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1692 lines
47 KiB
1692 lines
47 KiB
/*
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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_task_pri.h"
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#include "los_base_pri.h"
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#include "los_event_pri.h"
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#include "los_exc.h"
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#include "los_hw_pri.h"
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#include "los_init.h"
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#include "los_memstat_pri.h"
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#include "los_mp.h"
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#include "los_mux_pri.h"
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#include "los_sched_pri.h"
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#include "los_sem_pri.h"
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#include "los_spinlock.h"
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#include "los_strncpy_from_user.h"
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#include "los_percpu_pri.h"
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#include "los_process_pri.h"
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#include "los_vm_map.h"
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#include "los_vm_syscall.h"
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#include "los_signal.h"
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#include "los_hook.h"
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#ifdef LOSCFG_KERNEL_CPUP
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#include "los_cpup_pri.h"
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#endif
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#ifdef LOSCFG_BASE_CORE_SWTMR_ENABLE
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#include "los_swtmr_pri.h"
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#endif
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#ifdef LOSCFG_KERNEL_LITEIPC
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#include "hm_liteipc.h"
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#endif
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#ifdef LOSCFG_ENABLE_OOM_LOOP_TASK
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#include "los_oom.h"
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#endif
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#if (LOSCFG_BASE_CORE_TSK_LIMIT <= 0)
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#error "task maxnum cannot be zero"
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#endif /* LOSCFG_BASE_CORE_TSK_LIMIT <= 0 */
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LITE_OS_SEC_BSS LosTaskCB *g_taskCBArray;
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LITE_OS_SEC_BSS LOS_DL_LIST g_losFreeTask;
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LITE_OS_SEC_BSS LOS_DL_LIST g_taskRecycleList;
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LITE_OS_SEC_BSS UINT32 g_taskMaxNum;
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LITE_OS_SEC_BSS UINT32 g_taskScheduled; /* one bit for each cores */
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LITE_OS_SEC_BSS EVENT_CB_S g_resourceEvent;
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/* spinlock for task module, only available on SMP mode */
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LITE_OS_SEC_BSS SPIN_LOCK_INIT(g_taskSpin);
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STATIC VOID OsConsoleIDSetHook(UINT32 param1,
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UINT32 param2) __attribute__((weakref("OsSetConsoleID")));
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#define OS_CHECK_TASK_BLOCK (OS_TASK_STATUS_DELAY | \
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OS_TASK_STATUS_PENDING | \
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OS_TASK_STATUS_SUSPENDED)
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/* temp task blocks for booting procedure */
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LITE_OS_SEC_BSS STATIC LosTaskCB g_mainTask[LOSCFG_KERNEL_CORE_NUM];
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LosTaskCB *OsGetMainTask()
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{
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return (LosTaskCB *)(g_mainTask + ArchCurrCpuid());
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}
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VOID OsSetMainTask()
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{
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UINT32 i;
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CHAR *name = "osMain";
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for (i = 0; i < LOSCFG_KERNEL_CORE_NUM; i++) {
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g_mainTask[i].taskStatus = OS_TASK_STATUS_UNUSED;
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g_mainTask[i].taskID = LOSCFG_BASE_CORE_TSK_LIMIT;
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g_mainTask[i].priority = OS_TASK_PRIORITY_LOWEST;
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#ifdef LOSCFG_KERNEL_SMP_LOCKDEP
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g_mainTask[i].lockDep.lockDepth = 0;
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g_mainTask[i].lockDep.waitLock = NULL;
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#endif
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(VOID)strncpy_s(g_mainTask[i].taskName, OS_TCB_NAME_LEN, name, OS_TCB_NAME_LEN - 1);
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LOS_ListInit(&g_mainTask[i].lockList);
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}
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}
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LITE_OS_SEC_TEXT WEAK VOID OsIdleTask(VOID)
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{
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while (1) {
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WFI;
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}
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}
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STATIC INLINE VOID OsInsertTCBToFreeList(LosTaskCB *taskCB)
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{
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UINT32 taskID = taskCB->taskID;
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(VOID)memset_s(taskCB, sizeof(LosTaskCB), 0, sizeof(LosTaskCB));
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taskCB->taskID = taskID;
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taskCB->taskStatus = OS_TASK_STATUS_UNUSED;
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taskCB->processID = OS_INVALID_VALUE;
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LOS_ListAdd(&g_losFreeTask, &taskCB->pendList);
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}
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LITE_OS_SEC_TEXT_INIT VOID OsTaskJoinPostUnsafe(LosTaskCB *taskCB)
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{
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LosTaskCB *resumedTask = NULL;
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if (taskCB->taskStatus & OS_TASK_FLAG_PTHREAD_JOIN) {
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if (!LOS_ListEmpty(&taskCB->joinList)) {
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resumedTask = OS_TCB_FROM_PENDLIST(LOS_DL_LIST_FIRST(&(taskCB->joinList)));
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OsTaskWakeClearPendMask(resumedTask);
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OsSchedTaskWake(resumedTask);
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}
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taskCB->taskStatus &= ~OS_TASK_FLAG_PTHREAD_JOIN;
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}
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taskCB->taskStatus |= OS_TASK_STATUS_EXIT;
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}
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LITE_OS_SEC_TEXT UINT32 OsTaskJoinPendUnsafe(LosTaskCB *taskCB)
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{
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LosProcessCB *processCB = OS_PCB_FROM_PID(taskCB->processID);
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if (!(processCB->processStatus & OS_PROCESS_STATUS_RUNNING)) {
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return LOS_EPERM;
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}
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if (taskCB->taskStatus & OS_TASK_STATUS_INIT) {
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return LOS_EINVAL;
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}
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if ((taskCB->taskStatus & OS_TASK_FLAG_PTHREAD_JOIN) && LOS_ListEmpty(&taskCB->joinList)) {
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OsTaskWaitSetPendMask(OS_TASK_WAIT_JOIN, taskCB->taskID, LOS_WAIT_FOREVER);
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return OsSchedTaskWait(&taskCB->joinList, LOS_WAIT_FOREVER, TRUE);
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} else if (taskCB->taskStatus & OS_TASK_STATUS_EXIT) {
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return LOS_OK;
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}
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return LOS_EINVAL;
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}
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LITE_OS_SEC_TEXT UINT32 OsTaskSetDetachUnsafe(LosTaskCB *taskCB)
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{
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LosProcessCB *processCB = OS_PCB_FROM_PID(taskCB->processID);
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if (!(processCB->processStatus & OS_PROCESS_STATUS_RUNNING)) {
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return LOS_EPERM;
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}
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if (taskCB->taskStatus & OS_TASK_FLAG_PTHREAD_JOIN) {
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if (LOS_ListEmpty(&(taskCB->joinList))) {
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LOS_ListDelete(&(taskCB->joinList));
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taskCB->taskStatus &= ~OS_TASK_FLAG_PTHREAD_JOIN;
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taskCB->taskStatus |= OS_TASK_FLAG_DETACHED;
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return LOS_OK;
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}
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/* This error code has a special purpose and is not allowed to appear again on the interface */
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return LOS_ESRCH;
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}
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return LOS_EINVAL;
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}
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LITE_OS_SEC_TEXT_INIT UINT32 OsTaskInit(VOID)
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{
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UINT32 index;
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UINT32 size;
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UINT32 ret;
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g_taskMaxNum = LOSCFG_BASE_CORE_TSK_LIMIT;
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size = (g_taskMaxNum + 1) * sizeof(LosTaskCB);
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/*
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* This memory is resident memory and is used to save the system resources
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* of task control block and will not be freed.
