mirror of
https://github.com/eclipse-threadx/threadx.git
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120 lines
5.7 KiB
C
120 lines
5.7 KiB
C
/***************************************************************************
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* Copyright (c) 2024 Microsoft Corporation
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*
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* This program and the accompanying materials are made available under the
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* terms of the MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** POSIX wrapper for THREADX */
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/** */
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/** */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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/* Include necessary system files. */
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#include "tx_api.h" /* Threadx API */
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#include "pthread.h" /* Posix API */
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#include "px_int.h" /* Posix helper functions */
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* pthread_setschedparam PORTABLE C */
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/* 6.1.7 */
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/* AUTHOR */
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/* */
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/* William E. Lamie, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This function changes the scheduling parameters of a pthread. */
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/* */
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/* */
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/* INPUT */
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/* */
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/* thread POSIX thread ID */
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/* policy Address of the thread attributes */
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/* sched_param Address of structure to contain the */
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/* returned scheduling parameters */
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/* */
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/* */
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/* OUTPUT */
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/* */
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/* 0 if successful */
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/* Value in case of any error */
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/* */
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/* CALLS */
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/* */
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/* posix_tid2tcb */
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/* posix_tcb2thread */
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/* tx_thread_priority_change */
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/* */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 06-02-2021 William E. Lamie Initial Version 6.1.7 */
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/* */
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/**************************************************************************/
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INT pthread_setschedparam(pthread_t thread, INT policy, const struct sched_param *param)
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{
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TX_INTERRUPT_SAVE_AREA
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POSIX_TCB *thread_tcb;
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TX_THREAD *TheThread;
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UINT Tmp;
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ULONG UTmp;
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thread_tcb=posix_tid2tcb(thread);
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if(thread_tcb==NULL)
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{
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return(ESRCH);
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}
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if (!(( policy == SCHED_FIFO )||(policy== SCHED_RR)))
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{
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return(ENOTSUP);
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}
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TX_DISABLE
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thread_tcb->sched_policy=policy;
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thread_tcb->sched_attr.sched_priority=param->sched_priority;
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thread_tcb->current_priority= param->sched_priority;
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TheThread=posix_tcb2thread(thread_tcb);
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tx_thread_priority_change(TheThread, (TX_LOWEST_PRIORITY - thread_tcb->current_priority + 1),&Tmp);
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thread_tcb->orig_priority=(ULONG) Tmp;
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if(policy==SCHED_RR) thread_tcb->time_slice=SCHED_RR_TIME_SLICE;
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else thread_tcb->time_slice=0;
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tx_thread_time_slice_change(TheThread, thread_tcb->time_slice, &UTmp);
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TX_RESTORE
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return(NO_ERROR);
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}
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