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69 lines
2.7 KiB
C
69 lines
2.7 KiB
C
/*
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Copyright (c) 2012, Broadcom Europe Ltd
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*=============================================================================
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VideoCore OS Abstraction Layer - Construct a latch from a semaphore
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=============================================================================*/
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/** FIXME: rename to vcos_mutex_from_sem.c
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*/
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typedef struct VCOS_MUTEX_T {
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VCOS_SEMAPHORE_T sem;
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struct VCOS_THREAD_T *owner;
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} VCOS_MUTEX_T;
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extern VCOS_STATUS_T vcos_generic_mutex_create(VCOS_MUTEX_T *latch, const char *name);
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extern void vcos_generic_mutex_delete(VCOS_MUTEX_T *latch);
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extern VCOS_STATUS_T vcos_generic_mutex_lock(VCOS_MUTEX_T *latch);
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extern void vcos_generic_mutex_unlock(VCOS_MUTEX_T *latch);
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#if defined(VCOS_INLINE_BODIES)
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VCOS_INLINE_IMPL
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VCOS_STATUS_T vcos_mutex_create(VCOS_MUTEX_T *latch, const char *name) {
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return vcos_generic_mutex_create(latch,name);
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}
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VCOS_INLINE_IMPL
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void vcos_mutex_delete(VCOS_MUTEX_T *latch) {
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vcos_generic_mutex_delete(latch);
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}
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VCOS_INLINE_IMPL
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VCOS_STATUS_T vcos_mutex_lock(VCOS_MUTEX_T *latch) {
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return vcos_generic_mutex_lock(latch);
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}
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VCOS_INLINE_IMPL
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void vcos_mutex_unlock(VCOS_MUTEX_T *latch) {
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vcos_generic_mutex_unlock(latch);
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}
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#endif /* VCOS_INLINE_BODIES */
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