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*/
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g_taskCBArray = (LosTaskCB *)LOS_MemAlloc(m_aucSysMem0, size);
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if (g_taskCBArray == NULL) {
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ret = LOS_ERRNO_TSK_NO_MEMORY;
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goto EXIT;
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}
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(VOID)memset_s(g_taskCBArray, size, 0, size);
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LOS_ListInit(&g_losFreeTask);
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LOS_ListInit(&g_taskRecycleList);
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for (index = 0; index < g_taskMaxNum; index++) {
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g_taskCBArray[index].taskStatus = OS_TASK_STATUS_UNUSED;
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g_taskCBArray[index].taskID = index;
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LOS_ListTailInsert(&g_losFreeTask, &g_taskCBArray[index].pendList);
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}
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ret = OsSchedInit();
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EXIT:
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if (ret != LOS_OK) {
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PRINT_ERR("OsTaskInit error\n");
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}
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return ret;
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}
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UINT32 OsGetIdleTaskId(VOID)
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{
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Percpu *perCpu = OsPercpuGet();
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return perCpu->idleTaskID;
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}
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LITE_OS_SEC_TEXT_INIT UINT32 OsIdleTaskCreate(VOID)
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{
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UINT32 ret;
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TSK_INIT_PARAM_S taskInitParam;
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Percpu *perCpu = OsPercpuGet();
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UINT32 *idleTaskID = &perCpu->idleTaskID;
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(VOID)memset_s((VOID *)(&taskInitParam), sizeof(TSK_INIT_PARAM_S), 0, sizeof(TSK_INIT_PARAM_S));
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taskInitParam.pfnTaskEntry = (TSK_ENTRY_FUNC)OsIdleTask;
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taskInitParam.uwStackSize = LOSCFG_BASE_CORE_TSK_IDLE_STACK_SIZE;
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taskInitParam.pcName = "Idle";
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taskInitParam.usTaskPrio = OS_TASK_PRIORITY_LOWEST;
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taskInitParam.processID = OsGetIdleProcessID();
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#ifdef LOSCFG_KERNEL_SMP
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taskInitParam.usCpuAffiMask = CPUID_TO_AFFI_MASK(ArchCurrCpuid());
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#endif
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ret = LOS_TaskCreateOnly(idleTaskID, &taskInitParam);
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LosTaskCB *idleTask = OS_TCB_FROM_TID(*idleTaskID);
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idleTask->taskStatus |= OS_TASK_FLAG_SYSTEM_TASK;
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OsSchedSetIdleTaskSchedParam(idleTask);
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return ret;
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}
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/*
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* Description : get id of current running task.
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* Return : task id
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*/
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LITE_OS_SEC_TEXT UINT32 LOS_CurTaskIDGet(VOID)
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{
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LosTaskCB *runTask = OsCurrTaskGet();
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if (runTask == NULL) {
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return LOS_ERRNO_TSK_ID_INVALID;
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}
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return runTask->taskID;
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}
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LITE_OS_SEC_TEXT VOID OsTaskToExit(LosTaskCB *taskCB, UINT32 status)
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{
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UINT32 intSave;
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LosProcessCB *runProcess = OS_PCB_FROM_PID(taskCB->processID);
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LosTaskCB *mainTask = OS_TCB_FROM_TID(runProcess->threadGroupID);
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if (mainTask == taskCB) {
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OsTaskExitGroup(status);
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}
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SCHEDULER_LOCK(intSave);
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if (runProcess->threadNumber == 1) { /* 1: The last task of the process exits */
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SCHEDULER_UNLOCK(intSave);
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(VOID)OsProcessExit(taskCB, status);
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return;
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}
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/* The thread being killed must be able to exit automatically and will have the detached property */
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OsTaskJoinPostUnsafe(taskCB);
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if (taskCB->taskStatus & (OS_TASK_FLAG_DETACHED | OS_TASK_FLAG_EXIT_KILL)) {
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UINT32 ret = OsTaskDeleteUnsafe(taskCB, status, intSave);
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LOS_Panic("Task delete failed! ERROR : 0x%x\n", ret);
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}
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OsSchedResched();
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SCHEDULER_UNLOCK(intSave);
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return;
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}
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/*
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* Description : All task entry
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* Input : taskID --- The ID of the task to be run
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*/
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LITE_OS_SEC_TEXT_INIT VOID OsTaskEntry(UINT32 taskID)
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{
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LosTaskCB *taskCB = NULL;
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LOS_ASSERT(!OS_TID_CHECK_INVALID(taskID));
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/*
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* task scheduler needs to be protected throughout the whole process
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* from interrupt and other cores. release task spinlock and enable
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* interrupt in sequence at the task entry.
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*/
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LOS_SpinUnlock(&g_taskSpin);
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(VOID)LOS_IntUnLock();
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taskCB = OS_TCB_FROM_TID(taskID);
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taskCB->joinRetval = taskCB->taskEntry(taskCB->args[0], taskCB->args[1],
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taskCB->args[2], taskCB->args[3]); /* 2 & 3: just for args array index */
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if (taskCB->taskStatus & OS_TASK_FLAG_DETACHED) {
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taskCB->joinRetval = 0;
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}
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OsTaskToExit(taskCB, 0);
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}
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LITE_OS_SEC_TEXT_INIT STATIC UINT32 OsTaskCreateParamCheck(const UINT32 *taskID,
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TSK_INIT_PARAM_S *initParam, VOID **pool)
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{
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LosProcessCB *process = NULL;
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UINT32 poolSize = OS_SYS_MEM_SIZE;
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*pool = (VOID *)m_aucSysMem1;
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if (taskID == NULL) {
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return LOS_ERRNO_TSK_ID_INVALID;
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}
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if (initParam == NULL) {
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return LOS_ERRNO_TSK_PTR_NULL;
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}
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process = OS_PCB_FROM_PID(initParam->processID);
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if (process->processMode > OS_USER_MODE) {
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return LOS_ERRNO_TSK_ID_INVALID;
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}
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if (!OsProcessIsUserMode(process)) {
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if (initParam->pcName == NULL) {
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return LOS_ERRNO_TSK_NAME_EMPTY;
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}
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}
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if (initParam->pfnTaskEntry == NULL) {
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return LOS_ERRNO_TSK_ENTRY_NULL;
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}
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if (initParam->usTaskPrio > OS_TASK_PRIORITY_LOWEST) {
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return LOS_ERRNO_TSK_PRIOR_ERROR;
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}
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if (initParam->uwStackSize > poolSize) {
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return LOS_ERRNO_TSK_STKSZ_TOO_LARGE;
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}
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if (initParam->uwStackSize == 0) {
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initParam->uwStackSize = LOSCFG_BASE_CORE_TSK_DEFAULT_STACK_SIZE;
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}
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initParam->uwStackSize = (UINT32)ALIGN(initParam->uwStackSize, LOSCFG_STACK_POINT_ALIGN_SIZE);
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if (initParam->uwStackSize < LOS_TASK_MIN_STACK_SIZE) {
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return LOS_ERRNO_TSK_STKSZ_TOO_SMALL;
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}
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return LOS_OK;
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}
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LITE_OS_SEC_TEXT_INIT STATIC VOID OsTaskStackAlloc(VOID **topStack, UINT32 stackSize, VOID *pool)
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{
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*topStack = (VOID *)LOS_MemAllocAlign(pool, stackSize, LOSCFG_STACK_POINT_ALIGN_SIZE);
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}
|
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STATIC INLINE UINT32 OsTaskSyncCreate(LosTaskCB *taskCB)
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{
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#ifdef LOSCFG_KERNEL_SMP_TASK_SYNC
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UINT32 ret = LOS_SemCreate(0, &taskCB->syncSignal);
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if (ret != LOS_OK) {
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return LOS_ERRNO_TSK_MP_SYNC_RESOURCE;
|
|
}
|
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#else
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(VOID)taskCB;
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#endif
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return LOS_OK;
|
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}
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STATIC INLINE VOID OsTaskSyncDestroy(UINT32 syncSignal)
|
|
{
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|
#ifdef LOSCFG_KERNEL_SMP_TASK_SYNC
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(VOID)LOS_SemDelete(syncSignal);
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|
#else
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(VOID)syncSignal;
|
|
#endif
|
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}
|
|
|
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LITE_OS_SEC_TEXT UINT32 OsTaskSyncWait(const LosTaskCB *taskCB)
|
|
{
|
|
#ifdef LOSCFG_KERNEL_SMP_TASK_SYNC
|
|
UINT32 ret = LOS_OK;
|
|
|
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LOS_ASSERT(LOS_SpinHeld(&g_taskSpin));
|
|
LOS_SpinUnlock(&g_taskSpin);
|
|
/*
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|
* gc soft timer works every OS_MP_GC_PERIOD period, to prevent this timer
|
|
* triggered right at the timeout has reached, we set the timeout as double
|
|
* of the gc peroid.
