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TNeoKernel
v1.02
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TNeoKernel
v1.02
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Task.
Definition at line 173 of file tn_tasks.h.
Data Fields | |
| unsigned int * | task_stk |
| pointer to task's current stack pointer; Note that this field must be a first field in the struct, this fact is exploited by platform-specific routines. More... | |
| struct TN_ListItem | task_queue |
| queue is used to include task in ready/wait lists | |
| struct TN_Timer | timer |
| timer object to implement task waiting for timeout | |
| struct TN_ListItem * | pwait_queue |
| pointer to object's (semaphore, mutex, event, etc) wait list in which task is included for waiting | |
| struct TN_ListItem | create_queue |
| queue is used to include task in creation list (currently, this list is used for statistics only) | |
| struct TN_ListItem | mutex_queue |
| list of all mutexes that are locked by task | |
| struct TN_ListItem | deadlock_list |
| list of other tasks involved in deadlock. More... | |
| TN_UWord * | base_stack_top |
| base top of the stack for this task | |
| int | stack_size |
size of task's stack (in sizeof(TN_UWord), not bytes) | |
| TN_TaskBody * | task_func_addr |
pointer to task's body function given to tn_task_create() | |
| void * | task_func_param |
pointer to task's parameter given to tn_task_create() | |
| int | base_priority |
| base priority of the task (actual current priority may be higher than base priority because of mutex) | |
| int | priority |
| current task priority | |
| enum TN_ObjId | id_task |
| id for object validity verification | |
| enum TN_TaskState | task_state |
| task state | |
| enum TN_WaitReason | task_wait_reason |
reason for waiting (relevant if only task_state is WAIT or WAIT+SUSPEND) | |
| enum TN_RCode | task_wait_rc |
| waiting result code (reason why waiting finished) | |
| int | tslice_count |
| time slice counter | |
| union { | |
| struct TN_EGrpTaskWait eventgrp | |
| fields specific to tn_eventgrp.h | |
| struct TN_DQueueTaskWait dqueue | |
| fields specific to tn_dqueue.h | |
| struct TN_FMemTaskWait fmem | |
| fields specific to tn_fmem.h | |
| } | subsys_wait |
| subsystem-specific fields that are used while task waits for something. More... | |
| unsigned | priority_already_updated: 1 |
| Internal flag used to optimize mutex priority algorithms. More... | |
| unsigned | waited: 1 |
Flag indicates that task waited for something This flag is set automatially in _tn_task_set_waiting() Must be cleared manually before calling any service that could sleep, if the caller is interested in the relevant value of this flag. More... | |
| unsigned int* TN_Task::task_stk |
pointer to task's current stack pointer; Note that this field must be a first field in the struct, this fact is exploited by platform-specific routines.
Definition at line 177 of file tn_tasks.h.
| struct TN_ListItem TN_Task::deadlock_list |
list of other tasks involved in deadlock.
This list is non-empty only in emergency cases, and it is here to help you fix your bug that led to deadlock.
TN_MUTEX_DEADLOCK_DETECT Definition at line 207 of file tn_tasks.h.
| union { ... } TN_Task::subsys_wait |
subsystem-specific fields that are used while task waits for something.
Do note that these fields are grouped by union, so, they must not interfere with each other. It's quite ok here because task can't wait for different things.
| unsigned TN_Task::priority_already_updated |
Internal flag used to optimize mutex priority algorithms.
For the comments on it, see file tn_mutex.c, function _mutex_do_unlock().
Definition at line 278 of file tn_tasks.h.
| unsigned TN_Task::waited |
Flag indicates that task waited for something This flag is set automatially in _tn_task_set_waiting() Must be cleared manually before calling any service that could sleep, if the caller is interested in the relevant value of this flag.
Definition at line 284 of file tn_tasks.h.
1.8.8