src/winsup/cygwin ChangeLog thread.cc thread.h

[corinna@cygwin.com]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	corinna@sourceware.org	2009-01-20 12:40:31

Modified files:
	winsup/cygwin  : ChangeLog thread.cc thread.h 

Log message:
	* thread.h (struct pthread_rwlock::RWLOCK_READER): Add counter n.
	* thread.cc (pthread_rwlock::rdlock): If a thread already owns a
	read lock, just count the number of locks for it, per SUSv4.
	(pthread_rwlock::tryrdlock): Ditto.
	(pthread_rwlock::unlock): If a thread has more than one concurrent
	read locks, just count down.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/ChangeLog.diff?cvsroot=src&r1=1.4356&r2=1.4357
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/thread.cc.diff?cvsroot=src&r1=1.214&r2=1.215
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/thread.h.diff?cvsroot=src&r1=1.109&r2=1.110