|
|
*/
|
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if (LOS_SemPend(taskCB->syncSignal, OS_MP_GC_PERIOD * 2) != LOS_OK) {
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ret = LOS_ERRNO_TSK_MP_SYNC_FAILED;
|
|
}
|
|
|
|
LOS_SpinLock(&g_taskSpin);
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|
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return ret;
|
|
#else
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(VOID)taskCB;
|
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return LOS_OK;
|
|
#endif
|
|
}
|
|
|
|
STATIC INLINE VOID OsTaskSyncWake(const LosTaskCB *taskCB)
|
|
{
|
|
#ifdef LOSCFG_KERNEL_SMP_TASK_SYNC
|
|
(VOID)OsSemPostUnsafe(taskCB->syncSignal, NULL);
|
|
#else
|
|
(VOID)taskCB;
|
|
#endif
|
|
}
|
|
|
|
STATIC VOID OsTaskKernelResourcesToFree(UINT32 syncSignal, UINTPTR topOfStack)
|
|
{
|
|
VOID *poolTmp = (VOID *)m_aucSysMem1;
|
|
|
|
OsTaskSyncDestroy(syncSignal);
|
|
|
|
(VOID)LOS_MemFree(poolTmp, (VOID *)topOfStack);
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT VOID OsTaskCBRecycleToFree()
|
|
{
|
|
LosTaskCB *taskCB = NULL;
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UINT32 intSave;
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
while (!LOS_ListEmpty(&g_taskRecycleList)) {
|
|
taskCB = OS_TCB_FROM_PENDLIST(LOS_DL_LIST_FIRST(&g_taskRecycleList));
|
|
LOS_ListDelete(&taskCB->pendList);
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|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
OsTaskResourcesToFree(taskCB);
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
}
|
|
SCHEDULER_UNLOCK(intSave);
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT VOID OsTaskResourcesToFree(LosTaskCB *taskCB)
|
|
{
|
|
UINT32 syncSignal = LOSCFG_BASE_IPC_SEM_LIMIT;
|
|
UINT32 intSave;
|
|
UINTPTR topOfStack;
|
|
|
|
#ifdef LOSCFG_KERNEL_VM
|
|
LosProcessCB *processCB = OS_PCB_FROM_PID(taskCB->processID);
|
|
if (OsProcessIsUserMode(processCB) && (taskCB->userMapBase != 0)) {
|
|
SCHEDULER_LOCK(intSave);
|
|
UINT32 mapBase = (UINTPTR)taskCB->userMapBase;
|
|
UINT32 mapSize = taskCB->userMapSize;
|
|
taskCB->userMapBase = 0;
|
|
taskCB->userArea = 0;
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
LOS_ASSERT(!(processCB->vmSpace == NULL));
|
|
UINT32 ret = OsUnMMap(processCB->vmSpace, (UINTPTR)mapBase, mapSize);
|
|
if ((ret != LOS_OK) && (mapBase != 0) && !(processCB->processStatus & OS_PROCESS_STATUS_INIT)) {
|
|
PRINT_ERR("process(%u) ummap user task(%u) stack failed! mapbase: 0x%x size :0x%x, error: %d\n",
|
|
processCB->processID, taskCB->taskID, mapBase, mapSize, ret);
|
|
}
|
|
|
|
#ifdef LOSCFG_KERNEL_LITEIPC
|
|
LiteIpcRemoveServiceHandle(taskCB);
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
topOfStack = taskCB->topOfStack;
|
|
taskCB->topOfStack = 0;
|
|
#ifdef LOSCFG_KERNEL_SMP_TASK_SYNC
|
|
syncSignal = taskCB->syncSignal;
|
|
taskCB->syncSignal = LOSCFG_BASE_IPC_SEM_LIMIT;
|
|
#endif
|
|
OsTaskKernelResourcesToFree(syncSignal, topOfStack);
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
OsClearSigInfoTmpList(&(taskCB->sig));
|
|
OsInsertTCBToFreeList(taskCB);
|
|
SCHEDULER_UNLOCK(intSave);
|
|
}
|
|
return;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_INIT STATIC VOID OsTaskCBInitBase(LosTaskCB *taskCB,
|
|
const VOID *stackPtr,
|
|
const VOID *topStack,
|
|
const TSK_INIT_PARAM_S *initParam)
|
|
{
|
|
taskCB->stackPointer = (VOID *)stackPtr;
|
|
taskCB->args[0] = initParam->auwArgs[0]; /* 0~3: just for args array index */
|
|
taskCB->args[1] = initParam->auwArgs[1];
|
|
taskCB->args[2] = initParam->auwArgs[2];
|
|
taskCB->args[3] = initParam->auwArgs[3];
|
|
taskCB->topOfStack = (UINTPTR)topStack;
|
|
taskCB->stackSize = initParam->uwStackSize;
|
|
taskCB->priority = initParam->usTaskPrio;
|
|
taskCB->taskEntry = initParam->pfnTaskEntry;
|
|
taskCB->signal = SIGNAL_NONE;
|
|
|
|
#ifdef LOSCFG_KERNEL_SMP
|
|
taskCB->currCpu = OS_TASK_INVALID_CPUID;
|
|
taskCB->cpuAffiMask = (initParam->usCpuAffiMask) ?
|
|
initParam->usCpuAffiMask : LOSCFG_KERNEL_CPU_MASK;
|
|
#endif
|
|
#ifdef LOSCFG_KERNEL_LITEIPC
|
|
LOS_ListInit(&(taskCB->msgListHead));
|
|
#endif
|
|
taskCB->policy = (initParam->policy == LOS_SCHED_FIFO) ? LOS_SCHED_FIFO : LOS_SCHED_RR;
|
|
taskCB->taskStatus = OS_TASK_STATUS_INIT;
|
|
if (initParam->uwResved & OS_TASK_FLAG_DETACHED) {
|
|
taskCB->taskStatus |= OS_TASK_FLAG_DETACHED;
|
|
} else {
|
|
taskCB->taskStatus |= OS_TASK_FLAG_PTHREAD_JOIN;
|
|
LOS_ListInit(&taskCB->joinList);
|
|
}
|
|
|
|
taskCB->futex.index = OS_INVALID_VALUE;
|
|
LOS_ListInit(&taskCB->lockList);
|
|
SET_SORTLIST_VALUE(&taskCB->sortList, OS_SORT_LINK_INVALID_TIME);
|
|
}
|
|
|
|
STATIC UINT32 OsTaskCBInit(LosTaskCB *taskCB, const TSK_INIT_PARAM_S *initParam,
|
|
const VOID *stackPtr, const VOID *topStack)
|
|
{
|
|
UINT32 intSave;
|
|
UINT32 ret;
|
|
UINT32 numCount;
|
|
UINT16 mode;
|
|
LosProcessCB *processCB = NULL;
|
|
|
|
OsTaskCBInitBase(taskCB, stackPtr, topStack, initParam);
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
processCB = OS_PCB_FROM_PID(initParam->processID);
|
|
taskCB->processID = processCB->processID;
|
|
mode = processCB->processMode;
|
|
LOS_ListTailInsert(&(processCB->threadSiblingList), &(taskCB->threadList));
|
|
if (mode == OS_USER_MODE) {
|
|
taskCB->userArea = initParam->userParam.userArea;
|
|
taskCB->userMapBase = initParam->userParam.userMapBase;
|
|
taskCB->userMapSize = initParam->userParam.userMapSize;
|
|
OsUserTaskStackInit(taskCB->stackPointer, (UINTPTR)taskCB->taskEntry, initParam->userParam.userSP);
