source: trunk/include/win/queue.h@ 3522

Last change on this file since 3522 was 3522, checked in by sandervl, 25 years ago

header updates
File size: 7.0 KB
Line 
1/* $Id: queue.h,v 1.2 2000-05-12 18:04:11 sandervl Exp $ */
2
3/*
4 * Message queues definitions
5 *
6 * Copyright 1993 Alexandre Julliard
7 */
8
9#ifndef __WINE_QUEUE_H
10#define __WINE_QUEUE_H
11
12#include "windef.h"
13#include "winuser.h"
14#include "thread.h"
15
16
17typedef struct tagSMSG
18{
19 struct tagSMSG *nextProcessing; /* next SMSG in the processing list */
20 struct tagSMSG *nextPending; /* next SMSG in the pending list */
21 struct tagSMSG *nextWaiting; /* next SMSG in the waiting list */
22
23 HQUEUE16 hSrcQueue; /* sending Queue, (NULL if it didn't wait) */
24 HQUEUE16 hDstQueue; /* destination Queue */
25
26 HWND hWnd; /* destinantion window */
27 UINT msg; /* message sent */
28 WPARAM wParam; /* wParam of the sent message */
29 LPARAM lParam; /* lParam of the sent message */
30
31 LRESULT lResult; /* result of SendMessage */
32 WORD flags; /* see below SMSG_XXXX */
33} SMSG;
34
35
36/* SMSG -> flags values */
37/* set when lResult contains a good value */
38#define SMSG_HAVE_RESULT 0x0001
39/* protection for multiple call to ReplyMessage16() */
40#define SMSG_ALREADY_REPLIED 0x0002
41/* use with EARLY_REPLY for forcing the receiver to clean SMSG */
42#define SMSG_RECEIVER_CLEANS 0x0010
43/* used with EARLY_REPLY to indicate to sender, receiver is done with SMSG */
44#define SMSG_RECEIVED 0x0020
45/* set in ReceiveMessage() to indicate it's not an early reply */
46#define SMSG_SENDING_REPLY 0x0040
47/* set when ReplyMessage16() is called by the application */
48#define SMSG_EARLY_REPLY 0x0080
49/* set when sender is Win32 thread */
50#define SMSG_WIN32 0x1000
51/* set when sender is a unnicode thread */
52#define SMSG_UNICODE 0x2000
53
54/* Per-queue data for the message queue
55 * Note that we currently only store the current values for
56 * Active, Capture and Focus windows currently.
57 * It might be necessary to store a pointer to the system message queue
58 * as well since windows 9x maintains per thread system message queues
59 */
60typedef struct tagPERQUEUEDATA
61{
62 HWND hWndFocus; /* Focus window */
63 HWND hWndActive; /* Active window */
64 HWND hWndCapture; /* Capture window */
65 INT16 nCaptureHT; /* Capture info (hit-test) */
66 ULONG ulRefCount; /* Reference count */
67 CRITICAL_SECTION cSection; /* Critical section for thread safe access */
68} PERQUEUEDATA;
69
70/* Message queue */
71typedef struct tagMESSAGEQUEUE
72{
73 HQUEUE16 next; /* Next queue */
74 HQUEUE16 self; /* Handle to self (was: reserved) */
75 THDB* thdb; /* Thread owning queue */
76 HANDLE hEvent; /* Event handle */
77 CRITICAL_SECTION cSection; /* Queue access critical section */
78
79 DWORD magic; /* magic number should be QUEUE_MAGIC */
80 DWORD lockCount; /* reference counter */
81 WORD wWinVersion; /* Expected Windows version */
82
83 WORD msgCount; /* Number of waiting messages */
84 QMSG* firstMsg; /* First message in linked list */
85 QMSG* lastMsg; /* Last message in linked list */
86
87 WORD wPostQMsg; /* PostQuitMessage flag */
88 WORD wExitCode; /* PostQuitMessage exit code */
89 WORD wPaintCount; /* Number of WM_PAINT needed */
90 WORD wTimerCount; /* Number of timers for this task */
91
92 WORD changeBits; /* Changed wake-up bits */
93 WORD wakeBits; /* Queue wake-up bits */
94 WORD wakeMask; /* Queue wake-up mask */
