* attr.c (pthread_attr_setscope): Add more error

        checking and actually store the scope value even
        though it's not really necessary.
        (pthread_attr_getscope): Return stored value.
        * implement.h (pthread_attr_t_): Add new scope element.
        * ANNOUNCE: Fix out of date comment next to
        pthread_attr_setscope in conformance section.

1 files changed, 16 insertions, 3 deletions

diff --git a/ANNOUNCE b/ANNOUNCE
index 9953dc1..a6a84c5 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -27,10 +27,20 @@ announcement for the list of contributors.
 Changes since the last snapshot

 -------------------------------

 

+platform dependence

+-------------------

+As Win9x doesn't provide one, the library now contains

+it's own InterlockedCompareExchange() routine. It is used to

+implement spinlocks and barriers, and soon may be used in mutexes.

+This routine relies on the CMPXCHG machine instruction which

+is only available in i486 or above CPUs. This library

+(from snapshot 20010712 onwards) therefore no longer runs on

+i386 platforms.

+

 rwlocks

 -------

 Restored pthread_rwlock_wrlock() as a cancelation point as permitted

-by POSIX 1003.1j. (Was prematurely disabled in the the last snapshot.)

+by POSIX 1003.1j. (Was prematurely disabled in the last snapshot.)

 

 Bug fixes

 ---------

@@ -39,6 +49,9 @@ pthread_mutexattr_getpshared, pthread_barrierattr_init,
 pthread_barrierattr_getpshared, and pthread_condattr_getpshared.

 - Scott McCaskill <scott@magruder.org>

 

+Removed potential race condition in pthread_mutex_trylock and

+pthread_mutex_lock;

+- Alexander Terekhov <TEREKHOV@de.ibm.com>

 

 ---------------------------

 Known bugs in this snapshot

@@ -256,8 +269,8 @@ The following functions are implemented:
       pthread_setschedparam

       pthread_getconcurrency

       pthread_setconcurrency

-      pthread_attr_getscope  (returns an error ENOSYS)

-      pthread_attr_setscope  (returns an error ENOSYS)

+      pthread_attr_getscope

+      pthread_attr_setscope  (only supports PTHREAD_SCOPE_SYSTEM)

       sched_get_priority_max (POSIX 1b)

       sched_get_priority_min (POSIX 1b)

       sched_rr_get_interval  (POSIX 1b  - returns an error ENOTSUP)