2004-07-01 Benjamin Kosnik <bkoz@redhat.com>
Per Bothner <per@bothner.com >
Mohan Embar <gnustuff@thisiscool.com>
PR libstdc++/16248
* include/bits/concurrence.h (__glibcxx_mutex_type): New.
(__glibcxx_mutex): Encapsulate mutex init function into type for
threaded configurations without __GTHREAD_MUTEX_INIT.
(lock::lock): Make device member a reference.
(lock::~lock): Same.
* include/ext/pool_allocator.h (__pool_base::_M_get_mutex): Change
to mutex_type.
* src/allocator.cc: Same.
Co-Authored-By: Mohan Embar <gnustuff@thisiscool.com>
Co-Authored-By: Per Bothner <per@bothner.com>
From-SVN: r83985
2004-06-30 Brad Spencer <spencer@infointeractive.com>
* include/ext/mt_allocator.h: Handle allocations at static
initialization that happen before _S_options is (automatically)
constructed; set _S_init even if _M_force_new is true.
From-SVN: r83949
2004-06-18 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator (__mt_alloc<>::_Tune): Add _M_align,
the alignment requested.
(__mt_alloc<>::_Tune::_Tune): Tweak consistently.
(__mt_alloc<>::allocate): Use it instead of sizeof(_Block_record).
(__mt_alloc<>::deallocate): Likewise.
From-SVN: r83372
2004-06-18 Benjamin Kosnik <bkoz@redhat.com>
* include/ext/pool_allocator.h: Qualify __throw_bad_alloc.
(__pool_base): Remove unused template parameter. Add
protected. Move lock data into __pool_base::_Lock. Remove static
on member functions.
(__pool_base::_M_get_free_list): New.
(__pool_alloc): Move _S_force new here.
* src/allocator.cc: Move out of line __pool_base definitions here.
* config/linker-map.gnu: Export bits from __pool_base.
From-SVN: r83355
2004-06-08 Paolo Carlini <pcarlini@suse.de>
* include/ext/pool_allocator.h: Convert to a global free-list,
as per the original SGI/HP design: move the implementation
details to struct __pool_base, from which __pool_alloc derives.
* src/allocator.cc: Instantiate __pool_base.
From-SVN: r82794
2004-05-18 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h:(__mt_alloc::allocate): Minor
tweaks.
2004-05-18 Dhruv Matani <dhruvbird@gmx.net>
* include/ext/mt_allocator.h:(__mt_alloc::allocate): Re-write
allocation loop which removes blocks from the global free list
from O(N) to O(1) when the required blocks are <= the number
available.
From-SVN: r81992
2004-05-16 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
Consistently update __bin._M_free[0].
(__mt_alloc<>::allocate): When __bin._M_first[0] != NULL use
__bin._M_free[0] to simplify the while loop (i.e., the number
of iterations becomes known at the outset).
From-SVN: r81916
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
