Scheduler - IIgs Toolbox Reference
                                                                            
Index

    Housekeeping Routines
    
     SchBootInit
     SchStartUp
     SchShutDown
     SchVersion
     SchReset
     SchStatus
     
    Scheduler Queue Routines
    
     SchAddTask
     SchFlush
     
   
   _________________________________________________________________
   
   
   
$0107

SchBootInit

   Initializes the Scheduler; called only by the Tool Locator when the
   Scheduler is loaded.
   
    Warning
    
   An application must never make this call.
   
  Parameters
  
   There are no input or output parameters.
   
  Errors
  
   None
   
  C
  
   You shouldn't call this function.
   _________________________________________________________________
   
$0207

SchStartUp

   Starts up the Scheduler; you must call this before using any other
   Scheduler calls.
   
  Parameters
  
   There are no input or output parameters.
   
  Errors
  
   None
   
  C
  
   extern pascal void SchStartUp(void)
   _________________________________________________________________
   
$0307

SchShutDown

   Shuts down the Scheduler; if you called SchStartUp, you must call this
   before your program exits.
   
  Parameters
  
   There are no input or output parameters.
   
  Errors
  
   None
   
  C
  
   extern pascal void SchShutDown(void)
   _________________________________________________________________
   
$0407

SchVersion

   Returns the version number of the Scheduler.
   
  Parameters
  
  Input:
  
   wordspace Word -- Space for result
   
  Output:
  
   versionInfo Word -- Version number of Scheduler.
   
  Errors
  
   None
   
  C
  
   extern pascal Word SchVersion(void)
   _________________________________________________________________
   
$0507

SchReset

   Resets the Scheduler. The Tool Locator calls this when the system is
   reset; you should never issue this call.
   
    Warning
    
   An application must never make this call.
   
  Parameters
  
   There are no input or output parameters.
   
  Errors
  
   None
   
  C
  
   You shouldn't call this function.
   _________________________________________________________________
   
$0907

SchStatus

   Indicates whether or not the Scheduler is active.
   
  Parameters
  
  Input:
  
   wordspace Word -- Space for result
   
  Output:
  
   status Word -- TRUE if Scheduler is active, FALSE if not.
   
  Errors
  
   None
   
  C
  
   extern pascal Word SchStatus(void)
   _________________________________________________________________
   
$0607

SchAddTask

   Adds a task to the Scheduler queue. There's room for up to four items
   at a time, which is enough to keep the Desk Manager happy and support
   other interrupt handlers as well.
   
   If the task can't be added to the queue because the queue is full,
   SchAddTask returns FALSE.
   
   The Scheduler calls the procedure pointed to by taskPtr with a JSL.
   This occurs the next time the system busy flag is decremented to zero.
   
  Parameters
  
  Input:
  
   wordspace Word -- Space for result
   taskPtr Long -- Pointer to task to add
   
  Output:
  
   onQueueFlag Word -- TRUE if task added, FALSE if not.
   
  Errors
  
   None
   
  C
  
   extern pascal Word SchAddTask(VoidProcPtr taskPtr)
   _________________________________________________________________
   
$0A07

SchFlush

   Flushes all tasks in the Scheduler's queue.
   
    Warning
    
   An application must never make this call.
   
  Parameters
  
   There are no input or output parameters.
   
  Errors
  
   None
   
  C
  
   You shouldn't call this function.
   
   
______________________________________________________________________________
This text file is freely available public domain information. As
such...It may be duplicated or reprinted, in whole or in part, without
the express written permission of anybody.