bdd35de712
Some programs use C11 threads instead of POSIX threads, so this change implements a light wrapper around POSIX threads that conforms to the C11 spec. This code was primarily taken from FreeBSD, with minor modifications: - The header file was trimmed to only include functions in the C11 spec, and changed to match the format of other Haiku header files - The thrd_yield function was implemented with its POSIX equivalent sched_yield instead of the non-standard pthread_yield - The thrd_create function was changed to return thrd_busy on an EAGAIN error code instead of unconditionally returning thrd_error The respective files can be found in the FreeBSD source tree at: - lib/libstdthreads/threads.h - lib/libstdthreads/thrd.c TODO: - untested (is a unit test in order?) Change-Id: I422f96f4854cd686f9637fc2e98cb03ce06a764a Reviewed-on: https://review.haiku-os.org/c/haiku/+/5213 Reviewed-by: Jérôme Duval <jerome.duval@gmail.com> Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
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* Copyright (c) 2022 Dominic Martinez <dom@dominicm.dev>
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* 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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* 1. 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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* 2. 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#if __GNUC__ > 2 /* not available on gcc2 */
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#ifndef _THREADS_H_
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#define _THREADS_H_
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#include <sys/types.h>
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#include <time.h>
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typedef pthread_t thrd_t;
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typedef int (*thrd_start_t)(void *);
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enum {
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thrd_busy = 1,
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thrd_error = 2,
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thrd_nomem = 3,
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thrd_success = 4,
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thrd_timedout = 5
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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int thrd_create(thrd_t *thread, thrd_start_t, void *);
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thrd_t thrd_current(void);
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int thrd_detach(thrd_t);
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int thrd_equal(thrd_t, thrd_t);
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_Noreturn void
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thrd_exit(int);
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int thrd_join(thrd_t, int *);
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int thrd_sleep(const struct timespec *, struct timespec *);
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void thrd_yield(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _THREADS_H_ */
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#endif /* __GNUC__ > 2 */
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