0e3936c4f8
背景：
调度、线程、软件定时器、sortlink、percpu、异常、workqueue模块相互耦合，存在很多不属于本模块的实现，
导致这几个模块间依赖混乱、且到处引用其它模块的内部成员。
方案描述：
解决上述依赖混乱的问题，为后续调度框架打基础，优化后依赖关系：
| ---> los_swtmr_pri.h --> workqueue
los_sortlink_pri.h: ---> los_sched_pri.h --> los_task_pri.h -->
作为基础算法 | ---> ipc
(现在为双向链表),
做到功能最小化，
便于后续其它算法替换
调度框架大体方案描述：
1.cpu run queue ----> 任务延时队列
|---- 调度队列
|---- EDF --->
| |---- 方法(Delay、Suspend、Resume、EntReadyQue、Exit等)
|
| |---- 调度队列
2.task ---> 调度策略----> SCHED_RR --->
| |---- 方法(Delay、Suspend、Resume、EntReadyQue、Exit等)
|
| |---- 调度队列
|----> SCHED_IDLE --->
|---- 方法(Delay、Suspend、Resume、EntReadyQue、Exit等)
Close #I4RPRW
Signed-off-by: zhushengle <zhushengle@huawei.com>
Change-Id: Ia54dc1b8a4801a225a52e40555490c1dce0bd75e
121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* 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 LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "los_spinlock.h"
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#ifdef LOSCFG_KERNEL_SMP
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#include "los_sched_pri.h"
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VOID LOS_SpinInit(SPIN_LOCK_S *lock)
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{
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lock->rawLock = 0;
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lock->cpuid = (UINT32)-1;
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lock->owner = SPINLOCK_OWNER_INIT;
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lock->name = "spinlock";
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}
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BOOL LOS_SpinHeld(const SPIN_LOCK_S *lock)
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{
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return (lock->rawLock != 0);
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}
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VOID LOS_SpinLock(SPIN_LOCK_S *lock)
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{
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UINT32 intSave = LOS_IntLock();
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OsSchedLock();
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LOS_IntRestore(intSave);
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LOCKDEP_CHECK_IN(lock);
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ArchSpinLock(&lock->rawLock);
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LOCKDEP_RECORD(lock);
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}
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INT32 LOS_SpinTrylock(SPIN_LOCK_S *lock)
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{
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UINT32 intSave = LOS_IntLock();
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OsSchedLock();
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LOS_IntRestore(intSave);
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INT32 ret = ArchSpinTrylock(&lock->rawLock);
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if (ret == LOS_OK) {
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LOCKDEP_CHECK_IN(lock);
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LOCKDEP_RECORD(lock);
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return ret;
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}
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intSave = LOS_IntLock();
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BOOL needSched = OsSchedUnlockResch();
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LOS_IntRestore(intSave);
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if (needSched) {
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LOS_Schedule();
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}
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return ret;
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}
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VOID LOS_SpinUnlock(SPIN_LOCK_S *lock)
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{
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UINT32 intSave;
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LOCKDEP_CHECK_OUT(lock);
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ArchSpinUnlock(&lock->rawLock);
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intSave = LOS_IntLock();
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BOOL needSched = OsSchedUnlockResch();
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LOS_IntRestore(intSave);
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if (needSched) {
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LOS_Schedule();
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}
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}
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VOID LOS_SpinLockSave(SPIN_LOCK_S *lock, UINT32 *intSave)
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{
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*intSave = LOS_IntLock();
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OsSchedLock();
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LOCKDEP_CHECK_IN(lock);
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ArchSpinLock(&lock->rawLock);
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LOCKDEP_RECORD(lock);
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}
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VOID LOS_SpinUnlockRestore(SPIN_LOCK_S *lock, UINT32 intSave)
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{
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LOCKDEP_CHECK_OUT(lock);
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ArchSpinUnlock(&lock->rawLock);
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BOOL needSched = OsSchedUnlockResch();
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LOS_IntRestore(intSave);
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if (needSched) {
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LOS_Schedule();
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}
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}
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#endif
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