1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/* VMS Stuff
Copyright (C) 1992, 1993, 1994 Stanley T. Shebs.
Xconq is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version. See the file COPYING. */
/* fd_set for select. */
/* Number of descriptors that can fit in an `fd_set'. */
#define __FD_SETSIZE 256
/* It's easier to assume 8-bit bytes than to get CHAR_BIT. */
#define __NFDBITS (sizeof(unsigned long int) * 8)
#define __FDELT(d) ((d) / __NFDBITS)
#define __FDMASK(d) (1 << ((d) % __NFDBITS))
#define __ptr_t char *
typedef struct
{
unsigned long int __bits[(__FD_SETSIZE + (__NFDBITS - 1)) / __NFDBITS];
} __fd_set;
/* This line MUST be split! Otherwise m4 will not change it. */
#define __FD_ZERO(set) \
((void) memset((__ptr_t) (set), 0, sizeof(fd_set)))
#define __FD_SET(d, set) ((set)->__bits[__FDELT(d)] |= __FDMASK(d))
#define __FD_CLR(d, set) ((set)->__bits[__FDELT(d)] &= ~__FDMASK(d))
#define __FD_ISSET(d, set) ((set)->__bits[__FDELT(d)] & __FDMASK(d))
#define FD_SETSIZE __FD_SETSIZE
#define fd_set __fd_set
#define FD_ZERO(set) __FD_ZERO(set)
#define FD_SET(d, set) __FD_SET((d), (set))
#define FD_CLR(d, set) __FD_CLR((d), (set))
#define FD_ISSET(d, set)__FD_ISSET((d), (set))
|
