._activeProcesses[fd]
os.waitpid(pid, 0)
self._unRegisterChild(fd)
def onChild(pid, fromparent, toparent):
try:
response = self._server._marshaled_dispatch(data)
self._sendResponse(response)
line = _str(fromparent.readline())
toparent.write(_b('done\n'))
toparent.flush()
except:
logger(name='pathos.xmlrpc', level=30).error(print_exc_info())
os._exit(0)
def onChild(pid, fromparent, toparent):
try:
response = self._server._marshaled_dispatch(data)
self._sendResponse(response)
line = _str(fromparent.readline())
toparent.write(_b('done\n'))
toparent.flush()
except:
logger(name='pathos.xmlrpc', level=30).error(print_exc_info())
os._exit(0)
def response(self):
'''Return the response from the launched process.
Return None if no response was received yet from a background process.
''' #XXX: if PY3, return bytes, decode to ascii, take encoding, or ???
if self._stdout is None:
raise PipeException(
"'launch' is required after any reconfiguration")
if self.codec is True: codec = 'ascii'
elif self.codec is False: codec = False
elif self.codec is None: codec = False
else: codec = self.codec
if self._response is not None: return _str(self._response, codec)
# when running in foreground _pid is 0 (may change to -1)
if self._pid <= 0:
self._response = self._stdout.read()
return _str(self._response, codec)
# handle response from a background process
def onData(selector, fobj):
if self.verbose: print("handling pipe response")
self._debug.info('on_remote')
self._response = fobj.read()
selector.state = False
return
def onTimeout(selector):
selector.state = False
sel = Selector()
#sel._info.activate()
sel.notifyOnReadReady(self._stdout, onData)
sel.notifyWhenIdle(onTimeout)
sel.watch(2.0)
# reset _response to None to allow capture of a next response
# from a background process
return _str(self._response, codec)
def response(self):
'''Return the response from the launched process.
Return None if no response was received yet from a background process.
''' #XXX: if PY3, return bytes, decode to ascii, take encoding, or ???
if self._stdout is None:
raise PipeException("'launch' is required after any reconfiguration")
if self.codec is True: codec = 'ascii'
elif self.codec is False: codec = False
elif self.codec is None: codec = False
else: codec = self.codec
if self._response is not None: return _str(self._response, codec)
# when running in foreground _pid is 0 (may change to -1)
if self._pid <= 0:
self._response = self._stdout.read()
return _str(self._response, codec)
# handle response from a background process
def onData(selector, fobj):
if self.verbose: print("handling pipe response")
self._debug.info('on_remote')
self._response = fobj.read()
selector.state = False
return
def onTimeout(selector):
selector.state = False
sel = Selector()
#sel._info.activate()
sel.notifyOnReadReady(self._stdout, onData)
sel.notifyWhenIdle(onTimeout)
sel.watch(2.0)
# reset _response to None to allow capture of a next response
# from a background process
return _str(self._response, codec)
def onChild(pid, fromparent, toparent):
toparent.write(_b('hello dad\n'))
toparent.flush()
s = _str(fromparent.readline())
print(s, end='')
os._exit(0)
def onParent(pid, fromchild, tochild):
s = _str(fromchild.readline())
print(s, end='')
tochild.write(_b('hello son\n'))
tochild.flush()
os.wait()
def onChild(pid, fromparent, toparent):
toparent.write(_b('hello dad\n'))
toparent.flush()
s = _str(fromparent.readline())
print(s, end='')
os._exit(0)
def onParent(pid, fromchild, tochild):
s = _str(fromchild.readline())
print(s, end='')
tochild.write(_b('hello son\n'))
tochild.flush()
os.wait()
