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-rw-r--r--Utilities/cmlibuv/src/unix/pthread-barrier.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/Utilities/cmlibuv/src/unix/pthread-barrier.c b/Utilities/cmlibuv/src/unix/pthread-barrier.c
deleted file mode 100644
index b6e604d46..000000000
--- a/Utilities/cmlibuv/src/unix/pthread-barrier.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
-Copyright (c) 2016, Kari Tristan Helgason <kthelgason@gmail.com>
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-#include "uv-common.h"
-#include "pthread-barrier.h"
-
-#include <stdlib.h>
-#include <assert.h>
-
-/* TODO: support barrier_attr */
-int pthread_barrier_init(pthread_barrier_t* barrier,
- const void* barrier_attr,
- unsigned count) {
- int rc;
- _uv_barrier* b;
-
- if (barrier == NULL || count == 0)
- return EINVAL;
-
- if (barrier_attr != NULL)
- return ENOTSUP;
-
- b = uv__malloc(sizeof(*b));
- if (b == NULL)
- return ENOMEM;
-
- b->in = 0;
- b->out = 0;
- b->threshold = count;
-
- if ((rc = pthread_mutex_init(&b->mutex, NULL)) != 0)
- goto error2;
- if ((rc = pthread_cond_init(&b->cond, NULL)) != 0)
- goto error;
-
- barrier->b = b;
- return 0;
-
-error:
- pthread_mutex_destroy(&b->mutex);
-error2:
- uv__free(b);
- return rc;
-}
-
-int pthread_barrier_wait(pthread_barrier_t* barrier) {
- int rc;
- _uv_barrier* b;
-
- if (barrier == NULL || barrier->b == NULL)
- return EINVAL;
-
- b = barrier->b;
- /* Lock the mutex*/
- if ((rc = pthread_mutex_lock(&b->mutex)) != 0)
- return rc;
-
- /* Increment the count. If this is the first thread to reach the threshold,
- wake up waiters, unlock the mutex, then return
- PTHREAD_BARRIER_SERIAL_THREAD. */
- if (++b->in == b->threshold) {
- b->in = 0;
- b->out = b->threshold - 1;
- rc = pthread_cond_signal(&b->cond);
- assert(rc == 0);
-
- pthread_mutex_unlock(&b->mutex);
- return PTHREAD_BARRIER_SERIAL_THREAD;
- }
- /* Otherwise, wait for other threads until in is set to 0,
- then return 0 to indicate this is not the first thread. */
- do {
- if ((rc = pthread_cond_wait(&b->cond, &b->mutex)) != 0)
- break;
- } while (b->in != 0);
-
- /* mark thread exit */
- b->out--;
- pthread_cond_signal(&b->cond);
- pthread_mutex_unlock(&b->mutex);
- return rc;
-}
-
-int pthread_barrier_destroy(pthread_barrier_t* barrier) {
- int rc;
- _uv_barrier* b;
-
- if (barrier == NULL || barrier->b == NULL)
- return EINVAL;
-
- b = barrier->b;
-
- if ((rc = pthread_mutex_lock(&b->mutex)) != 0)
- return rc;
-
- if (b->in > 0 || b->out > 0)
- rc = EBUSY;
-
- pthread_mutex_unlock(&b->mutex);
-
- if (rc)
- return rc;
-
- pthread_cond_destroy(&b->cond);
- pthread_mutex_destroy(&b->mutex);
- uv__free(barrier->b);
- barrier->b = NULL;
- return 0;
-}