2 * Copyright (c) 1998-2000, Index Data.
3 * See the file LICENSE for details.
5 * $Log: yaz-pdu-assoc.cpp,v $
6 * Revision 1.20 2000-11-20 11:27:33 adam
7 * Fixes for connect operation (timeout and notify fix).
9 * Revision 1.19 2000/11/01 14:22:59 adam
10 * Added fd parameter for method IYaz_PDU_Observer::clone.
12 * Revision 1.18 2000/10/24 12:29:57 adam
13 * Fixed bug in proxy where a Yaz_ProxyClient could be owned by
14 * two Yaz_Proxy's (fatal).
16 * Revision 1.17 2000/10/11 11:58:16 adam
17 * Moved header files to include/yaz++. Switched to libtool and automake.
18 * Configure script creates yaz++-config script.
20 * Revision 1.16 2000/09/22 09:54:11 heikki
23 * Revision 1.15 2000/09/21 21:43:20 adam
24 * Better high-level server API.
26 * Revision 1.14 2000/09/12 12:09:53 adam
27 * More work on high-level server.
29 * Revision 1.13 2000/09/08 10:23:42 adam
30 * Added skeleton of yaz-z-server.
32 * Revision 1.12 2000/09/06 14:23:45 adam
35 * Revision 1.11 2000/09/04 08:29:22 adam
36 * Fixed memory leak(s). Added re-use of associations, rather than
37 * re-init, when maximum number of targets are in use.
39 * Revision 1.10 2000/08/10 08:42:42 adam
40 * Fixes for {set,get}_APDU_log.
42 * Revision 1.9 1999/12/06 13:52:45 adam
43 * Modified for new location of YAZ header files. Experimental threaded
46 * Revision 1.8 1999/04/28 13:04:03 adam
47 * Fixed setting of proxy otherInfo so that database(s) are removed.
49 * Revision 1.7 1999/04/21 12:09:01 adam
50 * Many improvements. Modified to proxy server to work with "sessions"
53 * Revision 1.6 1999/04/20 10:30:05 adam
54 * Implemented various stuff for client and proxy. Updated calls
55 * to ODR to reflect new name parameter.
57 * Revision 1.5 1999/04/09 11:46:57 adam
58 * Added object Yaz_Z_Assoc. Much more functional client.
60 * Revision 1.4 1999/03/23 14:17:57 adam
61 * More work on timeout handling. Work on yaz-client.
63 * Revision 1.3 1999/02/02 14:01:20 adam
64 * First WIN32 port of YAZ++.
66 * Revision 1.2 1999/01/28 13:08:44 adam
67 * Yaz_PDU_Assoc better encapsulated. Memory leak fix in
68 * yaz-socket-manager.cc.
70 * Revision 1.1.1.1 1999/01/28 09:41:07 adam
71 * First implementation of YAZ++.
77 #include <yaz++/yaz-pdu-assoc.h>
80 #include <yaz/tcpip.h>
82 Yaz_PDU_Assoc::Yaz_PDU_Assoc(IYazSocketObservable *socketObservable)
86 m_socketObservable = socketObservable;
99 IYaz_PDU_Observable *Yaz_PDU_Assoc::clone()
101 Yaz_PDU_Assoc *copy = new Yaz_PDU_Assoc(m_socketObservable);
105 void Yaz_PDU_Assoc::socketNotify(int event)
107 logf (m_log, "Yaz_PDU_Assoc::socketNotify p=%p event = %d", this, event);
111 if (event & YAZ_SOCKET_OBSERVE_READ)
114 m_PDU_Observer->failNotify();
116 else if (event & YAZ_SOCKET_OBSERVE_TIMEOUT)
118 m_PDU_Observer->timeoutNotify();
123 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
124 YAZ_SOCKET_OBSERVE_EXCEPT);
125 m_PDU_Observer->connectNotify();
130 if (event & YAZ_SOCKET_OBSERVE_READ)
135 if ((res = cs_listen(m_cs, 0, 0)) == 1)
139 logf(LOG_FATAL|LOG_ERRNO, "cs_listen failed");
142 if (!(new_line = cs_accept(m_cs)))
144 /* 1. create socket-manager
146 3. create top-level object
147 setup observer for child fileid in pdu-assoc
150 int fd = cs_fileno(new_line);
151 logf (m_log, "accept ok fd = %d", fd);
152 cs_fileno(new_line) = -1;
158 if (event & YAZ_SOCKET_OBSERVE_WRITE)
162 if (event & YAZ_SOCKET_OBSERVE_READ)
166 int res = cs_get (m_cs, &m_input_buf, &m_input_len);
171 logf (m_log, "Connection closed by peer");
173 m_PDU_Observer->failNotify(); // problem here..
