2004-04-05 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
The critical section is actually very small, only two assignments.
From-SVN: r80439
2004-04-03 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::allocate): Factor out
some duplicated code.
(__mt_alloc<>::_Bin_record): Spare the space of _M_free and _M_used
in the single threaded case.
* testsuite/performance/20_util/allocator/list_sort_search.cc:
Reorder and renumber the tests consistently with the other testfiles.
* testsuite/performance/20_util/allocator/map_mt_find.cc: Ditto.
* testsuite/performance/20_util/allocator/map_thread.cc: Ditto.
* testsuite/performance/20_util/allocator/producer_consumer.cc: Ditto.
From-SVN: r80375
2004-04-02 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
Rearrange arithmetic to avoid computing two divisions at
each deallocation.
From-SVN: r80356
2004-04-01 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::_S_initialize):
Streamline the second half, wrapping it in a single
'#ifdef __GTHREADS if (__gthread_active_p())' and avoiding
conditionals inside loops.
From-SVN: r80323
2004-03-26 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::allocate,
__mt_alloc<>::deallocate): Protect two instances of
block->thread_id with __GTHREADS.
From-SVN: r79986
2004-03-25 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::tune):
Add _M_min_bin, the size in bytes of the smallest bin.
(__mt_alloc<>::tune()): Tweak accordingly.
(__mt_alloc<>::tune(size_t, ...)): Likewise.
(__mt_alloc<>::block_record): Change to a union: members next
and thread_id are never used at the same time.
(__mt_alloc<>::allocate): Update consistently.
(__mt_alloc<>::deallocate): Likewise.
(__mt_alloc<>::_S_initialize): Update setups of _S_binmap and
_S_bin_size for the configurable _M_min_size.
From-SVN: r79962
2004-03-24 Dhruv Matani <dhruvbird@gmx.net>
* ext/malloc_allocator.h: Fixed the construct function to call
global placement new instead of assignment. Added a check after
the return from malloc to check whether returned pointer is NULL,
and if so, throw std::bad_alloc().
* ext/debug_allocator.h: Added a check in the deallocate function
to check whether the user has passed a NULL pointer or not.
From-SVN: r79934
2004-03-24 Dhruv Matani <dhruvbird@gmx.net>
* include/ext/bitmap_allocator.h: (_Bit_scan_forward) -> Made this
function call __builtin_ctz instead of the while loop.
(allocate) -> If condition has __builtin_expect.
(deallocate) -> Ditto.
Renamed a few left-over variables and typedefs according to the
C++STYLE mentioned in the documentation.
Protected calls to __gthread* by __gthread_active_p(), whose value
is cached in the local variable __threads_active.
From-SVN: r79924
2004-03-19 Paolo Carlini <pcarlini@suse.de>
Petur Runolfsson <peturr02@ru.is>
PR libstdc++/12077
* include/ext/stdio_sync_filebuf.h (showmanyc): Remove, there's
no way to find out the conversion used by the underlying FILE*.
* testsuite/ext/stdio_sync_filebuf/wchar_t/12077.cc: New.
* testsuite/27_io/objects/char/9.cc: Tweak.
Co-Authored-By: Petur Runolfsson <peturr02@ru.is>
From-SVN: r79695
2004-03-06 Benjamin Kosnik <bkoz@redhat.com>
* include/ext/mt_allocator.h (_S_initialize): If
!__GTHREAD_MUTEX_INIT, then initialize _S_thread_freelist_mutex.
From-SVN: r79044
2004-03-06 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/12658
* src/locale_init.cc (locale::locale): Lock critical regions with
external mutexes.
(locale::global): Same.
* include/bits/concurrence.h (__glibcxx_mutex_define_initialized):
Add in once bits for cases without __GTHREAD_MUTEX_INIT.
(__glibcxx_mutex_lock): Same.
* config/cpu/generic/atomicity.h: Remove
_GLIBCXX_NEED_GENERIC_MUTEX, use concurrence.h.
* src/misc-inst.cc: Move all locking bits out of this file.
* config/os/hpux/os_defines.h: Remove _GLIBCXX_INST_ATOMICITY_LOCK.
* src/misc-inst.cc: Same.
* config/cpu/hppa/atomicity.h: Same.
* config/linker-map.gnu: Remove types in the signature of atomic
exports, as they may vary.
From-SVN: r79043
2004-02-17 Stefan Olsson <stefan@xapa.se>
* include/ext/mt_allocator.h: Removed the last
pointer. Deallocated blocks are now added to the front of
freelists as proposed by Felix Yen. This gives roughly 10%
performance boost and saves some memory.
* docs/html/ext/mt_allocator.html: Change due to that deallocated
blocks now are added to the front of freelists. The reason to this
approach is also explained.
From-SVN: r78009
2004-02-09 Stefan Olsson <stefan@xapa.se>
* include/ext/mt_allocator.h: thread_id is unused in non threaded
applications and now has a ifdef to remove it completely on
compilers without thread support. Include stdlib.h due to a
compiler warning on getenv().
