sleep

问题 I don't know how to make this. There is an XML Api server and I'm getting contents with cURL; it works fine. Now I have to call the creditCardPreprocessors state. It has 'in progress state' too and PHP should wait until the progess is finished. I tried already with sleep and other ways, but I can't make it. This is a simplified example variation of what I tried: function process_state($xml){ if($result = request($xml)){ // It'll return NULL on bad state for example return $result; } sleep(3);

问题 Hey guys I seem to be lost. I am supposed to be able to increment a count in a child inside an infinite loop, and to have the count be printed every time the parent sends a signal, which should be every 1 second. I wrote my code but I thought that after using fork, the child and parent processes run at the same time, however this is not the case so I'm not sure how to tackle this problem. Any help would be great 回答1: What you are describing should work in theory. Writing parallel code can be

问题 Ok so I have been playing with VB.net and brainstorming ways to accomplish launching a thread reliably every 60 seconds reguardless of how long the prior thread took to do it's work. Here is my question. Given the following code: Dim intTemp As Integer intTemp = 2 Do While intTemp > 1 Dim objWriter As New System.IO.StreamWriter("C:\Documents\Visual Studio 2010\Projects\Report\Report\Stream.txt", True) intTemp = intTemp + 1 System.Threading.Thread.Sleep(5000) objWriter.Write(intTemp & " " &

问题 Ok so I have been playing with VB.net and brainstorming ways to accomplish launching a thread reliably every 60 seconds reguardless of how long the prior thread took to do it's work. Here is my question. Given the following code: Dim intTemp As Integer intTemp = 2 Do While intTemp > 1 Dim objWriter As New System.IO.StreamWriter("C:\Documents\Visual Studio 2010\Projects\Report\Report\Stream.txt", True) intTemp = intTemp + 1 System.Threading.Thread.Sleep(5000) objWriter.Write(intTemp & " " &

问题 I'm working on a timing system and I'll implement a timer class. #include <windows.h> #include <stdio.h> #include <time.h> int main() { clock_t t1, t2; t1 = clock(); Sleep(10); t2 = clock(); printf("%i\n", (int)(t2 - t1)); return 0; } This program should print "10" but it prints "15" or "16". I need more accurate which is less than 1 ms! Suggestions? (maybe with select()'s timeout?) NOTE: I've run this program on Windows 7 Ultimate x86. Program compiled with MinGW (C/C++) x86. NOW I THINK >>

问题 I am wondering how is sleep/nanosleep internally implemented? Consider this code: { // on a thread other than main() thread while(1) { //do something sleep(1); } } would the CPU be doing constant context switching to check if sleep of 1 sec is done (i.e. an internal busy wait). I doubt it works this way, too much inefficiency. But then how does it work? Same question applies to nanosleep. Note: If this is implementation/OS specific, then how can I possibly implement a more efficient scheme

问题 I have been thinking to do a sleep function where it sleeps until a certain date is called. My idea was based of date such as : 2019-01-20 12:00:00. I haven't really figured out how to start to solve this problem. My idea was something similar such as if there is a date given: time.sleep(until the date and time) So the question is how can I possibly be able to sleep until a certain time given in a value of 2019-01-20 12:00:00? 回答1: Easy, calculate how long it is, and sleep the time. You can

问题 I have a program that is representing a car making factory. A queue holds the car parts to be made, each number represents a different part of the car, ex. 4 is window, we need 7 windows: queue(^: front, *: rear): [0^, 1, 2, 3, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 7*] num_workers represent the number of workers who can work parallely(threads). This is the part of the main where I call the thread function. int num_work = num_cars * NUM_PARTS; int k=0; while(k<num_work){ for(int i=0;i<num

问题 I made a Desktop Notification it shows a notification every 1 minute. After 10 second, closes itself. I gone for a lunch , then computer goes to sleep. When i was back i wake my computer then lots of notification starts. How can i handle that problem? I want if computer sleeps it shouldnt show notification. How can i control it? Background.js function show() { var notification = webkitNotifications.createHTMLNotification( 'notification.html' ); notification.show(); } // Conditionally

问题 As per this question, Thread.sleep is not necessarily guaranteed to sleep for the duration you specify: it may be shorter or longer. If you read the documentation for Thread.sleep, you'll see there are no strong guarantees over the exact duration which will be slept. It specifically states the duration is subject to the precision and accuracy of system timers and schedulers which is (intentionally) vague but hints that the duration should not be relied upon too heavily. The granularity of