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authorrpj <rpj>2005-06-03 08:32:43 +0000
committerrpj <rpj>2005-06-03 08:32:43 +0000
commit15f1b0bc1f4feeca60ca1dda769928822d6c032a (patch)
tree26a3693fd7058745a2bd76e8c086dc4d16656049 /ChangeLog
parent1908d93b42b01cea49c886e2260fd70ac05becf7 (diff)
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+2005-05-13 Ross Johnson <ross at callisto.canberra.edu.au>
+
+ * pthread_kill.c (pthread_kill): Remove check for Win32 thread
+ priority (to confirm HANDLE validity). Useless since thread HANDLEs
+ a not recycle-unique.
+
+2005-05-30 Vladimir Kliatchko <vladimir at kliatchko.com>
+
+ * pthread_once.c: Re-implement using an MCS queue-based lock. The form
+ of pthread_once is as proposed by Alexander Terekhov (see entry of
+ 2005-03-13). The MCS lock implementation does not require a unique
+ 'name' to identify the lock between threads. Removes the global mutex
+ and global condvar used to manage cancellation of the once_init routine.
+
+ * ptw32_MCS_lock.c: New MCS queue-based lock implementation. These
+ locks are efficient: they have very low overhead in the uncontended case;
+ are efficient in contention and minimise cache-coherence updates in
+ managing the user level FIFO queue; do not require an ABI change in the
+ library.
+
2005-05-27 Alexander Gottwald <alexander.gottwald at s1999.tu-chemnitz.de>
* pthread.h: Some things, like HANDLE, were only defined if
@@ -11,8 +31,6 @@
built with:
make CC=i586-mingw32msvc-gcc RC=i586-mingw32msvc-windres \
RANLIB=i586-mingw32msvc-ranlib clean GC-static
- * ptw32_relmillisecs.c (ptw32_relmillisecs): Remove INLINE qualifier
- macro to link the GCE library.
2005-05-13 Ross Johnson <ross at callisto.canberra.edu.au>