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Difference between events and delegates and its respective applications [closed]
...iteLine("I'm still running");
animal.Run = () => Console.WriteLine("I'm sleeping") ;
with the last line of code I had override the previous behaviors just with one missing + (I have used + instead of +=)
Another weak spot is that every class that use your Animal class can raise RaiseEvent jus...
NSDefaultRunLoopMode vs NSRunLoopCommonModes
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A run loop is a mechanism that allows the system to wake up sleeping threads so that they may manage asynchronous events. Normally when you run a thread (with the exception of the main thread) there is an option to start the thread in a run loop or not. If the thread runs some sort or...
How exactly does __attribute__((constructor)) work?
...ctions to debug the problem). Then run LD_PRELOAD=./test_code numactl -N 0 sleep 1. You will see that the constructor is called twice but destructor only once.
– B Abali
Aug 9 '19 at 13:41
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What's the difference between echo, print, and print_r in PHP?
... the inaccuracies identified in these comments. Thanks all, I must've been sleeping on Jun 7 '10. ;-)
– John Kugelman
Sep 24 '11 at 2:24
8
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Resumable downloads when using PHP to send the file?
...ed));
flush();
ob_flush();
sleep(1);
}
fclose($fp);
return((connection_status() == 0) and ! connection_aborted());
}
/* Implementation */
// downloadFile('path_to_file/1.mp3', '1.mp3', 1024,...
How to open, read, and write from serial port in C?
...cking
write (fd, "hello!\n", 7); // send 7 character greeting
usleep ((7 + 25) * 100); // sleep enough to transmit the 7 plus
// receive 25: approx 100 uS per char transmit
char buf [100];
int n = read (fd, buf, sizeof buf); // read up t...
What is the difference between a thread and a fiber?
...by the kernel, although a kernel thread can voluntarily release the CPU by sleeping if it wants. A kernel thread has the advantage that it can use blocking I/O and let the kernel worry about scheduling. It's main disadvantage is that thread switching is relatively slow since it requires trapping i...
Quick-and-dirty way to ensure only one instance of a shell script is running at a time
...m -f ${LOCKFILE}; exit" INT TERM EXIT
echo $$ > ${LOCKFILE}
# do stuff
sleep 1000
rm -f ${LOCKFILE}
The trick here is the kill -0 which doesn't deliver any signal but just checks if a process with the given PID exists. Also the call to trap will ensure that the lockfile is removed even when ...
Code for decoding/encoding a modified base64 URL
...n for Xamarin without having to pull in a library.
– Sleeping_Giant
Aug 2 '18 at 16:43
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async/await - when to return a Task vs void?
...id AsyncMethod2(int num)
{
await Task.Factory.StartNew(() => Thread.Sleep(num));
}
Yes, use async and await here, they make sure your method still works correctly if an exception is thrown.
for more information see: http://msdn.microsoft.com/en-us/magazine/jj991977.aspx
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