C++ timer needed

[Jumpem]

Is there a built in library or function for a timer in C++? I want to have something that can wait x number of seconds, call a function, and be reset.

Any help would be

 

[singh]

Are you looking for a solution on a particular OS?

 

[icelazer]

sleep?

 

[Sureshot324]

google time.h

 

[Jumpem]

Originally posted by: singh
Are you looking for a solution on a particular OS?

Linux/Solaris

 

[Jumpem]

Originally posted by: Sureshot324
google time.h

That's what I am looking at now.

 

[xtknight]

usleep() under Linux.

 

[singh]

Originally posted by: Jumpem

Originally posted by: singh
Are you looking for a solution on a particular OS?

Linux/Solaris

man nanosleep.

 

[Jumpem]

It looks like I will need to come up with a way to have a timer in another thread or something. I can't have it blocking forever.

Right now I have:

bool = true;
while(bool)
{
//wait 60 seconds
//do work
}

I set that bool to false when I get another input, but the program stays in this while loop forever.

 

[singh]

Why can't you have it blocking? Does the program have to do something in the background?

 

[beyonddc]

In the class where the loop is located, add a function named something like "void stopLooping();"
And have another class to spawn a thread where the loop is located, then at certain time, you can invoke the stopLooping() function on it.

 

[OCedHrt]

clock_t start = clock();
while(bool && (double) (clock() - start) / CLK_TCK < 60)
{
// do work
}

 

[Jumpem]

Originally posted by: singh
Why can't you have it blocking? Does the program have to do something in the background?

Yes. It still needs to read messages from a socket and process them.

 

[xtknight]

I'm confused. So one thread has sockets reading messages and the other one is waiting?! Waiting for what?

 

[CTho9305]

alarm might do what you want. Google sigalrm or read the alarm man page for details.

 

[oog]

do a blocking read on the socket, and a sleep on the other thread.

 

[Jumpem]

Originally posted by: xtknight
I'm confused. So one thread has sockets reading messages and the other one is waiting?! Waiting for what?

I have a tthread that reads messages from a socket a nd processes them. If a certain message Id is encountered I need send a certain response message every 60 seconds. So the main thread has to keep processing messages while the timer is going.