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gcc/libstdc++-v3 ChangeLog include/ext/mt_allo ...
- From: paolo at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org, libstdc++-cvs at gcc dot gnu dot org
- Date: 30 May 2004 10:58:12 -0000
- Subject: gcc/libstdc++-v3 ChangeLog include/ext/mt_allo ...
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-3_4-branch
Changes by: paolo@gcc.gnu.org 2004-05-30 10:58:12
Modified files:
libstdc++-v3 : ChangeLog
libstdc++-v3/include/ext: mt_allocator.h
Log message:
2004-05-30 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h:(__mt_alloc::allocate): Minor
tweaks.
2004-05-30 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.
2004-05-30 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).
2004-05-30 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
The critical section is actually very small, only two assignments.
2004-05-30 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.
2004-05-30 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
Rearrange arithmetic to avoid computing two divisions at
each deallocation.
2004-05-30 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.
2004-05-30 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h: Uglify consistently names of
variables, members and classes; tidy.
2004-05-30 Dhruv Matani <dhruvbird@gmx.net>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
Deallocation loop rewrote.
2004-05-30 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.
2004-05-30 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.
2004-05-30 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::allocate,
__mt_alloc<>::deallocate): Avoid redundant conditionals.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.2224.2.117&r2=1.2224.2.118
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/ext/mt_allocator.h.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.8.2.3&r2=1.8.2.4