From 6b6ede3d15f04fe825cfa9f697507457e3640344 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sat, 14 Feb 2015 23:00:19 -0600 Subject: resolve merge --- libpthread/linuxthreads/barrier.c | 127 -------------------------------------- 1 file changed, 127 deletions(-) delete mode 100644 libpthread/linuxthreads/barrier.c (limited to 'libpthread/linuxthreads/barrier.c') diff --git a/libpthread/linuxthreads/barrier.c b/libpthread/linuxthreads/barrier.c deleted file mode 100644 index 2e2521b19..000000000 --- a/libpthread/linuxthreads/barrier.c +++ /dev/null @@ -1,127 +0,0 @@ -/* POSIX barrier implementation for LinuxThreads. - Copyright (C) 2000, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku , 2000. - - The GNU C Library is free software; you can redistribute it and/or - 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 - Lesser General Public License for more details. - - 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, see . */ - -#include -#include "pthread.h" -#include "internals.h" -#include "spinlock.h" -#include "queue.h" -#include "restart.h" - -int -pthread_barrier_wait(pthread_barrier_t *barrier) -{ - pthread_descr self = thread_self(); - pthread_descr temp_wake_queue, th; - int result = 0; - - __pthread_lock(&barrier->__ba_lock, self); - - /* If the required number of threads have achieved rendezvous... */ - if (barrier->__ba_present >= barrier->__ba_required - 1) - { - /* ... then this last caller shall be the serial thread */ - result = PTHREAD_BARRIER_SERIAL_THREAD; - /* Copy and clear wait queue and reset barrier. */ - temp_wake_queue = barrier->__ba_waiting; - barrier->__ba_waiting = NULL; - barrier->__ba_present = 0; - } - else - { - result = 0; - barrier->__ba_present++; - enqueue(&barrier->__ba_waiting, self); - } - - __pthread_unlock(&barrier->__ba_lock); - - if (result == 0) - { - /* Non-serial threads have to suspend */ - suspend(self); - /* We don't bother dealing with cancellation because the POSIX - spec for barriers doesn't mention that pthread_barrier_wait - is a cancellation point. */ - } - else - { - /* Serial thread wakes up all others. */ - while ((th = dequeue(&temp_wake_queue)) != NULL) - restart(th); - } - - return result; -} - -int -pthread_barrier_init(pthread_barrier_t *barrier, - const pthread_barrierattr_t *attr, - unsigned int count) -{ - if (count == 0) - return EINVAL; - - __pthread_init_lock(&barrier->__ba_lock); - barrier->__ba_required = count; - barrier->__ba_present = 0; - barrier->__ba_waiting = NULL; - return 0; -} - -int -pthread_barrier_destroy(pthread_barrier_t *barrier) -{ - if (barrier->__ba_waiting != NULL) return EBUSY; - return 0; -} - -int -pthread_barrierattr_init(pthread_barrierattr_t *attr) -{ - attr->__pshared = PTHREAD_PROCESS_PRIVATE; - return 0; -} - -int -pthread_barrierattr_destroy(pthread_barrierattr_t *attr) -{ - return 0; -} - -int -__pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, - int *pshared) -{ - *pshared = PTHREAD_PROCESS_PRIVATE; - return 0; -} - -int -pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared) -{ - if (pshared != PTHREAD_PROCESS_PRIVATE && pshared != PTHREAD_PROCESS_SHARED) - return EINVAL; - - /* For now it is not possible to shared a conditional variable. */ - if (pshared != PTHREAD_PROCESS_PRIVATE) - return ENOSYS; - - return 0; -} -- cgit v1.2.3