mirror of
https://github.com/intel/linux-sgx
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lzha101
99 lines
3.8 KiB
C
99 lines
3.8 KiB
C
/*
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* Copyright (C) 2011-2021 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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#include "se_thread.h"
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#include "se_types.h"
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void se_mutex_init(se_mutex_t* mutex)
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{
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#ifdef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
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se_mutex_t tmp = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
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#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
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se_mutex_t tmp = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
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#else
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#error no pre-defined RECURSIVE_MUTEX found.
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#endif
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/* C doesn't allow `*mutex = PTHREAD_..._INITIALIZER'.*/
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memcpy(mutex, &tmp, sizeof(tmp));
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}
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int se_mutex_lock(se_mutex_t* mutex) { return (0 == pthread_mutex_lock(mutex)); }
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int se_mutex_unlock(se_mutex_t* mutex) { return (0 == pthread_mutex_unlock(mutex)); }
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int se_mutex_destroy(se_mutex_t* mutex) { return (0 == pthread_mutex_destroy(mutex));}
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void se_thread_cond_init(se_cond_t* cond)
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{
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se_cond_t tmp = PTHREAD_COND_INITIALIZER;
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memcpy(cond, &tmp, sizeof(tmp));
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}
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int se_thread_cond_wait(se_cond_t *cond, se_mutex_t *mutex){return (0 == pthread_cond_wait(cond, mutex));}
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int se_thread_cond_signal(se_cond_t *cond){return (0 == pthread_cond_signal(cond));}
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int se_thread_cond_broadcast(se_cond_t *cond){return (0 == pthread_cond_broadcast(cond));}
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int se_thread_cond_destroy(se_cond_t* cond){return (0 == pthread_cond_destroy(cond));}
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unsigned int se_get_threadid(void) { return (unsigned)syscall(__NR_gettid);}
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/* tls functions */
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int se_tls_alloc(se_tls_index_t *tls_index) { return !pthread_key_create(tls_index, NULL); }
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int se_tls_free(se_tls_index_t tls_index) { return !pthread_key_delete(tls_index); }
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void * se_tls_get_value(se_tls_index_t tls_index) { return pthread_getspecific(tls_index); }
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int se_tls_set_value(se_tls_index_t tls_index, void *tls_value) { return !pthread_setspecific(tls_index, tls_value); }
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/*
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se_thread_handle_t se_create_thread(size_t stack_size, thread_start_routine_t start_routine, void *param, se_thread_t *thread)
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{
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pthread_attr_t attr, *attr_ptr = NULL;
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int ret;
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if(stack_size > 0)
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{
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ret = pthread_attr_init(&attr);
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if(ret)
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return NULL;
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ret = pthread_attr_setstacksize(&attr, stack_size);
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if(ret)
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return NULL;
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attr_ptr = &attr;
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}
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else
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{
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attr_ptr = NULL;
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}
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ret = pthread_create(thread, attr_ptr, start_routine, param);
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if(ret)
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return NULL;
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if(attr_ptr)
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pthread_attr_destroy(&attr);
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return thread;
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}
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*/
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