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535 lines
14 KiB
C
535 lines
14 KiB
C
/*
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* Copyright (c) 2003 Craig Rodrigues <rodrigc@attbi.com>.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Craig Rodrigues.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY CRAIG RODRIGUES 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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*/
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/*
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* Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>.
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* Copyright (C) 2001 Jason Evans <jasone@freebsd.org>.
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* Copyright (c) 2002,2003 Alexey Zelkin <phantom@FreeBSD.org>
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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(s), this list of conditions and the following disclaimer
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* unmodified other than the allowable addition of one or more
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* copyright notices.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice(s), 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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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by John Birrell.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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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#include <errno.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pthread_np.h>
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#include "thr_private.h"
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__weak_reference(_pthread_attr_destroy, pthread_attr_destroy);
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int
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_pthread_attr_destroy(pthread_attr_t *attr)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL)
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/* Invalid argument: */
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ret = EINVAL;
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else {
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/* Free the memory allocated to the attribute object: */
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free(*attr);
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/*
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* Leave the attribute pointer NULL now that the memory
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* has been freed:
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*/
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*attr = NULL;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_get_np, pthread_attr_get_np);
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int
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_pthread_attr_get_np(pthread_t pid, pthread_attr_t *dst)
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{
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struct pthread *curthread;
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struct pthread_attr attr;
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int ret;
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if (pid == NULL || dst == NULL || *dst == NULL)
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return (EINVAL);
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curthread = _get_curthread();
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if ((ret = _thr_ref_add(curthread, pid, /*include dead*/0)) != 0)
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return (ret);
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attr = pid->attr;
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if (pid->tlflags & TLFLAGS_DETACHED)
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attr.flags |= PTHREAD_DETACHED;
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_thr_ref_delete(curthread, pid);
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memcpy(*dst, &attr, sizeof(struct pthread_attr));
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return (0);
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}
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__weak_reference(_pthread_attr_getdetachstate, pthread_attr_getdetachstate);
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int
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_pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL || detachstate == NULL)
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ret = EINVAL;
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else {
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/* Check if the detached flag is set: */
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if ((*attr)->flags & PTHREAD_DETACHED)
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/* Return detached: */
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*detachstate = PTHREAD_CREATE_DETACHED;
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else
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/* Return joinable: */
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*detachstate = PTHREAD_CREATE_JOINABLE;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_getguardsize, pthread_attr_getguardsize);
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int
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_pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL || guardsize == NULL)
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ret = EINVAL;
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else {
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/* Return the guard size: */
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*guardsize = (*attr)->guardsize_attr;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_getinheritsched, pthread_attr_getinheritsched);
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int
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_pthread_attr_getinheritsched(const pthread_attr_t *attr, int *sched_inherit)
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{
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int ret = 0;
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if ((attr == NULL) || (*attr == NULL))
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ret = EINVAL;
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else
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*sched_inherit = (*attr)->sched_inherit;
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return(ret);
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}
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__weak_reference(_pthread_attr_getschedparam, pthread_attr_getschedparam);
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int
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_pthread_attr_getschedparam(const pthread_attr_t *attr, struct sched_param *param)
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{
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int ret = 0;
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if ((attr == NULL) || (*attr == NULL) || (param == NULL))
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ret = EINVAL;
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else
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param->sched_priority = (*attr)->prio;
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return(ret);
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}
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__weak_reference(_pthread_attr_getschedpolicy, pthread_attr_getschedpolicy);
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int
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_pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy)
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{
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int ret = 0;
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if ((attr == NULL) || (*attr == NULL) || (policy == NULL))
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ret = EINVAL;
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else
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*policy = (*attr)->sched_policy;
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return(ret);
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}
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__weak_reference(_pthread_attr_getscope, pthread_attr_getscope);
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int
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_pthread_attr_getscope(const pthread_attr_t *attr, int *contentionscope)
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{
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int ret = 0;
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if ((attr == NULL) || (*attr == NULL) || (contentionscope == NULL))
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/* Return an invalid argument: */
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ret = EINVAL;
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else
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*contentionscope = (*attr)->flags & PTHREAD_SCOPE_SYSTEM ?
