Synopsis

BOOL AddTaskHook(
         struct Hook * tHook,
         ULONG thType );

Synopsis

LONG AllocTaskStorageSlot();

Function

This function will allocate a slot in the task storage.

Inputs

None.

Result

The allocated SlotID, or 0 if no slotid could be allocated.

Notes

After this function SetTaskStorageSlot(slotid) may be used to store
values with each slotid.

See also

FreeTaskStorageSlot() GetTaskStorageSlot() SetTaskStorageSlot()

Synopsis

void FreeTaskStorageSlot();

Function

This function will free a slot in task storage

Inputs

slotid - The slot id to free.

Result

None.

Notes

Currently no checks are performed to determine if one is the owner
of the slotid. This may be added in the future, so one should
deallocate a slotid from the same task that allocated the slotid.

See also

AllocTaskStorageSlot()

Synopsis

IPTR GetParentTaskStorageSlot();

Function

Get a value for a task storage slot of parent task.

Inputs

slotid - slot ID returned from AllocTaskStorageSlot().

Result

Value stored by SetTaskStorageSlot() on parent task, or
(IPTR)NULL if the slot was never used.

Notes

Since you are accessing value of another task, the value
might be invalid/freed by the time this function returns.
To be sure value is still valid, call this function under
Forbid().

See also

AllocTaskStorageSlot() FreeTaskStorageSlot() SetTaskStorageSlot() GetTaskStorageSlot()

Synopsis

IPTR GetTaskStorageSlot();

Function

Get a value for a task storage slot.

Inputs

slotid - slot ID returned from AllocTaskStorageSlot().

Result

Value stored by SetTaskStorageSlot(), or (IPTR)NULL if the slot was
never used.

See also

AllocTaskStorageSlot() FreeTaskStorageSlot() SetTaskStorageSlot()

Synopsis

BOOL InitTaskHooks(
         APTR thDispatcher,
         ULONG thType,
         ULONG thFlags );

Inputs

thDispatcher - default dispatcher used to call the hook.
thType - Task Hook Type for the list.
thFlags -
                THF_ROA - Runs a TaskHook immidiately when it is added.
                THF_IAR - Runs a TaskHook immidiately if the TaskHooks have been run.

Synopsis

struct TaskList * LockTaskList(
         ULONG flags );

Inputs

flags -
      LTF_WRITE     Lock The TaskList for writing
                    NB: In general software SHOULDNT
                        need to use this!

      LTF_RUNNING   Lock The TaskList to show running tasks.
      LTF_READY     Lock The TaskList to show ready tasks.
      LTF_WAITING   Lock The TaskList to show waiting/spinning tasks.
      LTF_ALL       Lock The TaskList to show all of the above tasks.

Result

Handle to the task list. This is not a direct pointer
to the first list element but to a pseudo element instead.

See also

UnLockTaskList() NextTaskEntry()

Synopsis

struct Task * NextTaskEntry(
         struct TaskList * tlist,
         ULONG flags );

Function

Looks for the next task list entry with the right type. The list
must be locked for this.

Inputs

tlist - the value given by LockTaskList()
flags - the same flags as given to LockTaskList() or a subset
        of them.

Result

Pointer to task entry found or NULL if the are no more entries.

See also

LockTaskList() UnLockTaskList()

Synopsis

void QueryTaskTagList(
         struct Task * task,
         struct TagItem * tagList );

void QueryTaskTags(
         struct Task * task,
         TAG tag, ... );

Function

Provides information about selected system Task

Inputs

Function takes an array of tags. Data is returned for each tag. See
specific tag description.

Tags

TaskTag_CPUNumber - (IPTR *) Returns the CPU Number the task is currently running on
TaskTag_CPUAffinity - (IPTR *) Returns the CPU Affinity mask
TaskTag_CPUTime - (struct timeval *) Returns the amount of cpu time a task has used .
TaskTag_StartTime - (struct timeval *) Returns the time the task was launched .

Result

None

Synopsis

void RestoreTaskStorage();

Function

This function restores the current state of the task storage slotalloccnt.

Inputs

handle - ID returned from SaveTaskStorage() referring to the state.

Result

None.

See also

SaveTaskStorage()

Synopsis

BOOL RunTaskHooks(
         APTR thDispatcher,
         ULONG thType );

Synopsis

APTR SaveTaskStorage();

Function

This function remembers the current state of the task storage slots.
An ID will be returned with which the current state can be restored
using RestoreTaskStorage(). NULL is returned when not enough memory
is available.

Inputs

None.

Result

id - ID for use with RestoreTaskStorage(), or NULL.

See also

RestoreTaskStorage()

Synopsis

BOOL SetTaskStorageSlot();

Function

Puts a new value in a task storage slot. If necessary, the number of
task storage slotalloccnt will be increased.

Inputs

slotid - slot ID returned from AllocTaskStorageSlot().
value - value to store in the slot.

Result

success - TRUE if the value was successfully stored.

See also

AllocTaskStorageSlot() FreeTaskStorageSlot() GetTaskStorageSlot()

Synopsis

void UnLockTaskList(
         struct TaskList * tlist,
         ULONG flags );

Function

Frees a lock on the task lists given by LockTaskList().

Inputs

flags - the same value as given to LockTaskList().

See also

LockTaskList() NextTaskEntry()