From a032a6587011cbdac8c2f7e11f15dc4e592bbb55 Mon Sep 17 00:00:00 2001 From: Austin Foxley Date: Tue, 16 Feb 2010 12:27:18 -0800 Subject: mass sync with glibc nptl Signed-off-by: Austin Foxley --- libpthread/nptl/pthread_barrier_init.c | 36 +++++++++++++++++++++++----------- 1 file changed, 25 insertions(+), 11 deletions(-) (limited to 'libpthread/nptl/pthread_barrier_init.c') diff --git a/libpthread/nptl/pthread_barrier_init.c b/libpthread/nptl/pthread_barrier_init.c index 98a7ecc3f..f0396f929 100644 --- a/libpthread/nptl/pthread_barrier_init.c +++ b/libpthread/nptl/pthread_barrier_init.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , 2002. @@ -20,6 +20,13 @@ #include #include "pthreadP.h" #include +#include + + +static const struct pthread_barrierattr default_attr = + { + .pshared = PTHREAD_PROCESS_PRIVATE + }; int @@ -33,17 +40,15 @@ pthread_barrier_init ( if (__builtin_expect (count == 0, 0)) return EINVAL; - if (attr != NULL) - { - struct pthread_barrierattr *iattr; - - iattr = (struct pthread_barrierattr *) attr; + const struct pthread_barrierattr *iattr + = (attr != NULL + ? iattr = (struct pthread_barrierattr *) attr + : &default_attr); - if (iattr->pshared != PTHREAD_PROCESS_PRIVATE - && __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0)) - /* Invalid attribute. */ - return EINVAL; - } + if (iattr->pshared != PTHREAD_PROCESS_PRIVATE + && __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0)) + /* Invalid attribute. */ + return EINVAL; ibarrier = (struct pthread_barrier *) barrier; @@ -53,5 +58,14 @@ pthread_barrier_init ( ibarrier->init_count = count; ibarrier->curr_event = 0; +#ifdef __ASSUME_PRIVATE_FUTEX + ibarrier->private = (iattr->pshared != PTHREAD_PROCESS_PRIVATE + ? 0 : FUTEX_PRIVATE_FLAG); +#else + ibarrier->private = (iattr->pshared != PTHREAD_PROCESS_PRIVATE + ? 0 : THREAD_GETMEM (THREAD_SELF, + header.private_futex)); +#endif + return 0; } -- cgit v1.2.3