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r129030 - in /trunk: gcc/ChangeLog gcc/gthr-pos...
- From: jason at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Fri, 05 Oct 2007 05:35:46 -0000
- Subject: r129030 - in /trunk: gcc/ChangeLog gcc/gthr-pos...
Author: jason
Date: Fri Oct 5 05:35:46 2007
New Revision: 129030
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129030
Log:
2007-09-13 Doug Kwan <dougkwan@google.com>
* gcc/gthr-posix.h (__gthread_cond_broadcast, __gthread_cond_wait,
__gthread_cond_wait_recursive): Add to extend interface for POSIX
conditional variables. (__GTHREAD_HAS_COND): Macro defined to signify
support of conditional variables.
* gcc/gthr-posix95.h (__gthread_cond_broadcast, __gthread_cond_wait,
__gthread_cond_wait_recursive): Add to extend interface for POSIX
conditional variables. (__GTHREAD_HAS_COND): Macro defined to signify
support of conditional variables.
* gcc/gthr-single.h (__gthread_cond_broadcast, __gthread_cond_wait,
__gthread_cond_wait_recursive): Add to extend interface for POSIX
conditional variables.
* gcc/gthr.h: Update comments to document new interface.
* libstdc++-v3/include/ext/concurrent.h (class __mutex,
class __recursive_mutex): Add new method gthread_mutex to access
inner gthread mutex.
[__GTHREAD_HAS_COND] (class __concurrence_broadcast_error,
class __concurrence_wait_error, class __cond): Add.
* guard.cc (recursive_push, recursive_pop): Delete.
(init_in_progress_flag, set_init_in_progress_flag): Add to
replace recursive_push and recursive_pop.
(throw_recursive_init_exception): Add.
(acquire, __cxa_guard_acquire, __cxa_guard_abort and
__cxa_guard_release): [__GTHREAD_HAS_COND] Use a conditional
for synchronization of static variable initialization.
The global mutex is only held briefly when guards are
accessed. [!__GTHREAD_HAS_COND] Fall back to the old code,
which deadlocks.
* testsuite/thread/guard.cc: Add new test. It deadlocks with the
old locking code in libstdc++-v3/libsup++/guard.cc.
Added:
trunk/libstdc++-v3/testsuite/thread/guard.cc
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gthr-posix.h
trunk/gcc/gthr-posix95.h
trunk/gcc/gthr-single.h
trunk/gcc/gthr.h
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/ext/concurrence.h
trunk/libstdc++-v3/libsupc++/guard.cc