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
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*
* jabberd - Jabber Open Source Server
* Copyright (c) 2002 Jeremie Miller, Thomas Muldowney,
* Ryan Eatmon, Robert Norris
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA02111-1307USA
*/
/* MIO backend for select() */
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
#endif
#define MIO_FUNCS \
static void _mio_fds_init(mio_priv_t m) \
{ \
int fd; \
for(fd = 0; fd < m->maxfd; fd++) \
{ \
m->fds[fd].mio_fd.fd = fd; \
} \
m->highfd = 0; \
m->lowfd = m->maxfd; \
} \
\
static mio_fd_t _mio_alloc_fd(mio_priv_t m, int fd) \
{ \
if(fd > m->highfd) m->highfd = fd; \
if(fd < m->lowfd) m->lowfd = fd; \
return &m->fds[fd].mio_fd; \
} \
\
static int _mio_select(mio_priv_t m, int t) \
{ \
struct timeval tv; \
\
m->rfds_out = m->rfds_in; \
m->wfds_out = m->wfds_in; \
\
tv.tv_sec = t; \
tv.tv_usec = 0; \
return select(m->highfd + 1, &m->rfds_out, &m->wfds_out, NULL, &tv); \
}
#define MIO_FD_VARS
#define MIO_VARS \
struct mio_priv_fd_st *fds; \
int lowfd; \
int highfd; \
fd_set rfds_in, wfds_in, rfds_out, wfds_out;
#define MIO_INIT_VARS(m) \
do { \
if (maxfd > FD_SETSIZE) \
{ \
mio_debug(ZONE,"wanted MIO larger than %d file descriptors", FD_SETSIZE); \
free(m); \
return NULL; \
} \
\
if((MIO(m)->fds = calloc(1, sizeof(struct mio_priv_fd_st) * maxfd)) == NULL) \
{ \
mio_debug(ZONE,"internal error creating new mio"); \
free(m); \
return NULL; \
} \
\
_mio_fds_init(MIO(m)); \
FD_ZERO(&MIO(m)->rfds_in); \
FD_ZERO(&MIO(m)->wfds_in); \
} while(0)
#define MIO_FREE_VARS(m) free(MIO(m)->fds)
#define MIO_ALLOC_FD(m, rfd) _mio_alloc_fd(MIO(m), rfd)
#define MIO_FREE_FD(m, mfd)
#define MIO_REMOVE_FD(m, mfd) \
do { \
FD_CLR(mfd->mio_fd.fd, &MIO(m)->rfds_in); \
FD_CLR(mfd->mio_fd.fd, &MIO(m)->wfds_in); \
} while(0)
#define MIO_CHECK(m, t) _mio_select(MIO(m), t)
#define MIO_SET_READ(m, mfd) FD_SET(mfd->mio_fd.fd, &MIO(m)->rfds_in)
#define MIO_SET_WRITE(m, mfd) FD_SET(mfd->mio_fd.fd, &MIO(m)->wfds_in)
#define MIO_UNSET_READ(m, mfd) FD_CLR(mfd->mio_fd.fd, &MIO(m)->rfds_in)
#define MIO_UNSET_WRITE(m, mfd) FD_CLR(mfd->mio_fd.fd, &MIO(m)->wfds_in)
#define MIO_CAN_READ(m, iter) FD_ISSET(iter, &MIO(m)->rfds_out)
#define MIO_CAN_WRITE(m, iter) FD_ISSET(iter, &MIO(m)->wfds_out)
#define MIO_CAN_FREE(m) 1
#define MIO_INIT_ITERATOR(iter) \
int iter
#define MIO_ITERATE_RESULTS(m, retval, iter) \
for(iter = MIO(m)->lowfd; iter <= MIO(m)->highfd; iter++)
#define MIO_ITERATOR_FD(m, iter) \
(&MIO(m)->fds[iter].mio_fd)
|