|
|
}
|
|
|
|
if (!processCB->threadNumber) {
|
|
processCB->threadGroupID = taskCB->taskID;
|
|
}
|
|
processCB->threadNumber++;
|
|
|
|
numCount = processCB->threadCount;
|
|
processCB->threadCount++;
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
if (initParam->pcName != NULL) {
|
|
ret = (UINT32)OsSetTaskName(taskCB, initParam->pcName, FALSE);
|
|
if (ret == LOS_OK) {
|
|
return LOS_OK;
|
|
}
|
|
}
|
|
|
|
if (snprintf_s(taskCB->taskName, OS_TCB_NAME_LEN, OS_TCB_NAME_LEN - 1, "thread%u", numCount) < 0) {
|
|
return LOS_NOK;
|
|
}
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT LosTaskCB *OsGetFreeTaskCB(VOID)
|
|
{
|
|
UINT32 intSave;
|
|
LosTaskCB *taskCB = NULL;
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
if (LOS_ListEmpty(&g_losFreeTask)) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
PRINT_ERR("No idle TCB in the system!\n");
|
|
#ifdef LOSCFG_DEBUG_VERSION
|
|
(VOID)OsShellCmdTskInfoGet(OS_ALL_TASK_MASK, NULL, OS_PROCESS_INFO_ALL);
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_PENDLIST(LOS_DL_LIST_FIRST(&g_losFreeTask));
|
|
LOS_ListDelete(LOS_DL_LIST_FIRST(&g_losFreeTask));
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
return taskCB;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_INIT UINT32 LOS_TaskCreateOnly(UINT32 *taskID, TSK_INIT_PARAM_S *initParam)
|
|
{
|
|
UINT32 intSave, errRet;
|
|
VOID *topStack = NULL;
|
|
VOID *stackPtr = NULL;
|
|
LosTaskCB *taskCB = NULL;
|
|
VOID *pool = NULL;
|
|
|
|
errRet = OsTaskCreateParamCheck(taskID, initParam, &pool);
|
|
if (errRet != LOS_OK) {
|
|
return errRet;
|
|
}
|
|
|
|
taskCB = OsGetFreeTaskCB();
|
|
if (taskCB == NULL) {
|
|
errRet = LOS_ERRNO_TSK_TCB_UNAVAILABLE;
|
|
goto LOS_ERREND;
|
|
}
|
|
|
|
errRet = OsTaskSyncCreate(taskCB);
|
|
if (errRet != LOS_OK) {
|
|
goto LOS_ERREND_REWIND_TCB;
|
|
}
|
|
|
|
OsTaskStackAlloc(&topStack, initParam->uwStackSize, pool);
|
|
if (topStack == NULL) {
|
|
errRet = LOS_ERRNO_TSK_NO_MEMORY;
|
|
goto LOS_ERREND_REWIND_SYNC;
|
|
}
|
|
|
|
stackPtr = OsTaskStackInit(taskCB->taskID, initParam->uwStackSize, topStack, TRUE);
|
|
errRet = OsTaskCBInit(taskCB, initParam, stackPtr, topStack);
|
|
if (errRet != LOS_OK) {
|
|
goto LOS_ERREND_TCB_INIT;
|
|
}
|
|
if (OsConsoleIDSetHook != NULL) {
|
|
OsConsoleIDSetHook(taskCB->taskID, OsCurrTaskGet()->taskID);
|
|
}
|
|
|
|
*taskID = taskCB->taskID;
|
|
OsHookCall(LOS_HOOK_TYPE_TASK_CREATE, taskCB);
|
|
return LOS_OK;
|
|
|
|
LOS_ERREND_TCB_INIT:
|
|
(VOID)LOS_MemFree(pool, topStack);
|
|
LOS_ERREND_REWIND_SYNC:
|
|
#ifdef LOSCFG_KERNEL_SMP_TASK_SYNC
|
|
OsTaskSyncDestroy(taskCB->syncSignal);
|
|
#endif
|
|
LOS_ERREND_REWIND_TCB:
|
|
SCHEDULER_LOCK(intSave);
|
|
OsInsertTCBToFreeList(taskCB);
|
|
SCHEDULER_UNLOCK(intSave);
|
|
LOS_ERREND:
|
|
return errRet;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_INIT UINT32 LOS_TaskCreate(UINT32 *taskID, TSK_INIT_PARAM_S *initParam)
|
|
{
|
|
UINT32 ret;
|
|
UINT32 intSave;
|
|
LosTaskCB *taskCB = NULL;
|
|
|
|
if (initParam == NULL) {
|
|
return LOS_ERRNO_TSK_PTR_NULL;
|
|
}
|
|
|
|
if (OS_INT_ACTIVE) {
|
|
return LOS_ERRNO_TSK_YIELD_IN_INT;
|
|
}
|
|
|
|
if (OsProcessIsUserMode(OsCurrProcessGet())) {
|
|
initParam->processID = OsGetKernelInitProcessID();
|
|
} else {
|
|
initParam->processID = OsCurrProcessGet()->processID;
|
|
}
|
|
initParam->uwResved &= ~OS_TASK_FLAG_PTHREAD_JOIN;
|
|
if (initParam->uwResved & LOS_TASK_STATUS_DETACHED) {
|
|
initParam->uwResved = OS_TASK_FLAG_DETACHED;
|
|
}
|
|
|
|
ret = LOS_TaskCreateOnly(taskID, initParam);
|
|
if (ret != LOS_OK) {
|
|
return ret;
|
|
}
|
|
taskCB = OS_TCB_FROM_TID(*taskID);
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
OsSchedTaskEnQueue(taskCB);
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
/* in case created task not running on this core,
|
|
schedule or not depends on other schedulers status. */
|
|
LOS_MpSchedule(OS_MP_CPU_ALL);
|
|
if (OS_SCHEDULER_ACTIVE) {
|
|
LOS_Schedule();
|
|
}
|
|
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_INIT UINT32 LOS_TaskResume(UINT32 taskID)
|
|
{
|
|
UINT32 intSave;
|
|
UINT32 errRet;
|
|
LosTaskCB *taskCB = NULL;
|
|
BOOL needSched = FALSE;
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return LOS_ERRNO_TSK_ID_INVALID;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_TID(taskID);
|
|
SCHEDULER_LOCK(intSave);
|
|
|
|
/* clear pending signal */
|
|
taskCB->signal &= ~SIGNAL_SUSPEND;
|
|
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
errRet = LOS_ERRNO_TSK_NOT_CREATED;
|
|
OS_GOTO_ERREND();
|
|
} else if (!(taskCB->taskStatus & OS_TASK_STATUS_SUSPENDED)) {
|
|
errRet = LOS_ERRNO_TSK_NOT_SUSPENDED;
|
|
OS_GOTO_ERREND();
|
|
}
|
|
|
|
taskCB->taskStatus &= ~OS_TASK_STATUS_SUSPENDED;
|
|
if (!(taskCB->taskStatus & OS_CHECK_TASK_BLOCK)) {
|
|
OsSchedTaskEnQueue(taskCB);
|
|
if (OS_SCHEDULER_ACTIVE) {
|
|
needSched = TRUE;
|
|
}
|
|
}
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
LOS_MpSchedule(OS_MP_CPU_ALL);
|
|
if (needSched) {
|
|
LOS_Schedule();
|
|
}
|
|
|
|
return LOS_OK;
|
|
|
|
LOS_ERREND:
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return errRet;
|
|
}
|
|
|
|
/*
|
|
* Check if needs to do the suspend operation on the running task.
|
|
* Return TRUE, if needs to do the suspension.
|
|
* Return FALSE, if meets following circumstances:
|
|
* 1. Do the suspension across cores, if SMP is enabled
|
|
* 2. Do the suspension when preemption is disabled
|
|
* 3. Do the suspension in hard-irq
|
|
* then LOS_TaskSuspend will directly return with 'ret' value.
