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实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... ngx.exit(ngx.HTTP_OK);
end
ngx.sleep(1);
end
ngx.say("YES");
ngx.exit(ngx.HTTP_OK);
';
}
...
}
注：为了处理服务端不知道客户端何时断开连接的情况，代码中引入超时...
How to schedule a periodic task in Java?
...ecutor se = new ScheduledExecutor();
se.startAsync();
Thread.sleep(15000);
se.stopAsync();
}
}
If you have more services like this, then registering all services in ServiceManager will be good as all services can be started and stopped together. Read here for more on Service...
How to open a new tab using Selenium WebDriver?
...(tabs.get(1)); driver.get("https://www.stackoverflow.com"); Thread.sleep(2000); driver.switchTo().window(tabs.get(2)); driver.get("https://www.flipkart.com"); Thread.sleep(2000); driver.close(); driver.switchTo().window(tabs.get(1)); Thread.sleep(2000); d...
How do I restart a WPF application? [duplicate]
...ettings value so that when true it is reset to false and there is a Thread.Sleep(3000);
In your program you may have the logic:
if (ShouldRestartApp)
{
Properties.Settings.Default.IsRestarting = true;
Properties.Settings.Default.Save();
Application.Restart();
}
In Program.Main()
[STATh...
Defining a variable with or without export
...ve values copied when the subprocess is created:
$ export B="Bob"; echo '(sleep 30; echo "Subprocess 1 has B=$B")' | bash &
[1] 3306
$ B="Banana"; echo '(sleep 30; echo "Subprocess 2 has B=$B")' | bash
Subprocess 1 has B=Bob
Subprocess 2 has B=Banana
[1]+ Done echo '(sleep 30; echo "S...
Selenium WebDriver: Wait for complex page with JavaScript to load
...en your page is finished processing you need to add a delay: e.g. click(), sleep(0.5 sec), wait until (readyState='complete' & jQuery.active==0). If you don't add the sleep, the iQuery will not be active at the test time! (it took me some hours to find out, so I thought to share it)
...
What exactly are “spin-locks”?
...ge the process state from TASK_RUNNING into TASK_INTERRUPTIBLE (which is a sleeping state) and, thus, it does not save everything about that process (memory, cache and so on). instead, the spinning process is preempted, but it never quits the "immediately schedulable" processes: it is kept in memory...
How efficient is locking an unlocked mutex? What is the cost of a mutex?
...an not be obtained, a system call has to be performed to put the thread to sleep; that is obviously extremely slow (system calls are in the order of 10 mircoseconds). Normally that is not really a problem because that thread has to sleep anyway-- but it could be a problem with high contention where ...
Python speed testing - Time Difference - milliseconds
...lock() vs 0.06377 for time.time()
>>> start = time.clock(); time.sleep(1) ; print "process time: " + (time.clock() - start)
process time: 0.0
>>> start = time.time(); time.sleep(1) ; print "process time: " + (time.time() - start)
process time: 1.00111794472
In the second example...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
...HQ CPU (4 cores / 8 threads), 2x Samsung M471A2K43BB1-CRC RAM (2x 16GiB).
sleep
Non-busy sleep does not count in either user or sys, only real.
For example, a program that sleeps for a second:
#define _XOPEN_SOURCE 700
#include <stdlib.h>
#include <unistd.h>
int main(void) {
sle...