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9441de4c38
This release is used in conjunction with the linux-sgx-driver Intial release: https://github.com/01org/linux-sgx-driver commit-id: 0e865ce5e6b297a787bcdc12d98bada8174be6d7 Intel-id: 33399 Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
114 lines
4.0 KiB
C
114 lines
4.0 KiB
C
/*
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* Copyright (C) 2011-2016 Intel Corporation. All rights reserved.
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*
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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
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* are met:
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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef _SGX_THREAD_H_
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#define _SGX_THREAD_H_
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#include <stdint.h>
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#include <stddef.h>
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#include "sgx_defs.h"
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typedef uintptr_t sgx_thread_t;
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typedef struct sgx_thread_queue
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{
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sgx_thread_t m_first; /* first element */
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sgx_thread_t m_last; /* last element */
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} sgx_thread_queue_t;
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/* Mutex */
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typedef struct sgx_thread_mutex
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{
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size_t m_refcount;
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uint32_t m_control;
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volatile uint32_t m_lock; /* use sgx_spinlock_t */
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sgx_thread_t m_owner;
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sgx_thread_queue_t m_queue;
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} sgx_thread_mutex_t;
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#define SGX_THREAD_T_NULL ((sgx_thread_t)(NULL))
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#define SGX_THREAD_MUTEX_NONRECURSIVE 0x01
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#define SGX_THREAD_MUTEX_RECURSIVE 0x02
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#define SGX_THREAD_NONRECURSIVE_MUTEX_INITIALIZER \
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{0, SGX_THREAD_MUTEX_NONRECURSIVE, 0, SGX_THREAD_T_NULL, {SGX_THREAD_T_NULL, SGX_THREAD_T_NULL}}
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#define SGX_THREAD_RECURSIVE_MUTEX_INITIALIZER \
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{0, SGX_THREAD_MUTEX_RECURSIVE, 0, SGX_THREAD_T_NULL, {SGX_THREAD_T_NULL, SGX_THREAD_T_NULL}}
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#define SGX_THREAD_MUTEX_INITIALIZER \
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SGX_THREAD_NONRECURSIVE_MUTEX_INITIALIZER
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typedef struct sgx_thread_mutex_attr
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{
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unsigned char m_dummy; /* for C syntax check */
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} sgx_thread_mutexattr_t;
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/* Condition Variable */
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typedef struct sgx_thread_cond
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{
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volatile uint32_t m_lock; /* use sgx_spinlock_t */
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sgx_thread_queue_t m_queue;
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} sgx_thread_cond_t;
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#define SGX_THREAD_COND_INITIALIZER {0, {SGX_THREAD_T_NULL, SGX_THREAD_T_NULL}}
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typedef struct sgx_thread_cond_attr
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{
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unsigned char m_dummy; /* for C syntax check */
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} sgx_thread_condattr_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Mutex */
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int SGXAPI sgx_thread_mutex_init(sgx_thread_mutex_t *mutex, const sgx_thread_mutexattr_t *unused);
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int SGXAPI sgx_thread_mutex_destroy(sgx_thread_mutex_t *mutex);
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int SGXAPI sgx_thread_mutex_lock(sgx_thread_mutex_t *mutex);
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int SGXAPI sgx_thread_mutex_trylock(sgx_thread_mutex_t *mutex);
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int SGXAPI sgx_thread_mutex_unlock(sgx_thread_mutex_t *mutex);
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/* Condition Variable */
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int SGXAPI sgx_thread_cond_init(sgx_thread_cond_t *cond, const sgx_thread_condattr_t *unused);
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int SGXAPI sgx_thread_cond_destroy(sgx_thread_cond_t *cond);
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int SGXAPI sgx_thread_cond_wait(sgx_thread_cond_t *cond, sgx_thread_mutex_t *mutex);
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int SGXAPI sgx_thread_cond_signal(sgx_thread_cond_t *cond);
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int SGXAPI sgx_thread_cond_broadcast(sgx_thread_cond_t *cond);
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sgx_thread_t SGXAPI sgx_thread_self(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SGX_THREAD_H_ */
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