2 * Copyright (c) 1995, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.17 1995-11-07 12:37:44 quinn
8 * Added support for forcing TIMEOUT event.
10 * Revision 1.16 1995/11/01 13:54:56 quinn
13 * Revision 1.15 1995/09/15 14:44:15 quinn
14 * *** empty log message ***
16 * Revision 1.14 1995/08/29 14:44:50 quinn
19 * Revision 1.13 1995/08/29 11:17:56 quinn
20 * Added code to receive close
22 * Revision 1.12 1995/08/29 10:41:18 quinn
25 * Revision 1.11 1995/06/19 12:39:09 quinn
26 * Fixed bug in timeout code. Added BER dumper.
28 * Revision 1.10 1995/06/16 10:31:33 quinn
29 * Added session timeout.
31 * Revision 1.9 1995/06/05 10:53:31 quinn
32 * Added a better SCAN.
34 * Revision 1.8 1995/05/16 08:51:01 quinn
35 * License, documentation, and memory fixes
37 * Revision 1.7 1995/03/27 15:02:01 quinn
38 * Added some includes for better portability
40 * Revision 1.6 1995/03/27 08:34:21 quinn
41 * Added dynamic server functionality.
42 * Released bindings to session.c (is now redundant)
44 * Revision 1.5 1995/03/15 08:37:41 quinn
45 * Now we're pretty much set for nonblocking I/O.
47 * Revision 1.4 1995/03/14 16:59:48 quinn
50 * Revision 1.3 1995/03/14 11:30:14 quinn
53 * Revision 1.2 1995/03/14 10:27:59 quinn
54 * More work on demo server.
56 * Revision 1.1 1995/03/10 18:22:44 quinn
57 * The rudiments of an asynchronous server.
64 #include <sys/types.h>
70 #include <sys/select.h>
77 static IOCHAN iochans = 0;
79 IOCHAN iochan_getchan(void)
84 IOCHAN iochan_create(int fd, IOC_CALLBACK cb, int flags)
88 if (!(new = xmalloc(sizeof(*new))))
96 new->last_event = new->max_idle = 0;
106 fd_set in, out, except;
108 static struct timeval nullto = {0, 0}, to;
109 struct timeval *timeout;
114 timeout = &to; /* hang on select */
118 for (p = iochans; p; p = p->next)
121 timeout = &nullto; /* polling select */
122 if (p->flags & EVENT_INPUT)
124 if (p->flags & EVENT_OUTPUT)
126 if (p->flags & EVENT_EXCEPT)
127 FD_SET(p->fd, &except);
131 if ((res = select(max + 1, &in, &out, &except, timeout)) < 0)
137 for (p = iochans; p; p = p->next)
139 int force_event = p->force_event;
140 time_t now = time(0);
143 if (FD_ISSET(p->fd, &in) || force_event == EVENT_INPUT)
146 (*p->fun)(p, EVENT_INPUT);
148 if (!p->destroyed && (FD_ISSET(p->fd, &out) ||
149 force_event == EVENT_OUTPUT))
152 (*p->fun)(p, EVENT_OUTPUT);
154 if (!p->destroyed && (FD_ISSET(p->fd, &except) ||
155 force_event == EVENT_EXCEPT))
158 (*p->fun)(p, EVENT_EXCEPT);
160 if (!p->destroyed && (p->max_idle && now - p->last_event >
161 p->max_idle) || force_event == EVENT_TIMEOUT)
164 (*p->fun)(p, EVENT_TIMEOUT);
167 for (p = iochans; p; p = nextp)
179 for (pr = iochans; pr; pr = pr->next)
182 assert(pr); /* grave error if it weren't there */