Delayed Events

Subject: Delayed Events
From: Angelo Fraietta <email@hidden>
Date: Tue, 21 Sep 2004 11:01:56 +1000
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I originally developed an application in Jaguar (using GCC) that used events and threads. I had the event working so it would wait for an event for a period of time, and if it did not receive it, it would return false.

wait_ret = pthread_cond_timedwait(&_eventId, &count_mutex, &tv);

The thread could be released by another thread as follows

pthread_mutex_lock(&count_mutex);
pthread_cond_signal(&_eventId);
pthread_mutex_unlock(&count_mutex);

This all worked fine until I upgraded to Panther. Now what happens is that the thread that is waiting for the event does not continue immediately after receiving the event.

For example, if I had the thread wait for 2 seconds for the event and had the other thread set the event after half a second, the thread that waited for the event does not continue immediately. The call to pthread_cond_timedwait, however, returns successful.

My code is compiled as part of a JNI library being called by a Java GUI

Any suggestions?

--
Angelo Fraietta

PO Box 859
Hamilton NSW 2303

Home Page


http://www.users.bigpond.com/angelo_f/

There are those who seek knowledge for the sake of knowledge - that is CURIOSITY
There are those who seek knowledge to be known by others - that is VANITY
There are those who seek knowledge in order to serve - that is LOVE
   Bernard of Clairvaux (1090 - 1153)

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