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-rw-r--r--lib/libkse/thread/thr_barrier.c122
1 files changed, 0 insertions, 122 deletions
diff --git a/lib/libkse/thread/thr_barrier.c b/lib/libkse/thread/thr_barrier.c
deleted file mode 100644
index 21113cb..0000000
--- a/lib/libkse/thread/thr_barrier.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*-
- * Copyright (c) 2003 David Xu <davidxu@freebsd.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#include "namespace.h"
-#include <errno.h>
-#include <stdlib.h>
-#include <pthread.h>
-#include "un-namespace.h"
-#include "thr_private.h"
-
-__weak_reference(_pthread_barrier_init, pthread_barrier_init);
-__weak_reference(_pthread_barrier_wait, pthread_barrier_wait);
-__weak_reference(_pthread_barrier_destroy, pthread_barrier_destroy);
-
-int
-_pthread_barrier_destroy(pthread_barrier_t *barrier)
-{
- pthread_barrier_t bar;
- int ret, ret2;
-
- if (barrier == NULL || *barrier == NULL)
- return (EINVAL);
-
- bar = *barrier;
- if (bar->b_waiters > 0)
- return (EBUSY);
- *barrier = NULL;
- ret = _pthread_mutex_destroy(&bar->b_lock);
- ret2 = _pthread_cond_destroy(&bar->b_cond);
- free(bar);
- return (ret ? ret : ret2);
-}
-
-int
-_pthread_barrier_init(pthread_barrier_t *barrier,
- const pthread_barrierattr_t *attr __unused, unsigned count)
-{
- pthread_barrier_t bar;
- int ret;
-
- if (barrier == NULL || count <= 0)
- return (EINVAL);
-
- bar = malloc(sizeof(struct pthread_barrier));
- if (bar == NULL)
- return (ENOMEM);
-
- if ((ret = _pthread_mutex_init(&bar->b_lock, NULL)) != 0) {
- free(bar);
- return (ret);
- }
-
- if ((ret = _pthread_cond_init(&bar->b_cond, NULL)) != 0) {
- _pthread_mutex_destroy(&bar->b_lock);
- free(bar);
- return (ret);
- }
-
- bar->b_waiters = 0;
- bar->b_count = count;
- bar->b_generation = 0;
- *barrier = bar;
-
- return (0);
-}
-
-int
-_pthread_barrier_wait(pthread_barrier_t *barrier)
-{
- int ret, gen;
- pthread_barrier_t bar;
-
- if (barrier == NULL || *barrier == NULL)
- return (EINVAL);
-
- bar = *barrier;
- if ((ret = _pthread_mutex_lock(&bar->b_lock)) != 0)
- return (ret);
-
- if (++bar->b_waiters == bar->b_count) {
- /* Current thread is lastest thread */
- bar->b_generation++;
- bar->b_waiters = 0;
- ret = _pthread_cond_broadcast(&bar->b_cond);
- if (ret == 0)
- ret = PTHREAD_BARRIER_SERIAL_THREAD;
- } else {
- gen = bar->b_generation;
- do {
- ret = _pthread_cond_wait(
- &bar->b_cond, &bar->b_lock);
- /* test generation to avoid bogus wakeup */
- } while (ret == 0 && gen == bar->b_generation);
- }
- _pthread_mutex_unlock(&bar->b_lock);
- return (ret);
-}
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