fslibos.h revision 6a46240f 
1/*
2 * Copyright 1990 Network Computing Devices;
3 * Portions Copyright 1987 by Digital Equipment Corporation
4 */
5
6/*
7
8Copyright 1987, 1994, 1998  The Open Group
9
10Permission to use, copy, modify, distribute, and sell this software and its
11documentation for any purpose is hereby granted without fee, provided that
12the above copyright notice appear in all copies and that both that
13copyright notice and this permission notice appear in supporting
14documentation.
15
16The above copyright notice and this permission notice shall be included
17in all copies or substantial portions of the Software.
18
19THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
23OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25OTHER DEALINGS IN THE SOFTWARE.
26
27Except as contained in this notice, the name of The Open Group shall
28not be used in advertising or otherwise to promote the sale, use or
29other dealings in this Software without prior written authorization
30from The Open Group.
31
32*/
33
34/*
35 * FSlib networking & os include file
36 */
37
38#include <X11/Xtrans/Xtrans.h>
39
40#ifndef WIN32
41
42/*
43 * makedepend screws up on #undef OPEN_MAX, so we define a new symbol
44 */
45
46# ifndef FONT_OPEN_MAX
47
48#  ifdef _POSIX_SOURCE
49#   include <limits.h>
50#  else
51#   define _POSIX_SOURCE
52#   include <limits.h>
53#   undef _POSIX_SOURCE
54#  endif
55#  ifndef SIZE_MAX
56#   ifdef ULONG_MAX
57#    define SIZE_MAX ULONG_MAX
58#   else
59#    define SIZE_MAX UINT_MAX
60#   endif
61#  endif
62#  ifndef OPEN_MAX
63#   if defined(SVR4)
64#    define OPEN_MAX 256
65#   else
66#    include <sys/param.h>
67#    ifndef OPEN_MAX
68#     ifdef NOFILE
69#      define OPEN_MAX NOFILE
70#     else
71#      define OPEN_MAX NOFILES_MAX
72#     endif
73#    endif
74#   endif
75#  endif
76
77#  if OPEN_MAX > 256
78#   define FONT_OPEN_MAX 256
79#  else
80#   define FONT_OPEN_MAX OPEN_MAX
81#  endif
82
83# endif /* FONT_OPEN_MAX */
84
85# ifdef WORD64
86#  define NMSKBITS 64
87# else
88#  define NMSKBITS 32
89# endif
90
91# define MSKCNT ((FONT_OPEN_MAX + NMSKBITS - 1) / NMSKBITS)
92
93typedef unsigned long FdSet[MSKCNT];
94typedef FdSet FdSetPtr;
95
96# if (MSKCNT==1)
97#  define BITMASK(i) (1 << (i))
98#  define MASKIDX(i) 0
99# endif
100
101# if (MSKCNT>1)
102#  define BITMASK(i) (1 << ((i) & (NMSKBITS - 1)))
103#  define MASKIDX(i) ((i) / NMSKBITS)
104# endif
105
106# define MASKWORD(buf, i) buf[MASKIDX(i)]
107# define BITSET(buf, i) MASKWORD(buf, i) |= BITMASK(i)
108# define BITCLEAR(buf, i) MASKWORD(buf, i) &= ~BITMASK(i)
109# define GETBIT(buf, i) (MASKWORD(buf, i) & BITMASK(i))
110
111# if (MSKCNT==1)
112#  define COPYBITS(src, dst) dst[0] = src[0]
113#  define CLEARBITS(buf) buf[0] = 0
114#  define MASKANDSETBITS(dst, b1, b2) dst[0] = (b1[0] & b2[0])
115#  define ORBITS(dst, b1, b2) dst[0] = (b1[0] | b2[0])
116#  define UNSETBITS(dst, b1) (dst[0] &= ~b1[0])
117#  define ANYSET(src) (src[0])
118# endif
119
120# if (MSKCNT==2)
121#  define COPYBITS(src, dst) { dst[0] = src[0]; dst[1] = src[1]; }
122#  define CLEARBITS(buf) { buf[0] = 0; buf[1] = 0; }
123#  define MASKANDSETBITS(dst, b1, b2)  {\
124		      dst[0] = (b1[0] & b2[0]);\
