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What is a daemon thread in Java?
...s) {
new WorkerThread().start();
try {
Thread.sleep(7500);
} catch (InterruptedException e) {
// handle here exception
}
System.out.println("Main Thread ending") ;
}
}
class WorkerThread extends Thread {
public WorkerTh...
Is there a way to get element by XPath using JavaScript in Selenium WebDriver?
...
For something like $x from chrome command line api (to select multiple elements) try:
var xpath = function(xpathToExecute){
var result = [];
var nodesSnapshot = document.evaluate(xpathToExecute, document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null );
for ( var i=0 ...
Java executors: how to be notified, without blocking, when a task completes?
...d message: " + msg);
}
}
class ExampleService {
String work() {
sleep(7000, TimeUnit.MILLISECONDS); /* Pretend to be busy... */
char[] str = new char[5];
ThreadLocalRandom current = ThreadLocalRandom.current();
for (int idx = 0; idx < str.length; ++idx)
str[idx] = (ch...
Remove and Replace Printed items [duplicate]
...ange (0,5):
b = "Loading" + "." * x
print (b, end="\r")
time.sleep(1)
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What is the Swift equivalent of respondsToSelector?
... NSObject
{
func work() { }
func eat(food: AnyObject) { }
func sleep(hours: Int, minutes: Int) { }
}
let worker = Worker()
let canWork = worker.respondsToSelector(Selector("work")) // true
let canEat = worker.respondsToSelector(Selector("eat:")) // true
let canSleep = worker.respo...
What is the difference between mutex and critical section?
...
The 'fast' Windows equal of critical selection in Linux would be a futex, which stands for fast user space mutex. The difference between a futex and a mutex is that with a futex, the kernel only becomes involved when arbitration is required, so you save the over...
How to calculate time elapsed in bash script?
... after unset SECONDS it is gone: echo $SECONDS; unset SECONDS; SECONDS=0; sleep 3; echo $SECONDS
– Tino
Dec 15 '15 at 7:28
7
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How do I abort/cancel TPL Tasks?
... {
// do some heavy work here
Thread.Sleep(100);
if (ct.IsCancellationRequested)
{
// another thread decided to cancel
Console.WriteLine("task canceled");
break;
...
What is the best way to ensure only one instance of a Bash script is running? [duplicate]
...ile, it will surely die, but processes fork()+exec()-ed from it (like your sleep did) inherit copies of open file descriptors along with flock() locks. Killing the script while sleep is sleeping won't unlock, because sleep process is still holding the lock. For lockable script it's important, becaus...
How should I log while using multiprocessing in Python?
...es on-the-fly from all pipes, into a central log file. (E.g., Periodically select from the pipes' file descriptors, perform merge-sort on the available log entries, and flush to centralized log. Repeat.)
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