Michael Rumpler wrote:
Package: libcommoncpp2-1.5-0
Version: 1.5.1-4
Severity: important
When using timers in a class derived from PosixThread, the method
onTimer() is not called when the timer expires, although the timer is
running. I wrote a minimal test software to reproduce this problem.
The problem does not arise on other systems (e.g. RHEL 4) with the
same commoncpp version. As far as i found out, it must have something to
do with the kernel version/c library or a combination of those.
on a system running kernel 2.6.9 it works, on a system with 2.6.11
it does no longer work... so far i did not try to run a debian etch system
with a 2.6.9 to verify, maybe you find the problem faster than me ;-)
The software starts a timer in the class derived from PosixThread and
continously reads the timer value to prove the timer is running.
If the onTimer() gets called the program makes happy outputs.
This call does not happen on Debian etch, but works on other distributions
with - as is my knowledge so far - kernels < 2.6.10.
My observations follows:
I'm running testing/unstable on Linux 2.6.18-3-k7, and onTimer isn't
called on my system since the main thread receives SIGALRM and not the
CiTimer thread. I can prevent this by using pthread_sigmask to block
SIGALRM in main.
sigset_t cancel, old;
sigemptyset(&cancel);
sigaddset(&cancel, SIGALRM);
pthread_sigmask(SIG_BLOCK, &cancel, &old);
Mikael
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