95
96 DWORD GetMessageTimeVal; /* Value for GetMessageTime */
97 DWORD GetMessagePosVal; /* Value for GetMessagePos */
98 DWORD GetMessageExtraInfoVal; /* Value for GetMessageExtraInfo */
99
100 SMSG* smWaiting; /* SendMessage waiting for reply */
101 SMSG* smProcessing; /* SendMessage currently being processed */
102 SMSG* smPending; /* SendMessage waiting to be received */
103
104 HANDLE16 hCurHook; /* Current hook */
105 HANDLE16 hooks[WH_NB_HOOKS]; /* Task hooks list */
106
107 PERQUEUEDATA *pQData; /* pointer to (shared) PERQUEUEDATA structure */
108
109} MESSAGEQUEUE;
110
111
112/* Extra (undocumented) queue wake bits - see "Undoc. Windows" */
113#define QS_SMRESULT 0x8000 /* Queue has a SendMessage() result */
114
115/* Types of SMSG stack */
116#define SM_PROCESSING_LIST 1 /* list of SM currently being processed */
117#define SM_PENDING_LIST 2 /* list of SM wating to be received */
118#define SM_WAITING_LIST 3 /* list of SM waiting for reply */
119
120#define QUEUE_MAGIC 0xD46E80AF
121
122/* Per queue data management methods */
123PERQUEUEDATA* PERQDATA_CreateInstance( void );
124ULONG PERQDATA_Addref( PERQUEUEDATA* pQData );
125ULONG PERQDATA_Release( PERQUEUEDATA* pQData );
126HWND PERQDATA_GetFocusWnd( PERQUEUEDATA *pQData );
127HWND PERQDATA_SetFocusWnd( PERQUEUEDATA *pQData, HWND hWndFocus );
128HWND PERQDATA_GetActiveWnd( PERQUEUEDATA *pQData );
129HWND PERQDATA_SetActiveWnd( PERQUEUEDATA *pQData, HWND hWndActive );
130HWND PERQDATA_GetCaptureWnd( PERQUEUEDATA *pQData );
131HWND PERQDATA_SetCaptureWnd( PERQUEUEDATA *pQData, HWND hWndCapture );
132INT16 PERQDATA_GetCaptureInfo( PERQUEUEDATA *pQData );
133INT16 PERQDATA_SetCaptureInfo( PERQUEUEDATA *pQData, INT16 nCaptureHT );
134
135/* Message queue management methods */
136extern MESSAGEQUEUE *QUEUE_Lock( HQUEUE16 hQueue );
137extern void QUEUE_Unlock( MESSAGEQUEUE *queue );
138extern void QUEUE_DumpQueue( HQUEUE16 hQueue );
139extern void QUEUE_WalkQueues(void);
140extern BOOL QUEUE_IsExitingQueue( HQUEUE16 hQueue );
141extern void QUEUE_SetExitingQueue( HQUEUE16 hQueue );
142extern MESSAGEQUEUE *QUEUE_GetSysQueue(void);
143extern void QUEUE_SetWakeBit( MESSAGEQUEUE *queue, WORD bit );
144extern void QUEUE_ClearWakeBit( MESSAGEQUEUE *queue, WORD bit );
145extern void QUEUE_ReceiveMessage( MESSAGEQUEUE *queue );
146extern int QUEUE_WaitBits( WORD bits, DWORD timeout );
147extern void QUEUE_IncPaintCount( HQUEUE16 hQueue );
148extern void QUEUE_DecPaintCount( HQUEUE16 hQueue );
149extern void QUEUE_IncTimerCount( HQUEUE16 hQueue );
150extern void QUEUE_DecTimerCount( HQUEUE16 hQueue );
151extern BOOL QUEUE_CreateSysMsgQueue( int size );
152extern BOOL QUEUE_DeleteMsgQueue( HQUEUE16 hQueue );
153extern HTASK16 QUEUE_GetQueueTask( HQUEUE16 hQueue );
154extern BOOL QUEUE_AddMsg( HQUEUE16 hQueue, MSG * msg, DWORD extraInfo );
155extern QMSG* QUEUE_FindMsg( MESSAGEQUEUE * msgQueue, HWND hwnd,
156 int first, int last );
157extern void QUEUE_RemoveMsg( MESSAGEQUEUE * msgQueue, QMSG *qmsg );
158extern SMSG *QUEUE_RemoveSMSG( MESSAGEQUEUE *queue, int list, SMSG *smsg );
159extern BOOL QUEUE_AddSMSG( MESSAGEQUEUE *queue, int list, SMSG *smsg );
160extern void hardware_event( WORD message, WORD wParam, LONG lParam,
161 int xPos, int yPos, DWORD time, DWORD extraInfo );
162
163extern HQUEUE16 WINAPI InitThreadInput16( WORD unknown, WORD flags );
164
165#endif /* __WINE_QUEUE_H */
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