176 // lock it, so we know if recv_PDU deletes it.
178 m_destroyed = &destroyed;
180 m_PDU_Observer->recv_PDU(m_input_buf, res);
182 if (destroyed) // it really was destroyed, return now.
184 } while (m_cs && cs_more (m_cs));
186 if (event & YAZ_SOCKET_OBSERVE_TIMEOUT)
188 m_PDU_Observer->timeoutNotify();
192 logf (m_log, "CLOSING state=%d event was %d", m_state, event);
194 m_PDU_Observer->failNotify();
197 logf (m_log, "Unknown state=%d event was %d", m_state, event);
199 m_PDU_Observer->failNotify();
203 void Yaz_PDU_Assoc::close()
205 m_socketObservable->deleteObserver(this);
209 logf (m_log, "Yaz_PDU_Assoc::close fd=%d", cs_fileno(m_cs));
215 PDU_Queue *q_this = m_queue_out;
216 m_queue_out = m_queue_out->m_next;
224 void Yaz_PDU_Assoc::destroy()
231 // delete from parent's child list (if any)
234 c = &m_parent->m_children;
242 // delete all children ...
246 Yaz_PDU_Assoc *here = *c;
253 Yaz_PDU_Assoc::PDU_Queue::PDU_Queue(const char *buf, int len)
255 m_buf = (char *) malloc (len);
256 memcpy (m_buf, buf, len);
261 Yaz_PDU_Assoc::PDU_Queue::~PDU_Queue()
266 int Yaz_PDU_Assoc::flush_PDU()
270 logf (m_log, "Yaz_PDU_Assoc::flush_PDU");
271 if (m_state != Ready)
273 logf (m_log, "YAZ_PDU_Assoc::flush_PDU, not ready");
276 PDU_Queue *q = m_queue_out;
279 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
280 YAZ_SOCKET_OBSERVE_EXCEPT);
283 r = cs_put (m_cs, q->m_buf, q->m_len);
287 m_PDU_Observer->failNotify();
292 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
293 YAZ_SOCKET_OBSERVE_EXCEPT|
294 YAZ_SOCKET_OBSERVE_WRITE);
295 logf (m_log, "Yaz_PDU_Assoc::flush_PDU put %d bytes (incomplete)",
299 logf (m_log, "Yaz_PDU_Assoc::flush_PDU put %d bytes", q->m_len);
300 // whole packet sent... delete this and proceed to next ...
301 m_queue_out = q->m_next;
303 // don't select on write if queue is empty ...
