Created
August 27, 2016 21:30
-
-
Save chuyskywalker/74d1c74825b41f6255ede888300b8a8b to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import time | |
import logging | |
import pprint | |
import random | |
from threading import Thread, Event | |
class lastPerThread(logging.Handler): | |
""" | |
A log handler which keeps the last log message availble per thread | |
""" | |
def __init__(self): | |
""" | |
Initialize the handler, seutp our dict to hold messages | |
""" | |
logging.Handler.__init__(self) | |
self.lastMessages = {} | |
self.level = logging.DEBUG | |
def flush(self): | |
""" | |
no-op | |
""" | |
def emit(self, record): | |
""" | |
Keep the lastMessage list up-to-date | |
""" | |
try: | |
self.lastMessages[record.thread] = record | |
except (KeyboardInterrupt, SystemExit): | |
raise | |
except: | |
self.handleError(record) | |
def current(self): | |
""" | |
Return all the latest logs per thread | |
""" | |
return self.lastMessages | |
def logloop(): | |
while True: | |
time.sleep(2) | |
log.info('sleepy thread! ' + str(random.getrandbits(4))) | |
def logoutputter(handler): | |
while True: | |
time.sleep(5) | |
logs = handler.current() | |
for i, msg in logs.iteritems(): | |
print handler.format(msg) | |
logging.basicConfig(format='%(asctime)s [%(threadName)16s][%(module)14s][%(levelname)8s] %(message)s') | |
log = logging.getLogger() | |
log.setLevel(logging.DEBUG) | |
def main(): | |
handler = lastPerThread() | |
handler.setFormatter(logging.Formatter(' %(asctime)s [%(threadName)16s][%(module)14s][%(levelname)8s] %(message)s')) | |
log.addHandler(handler) | |
t = Thread(target=logoutputter, name='logoutputter', args=(handler,)) | |
t.daemon = True | |
t.start() | |
t = Thread(target=logloop, name='logloop') | |
t.daemon = True | |
t.start() | |
time.sleep(2) | |
t = Thread(target=logloop, name='logloop2') | |
t.daemon = True | |
t.start() | |
while True: | |
time.sleep(2) | |
log.info('sleepy main!') | |
if __name__ == '__main__': | |
main() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment