maintask.c

来自「ucgu最新版本 4.14」· C语言 代码 · 共 101 行

/*********************************************************************
*                SEGGER MICROCONTROLLER SYSTEME GmbH                 *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*        (c) 1996 - 2007  SEGGER Microcontroller Systeme GmbH        *
*                                                                    *
*        Internet: www.segger.com    Support:  [e-mail]    *
*                                                                    *
**********************************************************************

** emWin V4.14 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws.   Knowledge of the
source code may not be used to write a similar product.  This file may
only be used in accordance with a license and should not be re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File        : MainTask.c
Purpose     : Starts multitasking of the multiuser sample
----------------------------------------------------------------------
*/

#include "GUI.h"
#include "GUI_X.h"
#include <stddef.h>

#if GUI_OS == 0
  #error Multitasking sample requires task awareness (#define GUI_OS 1)
#endif

#ifndef WIN32 
  #include "RTOS.h"    /* Definitions for embOS */
  #define CREATE_TASK(pTCB, pName, pFunc, Priority, pStack)  OS_CREATETASK(pTCB, pName, pFunc, Priority, pStack)
  #define START_MT()  OS_Terminate(0)
  #define DELAY(t)    OS_Delay(t)
#else
  #include "SIM.h"     /* Definitions for the Win32 simulation */
  #define CREATE_TASK(pTCB, pName, pFunc, Priority, pStack)   SIM_CreateTask(pName, pFunc)
  #define START_MT()  SIM_Start()
  #define DELAY(t)    SIM_Delay(t)
#endif

void Task_0(void);
void Task_1(void);
void Task_2(void);

/*******************************************************************
*
*       Static data
*
********************************************************************
*/
#ifndef WIN32
  /* Stacks */
  static OS_STACKPTR int Stack_0[1200];
  static OS_STACKPTR int Stack_1[1200];
  static OS_STACKPTR int Stack_2[1200];
  static OS_STACKPTR int Stack_3[1200];
  static OS_TASK aTCB[4];               /* Task control blocks */
#endif

/*******************************************************************
*
*       Static code
*
********************************************************************
*/
/*******************************************************************
*
*       _GUI_Task
*
  This task does the background processing.
  The MainTask job is to update invalid windows, but other things such as
  evaluating mouse or touch input may also be done.
*/
static void _GUI_Task(void) {
  DELAY(500);
  while(1) {
    GUI_Exec();           /* Do the background work ... Update windows etc.) */
    GUI_X_ExecIdle();     /* Nothing left to do for the moment ... Idle processing */
  }
}

/*******************************************************************
*
*       MainTask
*
********************************************************************
*/
void MainTask(void) {
  /* Init GUI */
  GUI_Init();
  /* Create tasks */
  CREATE_TASK(&aTCB[0], "Task_0",   Task_0,   100, Stack_0);
  CREATE_TASK(&aTCB[1], "Task_1",   Task_1,    50, Stack_1);
  CREATE_TASK(&aTCB[2], "Task_2",   Task_2,    50, Stack_2);
  CREATE_TASK(&aTCB[3], "GUI_TASK", _GUI_Task,  1, Stack_3);
  /* Start multitasking */
  START_MT();
}