def start(self):
'''Maps to the CLI command and starts one or more Wishbone processes in background.
'''
router_config = ConfigFile(self.config, 'SYSLOG').dump()
pid_file = PIDFile(self.pid)
with DaemonContext(stdout=sys.stdout,
stderr=sys.stderr,
detach_process=True):
if self.instances == 1:
sys.stdout.write("\nWishbone instance started with pid %s\n" %
(os.getpid()))
sys.stdout.flush()
pid_file.create([os.getpid()])
self.initializeRouter(router_config)
else:
for instance in range(self.instances):
self.routers.append(
gipc.start_process(self.initializeRouter,
args=(router_config, ),
daemon=True))
pids = [str(p.pid) for p in self.routers]
print(("\nInstances started in foreground with pid %s\n" %
(", ".join(pids))))
pid_file.create(pids)
self.bootstrapBlock()
def start(self, command, config, instances, pid, queue_size, frequency, identification):
'''
Handles the Wishbone start command.
'''
config = self.config.load(config)
self.pid = PIDFile(pid)
if instances == 1:
print ("Starting 1 instance to background with pid %s." % (os.getpid()))
try:
with DaemonContext(stdout=sys.stdout, stderr=sys.stderr, files_preserve=self.__getCurrentFD(), detach_process=True):
self.pid.create([os.getpid()])
instance = RouterBootstrap(config, debug=False, queue_size=queue_size, frequency=frequency, identification=identification)
instance.start()
except Exception as err:
sys.stdout.write("Failed to start instance. Reason: %s\n" % (err))
else:
try:
print "Starting %s instances in background." % (instances)
with DaemonContext(stdout=sys.stdout, stderr=sys.stderr, files_preserve=self.__getCurrentFD(), detach_process=True):
pids = []
processes = []
for counter in xrange(instances):
processes.append(RouterBootstrapProcess(config, debug=False, queue_size=queue_size, frequency=frequency, identification=identification))
processes[-1].start()
pids.append(processes[-1].pid)
self.pid.create(pids)
for process in processes:
process.join()
except Exception as err:
sys.stdout.write("Failed to start instance. Reason: %s\n" % (err))
def stop(self):
'''Maps to the CLI command and stop the running Wishbone processes.
'''
try:
pid = PIDFile(self.pid)
sys.stdout.write("Stopping instance with PID ")
sys.stdout.flush()
for entry in pid.read():
sys.stdout.write(" %s " % (entry))
sys.stdout.flush()
pid.sendSigint(entry)
pid.cleanup()
print("")
except Exception as err:
print("")
print(("Failed to stop instances. Reason: %s" % (err)))
def stop(self, command, pid):
'''
Handles the Wishbone stop command.
'''
try:
pid = PIDFile(pid)
sys.stdout.write("Stopping instance with PID ")
sys.stdout.flush()
for entry in pid.read():
sys.stdout.write(" %s " % (entry))
sys.stdout.flush()
pid.sendSigint(entry)
pid.cleanup()
print("")
except Exception as err:
print ("")
print ("Failed to stop instances. Reason: %s" % (err))
