Stack Overflow
Stack Overflow

Questions tagged [sleep]

sleep is a system call that suspends a process or thread for a specified amount of time

3187 questions
1
vote
1 answer

Temporarly Prevent Forced Sleep on Mac OS X through Python/Terminal

How can one disable forced sleep (sleep caused by the user - often by closing lid/pressing Sleep under the apple menu) through Terminal, preferably with a Python script, on OS X? I would like to be able to run the following or similiar... import…
The Novice
  • 124
  • 9
1
vote
3 answers

C sleep method obstructs output to console

I have a C program, where I just wanted to test if I could reproduce a console spinner used in npm install while it installs a module. This particular spinner simply spins in this order: | / - \ on the same space, so I use the following…
Patrick Roberts
  • 49,224
  • 10
  • 102
  • 153
1
vote
1 answer

regarding sleep command in c++

I am trying to delay the program using sleep command. But when I print the results, I don't see the delay. Am I missing something . #include #include #include #include #include // for time…
user2532296
  • 828
  • 1
  • 10
  • 27
1
vote
2 answers

Is it possible to sleep in granularity of microseconds in linux kernel?

Is it possible to sleep in granularity of microseconds in linux kernel ? From what i know, there is msleep() which can sleep in milliseconds and there is udelay() which busy waits for time in microsecond granularity. But I need to sleep ( not busy…
Chinna
  • 3,930
  • 4
  • 25
  • 55
1
vote
2 answers

Execute code after some time without using sleep in Python?

I am writing code for an LCD screen using Python and I want it to display a flashing 'Press SELECT' message until a button on the LCD is pressed. The problem is that while the program is in sleep, it does not register the user pressing the button,…
quelqu_un
  • 13
  • 2
1
vote
3 answers

Waiting for invokeLater() to be called

Is there a more elegant way to do what I'm doing below? That is, is there a more elegant way than polling and sleeping, polling and sleeping, and so on to know when a Runnable.run() method has been called via invokeLater()? private int myMethod()…
Paul Reiners
  • 8,576
  • 33
  • 117
  • 202
1
vote
1 answer

Is there a race condition when manually put process into sleep

When I read ldd3 chapter 6, I was confused by the codes which is shown below: while (spacefree(dev) == 0) { /* full */ DEFINE_WAIT(wait); up(&dev->sem); if (filp->f_flags & O_NONBLOCK) return -EAGAIN; PDEBUG("\"%s\" writing:…
Douglas Su
  • 3,214
  • 7
  • 29
  • 58
1
vote
1 answer

How do you "sleep" in an AnyEvent callback without pausing the whole script?

I'm specificaly using AnyEvent::Inotify::Simple (using EV as backend) to monitor file events. So I have a handler callback that in a particular case, I need to "pause" before continuing. sleep obviously halts everything (so other events don't get…
FunkyShu
  • 138
  • 5
1
vote
4 answers

Delay routine in Swing on button click which should not stall the application

I am trying to do the following: click a button, button disappears for 2 seconds, text appears for 2 seconds and after those 2 seconds the visibility is reversed. So far I have done this: btnScan.addActionListener(new ActionListener(){ …
deadpixels
  • 769
  • 1
  • 12
  • 21
1
vote
2 answers

sleep in for loop for total iteration time of 2 minutes

I have a for loop inside a while (1) and I want the loop to average approx 2 minutes through each entire for loop cycle. This requires sleeping between each iteration for a different time based on execution time of the iteration and time remaining…
sjohnson
  • 69
  • 2
  • 13
1
vote
2 answers

Is there a blocking version of "Sleep"? (ahk)

I have a hotkey that I press repeatedly quite fast and I included a Sleep in the routine to throttle it a bit. But when I go at faster speeds the output starts to mess up. The culprit is definitely the sleep because when I take it out and let it…
Jpaji Rajnish
  • 1,491
  • 4
  • 17
  • 35
1
vote
1 answer

sleep vs SIG_ALARM usage and CPU performance

When should I use sleep() and a reconfiguration of SIG_ALRM? For example, I'm thinking of scheduling some task at some specific time. I could spawn a thread with an sleep() call inside and when sleep() returns, do some task, or I could specify a…
vicaba
  • 2,836
  • 1
  • 27
  • 45
1
vote
1 answer

PHP Sleep function With While Loop

I am using Ubuntu Server 14.04 I have some issue in my script ...script give me response very well if i use die instead of sleep after echo in else condition but when i use sleep(3600) after echo in else condition it is not giving me any response…
Hafiz Atta Ur Rahman
  • 33
  • 1
  • 2
  • 9
1
vote
1 answer

Inconsistent sleep behavior when using AudioClip in Java

I am writing Ukelele Simulator, and I want to play a note on each string with a short delay in between. Currently, I have a method that returns an AudioClip containing the sound of the currently pressed note on each string, and I am attempting to…
GoatFood
  • 25
  • 1
  • 4
1
vote
1 answer

Sending data periodically from client to server in C

I am creating a multithreaded socket program that needs to send 2 sets of data to the server periodically. The client needs to send GPS information every 3 seconds and polarity information every 4 seconds. My idea on implementing this was to simply…
marcusc
  • 21
  • 4
1 2 3
…
99
100