|
|
*/
|
|
LITE_OS_SEC_TEXT_INIT STATIC BOOL OsTaskSuspendCheckOnRun(LosTaskCB *taskCB, UINT32 *ret)
|
|
{
|
|
/* init default out return value */
|
|
*ret = LOS_OK;
|
|
|
|
#ifdef LOSCFG_KERNEL_SMP
|
|
/* ASYNCHRONIZED. No need to do task lock checking */
|
|
if (taskCB->currCpu != ArchCurrCpuid()) {
|
|
taskCB->signal = SIGNAL_SUSPEND;
|
|
LOS_MpSchedule(taskCB->currCpu);
|
|
return FALSE;
|
|
}
|
|
#endif
|
|
|
|
if (!OsPreemptableInSched()) {
|
|
/* Suspending the current core's running task */
|
|
*ret = LOS_ERRNO_TSK_SUSPEND_LOCKED;
|
|
return FALSE;
|
|
}
|
|
|
|
if (OS_INT_ACTIVE) {
|
|
/* suspend running task in interrupt */
|
|
taskCB->signal = SIGNAL_SUSPEND;
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT STATIC UINT32 OsTaskSuspend(LosTaskCB *taskCB)
|
|
{
|
|
UINT32 errRet;
|
|
UINT16 tempStatus;
|
|
|
|
tempStatus = taskCB->taskStatus;
|
|
if (tempStatus & OS_TASK_STATUS_UNUSED) {
|
|
return LOS_ERRNO_TSK_NOT_CREATED;
|
|
}
|
|
|
|
if (tempStatus & OS_TASK_STATUS_SUSPENDED) {
|
|
return LOS_ERRNO_TSK_ALREADY_SUSPENDED;
|
|
}
|
|
|
|
if ((tempStatus & OS_TASK_STATUS_RUNNING) &&
|
|
!OsTaskSuspendCheckOnRun(taskCB, &errRet)) {
|
|
return errRet;
|
|
}
|
|
|
|
if (tempStatus & OS_TASK_STATUS_READY) {
|
|
OsSchedTaskDeQueue(taskCB);
|
|
}
|
|
|
|
taskCB->taskStatus |= OS_TASK_STATUS_SUSPENDED;
|
|
OsHookCall(LOS_HOOK_TYPE_MOVEDTASKTOSUSPENDEDLIST, taskCB);
|
|
if (taskCB == OsCurrTaskGet()) {
|
|
OsSchedResched();
|
|
}
|
|
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_INIT UINT32 LOS_TaskSuspend(UINT32 taskID)
|
|
{
|
|
UINT32 intSave;
|
|
LosTaskCB *taskCB = NULL;
|
|
UINT32 errRet;
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return LOS_ERRNO_TSK_ID_INVALID;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_TID(taskID);
|
|
if (taskCB->taskStatus & OS_TASK_FLAG_SYSTEM_TASK) {
|
|
return LOS_ERRNO_TSK_OPERATE_SYSTEM_TASK;
|
|
}
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
errRet = OsTaskSuspend(taskCB);
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return errRet;
|
|
}
|
|
|
|
STATIC INLINE VOID OsTaskStatusUnusedSet(LosTaskCB *taskCB)
|
|
{
|
|
taskCB->taskStatus |= OS_TASK_STATUS_UNUSED;
|
|
taskCB->eventMask = 0;
|
|
|
|
OS_MEM_CLEAR(taskCB->taskID);
|
|
}
|
|
|
|
STATIC INLINE VOID OsTaskReleaseHoldLock(LosProcessCB *processCB, LosTaskCB *taskCB)
|
|
{
|
|
LosMux *mux = NULL;
|
|
UINT32 ret;
|
|
|
|
while (!LOS_ListEmpty(&taskCB->lockList)) {
|
|
mux = LOS_DL_LIST_ENTRY(LOS_DL_LIST_FIRST(&taskCB->lockList), LosMux, holdList);
|
|
ret = OsMuxUnlockUnsafe(taskCB, mux, NULL);
|
|
if (ret != LOS_OK) {
|
|
LOS_ListDelete(&mux->holdList);
|
|
PRINT_ERR("mux ulock failed! : %u\n", ret);
|
|
}
|
|
}
|
|
|
|
if (processCB->processMode == OS_USER_MODE) {
|
|
OsTaskJoinPostUnsafe(taskCB);
|
|
|
|
#ifdef LOSCFG_KERNEL_VM
|
|
OsFutexNodeDeleteFromFutexHash(&taskCB->futex, TRUE, NULL, NULL);
|
|
#endif
|
|
}
|
|
|
|
OsTaskSyncWake(taskCB);
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT VOID OsRunTaskToDelete(LosTaskCB *runTask)
|
|
{
|
|
LosProcessCB *processCB = OS_PCB_FROM_PID(runTask->processID);
|
|
|
|
OsTaskReleaseHoldLock(processCB, runTask);
|
|
OsTaskStatusUnusedSet(runTask);
|
|
|
|
LOS_ListDelete(&runTask->threadList);
|
|
processCB->threadNumber--;
|
|
LOS_ListTailInsert(&g_taskRecycleList, &runTask->pendList);
|
|
OsEventWriteUnsafe(&g_resourceEvent, OS_RESOURCE_EVENT_FREE, FALSE, NULL);
|
|
|
|
OsSchedResched();
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Check if needs to do the delete operation on the running task.
|
|
* Return TRUE, if needs to do the deletion.
|
|
* Return FALSE, if meets following circumstances:
|
|
* 1. Do the deletion across cores, if SMP is enabled
|
|
* 2. Do the deletion when preemption is disabled
|
|
* 3. Do the deletion in hard-irq
|
|
* then LOS_TaskDelete will directly return with 'ret' value.
|
|
*/
|
|
STATIC BOOL OsRunTaskToDeleteCheckOnRun(LosTaskCB *taskCB, UINT32 *ret)
|
|
{
|
|
/* init default out return value */
|
|
*ret = LOS_OK;
|
|
|
|
#ifdef LOSCFG_KERNEL_SMP
|
|
/* ASYNCHRONIZED. No need to do task lock checking */
|
|
if (taskCB->currCpu != ArchCurrCpuid()) {
|
|
/*
|
|
* the task is running on another cpu.
|
|
* mask the target task with "kill" signal, and trigger mp schedule
|
|
* which might not be essential but the deletion could more in time.
|
|
*/
|
|
taskCB->signal = SIGNAL_KILL;
|
|
LOS_MpSchedule(taskCB->currCpu);
|
|
*ret = OsTaskSyncWait(taskCB);
|
|
return FALSE;
|
|
}
|
|
#endif
|
|
|
|
if (!OsPreemptableInSched()) {
|
|
/* If the task is running and scheduler is locked then you can not delete it */
|
|
*ret = LOS_ERRNO_TSK_DELETE_LOCKED;
|
|
return FALSE;
|
|
}
|
|
|
|
if (OS_INT_ACTIVE) {
|
|
/*
|
|
* delete running task in interrupt.
|
|
* mask "kill" signal and later deletion will be handled.
|
|
*/
|
|
taskCB->signal = SIGNAL_KILL;
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
STATIC VOID OsTaskDeleteInactive(LosProcessCB *processCB, LosTaskCB *taskCB)
|
|
{
|
|
LosMux *mux = (LosMux *)taskCB->taskMux;
|
|
UINT16 taskStatus = taskCB->taskStatus;
|
|
|
|
LOS_ASSERT(!(taskStatus & OS_TASK_STATUS_RUNNING));
|
|
|
|
OsTaskReleaseHoldLock(processCB, taskCB);
|
|
|
|
OsSchedTaskExit(taskCB);
|
|
if (taskStatus & OS_TASK_STATUS_PENDING) {
|
|
if (LOS_MuxIsValid(mux) == TRUE) {
|
|
OsMuxBitmapRestore(mux, taskCB, (LosTaskCB *)mux->owner);
|
|
}
|
|
}
|
|
|
|
OsTaskStatusUnusedSet(taskCB);
|
|
|
|
LOS_ListDelete(&taskCB->threadList);
|
|
processCB->threadNumber--;
|
|
LOS_ListTailInsert(&g_taskRecycleList, &taskCB->pendList);
|
|
return;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT UINT32 OsTaskDeleteUnsafe(LosTaskCB *taskCB, UINT32 status, UINT32 intSave)
|
|
{
|
|
LosProcessCB *processCB = OS_PCB_FROM_PID(taskCB->processID);
|
|
UINT32 mode = processCB->processMode;
|
|
UINT32 errRet = LOS_OK;
|
|
|
|
if (taskCB->taskStatus & OS_TASK_FLAG_SYSTEM_TASK) {
|
|
errRet = LOS_ERRNO_TSK_OPERATE_SYSTEM_TASK;
|
|
goto EXIT;
|
|
}
|
|
|
|
if ((taskCB->taskStatus & OS_TASK_STATUS_RUNNING) && !OsRunTaskToDeleteCheckOnRun(taskCB, &errRet)) {
|
|
goto EXIT;
|
|
}
|
|
|
|
if (!(taskCB->taskStatus & OS_TASK_STATUS_RUNNING)) {
|
|
OsTaskDeleteInactive(processCB, taskCB);
|
|
SCHEDULER_UNLOCK(intSave);
|
|
OsWriteResourceEvent(OS_RESOURCE_EVENT_FREE);
|
|
return errRet;
|
|
}
|
|
OsHookCall(LOS_HOOK_TYPE_TASK_DELETE, taskCB);
|
|
if (mode == OS_USER_MODE) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
OsTaskResourcesToFree(taskCB);
|
|
SCHEDULER_LOCK(intSave);
|
|
}
|
|
|
|
#ifdef LOSCFG_KERNEL_SMP
|
|
LOS_ASSERT(OsPercpuGet()->taskLockCnt == 1);
|
|
#else
|
|
LOS_ASSERT(OsPercpuGet()->taskLockCnt == 0);
|
|
#endif
|
|
OsRunTaskToDelete(taskCB);
|
|
|
|
EXIT:
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return errRet;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_INIT UINT32 LOS_TaskDelete(UINT32 taskID)
|
|
{
|
|
UINT32 intSave;
|
|
UINT32 ret;
|
|
LosTaskCB *taskCB = NULL;
|
|
LosProcessCB *processCB = NULL;
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return LOS_ERRNO_TSK_ID_INVALID;
|
|
}
|
|
|
|
if (OS_INT_ACTIVE) {
|
|
return LOS_ERRNO_TSK_YIELD_IN_INT;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_TID(taskID);
|
|
SCHEDULER_LOCK(intSave);
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
ret = LOS_ERRNO_TSK_NOT_CREATED;
|
|
OS_GOTO_ERREND();
|
|
}
|
|
|
|
if (taskCB->taskStatus & (OS_TASK_FLAG_SYSTEM_TASK | OS_TASK_FLAG_NO_DELETE)) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
OsBackTrace();
|
|
return LOS_ERRNO_TSK_OPERATE_SYSTEM_TASK;
|
|
}
|
|
|
|
processCB = OS_PCB_FROM_PID(taskCB->processID);
