13.24. TASK

13.24.2.1.1. Arguments

13.24.2.1.2. Returns

Returns numeric value - is the task identifier.

13.24.2.1.3. Description

START() starts task in parallel mode and passes it some parameters <vPar1>,,, <vParN>.

13.24.2.1.4. Example

    ts := @task2()
 ...
 
 ? START("task1", "Ann", "Jhon", "Mary")
 ...
 ? START(ts, 200, 100)
 ...
 ? START({|p1, p2| qout("Start code block"), ..., qout("Code block finished")})
 ...
 
 function task1(a, b, c)
 qout('Start task1')
 ...
 qout('task1 finished')
 return .T.
 
 static function task2(x, y)
 qout('Start task2')
 ...
 qout('task2 finished')
 return
 

13.24.2.1.5. Peculiarities

13.24.2.1.6. See also

TASKSTOP() TASKSTART()

13.24.2.1.7. Author of documentation

ITK

13.24.2.1.8. Platforms

No dependies of platform.

13.24.2.2.1. Arguments

No arguments

13.24.2.2.2. Returns

Returns var <vMsg>, what was sended from a TASKSENDMSG().

13.24.2.2.3. Description

TASKGETMSG() gets message from task input queue and returns it. If no message available, waits forever.

13.24.2.2.4. Example

  static id
 
 id := START("func1")
 
 for i:=1 to 10
 TASKSENDMSG(id, time())
 sleep(i)
 next
 
 ....
 
 function func1()
 do while .T.
 ? "task got: ", TASKGETMSG()
 enddo
 return
 

13.24.2.2.5. Peculiarities

13.24.2.2.6. See also

TASKSENDMSG() TASKPEEKMSG()

13.24.2.2.7. Author of documentation

ITK

13.24.2.2.8. Platforms

No dependies of platform.

13.24.2.3.1. Arguments

No arguments

13.24.2.3.2. Returns

Returns task identifier as numeric value.

13.24.2.3.3. Description

TASKID() returns current task identifier <nTaskID> as numeric value.

13.24.2.3.4. Example

   TASKSTOP()
 
 ? TASKID()
 
 TASKSTART()
 

13.24.2.3.5. Peculiarities

13.24.2.3.6. See also

13.24.2.3.7. Author of documentation

ITK

13.24.2.3.8. Platforms

No dependies of platform.

13.24.2.4.1. Arguments

No arguments

13.24.2.4.2. Returns

Returns var <vMsg>, what was sended from a TASKSENDMSG().

13.24.2.4.3. Description

TASKPEEKMSG() gets message from task input queue and returns it. If no message available, immediatly returns NIL.

13.24.2.4.4. Example

  static id
 
 id := START("func1")
 
 for i:=1 to 10
 TASKSENDMSG(id, time())
 sleep(i)
 next
 
 ....
 
 function func1()
 do while .T.
 ? "task got: ", TASKPEEKMSG()
 enddo
 return
 

13.24.2.4.5. Peculiarities

13.24.2.4.6. See also

TASKSENDMSG() TASKGETMSG()

13.24.2.4.7. Author of documentation

ITK

13.24.2.4.8. Platforms

No dependies of platform.

13.24.2.5.1. Arguments

13.24.2.5.2. Returns

Returns logical value <lResult>, TRUE if message was delivered.

13.24.2.5.3. Description

TASKSENDMSG() sends var <vMsg> to task with identifier <nReceiverID> and returns returns TRUE if operation successfully.

13.24.2.5.4. Example

  static id
 
 id := START("func1")
 
 for i:=1 to 10
 TASKSENDMSG(id, time())
 sleep(i)
 next
 
 ....
 
 function func1()
 do while .T.
 ? "task got: ", TASKGETMSG()
 enddo
 return
 

13.24.2.5.5. Peculiarities

13.24.2.5.6. See also

TASKGETMSG() TASKPEEKMSG()

13.24.2.5.7. Author of documentation

ITK

13.24.2.5.8. Platforms

No dependies of platform.

13.24.2.6.1. Arguments

No arguments

13.24.2.6.2. Returns

Returns NIL.

13.24.2.6.3. Description

TASKSTART() resumes all tasks what was stopped of function TASKSTOP().

13.24.2.6.4. Example

   function Task_stop()
 TASKSTOP()
 ....
 return
 
 ....
 Task_stop()
 
 TASKSTART()
 

13.24.2.6.5. Peculiarities

13.24.2.6.6. See also

TASKSTOP()

13.24.2.6.7. Author of documentation

ITK

13.24.2.6.8. Platforms

No dependies of platform.

13.24.2.7.1. Arguments

No arguments

13.24.2.7.2. Returns

Returns NIL.

13.24.2.7.3. Description

TASKSTOP() stopeds all tasks with the exclusion current task.

13.24.2.7.4. Example

   function Task_stop()
 TASKSTOP()
 ....
 return
 

13.24.2.7.5. Peculiarities

13.24.2.7.6. See also

TASKSTART()

13.24.2.7.7. Author of documentation

ITK

13.24.2.7.8. Platforms

No dependies of platform.