175 lines
7.2 KiB
C
175 lines
7.2 KiB
C
/*
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* Message queues definitions
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*
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* Copyright 1993 Alexandre Julliard
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*/
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#ifndef __WINE_QUEUE_H
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#define __WINE_QUEUE_H
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#include "wintypes.h"
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#include "wine/winuser16.h"
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#include "thread.h"
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/* Message as stored in the queue (contains the extraInfo field) */
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typedef struct tagQMSG
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{
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MSG32 msg;
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DWORD extraInfo; /* Only in 3.1 */
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struct tagQMSG *nextMsg;
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struct tagQMSG *prevMsg;
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} QMSG;
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typedef struct tagSMSG
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{
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struct tagSMSG *nextProcessing; /* next SMSG in the processing list */
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struct tagSMSG *nextPending; /* next SMSG in the pending list */
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struct tagSMSG *nextWaiting; /* next SMSG in the waiting list */
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HQUEUE16 hSrcQueue; /* sending Queue, (NULL if it didn't wait) */
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HQUEUE16 hDstQueue; /* destination Queue */
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HWND32 hWnd; /* destinantion window */
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UINT32 msg; /* message sent */
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WPARAM32 wParam; /* wParam of the sent message */
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LPARAM lParam; /* lParam of the sent message */
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LRESULT lResult; /* result of SendMessage */
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WORD flags; /* see below SMSG_XXXX */
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} SMSG;
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/* SMSG -> flags values */
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/* set when lResult contains a good value */
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#define SMSG_HAVE_RESULT 0x0001
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/* protection for multiple call to ReplyMessage16() */
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#define SMSG_ALREADY_REPLIED 0x0002
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/* use with EARLY_REPLY for forcing the receiver to clean SMSG */
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#define SMSG_RECEIVER_CLEANS 0x0010
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/* used with EARLY_REPLY to indicate to sender, receiver is done with SMSG */
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#define SMSG_RECEIVED 0x0020
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/* set in ReceiveMessage() to indicate it's not an early reply */
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#define SMSG_SENDING_REPLY 0x0040
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/* set when ReplyMessage16() is called by the application */
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#define SMSG_EARLY_REPLY 0x0080
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/* set when sender is Win32 thread */
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#define SMSG_WIN32 0x1000
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/* set when sender is a unnicode thread */
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#define SMSG_UNICODE 0x2000
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/* Per-queue data for the message queue
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* Note that we currently only store the current values for
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* Active, Capture and Focus windows currently.
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* It might be necessary to store a pointer to the system message queue
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* as well since windows 9x maintains per thread system message queues
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*/
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typedef struct tagPERQUEUEDATA
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{
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HWND32 hWndFocus; /* Focus window */
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HWND32 hWndActive; /* Active window */
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HWND32 hWndCapture; /* Capture window */
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INT16 nCaptureHT; /* Capture info (hit-test) */
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ULONG ulRefCount; /* Reference count */
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CRITICAL_SECTION cSection; /* Critical section for thread safe access */
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} PERQUEUEDATA;
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/* Message queue */
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typedef struct tagMESSAGEQUEUE
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{
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HQUEUE16 next; /* Next queue */
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HQUEUE16 self; /* Handle to self (was: reserved) */
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THDB* thdb; /* Thread owning queue */
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HANDLE32 hEvent; /* Event handle */
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CRITICAL_SECTION cSection; /* Queue access critical section */
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DWORD magic; /* magic number should be QUEUE_MAGIC */
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DWORD lockCount; /* reference counter */
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WORD wWinVersion; /* Expected Windows version */
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WORD msgCount; /* Number of waiting messages */
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QMSG* firstMsg; /* First message in linked list */
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QMSG* lastMsg; /* Last message in linked list */
