From 187dd78d7bd1c03fcf16e54a30314512d38e1a4a Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 27 Feb 2003 18:13:05 +0000 Subject: Major update for pthreads, based in large part on improvements from glibc 2.3. This should make threads much more efficient. -Erik --- libc/sysdeps/linux/common/bits/initspin.h | 15 ++++++++------- libc/sysdeps/linux/common/bits/pthreadtypes.h | 4 +--- 2 files changed, 9 insertions(+), 10 deletions(-) (limited to 'libc') diff --git a/libc/sysdeps/linux/common/bits/initspin.h b/libc/sysdeps/linux/common/bits/initspin.h index 257fed3c5..a19ec077e 100644 --- a/libc/sysdeps/linux/common/bits/initspin.h +++ b/libc/sysdeps/linux/common/bits/initspin.h @@ -3,16 +3,16 @@ This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU Library General Public + You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ @@ -20,8 +20,9 @@ /* Initial value of a spinlock. Most platforms should use zero, unless they only implement a "test and clear" operation instead of the usual "test and set". */ -#define __ATOMIC_LOCK_INIT 0 +#define __LT_SPINLOCK_INIT 0 /* Macros for lock initializers, using the above definition. */ -#define __LOCK_INITIALIZER { 0, 0 } -#define __ATOMIC_INITIALIZER { 0, 0 } +#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT } +#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT } +#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT } diff --git a/libc/sysdeps/linux/common/bits/pthreadtypes.h b/libc/sysdeps/linux/common/bits/pthreadtypes.h index 441734c9d..3ee5c4813 100644 --- a/libc/sysdeps/linux/common/bits/pthreadtypes.h +++ b/libc/sysdeps/linux/common/bits/pthreadtypes.h @@ -22,13 +22,11 @@ #define __need_schedparam #include -typedef int __atomic_lock_t; - /* Fast locks (not abstract because mutexes and conditions aren't abstract). */ struct _pthread_fastlock { long int __status; /* "Free" or "taken" or head of waiting list */ - __atomic_lock_t __spinlock; /* Used by compare_and_swap emulation. Also, + int __spinlock; /* Used by compare_and_swap emulation. Also, adaptive SMP lock stores spin count here. */ }; -- cgit v1.2.3