Re: problem with pthread_mutex_timedlock

Hans Juergen Gamauf wrote:
Hello,

I want to use this function to lock a resource, but with a timeout

and that is the problem, the function returns immediately after calling,
and if the lock was not free, it returns the error code 110, but I have
no idea what this error code means, I've found nothing in the man-pages
or anywhere else

Can anyone help me?

I'm using 2.6.15 under a special glibc/busybox distribution for an
arm9-core, but I have the same effect under Kubuntu 6.06


here is my code:
-------------------------------------
struct timespec deltatime;
deltatime.tv_sec = 3;
deltatime.tv_nsec = 0;

int err_code = pthread_mutex_timedlock(
&_mutexLogfile, &deltatime );


if (err_code != 0)
{

cout << "Locking returns " << err_code << endl;
THROW_EX("Logfile Mutex locked!");

}

---------------------------------------

Thank you in advance!

Hans


The timeout is an 'absolute time', not a relative time (per
the 'man' page).

So you want the current time + 3 seconds in the timer.

.

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