|
|
if (processCB->threadNumber == 1) { /* 1: The last task of the process exits */
|
|
if (processCB == OsCurrProcessGet()) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
OsProcessExit(taskCB, OS_PRO_EXIT_OK);
|
|
return LOS_OK;
|
|
}
|
|
|
|
ret = LOS_ERRNO_TSK_ID_INVALID;
|
|
OS_GOTO_ERREND();
|
|
}
|
|
|
|
return OsTaskDeleteUnsafe(taskCB, OS_PRO_EXIT_OK, intSave);
|
|
|
|
LOS_ERREND:
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return ret;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT UINT32 LOS_TaskDelay(UINT32 tick)
|
|
{
|
|
UINT32 intSave;
|
|
LosTaskCB *runTask = NULL;
|
|
|
|
if (OS_INT_ACTIVE) {
|
|
PRINT_ERR("In interrupt not allow delay task!\n");
|
|
return LOS_ERRNO_TSK_DELAY_IN_INT;
|
|
}
|
|
|
|
runTask = OsCurrTaskGet();
|
|
if (runTask->taskStatus & OS_TASK_FLAG_SYSTEM_TASK) {
|
|
OsBackTrace();
|
|
return LOS_ERRNO_TSK_OPERATE_SYSTEM_TASK;
|
|
}
|
|
|
|
if (!OsPreemptable()) {
|
|
return LOS_ERRNO_TSK_DELAY_IN_LOCK;
|
|
}
|
|
OsHookCall(LOS_HOOK_TYPE_TASK_DELAY, tick);
|
|
if (tick == 0) {
|
|
return LOS_TaskYield();
|
|
}
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
OsSchedDelay(runTask, tick);
|
|
OsHookCall(LOS_HOOK_TYPE_MOVEDTASKTODELAYEDLIST, runTask);
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_MINOR UINT16 LOS_TaskPriGet(UINT32 taskID)
|
|
{
|
|
UINT32 intSave;
|
|
LosTaskCB *taskCB = NULL;
|
|
UINT16 priority;
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return (UINT16)OS_INVALID;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_TID(taskID);
|
|
SCHEDULER_LOCK(intSave);
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return (UINT16)OS_INVALID;
|
|
}
|
|
|
|
priority = taskCB->priority;
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return priority;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_TaskPriSet(UINT32 taskID, UINT16 taskPrio)
|
|
{
|
|
UINT32 intSave;
|
|
LosTaskCB *taskCB = NULL;
|
|
|
|
if (taskPrio > OS_TASK_PRIORITY_LOWEST) {
|
|
return LOS_ERRNO_TSK_PRIOR_ERROR;
|
|
}
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return LOS_ERRNO_TSK_ID_INVALID;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_TID(taskID);
|
|
if (taskCB->taskStatus & OS_TASK_FLAG_SYSTEM_TASK) {
|
|
return LOS_ERRNO_TSK_OPERATE_SYSTEM_TASK;
|
|
}
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return LOS_ERRNO_TSK_NOT_CREATED;
|
|
}
|
|
|
|
BOOL isReady = OsSchedModifyTaskSchedParam(taskCB, taskCB->policy, taskPrio);
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
LOS_MpSchedule(OS_MP_CPU_ALL);
|
|
if (isReady && OS_SCHEDULER_ACTIVE) {
|
|
LOS_Schedule();
|
|
}
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_CurTaskPriSet(UINT16 taskPrio)
|
|
{
|
|
return LOS_TaskPriSet(OsCurrTaskGet()->taskID, taskPrio);
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_TaskYield(VOID)
|
|
{
|
|
UINT32 intSave;
|
|
|
|
if (OS_INT_ACTIVE) {
|
|
return LOS_ERRNO_TSK_YIELD_IN_INT;
|
|
}
|
|
|
|
if (!OsPreemptable()) {
|
|
return LOS_ERRNO_TSK_YIELD_IN_LOCK;
|
|
}
|
|
|
|
LosTaskCB *runTask = OsCurrTaskGet();
|
|
if (OS_TID_CHECK_INVALID(runTask->taskID)) {
|
|
return LOS_ERRNO_TSK_ID_INVALID;
|
|
}
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
/* reset timeslice of yielded task */
|
|
OsSchedYield();
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_MINOR VOID LOS_TaskLock(VOID)
|
|
{
|
|
UINT32 intSave;
|
|
|
|
intSave = LOS_IntLock();
|
|
OsCpuSchedLock(OsPercpuGet());
|
|
LOS_IntRestore(intSave);
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_MINOR VOID LOS_TaskUnlock(VOID)
|
|
{
|
|
OsCpuSchedUnlock(OsPercpuGet(), LOS_IntLock());
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_TaskInfoGet(UINT32 taskID, TSK_INFO_S *taskInfo)
|
|
{
|
|
UINT32 intSave;
|
|
LosTaskCB *taskCB = NULL;
|
|
|
|
if (taskInfo == NULL) {
|
|
return LOS_ERRNO_TSK_PTR_NULL;
|
|
}
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return LOS_ERRNO_TSK_ID_INVALID;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_TID(taskID);
|
|
SCHEDULER_LOCK(intSave);
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return LOS_ERRNO_TSK_NOT_CREATED;
|
|
}
|
|
|
|
if (!(taskCB->taskStatus & OS_TASK_STATUS_RUNNING) || OS_INT_ACTIVE) {
|
|
taskInfo->uwSP = (UINTPTR)taskCB->stackPointer;
|
|
} else {
|
|
taskInfo->uwSP = ArchSPGet();
|
|
}
|
|
|
|
taskInfo->usTaskStatus = taskCB->taskStatus;
|
|
taskInfo->usTaskPrio = taskCB->priority;
|
|
taskInfo->uwStackSize = taskCB->stackSize;
|
|
taskInfo->uwTopOfStack = taskCB->topOfStack;
|
|
taskInfo->uwEventMask = taskCB->eventMask;
|
|
taskInfo->taskEvent = taskCB->taskEvent;
|
|
taskInfo->pTaskMux = taskCB->taskMux;
|
|
taskInfo->uwTaskID = taskID;
|
|
|
|
if (strncpy_s(taskInfo->acName, LOS_TASK_NAMELEN, taskCB->taskName, LOS_TASK_NAMELEN - 1) != EOK) {
|
|
PRINT_ERR("Task name copy failed!\n");
|
|
}
|
|
taskInfo->acName[LOS_TASK_NAMELEN - 1] = '\0';
|
|
|
|
taskInfo->uwBottomOfStack = TRUNCATE(((UINTPTR)taskCB->topOfStack + taskCB->stackSize),
|
|
OS_TASK_STACK_ADDR_ALIGN);
|
|
taskInfo->uwCurrUsed = (UINT32)(taskInfo->uwBottomOfStack - taskInfo->uwSP);
|
|
|
|
taskInfo->bOvf = OsStackWaterLineGet((const UINTPTR *)taskInfo->uwBottomOfStack,
|
|
(const UINTPTR *)taskInfo->uwTopOfStack, &taskInfo->uwPeakUsed);
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT BOOL OsTaskCpuAffiSetUnsafe(UINT32 taskID, UINT16 newCpuAffiMask, UINT16 *oldCpuAffiMask)
|
|
{
|
|
#ifdef LOSCFG_KERNEL_SMP
|
|
LosTaskCB *taskCB = OS_TCB_FROM_TID(taskID);
|
|
|
|
taskCB->cpuAffiMask = newCpuAffiMask;
|
|
*oldCpuAffiMask = CPUID_TO_AFFI_MASK(taskCB->currCpu);
|
|
if (!((*oldCpuAffiMask) & newCpuAffiMask)) {
|
|
taskCB->signal = SIGNAL_AFFI;
|
|
return TRUE;
|
|
}
|
|
#else
|
|
(VOID)taskID;
|
|
(VOID)newCpuAffiMask;
|
|
(VOID)oldCpuAffiMask;
|
|
#endif /* LOSCFG_KERNEL_SMP */
|
|
return FALSE;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_MINOR UINT32 LOS_TaskCpuAffiSet(UINT32 taskID, UINT16 cpuAffiMask)
|
|
{
|
|
LosTaskCB *taskCB = NULL;
|
|
BOOL needSched = FALSE;
|
|
UINT32 intSave;
|
|
UINT16 currCpuMask;
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return LOS_ERRNO_TSK_ID_INVALID;
|
|
}
|
|
|
|
if (!(cpuAffiMask & LOSCFG_KERNEL_CPU_MASK)) {
|
|
return LOS_ERRNO_TSK_CPU_AFFINITY_MASK_ERR;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_TID(taskID);
|
|
SCHEDULER_LOCK(intSave);
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return LOS_ERRNO_TSK_NOT_CREATED;
|
|
}
|
|
needSched = OsTaskCpuAffiSetUnsafe(taskID, cpuAffiMask, &currCpuMask);
|
|
|
|
SCHEDULER_UNLOCK(intSave);
|
|
if (needSched && OS_SCHEDULER_ACTIVE) {
|
|
LOS_MpSchedule(currCpuMask);
|
|
LOS_Schedule();
|
|
}
|
|
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_MINOR UINT16 LOS_TaskCpuAffiGet(UINT32 taskID)
|
|
{
|
|
#ifdef LOSCFG_KERNEL_SMP
|
|
#define INVALID_CPU_AFFI_MASK 0
|
|
LosTaskCB *taskCB = NULL;
|
|
UINT16 cpuAffiMask;
|
|
UINT32 intSave;
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return INVALID_CPU_AFFI_MASK;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_TID(taskID);
|
|
SCHEDULER_LOCK(intSave);
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return INVALID_CPU_AFFI_MASK;
|
|
}
|
|
|
|
cpuAffiMask = taskCB->cpuAffiMask;
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
return cpuAffiMask;
|
|
#else
|
|
(VOID)taskID;
|
|
return 1;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Description : Process pending signals tagged by others cores
|
|
*/
|
|
LITE_OS_SEC_TEXT_MINOR VOID OsTaskProcSignal(VOID)
|
|
{
|
|
UINT32 intSave, ret;
|
|
|
|
/*
|
|
* private and uninterruptable, no protection needed.
