自定义任务状态来操作FreeRTOS任务的挂起，恢复，删除

osThreadState osState2;//自定义一个线程的状态osThreadState 系统枚举定义如下：
typedef enum {
osThreadRunning = 0x0, /* A thread is querying the state of itself, so must be running. */
osThreadReady = 0x1 , /* The thread being queried is in a read or pending ready list. */
osThreadBlocked = 0x2, /* The thread being queried is in the Blocked state. */
osThreadSuspended = 0x3, /* The thread being queried is in the Suspended state, or is in the Blocked state with an infinite time out. */
osThreadDeleted = 0x4, /* The thread being queried has been deleted, but its TCB has not yet been freed. */
osThreadError = 0x7FFFFFFF
} osThreadState;如果用系统查询任务状态函数查找线程状态
osState2 = osThreadGetState(myTask02Handle);
查询到的状态osState2 = osThreadBlocked等于阻塞的情况很容易出现
在这种情况下来操作线程的创建，删除，挂起，恢复容易导致程序崩溃osThreadState osState2程序里我们不使用osThreadGetState来查询线程的状态
而是在自己的程序里来赋值，比如创建完任务后osState2 = osThreadRunning;
删除完任务后osState2 = osThreadDeleted;
挂起任务后osState2 = osThreadSuspended;
恢复完任务后osState2 = osThreadRunning;
这样任务的状态始终只有三个状态osThreadDeleted，osThreadSuspended，osThreadRunning。if(strcmp(ppara1,"任务挂起2") == )//收到挂起的命令
{
if(osState2 == osThreadRunning)//如果任务是运行状态，才会执行挂起动作
{
if(osOK == osThreadSuspend(myTask02Handle))//如果任务挂起成功
{
osState2 = osThreadSuspended;//则改变任务2的状态为挂起
printf("任务2已经挂起\r\n");
}
}
}
else if(strcmp(ppara1,"任务恢复2") == )//收到恢复的命令
{
if(osState2 == osThreadSuspended)//如果任务是挂起状态，才执行任务恢复动作
{
if(osOK ==osThreadResume(myTask02Handle))//如果任务挂起成功
{
osState2 = osThreadRunning;//则改变任务2的状态为运行
printf("任务2已经恢复\r\n");
}
}
}
else if(strcmp(ppara1,"任务删除2") == )//收到删除的命令
{
if(osState2 != osThreadDeleted)//如果任务不是删除状态，才执行任务删除动作
{
if(osOK == osThreadTerminate(myTask02Handle))//如果任务删除成功
{
osState2 = osThreadDeleted;//则改变任务2的状态为删除
printf("任务2已经删除\r\n");
}
}
}
else if(strcmp(ppara1,"任务创建2") == )//收到创建的命令
{
if(osState2 == osThreadDeleted)//如果任务是删除状态，才执行任务创建动作
{
osThreadDef(myTask02, StartTask02, osPriorityIdle, , );
myTask02Handle = osThreadCreate(osThread(myTask02), NULL);//创建任务
osState2 = osThreadRunning;//则改变任务2的状态为运行
printf("任务2已经创建\r\n");
}
}