170a50c690
sched/sched: Correct some build issues introduced by last set of changes.
sched/sched: Add new internal OS function nxsched_setaffinity() that is identical to sched_isetaffinity() except that it does not modify the errno value. All usage of sched_setaffinity() within the OS is replaced with nxsched_setaffinity().
sched/sched: Internal functions sched_reprioritize() and sched_setpriority() no longer movidify the errno value. Also renamed to nxsched_reprioritize() and sched_setpriority().
sched/sched: Add new internal OS function nxsched_getscheduler() that is identical to sched_getscheduler() except that it does not modify the errno value. All usage of sched_getscheduler() within the OS is replaced with nxsched_getscheduler().
sched/sched: Add new internal OS function nxsched_setparam() that is identical to sched_setparam() except that it does not modify the errno value. All usage of sched_setparam() within the OS is replaced with nxsched_setparam().
sched/sched: Add new internal OS function nxsched_getparam() that is identical to sched_getparam() except that it does not modify the errno value (actually, the previous value erroneously neglected to set the errno value to begin with, but this fixes both issues). All usage of sched_getparam() within the OS is replaced with nxsched_getparam().
127 lines
4.1 KiB
C
127 lines
4.1 KiB
C
/****************************************************************************
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* libc/string/lib_psa_init.c
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*
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* Copyright (C) 2013-2015, 2018 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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* 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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* 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 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
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sched.h>
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#include <spawn.h>
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#include <assert.h>
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#include <errno.h>
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#include <nuttx/sched.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: posix_spawnattr_init
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*
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* Description:
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* The posix_spawnattr_init() function initializes the object referenced
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* by attr, to an empty set of spawn attributes for subsequent use in a
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* call to posix_spawn() or posix_spawnp().
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*
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* Input Parameters:
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* attr - The address of the spawn attributes to be initialized.
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*
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* Returned Value:
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* On success, these functions return 0; on failure they return an error
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* number from <errno.h>.
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*
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****************************************************************************/
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int posix_spawnattr_init(posix_spawnattr_t *attr)
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{
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struct sched_param param;
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int ret;
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DEBUGASSERT(attr);
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/* Flags: None */
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attr->flags = 0;
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/* Set the default priority to the same priority as this task */
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ret = _SCHED_GETPARAM(0, ¶m);
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if (ret < 0)
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{
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return _SCHED_ERRNO(ret);
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}
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attr->priority = param.sched_priority;
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/* Set the default scheduler policy to the policy of this task */
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ret = _SCHED_GETSCHEDULER(0);
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if (ret < 0)
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{
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return _SCHED_ERRNO(ret);
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}
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attr->policy = ret;
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#ifndef CONFIG_DISABLE_SIGNALS
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/* Empty signal mask */
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attr->sigmask = 0;
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#endif
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#ifdef CONFIG_SCHED_SPORADIC
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/* Sporadic scheduling parameters */
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attr->low_priority = (uint8_t)param.sched_ss_low_priority;
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attr->max_repl = (uint8_t)param.sched_ss_max_repl;
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attr->repl_period.tv_sec = param.sched_ss_repl_period.tv_sec;
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attr->repl_period.tv_nsec = param.sched_ss_repl_period.tv_nsec;
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attr->budget.tv_sec = param.sched_ss_init_budget.tv_sec;
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attr->budget.tv_nsec = param.sched_ss_init_budget.tv_nsec;
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#endif
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#ifndef CONFIG_ARCH_ADDRENV
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/* Default stack size */
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attr->stacksize = CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE;
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#endif
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return OK;
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}
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