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| author | Paolo Carlini <pcarlini@suse.de> | 2006-05-24 16:37:42 +0000 |
|---|---|---|
| committer | Paolo Carlini <paolo@gcc.gnu.org> | 2006-05-24 16:37:42 +0000 |
| commit | b7ee72de2db0a89db568b94650e06ead6ed1feaf (patch) | |
| tree | b8b2c3c4ae586040aae8bf0603bd2720d6524ce1 /libstdc++-v3/include/ext/rc_string_base.h | |
| parent | cc07b2dbebe3a752b1d01e6f62d8a2e71abb5c4e (diff) | |
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re PR libstdc++/24704 (__gnu_cxx::__exchange_and_add is called even for single threaded applications)
2006-05-24 Paolo Carlini <pcarlini@suse.de>
PR libstdc++/24704
* include/bits/atomicity.h (__exchange_and_add_single,
__atomic_add_single): New, single thread versions of the atomic
functions.
(__exchange_and_add_dispatch, __atomic_add_dispatch): New,
depending on __GTHREADS and __gthread_active_p() dispatch either
to the above or to the existing atomic functions.
* include/ext/pool_allocator.h: Update callers.
* include/ext/rc_string_base.h: Likewise.
* include/bits/locale_classes.h: Likewise.
* include/bits/basic_string.h: Likewise.
* include/bits/ios_base.h: Likewise.
* include/tr1/boost_shared_ptr.h: Likewise.
* src/ios.cc: Likewise.
* src/locale.cc: Likewise.
* src/ios_init.cc: Likewise.
From-SVN: r114044
Diffstat (limited to 'libstdc++-v3/include/ext/rc_string_base.h')
| -rw-r--r-- | libstdc++-v3/include/ext/rc_string_base.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libstdc++-v3/include/ext/rc_string_base.h b/libstdc++-v3/include/ext/rc_string_base.h index dece887d..c8bb9f3 100644 --- a/libstdc++-v3/include/ext/rc_string_base.h +++ b/libstdc++-v3/include/ext/rc_string_base.h @@ -1,6 +1,6 @@ // Reference-counted versatile string base -*- C++ -*- -// Copyright (C) 2005 Free Software Foundation, Inc. +// Copyright (C) 2005, 2006 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the @@ -134,7 +134,7 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) _CharT* _M_refcopy() throw() { - __atomic_add(&_M_info._M_refcount, 1); + __atomic_add_dispatch(&_M_info._M_refcount, 1); return _M_refdata(); } // XXX MT @@ -202,7 +202,8 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) void _M_dispose() { - if (__exchange_and_add(&_M_rep()->_M_info._M_refcount, -1) <= 0) + if (__exchange_and_add_dispatch(&_M_rep()->_M_info._M_refcount, + -1) <= 0) _M_rep()->_M_destroy(_M_get_allocator()); } // XXX MT |