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Move pthread mutex operations from kernel-space syscall interface to user-space implementations to reduce syscall overhead. Relocate mutex holder list tracking from task control block (tcb) to thread local storage (tls) to improve memory layout and cache efficiency. Add helper macros for conditional mutex implementations and update syscall interface accordingly. Signed-off-by: hujun5 <hujun5@xiaomi.com>
88 lines
2.9 KiB
C
88 lines
2.9 KiB
C
/****************************************************************************
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* sched/pthread/pthread.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __SCHED_PTHREAD_PTHREAD_H
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#define __SCHED_PTHREAD_PTHREAD_H
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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 <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <pthread.h>
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#include <nuttx/compiler.h>
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#include <nuttx/semaphore.h>
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#include <nuttx/sched.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define COND_WAIT_COUNT(cond) ((FAR atomic_t *)&(cond)->wait_count)
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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struct task_group_s; /* Forward reference */
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int pthread_setup_scheduler(FAR struct tcb_s *tcb, int priority,
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start_t start, pthread_startroutine_t entry);
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int pthread_completejoin(pid_t pid, FAR void *exit_value);
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void pthread_destroyjoin(FAR struct task_group_s *group,
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FAR struct task_join_s *pjoin);
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int pthread_findjoininfo(FAR struct task_group_s *group, pid_t pid,
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FAR struct task_join_s **join, bool create);
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void pthread_release(FAR struct task_group_s *group);
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#ifndef CONFIG_PTHREAD_MUTEX_UNSAFE
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void pthread_mutex_inconsistent(FAR struct tcb_s *tcb);
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#endif
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#ifdef CONFIG_PTHREAD_MUTEX_TYPES
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int pthread_mutexattr_verifytype(int type);
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#endif
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __SCHED_PTHREAD_PTHREAD_H */
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