class SipLogger(object):
app = None
call_id = None
level = None
write = None
logfile = None
discarded = 0
pid = None
logger = None
signal_handler = None
def __init__(self, app, call_id="GLOBAL", logfile="/var/log/sip.log"):
self.app = "/%s" % app
self.call_id = call_id
bend = os.environ.get("SIPLOG_BEND", "stderr").lower()
if bend == "stderr":
self.write = self.write_stderr
elif bend == "none":
self.write = self.donoting
else:
self.write = self.write_logfile
self.wi_available = Condition()
self.wi = []
if bend != "syslog":
self.logger = AsyncLogger(app, self)
self.logfile = os.environ.get("SIPLOG_LOGFILE_FILE", logfile)
self.signal_handler = LogSignal(self, SIGUSR1, self.reopen)
else:
self.logger = AsyncLoggerSyslog(app, self)
self.app = ""
self.level = eval("SIPLOG_" + os.environ.get("SIPLOG_LVL", "INFO"))
def donoting(self, *args, **kwargs):
pass
def write_stderr(self, *args, **kwargs):
if kwargs.get("level", SIPLOG_INFO) < self.level:
return
sys.__stderr__.write(self.format(args, kwargs))
def write_logfile(self, *args, **kwargs):
if kwargs.get("level", SIPLOG_INFO) < self.level:
return
discarded = False
self.wi_available.acquire()
if len(self.wi) > 1000:
# Discard some items, as the writer doesn't seems to be able
# to keep up pace with incoming requests
self.discarded += len(self.wi) - 1000
self.wi = self.wi[-1000:]
discarded = True
self.wi.append(("write", args, kwargs))
self.wi_available.notify()
self.wi_available.release()
if discarded and self.discarded % 1000 == 0:
print "SipLogger: discarded %d requests, I/O too slow" % self.discarded
def format(self, args, kwargs):
ltime = kwargs.get("ltime", None)
if ltime == None:
ltime = time()
call_id = kwargs.get("call_id", self.call_id)
if self.pid != None:
pid = "[%d]" % self.pid
else:
pid = ""
return "%s.%.3d/%s%s%s: %s\n" % (
strftime("%d %b %H:%M:%S", localtime(ltime)),
(ltime % 1) * 1000,
call_id,
self.app,
pid,
reduce(lambda x, y: x + y, [str(x) for x in args]),
)
def reopen(self, signum=None):
self.wi_available.acquire()
self.wi.append(("reopen", None, None))
self.wi_available.notify()
self.wi_available.release()
def shutdown(self):
if self.logger == None:
return
if self.signal_handler != None:
self.signal_handler.calcel()
self.signal_handler = None
self.logger.shutdown()
self.logger = None