mirror of
https://github.com/intel/linux-sgx
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Li, Xun
103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/*
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* Copyright (C) 2011-2020 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 PTHREAD_IMP_H__
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#define PTHREAD_IMP_H__
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#include "sgx_thread.h"
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#include "setjmp.h"
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#include "sgx_spinlock.h"
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#include "pthread.h"
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#define WAITER_TD_NULL 0
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#define PTHREAD_WAIT_TIMEOUT_SECONDS 5
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typedef struct _sgx_pthread_common_queue_elm_t
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{
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volatile struct _sgx_pthread_common_queue_elm_t * next;
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}sgx_pthread_common_queue_elm_t;
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typedef struct _sgx_pthread_common_queue_t
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{
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volatile struct _sgx_pthread_common_queue_elm_t * first; /* first element */
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volatile struct _sgx_pthread_common_queue_elm_t * last; /* last element */
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}sgx_pthread_common_queue_t;
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struct sgx_pthread_storage {
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int keyid;
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struct sgx_pthread_storage *next;
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void *data;
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};
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struct sgx_thread_key {
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int used;
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void (*destructor)(void *);
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};
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//_pthread->state
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typedef enum {
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_STATE_NONE = 0,
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_STATE_PREPARING,
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_STATE_EXECUTION,
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_STATE_WAKEDUP,
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_STATE_ERROR_OUT_OF_TCS,
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_STATE_ERROR_UNEXPECTED,
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} _pthread_state;
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typedef struct _pthread
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{
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volatile sgx_spinlock_t lock;
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volatile _pthread_state state;
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sgx_thread_t joiner_td; /* The thread's TD who execute join for this target thread */
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sgx_thread_t creater_td;
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struct _sgx_pthread_common_queue_elm_t common_queue_elm;
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void *(*start_routine)(void *);
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void * arg;
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void * retval; /* Used by sgx_thread_exit() and sgx_thread_join() to pass the exit message */
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void * tid;
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}pthread;
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typedef struct _pthread_attr
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{
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char reserved;
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}pthread_attr;
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typedef struct _pthread_info
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{
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pthread * m_pthread;
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struct sgx_pthread_storage *m_local_storage;
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jmp_buf m_mark;
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sgx_status_t m_state;
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}pthread_info;
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#endif
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