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1.1 root 1: /***********************************************************
2: Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
3: and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
4:
5: All Rights Reserved
6:
7: Permission to use, copy, modify, and distribute this software and its
8: documentation for any purpose and without fee is hereby granted,
9: provided that the above copyright notice appear in all copies and that
10: both that copyright notice and this permission notice appear in
11: supporting documentation, and that the names of Digital or MIT not be
12: used in advertising or publicity pertaining to distribution of the
13: software without specific, written prior permission.
14:
15: DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
16: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
17: DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
18: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
19: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
20: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
21: SOFTWARE.
22:
23: ******************************************************************/
24: /* $XConsortium: osdep.h,v 1.15 88/09/06 15:50:47 jim Exp $ */
25:
26: #ifndef NULL
27: #define NULL 0
28: #endif
29:
30: #define BUFSIZE 4096
31: #define BUFWATERMARK 8192
32: #define MAXBUFSIZE (1 << 18)
33: #if (NOFILE <= 128) /* 128 is value of MAXCLIENTS in dix layer */
34: #define MAXSOCKS (NOFILE - 1)
35: #else
36: #define MAXSOCKS 128
37: #endif
38: #define mskcnt ((MAXSOCKS + 31) / 32) /* size of bit array */
39:
40: #if (mskcnt==1)
41: #define BITMASK(i) (1 << (i))
42: #define MASKIDX(i) 0
43: #endif
44: #if (mskcnt>1)
45: #define BITMASK(i) (1 << ((i) & 31))
46: #define MASKIDX(i) ((i) >> 5)
47: #endif
48:
49: #define MASKWORD(buf, i) buf[MASKIDX(i)]
50: #define BITSET(buf, i) MASKWORD(buf, i) |= BITMASK(i)
51: #define BITCLEAR(buf, i) MASKWORD(buf, i) &= ~BITMASK(i)
52: #define GETBIT(buf, i) (MASKWORD(buf, i) & BITMASK(i))
53:
54: #if (mskcnt==1)
55: #define COPYBITS(src, dst) dst[0] = src[0]
56: #define CLEARBITS(buf) buf[0] = 0
57: #define MASKANDSETBITS(dst, b1, b2) dst[0] = (b1[0] & b2[0])
58: #define ORBITS(dst, b1, b2) dst[0] = (b1[0] | b2[0])
59: #define UNSETBITS(dst, b1) (dst[0] &= ~b1[0])
60: #define ANYSET(src) (src[0])
61: #endif
62: #if (mskcnt==2)
63: #define COPYBITS(src, dst) dst[0] = src[0]; dst[1] = src[1]
64: #define CLEARBITS(buf) buf[0] = 0; buf[1] = 0
65: #define MASKANDSETBITS(dst, b1, b2) \
66: dst[0] = (b1[0] & b2[0]);\
67: dst[1] = (b1[1] & b2[1])
68: #define ORBITS(dst, b1, b2) \
69: dst[0] = (b1[0] | b2[0]);\
70: dst[1] = (b1[1] | b2[1])
71: #define UNSETBITS(dst, b1) \
72: dst[0] &= ~b1[0]; \
73: dst[1] &= ~b1[1]
74: #define ANYSET(src) (src[0] || src[1])
75: #endif
76: #if (mskcnt==3)
77: #define COPYBITS(src, dst) dst[0] = src[0]; dst[1] = src[1]; dst[2] = src[2];
78: #define CLEARBITS(buf) buf[0] = 0; buf[1] = 0; buf[2] = 0
79: #define MASKANDSETBITS(dst, b1, b2) \
80: dst[0] = (b1[0] & b2[0]);\
81: dst[1] = (b1[1] & b2[1]);\
82: dst[2] = (b1[2] & b2[2])
83: #define ORBITS(dst, b1, b2) \
84: dst[0] = (b1[0] | b2[0]);\
85: dst[1] = (b1[1] | b2[1]);\
86: dst[2] = (b1[2] | b2[2])
87: #define UNSETBITS(dst, b1) \
88: dst[0] &= ~b1[0]; \
89: dst[1] &= ~b1[1]; \
90: dst[2] &= ~b1[2]
91: #define ANYSET(src) (src[0] || src[1] || src[2])
92: #endif
93: #if (mskcnt==4)
