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How to remove all callbacks from a Handler?
... want
}
};
Call post delayed:
handler.postDelayed(runnable, sleep_time);
Remove your callback from your handler:
handler.removeCallbacks(runnable);
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...
Python subprocess.Popen “OSError: [Errno 12] Cannot allocate memory”
...mory footprint is minimal), to spawn a shell script that then runs free/ps/sleep and whatever else in a loop parallel to your script; poll the script's output or read it synchronously, possibly from a separate thread if you have other stuff to take care of asynchronously -- do your data crunching in...
Is there hard evidence of the ROI of unit testing?
... the test code has been changed very little. It is, however, what lets me sleep well at night and the thing that allows me to tell the customer that I have confidence that I can implement the Y functionality without breaking the system.
Perhaps in academia there is evidence, but I've never worked ...
Catch an exception thrown by an async void method
...ifferent after you did initiate the async operations. It might call Thread.Sleep or even terminate. As long as there is one foreground thread left your application will happily continue to execute asynchronous tasks.
You can handle the exception inside the async method after your asynchronous op...
How to redirect output with subprocess in Python?
...mp4 > file'
proc = subprocess.Popen(shlex.split(size), shell=True)
time.sleep(1)
proc.terminate() #proc.kill() modify it by a suggestion
size = ""
with open('file', 'r') as infile:
for line in infile.readlines():
size += line.strip()
print(size)
os.remove('file')
When you use subpr...
How to show all shared libraries used by executables in Linux?
...raries opened with dlopen, tested with this minimal setup hacked up with a sleep(1000) on Ubuntu 18.04.
See also: https://superuser.com/questions/310199/see-currently-loaded-shared-objects-in-linux/1243089
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Handler is abstract ,cannot be instantiated
...
public void downloadFile(){
try{
TimeUnit.SECONDS.sleep(1);
}
catch (InterruptedException e){
e.printStackTrace();
};
}
}
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...
What is a semaphore?
...le.WriteLine("Guest {0} is doing some dancing.", args);
Thread.Sleep(500);
// Let one guest out (release one semaphore).
Console.WriteLine("Guest {0} is leaving the nightclub.", args);
Bouncer.Release(1);
}
}
}
...
How to compare times in Python?
...t; import time
>>> a = datetime.datetime.now()
>>> time.sleep(2.0)
>>> b = datetime.datetime.now()
>>> print a < b
True
>>> print a == b
False
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Can local storage ever be considered secure? [closed]
...
@ircmaxell If you sleep with dogs you can't expect not to wake up with fleas. If the user installs a malware add on that's just the same as the user installing a virus on their PC, it's no different from it. Your Java or C program can be as se...