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PTHREAD_SCOPE_SYSTEM : PTHREAD_SCOPE_PROCESS;
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return(ret);
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}
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__weak_reference(_pthread_attr_getstack, pthread_attr_getstack);
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int
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_pthread_attr_getstack(const pthread_attr_t * __restrict attr,
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void ** __restrict stackaddr,
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size_t * __restrict stacksize)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL || stackaddr == NULL
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|| stacksize == NULL )
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ret = EINVAL;
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else {
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/* Return the stack address and size */
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*stackaddr = (*attr)->stackaddr_attr;
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*stacksize = (*attr)->stacksize_attr;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_getstackaddr, pthread_attr_getstackaddr);
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int
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_pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL || stackaddr == NULL)
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ret = EINVAL;
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else {
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/* Return the stack address: */
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*stackaddr = (*attr)->stackaddr_attr;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_getstacksize, pthread_attr_getstacksize);
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int
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_pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL || stacksize == NULL)
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ret = EINVAL;
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else {
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/* Return the stack size: */
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*stacksize = (*attr)->stacksize_attr;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_init, pthread_attr_init);
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int
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_pthread_attr_init(pthread_attr_t *attr)
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{
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int ret;
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pthread_attr_t pattr;
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_thr_check_init();
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/* Allocate memory for the attribute object: */
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if ((pattr = (pthread_attr_t) malloc(sizeof(struct pthread_attr))) == NULL)
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/* Insufficient memory: */
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ret = ENOMEM;
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else {
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/* Initialise the attribute object with the defaults: */
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memcpy(pattr, &_pthread_attr_default, sizeof(struct pthread_attr));
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/* Return a pointer to the attribute object: */
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*attr = pattr;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_setcreatesuspend_np, pthread_attr_setcreatesuspend_np);
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int
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_pthread_attr_setcreatesuspend_np(pthread_attr_t *attr)
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{
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int ret;
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if (attr == NULL || *attr == NULL) {
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ret = EINVAL;
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} else {
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(*attr)->suspend = THR_CREATE_SUSPENDED;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_setdetachstate, pthread_attr_setdetachstate);
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int
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_pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL ||
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(detachstate != PTHREAD_CREATE_DETACHED &&
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detachstate != PTHREAD_CREATE_JOINABLE))
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ret = EINVAL;
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else {
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/* Check if detached state: */
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if (detachstate == PTHREAD_CREATE_DETACHED)
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/* Set the detached flag: */
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(*attr)->flags |= PTHREAD_DETACHED;
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else
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/* Reset the detached flag: */
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(*attr)->flags &= ~PTHREAD_DETACHED;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_setguardsize, pthread_attr_setguardsize);
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int
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_pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize)
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{
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int ret;
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/* Check for invalid arguments. */
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if (attr == NULL || *attr == NULL)
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ret = EINVAL;
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else {
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/* Save the stack size. */
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(*attr)->guardsize_attr = guardsize;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_setinheritsched, pthread_attr_setinheritsched);
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int
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_pthread_attr_setinheritsched(pthread_attr_t *attr, int sched_inherit)
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{
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int ret = 0;
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if ((attr == NULL) || (*attr == NULL))
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ret = EINVAL;
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else if (sched_inherit != PTHREAD_INHERIT_SCHED &&
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sched_inherit != PTHREAD_EXPLICIT_SCHED)
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ret = ENOTSUP;
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else
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(*attr)->sched_inherit = sched_inherit;
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return(ret);
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}
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__weak_reference(_pthread_attr_setschedparam, pthread_attr_setschedparam);
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int
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_pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param)
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{
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int ret = 0;
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if ((attr == NULL) || (*attr == NULL))
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ret = EINVAL;
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else if (param == NULL) {
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ret = ENOTSUP;
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} else if ((param->sched_priority < THR_MIN_PRIORITY) ||
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(param->sched_priority > THR_MAX_PRIORITY)) {
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/* Return an unsupported value error. */
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ret = ENOTSUP;
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} else
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(*attr)->prio = param->sched_priority;
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return(ret);
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}
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__weak_reference(_pthread_attr_setschedpolicy, pthread_attr_setschedpolicy);
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int
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_pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
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{
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int ret = 0;
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if ((attr == NULL) || (*attr == NULL))
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ret = EINVAL;
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else if ((policy < SCHED_FIFO) || (policy > SCHED_RR)) {
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ret = ENOTSUP;
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} else
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(*attr)->sched_policy = policy;
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return(ret);
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}
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__weak_reference(_pthread_attr_setscope, pthread_attr_setscope);
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int
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_pthread_attr_setscope(pthread_attr_t *attr, int contentionscope)
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{
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int ret = 0;
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if ((attr == NULL) || (*attr == NULL)) {
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/* Return an invalid argument: */
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ret = EINVAL;
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} else if ((contentionscope != PTHREAD_SCOPE_PROCESS) &&
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(contentionscope != PTHREAD_SCOPE_SYSTEM)) {
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ret = EINVAL;
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} else if (contentionscope == PTHREAD_SCOPE_SYSTEM) {
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(*attr)->flags |= contentionscope;
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} else {
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(*attr)->flags &= ~PTHREAD_SCOPE_SYSTEM;
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}
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return (ret);
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}
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__weak_reference(_pthread_attr_setstack, pthread_attr_setstack);
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int
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_pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr,
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size_t stacksize)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL || stackaddr == NULL
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|| stacksize < PTHREAD_STACK_MIN)
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ret = EINVAL;
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else {
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/* Save the stack address and stack size */
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(*attr)->stackaddr_attr = stackaddr;
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(*attr)->stacksize_attr = stacksize;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_setstackaddr, pthread_attr_setstackaddr);
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int
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_pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL || stackaddr == NULL)
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ret = EINVAL;
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else {
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/* Save the stack address: */
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(*attr)->stackaddr_attr = stackaddr;
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ret = 0;
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}
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return(ret);
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}
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__weak_reference(_pthread_attr_setstacksize, pthread_attr_setstacksize);
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int
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_pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize)
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{
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int ret;
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/* Check for invalid arguments: */
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if (attr == NULL || *attr == NULL || stacksize < PTHREAD_STACK_MIN)
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ret = EINVAL;
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else {
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/* Save the stack size: */
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(*attr)->stacksize_attr = stacksize;
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ret = 0;
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}
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return(ret);
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}
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