94: #define COPYBITS(src, dst) dst[0] = src[0]; dst[1] = src[1]; dst[2] = src[2];\
95: dst[3] = src[3]
96: #define CLEARBITS(buf) buf[0] = 0; buf[1] = 0; buf[2] = 0; buf[3] = 0
97: #define MASKANDSETBITS(dst, b1, b2) \
98: dst[0] = (b1[0] & b2[0]);\
99: dst[1] = (b1[1] & b2[1]);\
100: dst[2] = (b1[2] & b2[2]);\
101: dst[3] = (b1[3] & b2[3])
102: #define ORBITS(dst, b1, b2) \
103: dst[0] = (b1[0] | b2[0]);\
104: dst[1] = (b1[1] | b2[1]);\
105: dst[2] = (b1[2] | b2[2]);\
106: dst[3] = (b1[3] | b2[3])
107: #define UNSETBITS(dst, b1) \
108: dst[0] &= ~b1[0]; \
109: dst[1] &= ~b1[1]; \
110: dst[2] &= ~b1[2]; \
111: dst[3] &= ~b1[3]
112: #define ANYSET(src) (src[0] || src[1] || src[2] || src[3])
113: #endif
114:
115: #if (mskcnt>4)
116: #define COPYBITS(src, dst) bcopy((caddr_t) src, (caddr_t) dst,\
117: mskcnt*sizeof(long))
118: #define CLEARBITS(buf) bzero((caddr_t) buf, mskcnt*sizeof(long))
119: #define MASKANDSETBITS(dst, b1, b2) \
120: { int cri; \
121: for (cri=0; cri<mskcnt; cri++) \
122: dst[cri] = (b1[cri] & b2[cri]) }
123: #define ORBITS(dst, b1, b2) \
124: { int cri; \
125: for (cri=0; cri<mskcnt; cri++) \
126: dst[cri] = (b1[cri] | b2[cri]) }
127: #define UNSETBITS(dst, b1) \
128: { int cri; \
129: for (cri=0; cri<mskcnt; cri++) \
130: dst[cri] &= ~b1[cri]; }
131: /*
132: * If mskcnt>4, then ANYSET is a routine defined in WaitFor.c.
133: *
134: * #define ANYSET(src) (src[0] || src[1] || src[2] || src[3] || src[4] ...)
135: */
136: #endif
137:
138: typedef struct _connectionInput {
139: int used; /* is this client connected */
140: char *buffer; /* contains current client input */
141: char *bufptr; /* pointer to current start of data */
142: int bufcnt; /* count of bytes in buffer */
143: int lenLastReq;
144: int size;
145: } ConnectionInput;
146:
147: typedef struct _osComm {
148: int fd;
149: unsigned char *buf;
150: int bufsize;
151: int count;
152: } OsCommRec, *OsCommPtr;
153:
154: void Notice();
155:
156: #ifdef ISOCONN
157: #ifdef ISODEBUG
158: extern int isodexbug;
159: #endif /* ISODEBUG */
160: /*
161: * For want of a better place to put these for the moment...
162: *
163: * Should really appear in system headers eventuallement
164: */
165:
166: #define FamilyIso 3
167:
168:
169: #define UNIX_IO 0
170: #define ISODE_IO 1
171:
172: /*
173: * The following could all be optimised by putting it in the
174: * OsCommRec
175: * so we would not have to double array index for every IO...
176: *
177: * but i'm not sure that that rec is available in all IO call places
178: */
179: extern int fd2family[];
180:
181: extern int (*acceptfn[])();
182: extern int (*getpeerfn[])();
183: extern int (*readfn[])();
184: extern int (*writefn[])();
185: extern int (*readvfn[])();
186: extern int (*writevfn[])();
187: extern int (*closefn[])();
188:
189:
190: #define SAccept(fd, a, b) \
191: acceptfn[fd2family[fd]]((fd), (a), (b))
192:
193: #define SGetPeerName(fd, ptr, len) \
194: getpeerfn[fd2family[(fd)]]((fd), (ptr), (len))
195:
196: #define SRead(fd, data, size, dum) \
197: readfn[fd2family[(fd)]]((fd), (data), (size), (dum))
198:
199: #define SWrite(fd, data, size) \
200: writefn[fd2family[(fd)]]((fd), (data), (size))
201:
202: #define SWritev(fd, iov, iovcnt) \
203: writevfn[fd2family[(fd)]]((fd), (iov), (iovcnt))
204:
205: #define SClose(fd) \
206: closefn[fd2family[(fd)]]((fd))
207:
208: #endif /* ISOCONN */
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