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Push Notifications in Android Platform
...emClock.elapsedRealtime()); try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
}
Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
sendNotification(extras.getString("mess...
Command to get time in milliseconds
...liseconds:
#!/bin/sh
read up rest </proc/uptime; t1="${up%.*}${up#*.}"
sleep 3 # your command
read up rest </proc/uptime; t2="${up%.*}${up#*.}"
millisec=$(( 10*(t2-t1) ))
echo $millisec
The output is:
3010
This is a very cheap operation, which works with shell internals and procfs.
...
select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
...有不同的等待队列，对于tcp_poll来说，其等待队列是sk->sk_sleep（注意把进程挂到等待队列中并不代表进程已经睡眠了）。在设备收到一条消息（网络设备）或填写完文件数据（磁盘设备）后，会唤醒设备等待队列上睡眠的进程，...
Java: notify() vs. notifyAll() all over again
...one of threads is notified to wake up, execute the next job and go back to sleep.
Use notifyAll() for other cases where the waiting threads may have different purposes and should be able to run concurrently. An example is a maintenance operation on a shared resource, where multiple threads are waiti...
Can local storage ever be considered secure? [closed]
...
@ircmaxell If you sleep with dogs you can't expect not to wake up with fleas. If the user installs a malware add on that's just the same as the user installing a virus on their PC, it's no different from it. Your Java or C program can be as se...
Play a Sound with Python [duplicate]
...it()
pygame.mixer.music.load("test.wav")
pygame.mixer.music.play()
time.sleep(10)
This also plays .mp3 files.
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Shell script to send email [duplicate]
...would of course be to pipe the output into mail:
vs@lambda:~$ cat test.sh
sleep 3 && echo test | mail -s test your@address
vs@lambda:~$ nohup sh test.sh
nohup: ignoring input and appending output to `nohup.out'
I guess sh test.sh & will do just as fine normally.
...
Spring Boot application as a Service
... pkill -f $APP_NAME.jar > /dev/null 2>&1
fi
sleep 1s
done
}
case $1 in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
esac
exit 0
When stopping, it will attempt to use Spring Boot Actuator to perform a controlled shutdown. However, in case ...
What is a mutex?
...n-reentrant resources here.
// Simulate some work.
Thread.Sleep(500);
Console.WriteLine("{0} is leaving the protected area",
Thread.CurrentThread.Name);
// Release the Mutex.
mut.ReleaseMutex();
Console.WriteLine("{0} has released the m...
Is there a way to check if a file is in use?
...er turns out to be a bit heavy for this case, I would go for the try/catch/sleep loop.
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