【第6章】VxWorks嵌入式操作系统课程内容5.1任务的管理任务的context5.1任务的管理任务管理的系统调用TaskCreationRoutinesTaskSpawnTaskSpawnTaskSchedulingRoutinesTaskSchedulingRoutines任务锁TaskSchedulingRoutinesTaskSchedulingRoutinesTaskNameandIDRoutinesTaskNameandIDRoutinesTaskInformationRoutinesTaskInformationRoutinesTaskInformationRoutinesTaskDeletingRoutinestaskSafe()与taskUnsafe()TaskDeletingRoutinesTaskDeletingRoutinesTaskControlRoutines5.2任务间通信5.2.1信号量SemaphoreControlRoutinesBinary信号量Binary信号量semBCreate()semTake()semGive()Binary信号量-MutualExclusionBinary信号量-MutualExclusionBinary信号量-SynchronizationBinary信号量-SynchronizationBinary信号量-SynchronizationBinary信号量-SynchronizationBinary信号量演示Binary信号量演示Counting信号量Counting信号量演示5.2.2消息队列消息队列MessageQueueControlmsgQCreate()函数msgQSend()函数msgQSend()函数msgQReceive()函数消息队列举例消息队列举例消息队列举例消息队列举例消息队列消息队列演示消息队列演示消息队列演示5.2.3管道5.2.3管道pipeDrvpipeCreateopenopenclosereadwrite管道演示5.2.4事件EventeventSendeventReceiveeventReceiveEvent演示5.3其他系统服务系统时间时间换算函数定时执行任务定时执行任务定时执行任务定时执行任务定时执行任务定时执行任务WatchdogTimerWatchdogTimerwdCreatewdStartwdCancelwdDeletewdShowlogMsglogMsgWatchdogTimer演示InterruptServiceRoutineAppendix:TornadoWinShellVxWorksWindShVxWorksWindShVxWorksWindShVxWorksWindShVxWorksWindShVxWorksWindShRunashellShell功能CLanguageInterpreterCLanguageInterpreterTaskInformationShellcommands:iShellCommands:tiTaskStatesTaskStatesTaskStatesTaskStatesTaskStatesTaskStatesTaskStatesShellCommands:wShellCommands:twShellCommands:checkStackTaskManipulationShellCommands:tdShellCommands:ts&tr任务延时与挂起1任务延时与挂起2SystemInformationShellCommands:lkupShellCommands:dShellCommands:dShellCommands:dShellCommands:dShellCommands:dShellCommands:dShellCommands:dShellCommands:lsShellCommands:pwd&cdShellCommands:hSystemModificationShellCommands:rebootShellCommands:quit/exitBinarySemaphore1BinarySemaphore2BinarySemaphore3BinarySemaphore4BinarySemaphore5CountingSemaphore1CountingSemaphore2CountingSemaphore3CountingSemaphore4CountingSemaphore5CountingSemaphore6CountingSemaphore7MessageQueue1MessageQueue2MessageQueue3MessageQueue4Me