2 * Copyright (c) 2004, 2005 Voltaire, Inc. All rights reserved.
3 * Copyright (c) 2002-2005 Mellanox Technologies LTD. All rights reserved.
4 * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
38 #endif /* HAVE_CONFIG_H */
40 #include <complib/cl_spinlock.h>
42 void cl_spinlock_construct(IN cl_spinlock_t * const p_spinlock)
44 CL_ASSERT(p_spinlock);
46 p_spinlock->state = CL_UNINITIALIZED;
49 cl_status_t cl_spinlock_init(IN cl_spinlock_t * const p_spinlock)
51 CL_ASSERT(p_spinlock);
53 cl_spinlock_construct(p_spinlock);
55 /* Initialize with pthread_mutexattr_t = NULL */
56 if (pthread_mutex_init(&p_spinlock->mutex, NULL))
59 p_spinlock->state = CL_INITIALIZED;
63 void cl_spinlock_destroy(IN cl_spinlock_t * const p_spinlock)
65 CL_ASSERT(p_spinlock);
66 CL_ASSERT(cl_is_state_valid(p_spinlock->state));
68 if (p_spinlock->state == CL_INITIALIZED) {
69 p_spinlock->state = CL_UNINITIALIZED;
70 pthread_mutex_lock(&p_spinlock->mutex);
71 pthread_mutex_unlock(&p_spinlock->mutex);
72 pthread_mutex_destroy(&p_spinlock->mutex);
74 p_spinlock->state = CL_UNINITIALIZED;
77 void cl_spinlock_acquire(IN cl_spinlock_t * const p_spinlock)
79 CL_ASSERT(p_spinlock);
80 CL_ASSERT(p_spinlock->state == CL_INITIALIZED);
82 pthread_mutex_lock(&p_spinlock->mutex);
85 void cl_spinlock_release(IN cl_spinlock_t * const p_spinlock)
87 CL_ASSERT(p_spinlock);
88 CL_ASSERT(p_spinlock->state == CL_INITIALIZED);
90 pthread_mutex_unlock(&p_spinlock->mutex);