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WORD wPostQMsg; /* PostQuitMessage flag */
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WORD wExitCode; /* PostQuitMessage exit code */
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WORD wPaintCount; /* Number of WM_PAINT needed */
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WORD wTimerCount; /* Number of timers for this task */
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WORD changeBits; /* Changed wake-up bits */
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WORD wakeBits; /* Queue wake-up bits */
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WORD wakeMask; /* Queue wake-up mask */
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DWORD GetMessageTimeVal; /* Value for GetMessageTime */
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DWORD GetMessagePosVal; /* Value for GetMessagePos */
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DWORD GetMessageExtraInfoVal; /* Value for GetMessageExtraInfo */
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SMSG* smWaiting; /* SendMessage waiting for reply */
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SMSG* smProcessing; /* SendMessage currently being processed */
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SMSG* smPending; /* SendMessage waiting to be received */
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HANDLE16 hCurHook; /* Current hook */
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HANDLE16 hooks[WH_NB_HOOKS]; /* Task hooks list */
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PERQUEUEDATA *pQData; /* pointer to (shared) PERQUEUEDATA structure */
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} MESSAGEQUEUE;
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/* Extra (undocumented) queue wake bits - see "Undoc. Windows" */
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#define QS_SMRESULT 0x8000 /* Queue has a SendMessage() result */
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/* Types of SMSG stack */
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#define SM_PROCESSING_LIST 1 /* list of SM currently being processed */
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#define SM_PENDING_LIST 2 /* list of SM wating to be received */
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#define SM_WAITING_LIST 3 /* list of SM waiting for reply */
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#define QUEUE_MAGIC 0xD46E80AF
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/* Per queue data management methods */
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PERQUEUEDATA* PERQDATA_CreateInstance( void );
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ULONG PERQDATA_Addref( PERQUEUEDATA* pQData );
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ULONG PERQDATA_Release( PERQUEUEDATA* pQData );
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HWND32 PERQDATA_GetFocusWnd( PERQUEUEDATA *pQData );
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HWND32 PERQDATA_SetFocusWnd( PERQUEUEDATA *pQData, HWND32 hWndFocus );
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HWND32 PERQDATA_GetActiveWnd( PERQUEUEDATA *pQData );
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HWND32 PERQDATA_SetActiveWnd( PERQUEUEDATA *pQData, HWND32 hWndActive );
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HWND32 PERQDATA_GetCaptureWnd( PERQUEUEDATA *pQData );
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HWND32 PERQDATA_SetCaptureWnd( PERQUEUEDATA *pQData, HWND32 hWndCapture );
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INT16 PERQDATA_GetCaptureInfo( PERQUEUEDATA *pQData );
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INT16 PERQDATA_SetCaptureInfo( PERQUEUEDATA *pQData, INT16 nCaptureHT );
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/* Message queue management methods */
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extern MESSAGEQUEUE *QUEUE_Lock( HQUEUE16 hQueue );
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extern void QUEUE_Unlock( MESSAGEQUEUE *queue );
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extern void QUEUE_DumpQueue( HQUEUE16 hQueue );
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extern void QUEUE_WalkQueues(void);
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extern BOOL32 QUEUE_IsExitingQueue( HQUEUE16 hQueue );
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extern void QUEUE_SetExitingQueue( HQUEUE16 hQueue );
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extern MESSAGEQUEUE *QUEUE_GetSysQueue(void);
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extern void QUEUE_SetWakeBit( MESSAGEQUEUE *queue, WORD bit );
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extern void QUEUE_ClearWakeBit( MESSAGEQUEUE *queue, WORD bit );
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extern void QUEUE_ReceiveMessage( MESSAGEQUEUE *queue );
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extern void QUEUE_WaitBits( WORD bits );
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extern void QUEUE_IncPaintCount( HQUEUE16 hQueue );
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extern void QUEUE_DecPaintCount( HQUEUE16 hQueue );
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extern void QUEUE_IncTimerCount( HQUEUE16 hQueue );
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extern void QUEUE_DecTimerCount( HQUEUE16 hQueue );
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extern BOOL32 QUEUE_CreateSysMsgQueue( int size );
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extern BOOL32 QUEUE_DeleteMsgQueue( HQUEUE16 hQueue );
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extern HTASK16 QUEUE_GetQueueTask( HQUEUE16 hQueue );
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extern BOOL32 QUEUE_AddMsg( HQUEUE16 hQueue, MSG32 * msg, DWORD extraInfo );
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extern QMSG* QUEUE_FindMsg( MESSAGEQUEUE * msgQueue, HWND32 hwnd,
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int first, int last );
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extern void QUEUE_RemoveMsg( MESSAGEQUEUE * msgQueue, QMSG *qmsg );
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extern SMSG *QUEUE_RemoveSMSG( MESSAGEQUEUE *queue, int list, SMSG *smsg );
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extern BOOL32 QUEUE_AddSMSG( MESSAGEQUEUE *queue, int list, SMSG *smsg );
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extern void hardware_event( WORD message, WORD wParam, LONG lParam,
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int xPos, int yPos, DWORD time, DWORD extraInfo );
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extern HQUEUE16 WINAPI InitThreadInput( WORD unknown, WORD flags );
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#endif /* __WINE_QUEUE_H */
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