Linux . How to let a Thread sleep for a period of time waiting for an event

[Douwe]

I'm trying to write a piece of C code that has two threads: The first
thread waits for a socket connection. The second thread is in a
continues cycle waiting for an period of time (lets say 500 ms) or an
incomming socket connection (received from the first thread). At this
moment I've created two threads were the first one is already waiting
for an incomming socket connection. I've also created a timer with
timer_create. My problem is that the second thread has to wait until
one of the events it is waiting for occurs. For completeness the
events are : an timer event or a message from the first thread that it
got an incomming socket connection.

Do I have to use a Semaphore here ... or do I have to use signals ...
or how do I solve this ???

help

 

[Joona I Palaste]

I'm trying to write a piece of C code that has two threads: The first
thread waits for a socket connection. The second thread is in a
continues cycle waiting for an period of time (lets say 500 ms) or an
incomming socket connection (received from the first thread). At this
moment I've created two threads were the first one is already waiting
for an incomming socket connection. I've also created a timer with
timer_create. My problem is that the second thread has to wait until
one of the events it is waiting for occurs. For completeness the
events are : an timer event or a message from the first thread that it
got an incomming socket connection.

Do I have to use a Semaphore here ... or do I have to use signals ...
or how do I solve this ???

help

Your problem is UNIX-specific and thus off-topic on comp.lang.c. Please
ask on comp.unix.programmer.

--
/-- Joona Palaste ([email protected]) ---------------------------\
| Kingpriest of "The Flying Lemon Tree" G++ FR FW+ M- #108 D+ ADA N+++|
| http://www.helsinki.fi/~palaste W++ B OP+ |
\----------------------------------------- Finland rules! ------------/
"Shh! The maestro is decomposing!"
- Gary Larson

 

[Randy Howard]

Your problem is UNIX-specific and thus off-topic on comp.lang.c. Please
ask on comp.unix.programmer.

Actually, comp.programming.threads is probably the better forum. POSIX
pthreads (the variety most likely to be used on Linux) is the primary
thread model discussed there.

OT: Lookup condition variables.

 

[Randy Howard]

Is that the name of it? I'm not seeing it listed on my news server (although
it not being carried is certainly a possibility). It certainly sounds
interesting.

That is the correct name. Ask your newsfeed to carry it. Failing that
you should be able to get to it here:

http://groups.google.com/groups?q=comp.programming.threads