client.h revision bbe1b32b 
1/* $Xorg: client.h,v 1.4 2001/02/09 02:05:43 xorgcvs Exp $ */
2/*
3
4Copyright 1990, 1991, 1998  The Open Group
5
6Permission to use, copy, modify, distribute, and sell this software and its
7documentation for any purpose is hereby granted without fee, provided that
8the above copyright notice appear in all copies and that both that
9copyright notice and this permission notice appear in supporting
10documentation.
11
12The above copyright notice and this permission notice shall be included in
13all copies or substantial portions of the Software.
14
15THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
18OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22Except as contained in this notice, the name of The Open Group shall not be
23used in advertising or otherwise to promote the sale, use or other dealings
24in this Software without prior written authorization from The Open Group.
25
26 * Copyright 1990, 1991 Network Computing Devices;
27 * Portions Copyright 1987 by Digital Equipment Corporation
28 *
29 * Permission to use, copy, modify, distribute, and sell this software and
30 * its documentation for any purpose is hereby granted without fee, provided
31 * that the above copyright notice appear in all copies and that both that
32 * copyright notice and this permission notice appear in supporting
33 * documentation, and that the names of Network Computing Devices, or Digital
34 * not be used in advertising or publicity pertaining to distribution
35 * of the software without specific, written prior permission.
36 *
37 * NETWORK COMPUTING DEVICES, AND DIGITAL DISCLAIM ALL WARRANTIES WITH
38 * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
39 * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES,
40 * OR DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
41 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
42 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
43 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
44 * THIS SOFTWARE.
45 */
46/* $XFree86: xc/programs/xfs/include/client.h,v 1.6 2001/01/17 23:45:31 dawes Exp $ */
47
48#ifndef	_CLIENT_H_
49#define	_CLIENT_H_
50
51#ifndef _XTYPEDEF_CLIENTPTR
52typedef struct _Client *ClientPtr;
53#define _XTYPEDEF_CLIENTPTR
54#endif
55
56#include <misc.h>
57
58extern ClientPtr *clients;
59extern ClientPtr serverClient;
60
61#define	NullClient	((ClientPtr) NULL)
62
63#define	SERVER_CLIENT	0
64#define	MINCLIENT	1
65
66#define	CLIENT_ALIVE		0
67#define	CLIENT_GONE		1
68#define	CLIENT_AGED		2
69#define	CLIENT_TIMED_OUT	4
70
71#define	REQUEST(type)	\
72	type *stuff = (type *)client->requestBuffer
73
74#define	REQUEST_FIXED_SIZE(fs_req, n)					\
75	if (((SIZEOF(fs_req) >> 2) > stuff->length) ||			\
76		(((SIZEOF(fs_req) + (n) + 3) >> 2) != stuff->length)) {	\
77	    int lengthword = stuff->length;				\
78	    SendErrToClient(client, FSBadLength, (pointer)&lengthword); \
79	    return (FSBadLength);	\
80	}
81
82#define	REQUEST_SIZE_MATCH(fs_req)				\
83	if ((SIZEOF(fs_req) >> 2) != stuff->length) {	\
84	    int lengthword = stuff->length;				\
85	    SendErrToClient(client, FSBadLength, (pointer)&lengthword); \
86	    return (FSBadLength);	\
87	}
88
89#define	REQUEST_AT_LEAST_SIZE(fs_req)					\
90	if ((SIZEOF(fs_req) >> 2) > stuff->length) {			\
91	    int lengthword = stuff->length;				\
92	    SendErrToClient(client, FSBadLength, (pointer)&lengthword); \
93	    return (FSBadLength);	\
94	}
95
96#define	WriteReplyToClient(client, size, reply)			\
97	if ((client)->swapped)						\
98	    (*ReplySwapVector[((fsReq *)(client)->requestBuffer)->reqType]) \
99		(client, (int)(size), reply);				\
100	else	(void)WriteToClient(client, (int)(size), (char *)(reply));
101
102#define	WriteSwappedDataToClient(client, size, pbuf)		\
103	if ((client)->swapped)						\
104	    (*(client)->pSwapReplyFunc)(client, (int)(size), pbuf);	\
105	else (void) WriteToClient(client, (int)(size), (char *)(pbuf));
106
107
108typedef struct _WorkQueue       *WorkQueuePtr;
109
110#include <difsutils.h> /* for ProcessWorkQueue(void) */
111
112extern int  (*ProcVector[]) (ClientPtr);
113extern int  (*SwappedProcVector[]) (ClientPtr);
114
115#endif				/* _CLIENT_H_ */
116