watchdog

I would like to implement a simple watchdog timer in Python with two use cases: Watchdog ensures that a function doesn't execute longer than x seconds Watchdog ensures that certain regularly executed function does indeed execute at least every y seconds How do I do that? Sergiy Byelozyorov Just publishing my own solution to this: from threading import Timer class Watchdog: def __init__(self, timeout, userHandler=None): # timeout in seconds self.timeout = timeout self.handler = userHandler if userHandler is not None else self.defaultHandler self.timer = Timer(self.timeout, self.handler) self

Folks, I have a need to watch a log file for changes. After looking through stackoverflow questions, I see people recommending 'watchdog'. So i'm trying to test, and am not sure where to add the code for when files change: #!/usr/bin/python import time from watchdog.observers import Observer from watchdog.events import LoggingEventHandler if __name__ == "__main__": event_handler = LoggingEventHandler() observer = Observer() observer.schedule(event_handler, path='.', recursive=False) observer.start() try: while True: time.sleep(1) else: print "got it" except KeyboardInterrupt: observer.stop()

I am running function Foo from somebody else's library in a single-threaded application currently. Most of the time, I make a call to Foo and it's really quick, some times, I make a call to Foo and it takes forever. I am not a patient man, if Foo is going to take forever, I want to stop execution of Foo and not call it with those arguments. What is the best way to call Foo in a controlled manner (my current environment is POSIX/C++) such that I can stop execution after a certain number of seconds. I feel like the right thing to do here is to create a second thread to call Foo, while in my main

Hi can anybody tell me how to handle the software watchdog in linux .I have a program "SampleApplication" which runs continuously and I need to restart it if its hangs or closes unexpectedly. I was googling about this and found linux has watchdog at /dev/watchdog but dont know how to use it.Could someone help me with example. My question is where to I specify my application name and delay interval to restart . As I am new to linux please brief me with sample if possible. Thanks Most of the Unix/Linux init programs will manage daemons for you and restart them. Look into placing your service in

So I'm trying to set up a cron job as a sort of watchdog for a daemon that I've created. If the daemon errors out and fails, I want the cron job to periodically restart it... I'm not sure how possible this is, but I read through a couple of cron tutorials and couldn't find anything that would do what I'm looking for... My daemon gets started from a shell script, so I'm really just looking for a way to run a cron job ONLY if the previous run of that job isn't still running. I found this post , which did provide a solution for what I'm trying to do using lock files, not I'm not sure if there is

I need some way to monitor a desktop application and restart it if it dies. Initially I assumed the best way would be to monitor/restart the process from a Windows service, until I found out that since Vista Windows services should not interact with the desktop I've seen several questions dealing with this issue, but every answer I've seen involved some kind of hack that is discouraged by Microsoft and will likely stop working in future OS updates. So, a Windows service is probably not an option anymore. I could probably just create a different desktop/console application to do this, but that