2 * Copyright (c) 1995, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.23 1997-09-01 08:52:59 adam
8 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
9 * moved a separate directory. MSV5.0 project server.dsp created.
10 * As an option, the server can now operate as an NT service.
12 * Revision 1.22 1996/07/06 19:58:35 quinn
13 * System headerfiles gathered in yconfig
15 * Revision 1.21 1996/02/21 12:55:51 quinn
18 * Revision 1.20 1996/02/21 12:52:55 quinn
21 * Revision 1.19 1995/12/05 11:17:30 quinn
22 * Moved some paranthesises around. Sigh.
24 * Revision 1.18 1995/11/13 09:27:41 quinn
25 * Fiddling with the variant stuff.
27 * Revision 1.17 1995/11/07 12:37:44 quinn
28 * Added support for forcing TIMEOUT event.
30 * Revision 1.16 1995/11/01 13:54:56 quinn
33 * Revision 1.15 1995/09/15 14:44:15 quinn
34 * *** empty log message ***
36 * Revision 1.14 1995/08/29 14:44:50 quinn
39 * Revision 1.13 1995/08/29 11:17:56 quinn
40 * Added code to receive close
42 * Revision 1.12 1995/08/29 10:41:18 quinn
45 * Revision 1.11 1995/06/19 12:39:09 quinn
46 * Fixed bug in timeout code. Added BER dumper.
48 * Revision 1.10 1995/06/16 10:31:33 quinn
49 * Added session timeout.
51 * Revision 1.9 1995/06/05 10:53:31 quinn
52 * Added a better SCAN.
54 * Revision 1.8 1995/05/16 08:51:01 quinn
55 * License, documentation, and memory fixes
57 * Revision 1.7 1995/03/27 15:02:01 quinn
58 * Added some includes for better portability
60 * Revision 1.6 1995/03/27 08:34:21 quinn
61 * Added dynamic server functionality.
62 * Released bindings to session.c (is now redundant)
64 * Revision 1.5 1995/03/15 08:37:41 quinn
65 * Now we're pretty much set for nonblocking I/O.
67 * Revision 1.4 1995/03/14 16:59:48 quinn
70 * Revision 1.3 1995/03/14 11:30:14 quinn
73 * Revision 1.2 1995/03/14 10:27:59 quinn
74 * More work on demo server.
76 * Revision 1.1 1995/03/10 18:22:44 quinn
77 * The rudiments of an asynchronous server.
102 static IOCHAN iochans = 0;
104 IOCHAN iochan_getchan(void)
111 IOCHAN iochan_create(int fd, IOC_CALLBACK cb, int flags)
115 if (!(new_iochan = xmalloc(sizeof(*new_iochan))))
117 new_iochan->destroyed = 0;
119 new_iochan->flags = flags;
120 new_iochan->fun = cb;
121 new_iochan->force_event = 0;
122 new_iochan->last_event = new_iochan->max_idle = 0;
125 /* For windows we don't have a linklist of iochans */
126 new_iochan->next = NULL;
128 new_iochan->next = iochans;
129 iochans = new_iochan;
135 /* Event loop now takes an iochan as a parameter */
137 int __stdcall event_loop(IOCHAN iochans)
139 int event_loop(IOCHAN dummylistener)
142 do /* loop as long as there are active associations to process */
145 fd_set in, out, except;
147 static struct timeval nullto = {0, 0}, to;
148 struct timeval *timeout;
153 timeout = &to; /* hang on select */
157 for (p = iochans; p; p = p->next)
160 timeout = &nullto; /* polling select */
161 if (p->flags & EVENT_INPUT)
163 if (p->flags & EVENT_OUTPUT)
165 if (p->flags & EVENT_EXCEPT)
166 FD_SET(p->fd, &except);
170 if ((res = select(max + 1, &in, &out, &except, timeout)) < 0)
176 /* Destroy the first member in the chain, and try again */
177 association *assoc = iochan_getdata(iochans);
178 COMSTACK conn = assoc->client_link;
181 destroy_association(assoc);
182 iochan_destroy(iochans);
183 logf(LOG_DEBUG, "error while selecting, destroying iochan %p", iochans);
186 for (p = iochans; p; p = p->next)
188 int force_event = p->force_event;
189 time_t now = time(0);
192 if (!p->destroyed && (FD_ISSET(p->fd, &in) || force_event == EVENT_INPUT))
195 (*p->fun)(p, EVENT_INPUT);
197 if (!p->destroyed && (FD_ISSET(p->fd, &out) ||
198 force_event == EVENT_OUTPUT))
201 (*p->fun)(p, EVENT_OUTPUT);
203 if (!p->destroyed && (FD_ISSET(p->fd, &except) ||
204 force_event == EVENT_EXCEPT))
207 (*p->fun)(p, EVENT_EXCEPT);
209 if (!p->destroyed && ((p->max_idle && now - p->last_event >
210 p->max_idle) || force_event == EVENT_TIMEOUT))
213 (*p->fun)(p, EVENT_TIMEOUT);
216 for (p = iochans; p; p = nextp)
224 /* We need to inform the threadlist that this channel has been destroyed */
227 /* Now reset the pointers */
232 for (pr = iochans; pr; pr = pr->next)
235 assert(pr); /* grave error if it weren't there */