msgobject.h

来自「一个更为先进的嵌入式操作系统.采用RMS线程调度算法,具有信号量等同步对象.亦包」· C头文件 代码 · 共 87 行

#ifndef _GOS_MSGOBJECT_H_
#define _GOS_MSGOBJECT_H_

#define MAKEMSG(pri,cls,index) (((pri)<<24)|((cls)<<16)|(index))
#define GetMsgPriority(msg) ((msg)>>24)
#define GetMsgClass(msg) (((msg)>>16)&0xff)
#define GetMsgIndex(msg) ((msg)&0xffff)
#define	IsUniqueMessage(msg) ((msg) & 0x8000)
#define MakeEventMessage(pri) MAKEMSG(pri,0,0x7ffeL)
#define IsEventMessage(msg) (((msg) & 0xffffff)==0x007ffe)
#define MakeTimerMessage(pri) MAKEMSG(pri,0,0x7fff)
#define IsTimerMessage(msg) (((msg) & 0xffffff)==0x007fff)

enum _tagMsgObject
{
	PriorityNull=0,
	PriorityRealTime,
	PriorityTimeCritical=225,
	PriorityHighest=238,
	PriorityAboveNormal=239,
	PriorityNormal=240,
	PriorityBelowNormal=241,
	PriorityLowset=242,
	PriorityIdle=255,

	MsgPriMask=0xFF000000,
	MsgClassMask=0x00FF0000,
	MsgNumberMask=0x0000FFFF,

	MsgClassNull=0,
	MsgClassPower,
	MsgClassHINT,
	MsgClassSINT,
	MsgClassGPIO,
	MsgClassDPC,
	MsgClassAPC,
	MsgClassHAL,
	MsgClassDriver,
	MsgClassKernel,
	MsgClassThread,
	MsgClassFS,
	MsgClassService,
	MsgClassAPP,
	MsgClassGUI,
	MsgClassIdle=255,

	msgNull=0,
	msgSendMessage=MAKEMSG(PriorityHighest,MsgClassNull,1L),
	msgUser=MAKEMSG(PriorityNormal,MsgClassNull,1L),
	msgGetMQThread=0xffffFFFB,
	msgEvent,
	msgTimer,
	msgIdle,
	msgQuit,
};

class CMsgObject;
class CThread;

typedef struct _tagMSG
{
	CMsgObject* pObj;
    UINT  message;
    WPARAM wParam;
    LPARAM lParam;
}MSG,*PMSG;

class CMsgObject
{
public:
	virtual LRESULT MsgProc(UINT message, WPARAM wParam, LPARAM lParam); //消息处理函数
public:
	CThread* GetMQThread(void)
		{ return (CThread*)MsgProc(msgGetMQThread,0,0);}
	LRESULT SendMessage(UINT message, WPARAM wParam, LPARAM lParam); //发送消息
	HANDLE PostMessage(UINT message, WPARAM wParam, LPARAM lParam); //邮寄消息
	HANDLE SetMessageEvent(int nPriority);
	BOOL RemoveMessage(HANDLE hMsg);
	BOOL RemoveMessage(UINT nMessage);
	BOOL RemoveAllMessage();
	void PulseMessageEvent(HANDLE hMsg,WPARAM wParam, LPARAM lParam);
	void SetTimer(HANDLE hMsg,UINT nElapse);
	HANDLE SetTimer(UINT nIDEvent,UINT nElapse,int nPriority=PriorityIdle);
	BOOL KillTimer(UINT nIDEvent);
};

#endif //_GOS_MSGOBJECT_H_