mirror of
https://github.com/intel/linux-sgx
synced 2026-06-08 14:49:32 +00:00
Zhang Lili Z
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
/* $OpenBSD: rthread_cond.c,v 1.5 2019/01/29 17:40:26 mpi Exp $ */
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/*
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* Copyright (c) 2017 Martin Pieuchot <mpi@openbsd.org>
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* Copyright (c) 2012 Philip Guenther <guenther@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <errno.h>
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#include "sgx_trts.h"
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#include "sgx_spinlock.h"
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#include "pthread_imp.h"
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/*
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*: dynamic package initialization
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*/
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int pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
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{
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if ( !sgx_is_within_enclave((void *)once_control, sizeof(pthread_once_t))) {
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return EINVAL;
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}
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pthread_mutex_lock(&once_control->mutex);
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if (once_control->state == PTHREAD_NEEDS_INIT) {
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init_routine();
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once_control->state = PTHREAD_DONE_INIT;
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}
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pthread_mutex_unlock(&once_control->mutex);
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return (0);
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}
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