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关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...该模式的一个实现,socket即是一种特殊的文件,一些socket函数就是对其进行的操作(读/写IO、打开、关闭) 既然Unix/Linux是将socket以一种io的形式来编程实现,那对于socket的研究必然有几个概念要理解: 1、阻塞/非阻塞:这两个...
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Are there any O(1/n) algorithms?

...ng one: def get_faster(list): how_long = (1 / len(list)) * 100000 sleep(how_long) Clearly, this function spends less time as the input size grows … at least until some limit, enforced by the hardware (precision of the numbers, minimum of time that sleep can wait, time to process argumen...
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Wait until file is unlocked in .NET

.../ Wait for the lock to be released System.Threading.Thread.Sleep(500); } } Log.LogTrace("WaitForFile {0} returning true after {1} tries", fullPath, numTries); return true; } ...
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CS0120: An object reference is required for the nonstatic field, method, or property 'foo'

... i > 0; i--) { result += i; System.Threading.Thread.Sleep(1000); } Form1 frm1 = new Form1(); frm1.setTextboxText(result); } Passing in an instance of Form1 would be an option also. Make the calling method a non-static instance method (of Form1): private void Sum...
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vbscript output to console

...LCase(WScript.StdIn.ReadLine) End Function Function wait(n) WScript.Sleep Int(n * 1000) End Function Function ForceConsole() If InStr(LCase(WScript.FullName), vbsInterpreter) = 0 Then oWSH.Run vbsInterpreter & " //NoLogo " & Chr(34) & WScript.ScriptFullName & Ch...
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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...
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How does facebook, gmail send the real time notification?

... perhaps like the following pseudocode: while(!has_event_happened()) { sleep(5); } echo json_encode(get_events()); The has_event_happened function would just check if anything had happened in an events table or something, and then the get_events function would return a list of the new rows i...
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Do C# Timers elapse on a separate thread?

... static void timer_Elapsed(object sender, ElapsedEventArgs e) { Thread.Sleep(2000); Debug.WriteLine(Thread.CurrentThread.ManagedThreadId); } you will get something like this 10 6 12 6 12 where 10 is the calling thread and 6 and 12 are firing from the bg elapsed event. If you remove the ...
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Full examples of using pySerial package [closed]

...cond before reading output (let's give device time to answer) time.sleep(1) while ser.inWaiting() > 0: out += ser.read(1) if out != '': print ">>" + out share ...
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java: run a function after a specific number of seconds

... you could use the Thread.Sleep() function Thread.sleep(4000); myfunction(); Your function will execute after 4 seconds. However this might pause the entire program... shar...