def received(self):
consumed_data = False
for process in list(self._process):
try:
proc = self._process[process]
poll = proc.poll()
# proc.poll returns None if the process is still fine
# -[signal], like -15, if the process was terminated
if poll is not None:
self._handle_problem(process)
return
r, _, _ = select.select([
proc.stdout,
], [], [], 0)
if not r:
continue
try:
# Calling next() on Linux and OSX works perfectly well
# but not on OpenBSD where it always raise StopIteration
# and only readline() works
buf = str_ascii(proc.stdout.read(16384))
if buf == '' and poll is not None:
# if proc.poll() is None then
# process is fine, we received an empty line because
# we're doing .readline() on a non-blocking pipe and
# the process maybe has nothing to send yet
self._handle_problem(process)
continue
raw = self._buffer.get(process, '') + buf
while '\n' in raw:
line, raw = raw.split('\n', 1)
line = line.rstrip()
consumed_data = True
self.logger.debug(
'command from process %s : %s ' % (process, line),
'process')
yield (process, formated(line))
self._buffer[process] = raw
except IOError as exc:
if not exc.errno or exc.errno in error.fatal:
# if the program exits we can get an IOError with errno code zero !
self._handle_problem(process)
elif exc.errno in error.block:
# we often see errno.EINTR: call interrupted and
# we most likely have data, we will try to read them a the next loop iteration
pass
else:
self.logger.debug(
'unexpected errno received from forked process (%s)'
% errstr(exc), 'process')
except StopIteration:
if not consumed_data:
self._handle_problem(process)
except (subprocess.CalledProcessError, OSError, ValueError):
self._handle_problem(process)
def received (self):
consumed_data = False
for process in list(self._process):
try:
proc = self._process[process]
poll = proc.poll()
# proc.poll returns None if the process is still fine
# -[signal], like -15, if the process was terminated
if poll is not None:
self._handle_problem(process)
return
r,_,_ = select.select([proc.stdout,],[],[],0)
if not r:
continue
try:
# Calling next() on Linux and OSX works perfectly well
# but not on OpenBSD where it always raise StopIteration
# and only readline() works
buf = str_ascii(proc.stdout.read(16384))
if buf == '' and poll is not None:
# if proc.poll() is None then
# process is fine, we received an empty line because
# we're doing .readline() on a non-blocking pipe and
# the process maybe has nothing to send yet
self._handle_problem(process)
continue
raw = self._buffer.get(process,'') + buf
while '\n' in raw:
line,raw = raw.split('\n',1)
line = line.rstrip()
consumed_data = True
self.logger.debug('command from process %s : %s ' % (process,line),'process')
yield (process,formated(line))
self._buffer[process] = raw
except IOError as exc:
if not exc.errno or exc.errno in error.fatal:
# if the program exits we can get an IOError with errno code zero !
self._handle_problem(process)
elif exc.errno in error.block:
# we often see errno.EINTR: call interrupted and
# we most likely have data, we will try to read them a the next loop iteration
pass
else:
self.logger.debug('unexpected errno received from forked process (%s)' % errstr(exc),'process')
except StopIteration:
if not consumed_data:
self._handle_problem(process)
except (subprocess.CalledProcessError,OSError,ValueError):
self._handle_problem(process)
def __str__(self):
return "%s / %s%s" % (
self._str_code.get(self.code, 'unknown error'),
self._str_subcode.get(
(self.code, self.subcode), 'unknow reason'), '%s' %
(' / %s' % str_ascii(self.data) if self.data else ''))
def __str__ (self):
return "%s / %s%s" % (
self._str_code.get(self.code,'unknown error'),
self._str_subcode.get((self.code,self.subcode),'unknow reason'),
'%s' % (' / %s' % str_ascii(self.data) if self.data else '')
)