|
|
* while this task is always running when others cores see it,
|
|
* so it keeps receiving signals while follow code executing.
|
|
*/
|
|
LosTaskCB *runTask = OsCurrTaskGet();
|
|
if (runTask->signal == SIGNAL_NONE) {
|
|
return;
|
|
}
|
|
|
|
if (runTask->signal & SIGNAL_KILL) {
|
|
/*
|
|
* clear the signal, and do the task deletion. if the signaled task has been
|
|
* scheduled out, then this deletion will wait until next run.
|
|
*/
|
|
SCHEDULER_LOCK(intSave);
|
|
runTask->signal = SIGNAL_NONE;
|
|
ret = OsTaskDeleteUnsafe(runTask, OS_PRO_EXIT_OK, intSave);
|
|
if (ret) {
|
|
PRINT_ERR("Task proc signal delete task(%u) failed err:0x%x\n", runTask->taskID, ret);
|
|
}
|
|
} else if (runTask->signal & SIGNAL_SUSPEND) {
|
|
runTask->signal &= ~SIGNAL_SUSPEND;
|
|
|
|
/* suspend killed task may fail, ignore the result */
|
|
(VOID)LOS_TaskSuspend(runTask->taskID);
|
|
#ifdef LOSCFG_KERNEL_SMP
|
|
} else if (runTask->signal & SIGNAL_AFFI) {
|
|
runTask->signal &= ~SIGNAL_AFFI;
|
|
|
|
/* pri-queue has updated, notify the target cpu */
|
|
LOS_MpSchedule((UINT32)runTask->cpuAffiMask);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT INT32 OsSetTaskName(LosTaskCB *taskCB, const CHAR *name, BOOL setPName)
|
|
{
|
|
UINT32 intSave;
|
|
errno_t err;
|
|
LosProcessCB *processCB = NULL;
|
|
const CHAR *namePtr = NULL;
|
|
CHAR nameBuff[OS_TCB_NAME_LEN] = { 0 };
|
|
|
|
if ((taskCB == NULL) || (name == NULL)) {
|
|
return EINVAL;
|
|
}
|
|
|
|
if (LOS_IsUserAddress((VADDR_T)(UINTPTR)name)) {
|
|
err = LOS_StrncpyFromUser(nameBuff, (const CHAR *)name, OS_TCB_NAME_LEN);
|
|
if (err < 0) {
|
|
return -err;
|
|
}
|
|
namePtr = nameBuff;
|
|
} else {
|
|
namePtr = name;
|
|
}
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
|
|
err = strncpy_s(taskCB->taskName, OS_TCB_NAME_LEN, (VOID *)namePtr, OS_TCB_NAME_LEN - 1);
|
|
if (err != EOK) {
|
|
err = EINVAL;
|
|
goto EXIT;
|
|
}
|
|
|
|
err = LOS_OK;
|
|
processCB = OS_PCB_FROM_PID(taskCB->processID);
|
|
/* if thread is main thread, then set processName as taskName */
|
|
if ((taskCB->taskID == processCB->threadGroupID) && (setPName == TRUE)) {
|
|
err = (INT32)OsSetProcessName(processCB, (const CHAR *)taskCB->taskName);
|
|
if (err != LOS_OK) {
|
|
err = EINVAL;
|
|
}
|
|
}
|
|
|
|
EXIT:
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return err;
|
|
}
|
|
|
|
STATIC VOID OsExitGroupActiveTaskKilled(LosProcessCB *processCB, LosTaskCB *taskCB)
|
|
{
|
|
INT32 ret;
|
|
|
|
taskCB->taskStatus |= OS_TASK_FLAG_EXIT_KILL;
|
|
#ifdef LOSCFG_KERNEL_SMP
|
|
/* The other core that the thread is running on and is currently running in a non-system call */
|
|
if (!taskCB->sig.sigIntLock && (taskCB->taskStatus & OS_TASK_STATUS_RUNNING)) {
|
|
taskCB->signal = SIGNAL_KILL;
|
|
LOS_MpSchedule(taskCB->currCpu);
|
|
} else
|
|
#endif
|
|
#ifdef LOSCFG_KERNEL_VM
|
|
{
|
|
ret = OsTaskKillUnsafe(taskCB->taskID, SIGKILL);
|
|
if (ret != LOS_OK) {
|
|
PRINT_ERR("pid %u exit, Exit task group %u kill %u failed! ERROR: %d\n",
|
|
taskCB->processID, OsCurrTaskGet()->taskID, taskCB->taskID, ret);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (!(taskCB->taskStatus & OS_TASK_FLAG_PTHREAD_JOIN)) {
|
|
taskCB->taskStatus |= OS_TASK_FLAG_PTHREAD_JOIN;
|
|
LOS_ListInit(&taskCB->joinList);
|
|
}
|
|
|
|
ret = OsTaskJoinPendUnsafe(taskCB);
|
|
if (ret != LOS_OK) {
|
|
PRINT_ERR("pid %u exit, Exit task group %u to wait others task %u(0x%x) exit failed! ERROR: %d\n",
|
|
taskCB->processID, OsCurrTaskGet()->taskID, taskCB->taskID, taskCB->taskStatus, ret);
|
|
}
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT VOID OsTaskExitGroup(UINT32 status)
|
|
{
|
|
UINT32 intSave;
|
|
|
|
LosProcessCB *processCB = OsCurrProcessGet();
|
|
LosTaskCB *currTask = OsCurrTaskGet();
|
|
SCHEDULER_LOCK(intSave);
|
|
if ((processCB->processStatus & OS_PROCESS_FLAG_EXIT) || !OsProcessIsUserMode(processCB)) {
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return;
|
|
}
|
|
|
|
processCB->processStatus |= OS_PROCESS_FLAG_EXIT;
|
|
processCB->threadGroupID = currTask->taskID;
|
|
|
|
LOS_DL_LIST *list = &processCB->threadSiblingList;
|
|
LOS_DL_LIST *head = list;
|
|
do {
|
|
LosTaskCB *taskCB = LOS_DL_LIST_ENTRY(list->pstNext, LosTaskCB, threadList);
|
|
if ((taskCB->taskStatus & (OS_TASK_STATUS_INIT | OS_TASK_STATUS_EXIT) ||
|
|
((taskCB->taskStatus & OS_TASK_STATUS_READY) && !taskCB->sig.sigIntLock)) &&
|
|
!(taskCB->taskStatus & OS_TASK_STATUS_RUNNING)) {
|
|
OsTaskDeleteInactive(processCB, taskCB);
|
|
} else {
|
|
if (taskCB != currTask) {
|
|
OsExitGroupActiveTaskKilled(processCB, taskCB);
|
|
} else {
|
|
/* Skip the current task */
|
|
list = list->pstNext;
|
|
}
|
|
}
|
|
} while (head != list->pstNext);
|
|
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
LOS_ASSERT(processCB->threadNumber == 1);
|
|
return;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT VOID OsExecDestroyTaskGroup(VOID)
|
|
{
|
|
OsTaskExitGroup(OS_PRO_EXIT_OK);
|
|
OsTaskCBRecycleToFree();
|
|
}
|
|
|
|
UINT32 OsUserTaskOperatePermissionsCheck(LosTaskCB *taskCB)
|
|
{
|
|
return OsUserProcessOperatePermissionsCheck(taskCB, OsCurrProcessGet()->processID);
|
|
}
|
|
|
|
UINT32 OsUserProcessOperatePermissionsCheck(LosTaskCB *taskCB, UINT32 processID)
|
|
{