125		      dst[1] = (b1[1] & b2[1]); }
126#  define ORBITS(dst, b1, b2)  {\
127		      dst[0] = (b1[0] | b2[0]);\
128		      dst[1] = (b1[1] | b2[1]); }
129#  define UNSETBITS(dst, b1) {\
130                      dst[0] &= ~b1[0]; \
131                      dst[1] &= ~b1[1]; }
132#  define ANYSET(src) (src[0] || src[1])
133# endif
134
135# if (MSKCNT==3)
136#  define COPYBITS(src, dst) { dst[0] = src[0]; dst[1] = src[1]; \
137			     dst[2] = src[2]; }
138#  define CLEARBITS(buf) { buf[0] = 0; buf[1] = 0; buf[2] = 0; }
139#  define MASKANDSETBITS(dst, b1, b2)  {\
140		      dst[0] = (b1[0] & b2[0]);\
141		      dst[1] = (b1[1] & b2[1]);\
142		      dst[2] = (b1[2] & b2[2]); }
143#  define ORBITS(dst, b1, b2)  {\
144		      dst[0] = (b1[0] | b2[0]);\
145		      dst[1] = (b1[1] | b2[1]);\
146		      dst[2] = (b1[2] | b2[2]); }
147#  define UNSETBITS(dst, b1) {\
148                      dst[0] &= ~b1[0]; \
149                      dst[1] &= ~b1[1]; \
150                      dst[2] &= ~b1[2]; }
151#  define ANYSET(src) (src[0] || src[1] || src[2])
152# endif
153
154# if (MSKCNT==4)
155#  define COPYBITS(src, dst) dst[0] = src[0]; dst[1] = src[1]; \
156			   dst[2] = src[2]; dst[3] = src[3]
157#  define CLEARBITS(buf) buf[0] = 0; buf[1] = 0; buf[2] = 0; buf[3] = 0
158#  define MASKANDSETBITS(dst, b1, b2)  \
159                      dst[0] = (b1[0] & b2[0]);\
160                      dst[1] = (b1[1] & b2[1]);\
161                      dst[2] = (b1[2] & b2[2]);\
162                      dst[3] = (b1[3] & b2[3])
163#  define ORBITS(dst, b1, b2)  \
164                      dst[0] = (b1[0] | b2[0]);\
165                      dst[1] = (b1[1] | b2[1]);\
166                      dst[2] = (b1[2] | b2[2]);\
167                      dst[3] = (b1[3] | b2[3])
168#  define UNSETBITS(dst, b1) \
169                      dst[0] &= ~b1[0]; \
170                      dst[1] &= ~b1[1]; \
171                      dst[2] &= ~b1[2]; \
172                      dst[3] &= ~b1[3]
173#  define ANYSET(src) (src[0] || src[1] || src[2] || src[3])
174# endif
175
176# if (MSKCNT>4)
177#  define COPYBITS(src, dst) memmove((caddr_t) dst, (caddr_t) src,\
178				   MSKCNT*sizeof(long))
179#  define CLEARBITS(buf) bzero((caddr_t) buf, MSKCNT*sizeof(long))
180#  define MASKANDSETBITS(dst, b1, b2)  \
181		      { int cri;			\
182			for (cri=MSKCNT; --cri>=0; )	\
183		          dst[cri] = (b1[cri] & b2[cri]); }
184#  define ORBITS(dst, b1, b2)  \
185		      { int cri;			\
186		      for (cri=MSKCNT; --cri>=0; )	\
187		          dst[cri] = (b1[cri] | b2[cri]); }
188#  define UNSETBITS(dst, b1) \
189		      { int cri;			\
190		      for (cri=MSKCNT; --cri>=0; )	\
191		          dst[cri] &= ~b1[cri];  }
192#  if (MSKCNT==8)
193#   define ANYSET(src) (src[0] || src[1] || src[2] || src[3] || \
194		     src[4] || src[5] || src[6] || src[7])
195#  endif
196# endif
197
198#else /* not WIN32 */
199
200# include <X11/Xwinsock.h>
201# include <X11/Xw32defs.h>
202
203typedef fd_set FdSet;
204typedef FdSet *FdSetPtr;
205
206# define CLEARBITS(set) FD_ZERO(&set)
207# define BITSET(set,s) FD_SET(s,&set)
208# define BITCLEAR(set,s) FD_CLR(s,&set)
209# define GETBIT(set,s) FD_ISSET(s,&set)
210# define ANYSET(set) set->fd_count
211
212#endif
213