def run(self):
log_interactive.info("Pipe engine thread started.")
try:
for p in self.active_pipes:
p.start()
sources = self.active_sources
sources.add(self)
exhausted = set([])
RUN = True
STOP_IF_EXHAUSTED = False
while RUN and (not STOP_IF_EXHAUSTED or len(sources) > 1):
fds = select_objects(sources, 2)
for fd in fds:
if fd is self:
cmd = self._read_cmd()
if cmd == "X":
RUN = False
break
elif cmd == "B":
STOP_IF_EXHAUSTED = True
elif cmd == "A":
sources = self.active_sources - exhausted
sources.add(self)
else:
warning(
"Unknown internal pipe engine command: %r. Ignoring."
% cmd)
elif fd in sources:
try:
fd.deliver()
except Exception as e:
log_interactive.exception(
"piping from %s failed: %s" % (fd.name, e))
else:
if fd.exhausted():
exhausted.add(fd)
sources.remove(fd)
except KeyboardInterrupt:
pass
finally:
try:
for p in self.active_pipes:
p.stop()
finally:
self.thread_lock.release()
log_interactive.info("Pipe engine thread stopped.")
def run(self):
log_interactive.info("Pipe engine thread started.")
try:
for p in self.active_pipes:
p.start()
sources = self.active_sources
sources.add(self.__fdr)
exhausted = set([])
RUN = True
STOP_IF_EXHAUSTED = False
while RUN and (not STOP_IF_EXHAUSTED or len(sources) > 1):
fds, fdo, fde = select.select(sources, [], [])
for fd in fds:
if fd is self.__fdr:
cmd = os.read(self.__fdr, 1)
if cmd == "X":
RUN = False
break
elif cmd == "B":
STOP_IF_EXHAUSTED = True
elif cmd == "A":
sources = self.active_sources-exhausted
sources.add(self.__fdr)
else:
warning(
"Unknown internal pipe engine command: %r. Ignoring." % cmd)
elif fd in sources:
try:
fd.deliver()
except Exception, e:
log_interactive.exception(
"piping from %s failed: %s" % (fd.name, e))
else:
if fd.exhausted():
exhausted.add(fd)
sources.remove(fd)
except KeyboardInterrupt:
pass
finally:
try:
for p in self.active_pipes:
p.stop()
finally:
self.thread_lock.release()
log_interactive.info("Pipe engine thread stopped.")