wine/include/queue.h
Stephane Lussier 1c4786fedf - Made the message queue access to be thread safe. (Using two new
functions to access the message queue, QUEUE_Lock(), QUEUE_Unlock()
  instead of GlobalLock16()).
- Fixed QUEUE_DumpQueue (used by "info queue <handle>" with the
  wine-debugger).
1999-01-28 10:54:11 +00:00

132 lines
4.8 KiB
C

/*
* Message queues definitions
*
* Copyright 1993 Alexandre Julliard
*/
#ifndef __WINE_QUEUE_H
#define __WINE_QUEUE_H
#include "wine/winuser16.h"
#include "windows.h"
#include "thread.h"
/* Message as stored in the queue (contains the extraInfo field) */
typedef struct tagQMSG
{
MSG32 msg;
DWORD extraInfo; /* Only in 3.1 */
struct tagQMSG *nextMsg;
struct tagQMSG *prevMsg;
} QMSG;
typedef struct
{
LRESULT lResult;
BOOL16 bPending;
} QSMCTRL;
/* Per-queue system windows */
typedef struct tagPERQUEUEDATA
{
HWND32 hWndCapture;
HWND32 hWndFocus;
HWND32 hWndActive;
} PERQUEUEDATA;
typedef struct tagMESSAGEQUEUE
{
HQUEUE16 next; /* NNext queue */
HQUEUE16 self; /* Handle to self (was: reserved) */
THDB* thdb; /* Thread owning queue */
HANDLE32 hEvent; /* Event handle */
CRITICAL_SECTION cSection; /* Queue access critical section */
DWORD magic; /* magic number should be QUEUE_MAGIC */
DWORD lockCount; /* reference counter */
WORD flags; /* Queue flags */
WORD wWinVersion; /* Expected Windows version */
WORD msgCount; /* Number of waiting messages */
QMSG* firstMsg; /* First message in linked list */
QMSG* lastMsg; /* Last message in linked list */
WORD wPostQMsg; /* PostQuitMessage flag */
WORD wExitCode; /* PostQuitMessage exit code */
WORD wPaintCount; /* Number of WM_PAINT needed */
WORD wTimerCount; /* Number of timers for this task */
WORD changeBits; /* Changed wake-up bits */
WORD wakeBits; /* Queue wake-up bits */
WORD wakeMask; /* Queue wake-up mask */
DWORD GetMessageTimeVal; /* Value for GetMessageTime */
DWORD GetMessagePosVal; /* Value for GetMessagePos */
DWORD GetMessageExtraInfoVal; /* Value for GetMessageExtraInfo */
HQUEUE16 InSendMessageHandle; /* Queue of task that sent a message */
HTASK16 hSendingTask; /* Handle of task that sent a message */
HTASK16 hPrevSendingTask; /* Handle of previous sender */
HWND32 hWnd32; /* Send message arguments */
UINT32 msg32;
WPARAM32 wParam32;
LPARAM lParam;
DWORD SendMessageReturn; /* Return value for SendMessage */
QSMCTRL* smResultInit; /* SendMesage result pointers */
QSMCTRL* smResultCurrent;
QSMCTRL* smResult;
HANDLE16 hCurHook; /* Current hook */
HANDLE16 hooks[WH_NB_HOOKS]; /* Task hooks list */
HANDLE16 hPerQueue; /* handle on PERQUEUEDATA structure */
} MESSAGEQUEUE;
/* Extra (undocumented) queue wake bits - see "Undoc. Windows" */
#define QS_SMRESULT 0x8000 /* Queue has a SendMessage() result */
#define QS_SMPARAMSFREE 0x4000 /* SendMessage() parameters are available */
/* Queue flags */
#define QUEUE_SM_WIN32 0x0002 /* Currently sent message is Win32 */
#define QUEUE_SM_UNICODE 0x0004 /* Currently sent message is Unicode */
#define QUEUE_MAGIC 0xD46E80AF
extern MESSAGEQUEUE *QUEUE_Lock( HQUEUE16 hQueue );
extern void QUEUE_Unlock( MESSAGEQUEUE *queue );
extern void QUEUE_DumpQueue( HQUEUE16 hQueue );
extern void QUEUE_WalkQueues(void);
extern BOOL32 QUEUE_IsExitingQueue( HQUEUE16 hQueue );
extern void QUEUE_SetExitingQueue( HQUEUE16 hQueue );
extern MESSAGEQUEUE *QUEUE_GetSysQueue(void);
extern void QUEUE_Signal( THDB *thdb );
extern void QUEUE_SetWakeBit( MESSAGEQUEUE *queue, WORD bit );
extern void QUEUE_ClearWakeBit( MESSAGEQUEUE *queue, WORD bit );
extern void QUEUE_ReceiveMessage( MESSAGEQUEUE *queue );
extern void QUEUE_WaitBits( WORD bits );
extern void QUEUE_IncPaintCount( HQUEUE16 hQueue );
extern void QUEUE_DecPaintCount( HQUEUE16 hQueue );
extern void QUEUE_IncTimerCount( HQUEUE16 hQueue );
extern void QUEUE_DecTimerCount( HQUEUE16 hQueue );
extern BOOL32 QUEUE_CreateSysMsgQueue( );
extern BOOL32 QUEUE_DeleteMsgQueue( HQUEUE16 hQueue );
extern HTASK16 QUEUE_GetQueueTask( HQUEUE16 hQueue );
extern BOOL32 QUEUE_AddMsg( HQUEUE16 hQueue, MSG32 * msg, DWORD extraInfo );
extern QMSG* QUEUE_FindMsg( MESSAGEQUEUE * msgQueue, HWND32 hwnd,
int first, int last );
extern void QUEUE_RemoveMsg( MESSAGEQUEUE * msgQueue, QMSG *qmsg );
extern void QUEUE_FlushMessages(HQUEUE16);
extern void hardware_event( WORD message, WORD wParam, LONG lParam,
int xPos, int yPos, DWORD time, DWORD extraInfo );
extern HQUEUE16 WINAPI InitThreadInput( WORD unknown, WORD flags );
#endif /* __WINE_QUEUE_H */