/**********************************************************************
   module: TASK_MAN.C

   author: James R. Dos‚
   phone:  (214)-271-1365 Ext #221
   date:   July 25, 1994

   Public header for TASK_MAN.C, a low level timer task scheduler.

   (c) Copyright 1994 James R. Dos‚.  All Rights Reserved.
**********************************************************************/

#ifndef __TASK_MAN_H
#define __TASK_MAN_H

enum TASK_ERRORS
   {
   TASK_Warning = -2,
   TASK_Error = -1,
   TASK_Ok = 0
   };

typedef struct task
   {
   struct   task *next;
   struct   task *prev;
   void          ( *TaskService )( struct task * );
   void          *data;
   long          rate;
   volatile long count;
   int           priority;
   int           active;
   } task;

// TS_InInterrupt is TRUE during a taskman interrupt.
// Use this if you have code that may be used both outside
// and within interrupts.

extern volatile int TS_InInterrupt;

void    TS_Shutdown( void );
task    *TS_ScheduleTask( void ( *Function )( task * ), int rate,
                          int priority, void *data );
int     TS_Terminate( task *ptr );
void    TS_Dispatch( void );
void    TS_SetTaskRate( task *Task, int rate );
void    TS_UnlockMemory( void );
int     TS_LockMemory( void );

#endif