305 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
306 YAZ_SOCKET_OBSERVE_EXCEPT);
310 int Yaz_PDU_Assoc::send_PDU(const char *buf, int len)
312 logf (m_log, "Yaz_PDU_Assoc::send_PDU");
313 PDU_Queue **pq = &m_queue_out;
314 int is_idle = (*pq ? 0 : 1);
318 logf (m_log, "Yaz_PDU_Assoc::send_PDU failed, m_cs == 0");
323 *pq = new PDU_Queue(buf, len);
327 logf (m_log, "Yaz_PDU_Assoc::cannot send_PDU fd=%d",
332 COMSTACK Yaz_PDU_Assoc::comstack()
336 CS_TYPE cs_type = tcpip_type;
337 m_cs = cs_create (cs_type, 0, PROTO_Z3950);
342 void Yaz_PDU_Assoc::listen(IYaz_PDU_Observer *observer,
347 COMSTACK cs = comstack();
349 logf (m_log, "Yaz_PDU_Assoc::listen %s", addr);
350 m_PDU_Observer = observer;
353 ap = cs_straddr (cs, addr);
356 if (cs_bind(cs, ap, CS_SERVER) < 0)
358 m_socketObservable->addObserver(cs_fileno(cs), this);
359 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
360 YAZ_SOCKET_OBSERVE_EXCEPT);
361 logf (m_log, "Yaz_PDU_Assoc::listen ok fd=%d", cs_fileno(cs));
365 void Yaz_PDU_Assoc::idleTime(int idleTime)
367 m_idleTime = idleTime;
368 logf (m_log, "Yaz_PDU_Assoc::idleTime(%d)", idleTime);
369 m_socketObservable->timeoutObserver(this, m_idleTime);
372 void Yaz_PDU_Assoc::connect(IYaz_PDU_Observer *observer,
375 logf (m_log, "Yaz_PDU_Assoc::connect %s", addr);
377 m_PDU_Observer = observer;
378 COMSTACK cs = comstack();
379 void *ap = cs_straddr (cs, addr);
382 logf (m_log, "cs_straddr failed");
385 int res = cs_connect (cs, ap);
386 logf (m_log, "Yaz_PDU_Assoc::connect fd=%d res=%d", cs_fileno(cs), res);
387 m_socketObservable->addObserver(cs_fileno(cs), this);
388 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
389 YAZ_SOCKET_OBSERVE_EXCEPT|
390 YAZ_SOCKET_OBSERVE_WRITE);
392 m_state = Connecting;
393 // if res < 0, then cs_connect failed immediately. state is Closed..
396 void Yaz_PDU_Assoc::socket(IYaz_PDU_Observer *observer, int fd)
399 m_PDU_Observer = observer;
402 CS_TYPE cs_type = tcpip_type;
403 m_cs = cs_createbysocket(fd, cs_type, 0, PROTO_Z3950);
405 m_socketObservable->addObserver(fd, this);
406 m_socketObservable->maskObserver(this,
407 YAZ_SOCKET_OBSERVE_READ|
408 YAZ_SOCKET_OBSERVE_EXCEPT);
409 m_socketObservable->timeoutObserver(this, m_idleTime);
414 // 1 = single-threaded
415 // 0 = multi-threaded
417 // Single-threaded... Only useful for non-blocking handlers
418 void Yaz_PDU_Assoc::childNotify(int fd)
420 // Clone PDU Observable (keep socket manager)
421 IYaz_PDU_Observable *new_observable = clone();
423 // Clone PDU Observer
424 IYaz_PDU_Observer *observer = m_PDU_Observer->clone(new_observable, fd);
426 // Attach new socket to it
427 new_observable->socket(observer, fd);
431 #include <yaz++/yaz-socket-manager.h>
446 Yaz_SocketManager *s = (Yaz_SocketManager *) p;
448 logf (LOG_LOG, "thread started");
449 while (s->processEvent() > 0)
451 logf (LOG_LOG, "thread finished");
458 void Yaz_PDU_Assoc::childNotify(int fd)
460 Yaz_SocketManager *socket_observable = new Yaz_SocketManager;
461 Yaz_PDU_Assoc *new_observable = new Yaz_PDU_Assoc (socket_observable);
463 /// Clone PDU Observer
464 IYaz_PDU_Observer *observer = m_PDU_Observer->clone(new_observable, fd);
466 /// Attach new socket to it
467 new_observable->socket(observer, fd);
471 t_id = _beginthread (events, 0, socket_observable);
474 logf (LOG_FATAL|LOG_ERRNO, "_beginthread failed");
480 int id = pthread_create (&type, 0, events, socket_observable);
481 logf (LOG_LOG, "pthread_create returned id=%d", id);