2 * Copyright (C) 1994, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.6 1995-03-27 08:34:21 quinn
8 * Added dynamic server functionality.
9 * Released bindings to session.c (is now redundant)
11 * Revision 1.5 1995/03/15 08:37:41 quinn
12 * Now we're pretty much set for nonblocking I/O.
14 * Revision 1.4 1995/03/14 16:59:48 quinn
17 * Revision 1.3 1995/03/14 11:30:14 quinn
20 * Revision 1.2 1995/03/14 10:27:59 quinn
21 * More work on demo server.
23 * Revision 1.1 1995/03/10 18:22:44 quinn
24 * The rudiments of an asynchronous server.
30 #include <sys/types.h>
38 static IOCHAN iochans = 0;
40 IOCHAN iochan_getchan(void)
45 IOCHAN iochan_create(int fd, IOC_CALLBACK cb, int flags)
49 if (!(new = malloc(sizeof(*new))))
66 fd_set in, out, except;
68 static struct timeval nullto = {0, 0};
69 struct timeval *timeout;
74 timeout = 0; /* hang on select */
76 for (p = iochans; p; p = p->next)
80 if (p->flags & EVENT_INPUT)
82 if (p->flags & EVENT_OUTPUT)
84 if (p->flags & EVENT_EXCEPT)
85 FD_SET(p->fd, &except);
89 if ((res = select(max + 1, &in, &out, &except, timeout)) < 0)
95 for (p = iochans; p; p = p->next)
97 int force_event = p->force_event;
100 if (FD_ISSET(p->fd, &in) || force_event == EVENT_INPUT)
101 (*p->fun)(p, EVENT_INPUT);
102 if (!p->destroyed && (FD_ISSET(p->fd, &out) ||
103 force_event == EVENT_OUTPUT))
104 (*p->fun)(p, EVENT_OUTPUT);
105 if (!p->destroyed && (FD_ISSET(p->fd, &except) ||
106 force_event == EVENT_EXCEPT))
107 (*p->fun)(p, EVENT_EXCEPT);
109 for (p = iochans; p; p = nextp)
121 for (pr = iochans; pr; pr = pr->next)