|
|
if (taskCB == NULL) {
|
|
return LOS_EINVAL;
|
|
}
|
|
|
|
if (processID == OS_INVALID_VALUE) {
|
|
return OS_INVALID_VALUE;
|
|
}
|
|
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
return LOS_EINVAL;
|
|
}
|
|
|
|
if (processID != taskCB->processID) {
|
|
return LOS_EPERM;
|
|
}
|
|
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_INIT STATIC UINT32 OsCreateUserTaskParamCheck(UINT32 processID, TSK_INIT_PARAM_S *param)
|
|
{
|
|
UserTaskParam *userParam = NULL;
|
|
|
|
if (param == NULL) {
|
|
return OS_INVALID_VALUE;
|
|
}
|
|
|
|
userParam = ¶m->userParam;
|
|
if ((processID == OS_INVALID_VALUE) && !LOS_IsUserAddress(userParam->userArea)) {
|
|
return OS_INVALID_VALUE;
|
|
}
|
|
|
|
if (!LOS_IsUserAddress((UINTPTR)param->pfnTaskEntry)) {
|
|
return OS_INVALID_VALUE;
|
|
}
|
|
|
|
if (userParam->userMapBase && !LOS_IsUserAddressRange(userParam->userMapBase, userParam->userMapSize)) {
|
|
return OS_INVALID_VALUE;
|
|
}
|
|
|
|
if (!LOS_IsUserAddress(userParam->userSP)) {
|
|
return OS_INVALID_VALUE;
|
|
}
|
|
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT_INIT UINT32 OsCreateUserTask(UINT32 processID, TSK_INIT_PARAM_S *initParam)
|
|
{
|
|
LosProcessCB *processCB = NULL;
|
|
UINT32 taskID;
|
|
UINT32 ret;
|
|
UINT32 intSave;
|
|
|
|
ret = OsCreateUserTaskParamCheck(processID, initParam);
|
|
if (ret != LOS_OK) {
|
|
return ret;
|
|
}
|
|
|
|
initParam->uwStackSize = OS_USER_TASK_SYSCALL_STACK_SIZE;
|
|
initParam->usTaskPrio = OS_TASK_PRIORITY_LOWEST;
|
|
initParam->policy = LOS_SCHED_RR;
|
|
if (processID == OS_INVALID_VALUE) {
|
|
SCHEDULER_LOCK(intSave);
|
|
processCB = OsCurrProcessGet();
|
|
initParam->processID = processCB->processID;
|
|
initParam->consoleID = processCB->consoleID;
|
|
SCHEDULER_UNLOCK(intSave);
|
|
} else {
|
|
processCB = OS_PCB_FROM_PID(processID);
|
|
if (!(processCB->processStatus & (OS_PROCESS_STATUS_INIT | OS_PROCESS_STATUS_RUNNING))) {
|
|
return OS_INVALID_VALUE;
|
|
}
|
|
initParam->processID = processID;
|
|
initParam->consoleID = 0;
|
|
}
|
|
|
|
ret = LOS_TaskCreateOnly(&taskID, initParam);
|
|
if (ret != LOS_OK) {
|
|
return OS_INVALID_VALUE;
|
|
}
|
|
|
|
return taskID;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT INT32 LOS_GetTaskScheduler(INT32 taskID)
|
|
{
|
|
UINT32 intSave;
|
|
LosTaskCB *taskCB = NULL;
|
|
INT32 policy;
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return -LOS_EINVAL;
|
|
}
|
|
|
|
taskCB = OS_TCB_FROM_TID(taskID);
|
|
SCHEDULER_LOCK(intSave);
|
|
if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
|
|
policy = -LOS_EINVAL;
|
|
OS_GOTO_ERREND();
|
|
}
|
|
|
|
policy = taskCB->policy;
|
|
|
|
LOS_ERREND:
|
|
SCHEDULER_UNLOCK(intSave);
|
|
return policy;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT INT32 LOS_SetTaskScheduler(INT32 taskID, UINT16 policy, UINT16 priority)
|
|
{
|
|
UINT32 intSave;
|
|
BOOL needSched = FALSE;
|
|
|
|
if (OS_TID_CHECK_INVALID(taskID)) {
|
|
return LOS_ESRCH;
|
|
}
|
|
|
|
if (priority > OS_TASK_PRIORITY_LOWEST) {
|
|
return LOS_EINVAL;
|
|
}
|
|
|
|
if ((policy != LOS_SCHED_FIFO) && (policy != LOS_SCHED_RR)) {
|
|
return LOS_EINVAL;
|
|
}
|
|
|
|
SCHEDULER_LOCK(intSave);
|
|
needSched = OsSchedModifyTaskSchedParam(OS_TCB_FROM_TID(taskID), policy, priority);
|
|
SCHEDULER_UNLOCK(intSave);
|
|
|
|
LOS_MpSchedule(OS_MP_CPU_ALL);
|
|
if (needSched && OS_SCHEDULER_ACTIVE) {
|
|
LOS_Schedule();
|
|
}
|
|
|
|
return LOS_OK;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT UINT32 LOS_GetSystemTaskMaximum(VOID)
|
|
{
|
|
return g_taskMaxNum;
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT VOID OsWriteResourceEvent(UINT32 events)
|
|
{
|
|
(VOID)LOS_EventWrite(&g_resourceEvent, events);
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT VOID OsWriteResourceEventUnsafe(UINT32 events)
|
|
{
|
|
(VOID)OsEventWriteUnsafe(&g_resourceEvent, events, FALSE, NULL);
|
|
}
|
|
|
|
STATIC VOID OsResourceRecoveryTask(VOID)
|
|
{
|
|
UINT32 ret;
|
|
|
|
while (1) {
|
|
ret = LOS_EventRead(&g_resourceEvent, OS_RESOURCE_EVENT_MASK,
|
|
LOS_WAITMODE_OR | LOS_WAITMODE_CLR, LOS_WAIT_FOREVER);
|
|
if (ret & (OS_RESOURCE_EVENT_FREE | OS_RESOURCE_EVENT_OOM)) {
|
|
OsTaskCBRecycleToFree();
|
|
|
|
OsProcessCBRecycleToFree();
|
|
}
|
|
|
|
#ifdef LOSCFG_ENABLE_OOM_LOOP_TASK
|
|
if (ret & OS_RESOURCE_EVENT_OOM) {
|
|
(VOID)OomCheckProcess();
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
LITE_OS_SEC_TEXT UINT32 OsResourceFreeTaskCreate(VOID)
|
|
{
|
|
UINT32 ret;
|
|
UINT32 taskID;
|
|
TSK_INIT_PARAM_S taskInitParam;
|
|
|
|
ret = LOS_EventInit((PEVENT_CB_S)&g_resourceEvent);
|
|
if (ret != LOS_OK) {
|
|
return LOS_NOK;
|
|
}
|
|
|
|
(VOID)memset_s((VOID *)(&taskInitParam), sizeof(TSK_INIT_PARAM_S), 0, sizeof(TSK_INIT_PARAM_S));
|
|
taskInitParam.pfnTaskEntry = (TSK_ENTRY_FUNC)OsResourceRecoveryTask;
|
|
taskInitParam.uwStackSize = OS_TASK_RESOURCE_STATIC_SIZE;
|
|
taskInitParam.pcName = "ResourcesTask";
|
|
taskInitParam.usTaskPrio = OS_TASK_RESOURCE_FREE_PRIORITY;
|
|
ret = LOS_TaskCreate(&taskID, &taskInitParam);
|
|
if (ret == LOS_OK) {
|
|
OS_TCB_FROM_TID(taskID)->taskStatus |= OS_TASK_FLAG_NO_DELETE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
LOS_MODULE_INIT(OsResourceFreeTaskCreate, LOS_INIT_LEVEL_KMOD_TASK);
|
|
|