Chris O'Byrne - YAVRTOS
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The possible states that a task can be in
Defines | |
| #define | TASK_STATE_STARTING 1 |
| Starting. | |
| #define | TASK_STATE_RUNNING 2 |
| Running. | |
| #define | TASK_STATE_WAITING_TO_STOP 3 |
| Waiting for the task to release all of its mutexes before stopping. | |
| #define | TASK_STATE_STOPPING 4 |
| Stopping. | |
| #define | TASK_STATE_CLEANING_UP 5 |
| Cleaning up. | |
| #define | TASK_STATE_STOPPED 6 |
| Stopped. | |
Detailed Description
For internal use only.
These are the states that a task can be in (i.e. the possible values of task.status).
Define Documentation
| #define TASK_STATE_CLEANING_UP 5 |
Cleaning up.
The task is stopping, and the stack contains the entire CPU context
This state is set by the scheduler the first time the task is scheduled after having had its state set to TASK_STATE_STOPPING
| #define TASK_STATE_RUNNING 2 |
Running.
The task is running, and the stack contains the entire CPU context.
This state is set by the scheduler the first time the task is scheduled
| #define TASK_STATE_STARTING 1 |
Starting.
The task is starting, and the stack only contains a return address for task_starter()
This state is set by create_task()
| #define TASK_STATE_STOPPED 6 |
Stopped.
The task is completely dead, and this entry in the task list is available for new tasks.
This state is set by reserve_task(), and when the task has completely stopped.
| #define TASK_STATE_STOPPING 4 |
Stopping.
The task is stopping, and the stack only contains a return address for task_stopper()
This state is set by stop_task() when there is no need, or desire, to wait for mutexes. Note that a task will commit suicide on lock_off() if it is in TASK_STATE_WAITING_TO_STOP and has just released its last mutex.
| #define TASK_STATE_WAITING_TO_STOP 3 |
Waiting for the task to release all of its mutexes before stopping.
The task is running, and the stack contains the entire CPU context
This state is set by stop_task() when the wait_for_mutexes parameter is set and the task owns mutexes