From-SVN: r77576
2004-02-04 Dhruv Matani <dhruvbird@gmx.net>
* include/ext/debug_allocator.h: _M_extra now stands for the
number of extra objects instead of the number of extra bytes.
(debug_allocator::allocate): Adjust.
(debug_allocator::deallocate): Adjust.
* include/ext/pool_allocator.h: Fix typo.
From-SVN: r77256
2004-01-28 Stefan Olsson <stefan@snon.net>
* include/ext/mt_allocator.h: Replaced all malloc() calls with
operator new(). Added support for the env variable
GLIBCXX_FORCE_NEW (this required the _S_init call to be the first
one in allocate() as well). Fix typos.
From-SVN: r76795
2004-01-19 Stefan Olsson <stefan@snon.net>
* include/ext/mt_allocator.h: If a thread, when it dies, still has
memory on it's freelist this memory is not returned to global
list. Simplification of deallocate so that memory is always
returned to the calling thread id's freelist instead of to
global. Fix typos. Add volatile where appropriate.
From-SVN: r76200
2004-01-15 Stefan Olsson <stefan@snon.net>
* include/ext/mt_allocator.h: Reuse thread id's as soon as
possible by changing the behaviour of thread_freelist to do
push_front when threads die instead of push_back.
From-SVN: r75939
2004-01-13 Paolo Carlini <pcarlini@suse.de>
* include/ext/rope (_Rope_rep_alloc_base): Eliminate.
(_Rope_rep_base): Inherit directly from the rope allocator;
use rebinding instead of _Alloc_traits; pick up data member
from _Rope_rep_alloc_base.
(_Rope_alloc_base): Eliminate.
(_Rope_base): Inherit directly from the rope allocator; use
rebinding instead of _Alloc_traits; pick up data member from
_Rope_alloc_base.
(rope::_S_new_RopeLeaf, rope::_S_new_RopeConcatenation,
rope::_S_new_RopeFunction, rope::_S_new_RopeSubstring): Tweak.
From-SVN: r75800
2003-12-28 Paolo Carlini <pcarlini@suse.de>
* include/ext/pool_allocator.h (class __pool_alloc): Use
operator new and operator delete.
From-SVN: r75181
2003-12-23 Benjamin Kosnik <bkoz@redhat.com>
* include/ext/new_allocator.h (new_allocator): Proper allocator class.
(__new_alloc): Delete.
* include/ext/malloc_allocator.h (malloc_allocator): Same.
(__malloc_alloc): Delete.
* include/ext/mt_allocator.h: Same, but weakly.
* include/ext/debug_allocator.h: Convert to the new style.
* include/ext/pool_allocator.h: Use global new and delete directly.
* include/backward/alloc.h: Don't inject malloc_allocator, or
debug_allocator.
* testsuite/ext/allocators.cc: Minimal fixups for usage of new
classes. Comment out tests with __pool_alloc for now.
* testsuite/performance/allocator.cc: Same.
From-SVN: r74965
* include/bits/demangle.h: Fix allocator type correctness,
i.e. make sure that when we instantiate a container with a value
type and an allocator, the allocator's value type matches the
container's.
* include/bits/stl_deque.h (_Deque_alloc_base): Eliminate.
(_Deque_base): inherit directly from the deque's allocator. Use
rebinding instead of _Alloc_traits. Pick up data members from
_Deque_alloc_base.
* include/bits/stl_list.h (_List_alloc_base): Eliminate.
(_List_base): Inherit directly from the list's allocator. Use
rebinding instead of _Alloc_traits. Pick up data members from
_List_alloc_base.
* include/bits/stl_vector.h (_Vector_alloc_base): Eliminate
(_Vector_base): Inherit directly from the vector's allocator. Use
rebinding instead of _Alloc_traits. Pick up data members from
_Vector_alloc_base.
* include/ext/hashtable.h: Fix allocator type correctness (the
vector of buckets must be passed an allocator for objects of
type _Node*). Use rebinding instead of _Alloc_traits.
From-SVN: r74787
2003-11-11 Paolo Carlini <pcarlini@suse.de>
PR libstdc++/12875
* include/bits/fstream.tcc (setbuf): Don't do anything
after open(), in particular don't discard data.
(_M_allocate_internal_buffer): Tweak to not allocate memory
in case the buffer is provided by the user via setbuf.
* include/ext/stdio_filebuf.h: Tweak comment.
* testsuite/27_io/basic_filebuf/setbuf/char/12875-1.cc: New.
* testsuite/27_io/basic_filebuf/setbuf/char/12875-2.cc: Likewise.
* testsuite/27_io/basic_filebuf/setbuf/char/2.cc: Tweak, now
setbuf does nothing after open().
* testsuite/27_io/basic_filebuf/setbuf/char/3.cc: Likewise.
From-SVN: r73477
