UINT32 Example_Semphore(VOID)
{
UINT32 uwRet = LOS_OK;
TSK_INIT_PARAM_S stTask1;
TSK_INIT_PARAM_S stTask2;
/* create sem */
LOS_SemCreate(0, &g_usSemID);
/* lock task schedue */
LOS_TaskLock();
/* create task1 */
memset(&stTask1, 0, sizeof(TSK_INIT_PARAM_S));
stTask1.pfnTaskEntry = (TSK_ENTRY_FUNC)Example_SemTask1;
stTask1.pcName = "MutexTsk1";
stTask1.uwStackSize = LOSCFG_BASE_CORE_TSK_IDLE_STACK_SIZE;
stTask1.usTaskPrio = TASK_PRIO_TEST;
uwRet = LOS_TaskCreate(&g_TestTaskID01, &stTask1);
if (uwRet != LOS_OK)
{
dprintf("task1 create failed .\n");
return LOS_NOK;
}
/* create task2 */
memset(&stTask2, 0, sizeof(TSK_INIT_PARAM_S));
stTask2.pfnTaskEntry = (TSK_ENTRY_FUNC)Example_SemTask2;
stTask2.pcName = "MutexTsk2";
stTask2.uwStackSize = LOSCFG_BASE_CORE_TSK_IDLE_STACK_SIZE;
stTask2.usTaskPrio = (TASK_PRIO_TEST - 1);
uwRet = LOS_TaskCreate(&g_TestTaskID02, &stTask2);
if (uwRet != LOS_OK)
{
dprintf("task2 create failed .\n");
/* delete task 1 */
if (LOS_OK != LOS_TaskDelete(g_TestTaskID01))
{
dprintf("task1 delete failed .\n");
}
return LOS_NOK;
}
/* unlock task schedue */
LOS_TaskUnlock();
uwRet = LOS_SemPost(g_usSemID);
/* task delay 40 ticks */
LOS_TaskDelay(40);
/* delete sem */
LOS_SemDelete(g_usSemID);
return uwRet;
}
UINT32 Example_MsgQueue(void)
{
UINT32 uwRet = 0;
UINT32 uwTask1, uwTask2;
TSK_INIT_PARAM_S stInitParam1;
/*创建任务1*/
stInitParam1.pfnTaskEntry = send_Entry;
stInitParam1.usTaskPrio = 9;
stInitParam1.uwStackSize = 0x200;
stInitParam1.pcName = "sendQueue";
stInitParam1.uwResved = LOS_TASK_STATUS_DETACHED;
LOS_TaskLock();//锁住任务，防止新创建的任务比本任务高而发生调度
uwRet = LOS_TaskCreate(&uwTask1, &stInitParam1);
if(uwRet != LOS_OK)
{
dprintf("create task1 failed!,error:%x\n",uwRet);
return uwRet;
}
/*创建任务2*/
stInitParam1.pfnTaskEntry = recv_Entry;
uwRet = LOS_TaskCreate(&uwTask2, &stInitParam1);
if(uwRet != LOS_OK)
{
dprintf("create task2 failed!,error:%x\n",uwRet);
return uwRet;
}
/*创建队列*/
uwRet = LOS_QueueCreate("queue", 5, &g_uwQueue, 0, 24);
if(uwRet != LOS_OK)
{
dprintf("create queue failure!,error:%x\n",uwRet);
}
dprintf("create the queue success!\n");
LOS_TaskUnlock();//解锁任务，只有队列创建后才开始任务调度
return LOS_OK;
}
osThreadId_t osThreadNew (osThreadFunc_t func, void *argument, const osThreadAttr_t *attr)
{
UNUSED(argument);
UINT32 uwTid;
UINT32 uwRet;
LOS_TASK_CB *pstTaskCB = NULL;
TSK_INIT_PARAM_S stTskInitParam;
if (OS_INT_ACTIVE)
{
return NULL;
}
if ((attr == NULL) ||
(func == NULL) ||
(attr->priority < osPriorityLow1) ||
(attr->priority > osPriorityAboveNormal6))
{
return (osThreadId_t)NULL;
}
memset(&stTskInitParam, 0, sizeof(TSK_INIT_PARAM_S));
stTskInitParam.pfnTaskEntry = (TSK_ENTRY_FUNC)func;
stTskInitParam.uwStackSize = attr->stack_size*4;
stTskInitParam.pcName = (CHAR *)attr->name;
stTskInitParam.usTaskPrio = OS_TASK_PRIORITY_LOWEST - ((UINT16)(attr->priority) - LOS_PRIORITY_WIN); /*0~31*/
uwRet = LOS_TaskCreate(&uwTid, &stTskInitParam);
if (LOS_OK != uwRet)
{
return (osThreadId_t)NULL;
}
pstTaskCB = OS_TCB_FROM_TID(uwTid);
return (osThreadId_t)pstTaskCB;
}