[q-lang-cvs] q ChangeLog,1.330,1.331

[Albert G. <ag...@us...>]

Update of /cvsroot/q-lang/q
In directory sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv12922

Modified Files:
	ChangeLog 
Log Message:
update ChangeLog

Index: ChangeLog
===================================================================
RCS file: /cvsroot/q-lang/q/ChangeLog,v
retrieving revision 1.330
retrieving revision 1.331
diff -C2 -d -r1.330 -r1.331
*** ChangeLog	21 Feb 2008 08:25:16 -0000	1.330
--- ChangeLog	22 Feb 2008 11:34:00 -0000	1.331
***************
*** 1,2 ****
--- 1,21 ----
+ 2008-02-22  Albert Graef  <Dr....@t-...>
+ 
+ 	* modules/clib/clib.c: bugfix: timeout for await is specified in
+ 	seconds, not milliseconds
+ 
+ 	new: allow timeouts to be specified with try function on mutexes
+ 	and semaphores
+ 
+ 	This allows mutexes and semaphores to be locked/read with an
+ 	absolute timeout value, using try (MUTEX,TIME) or try (SEM,TIME)
+ 	instead of just try MUTEX or try SEM. This works analogously to
+ 	await (COND,TIME) which has always been available.
+ 
+ 	NOTE: The new try timeout functionality is only available on newer
+ 	systems which already have the pthread_mutex_timedlock and
+ 	sem_timedwait routines in the POSIX threads library. Otherwise the
+ 	timeout value will just be ignored, i.e., the routines will return
+ 	immediately (as if no timeout value was specified).
+ 
  2008-02-21  Albert Graef  <Dr....@t-...>