2 * Copyright (c) 1998-1999, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
6 * $Log: yaz-pdu-assoc.cpp,v $
7 * Revision 1.10 2000-08-10 08:42:42 adam
8 * Fixes for {set,get}_APDU_log.
10 * Revision 1.9 1999/12/06 13:52:45 adam
11 * Modified for new location of YAZ header files. Experimental threaded
14 * Revision 1.8 1999/04/28 13:04:03 adam
15 * Fixed setting of proxy otherInfo so that database(s) are removed.
17 * Revision 1.7 1999/04/21 12:09:01 adam
18 * Many improvements. Modified to proxy server to work with "sessions"
21 * Revision 1.6 1999/04/20 10:30:05 adam
22 * Implemented various stuff for client and proxy. Updated calls
23 * to ODR to reflect new name parameter.
25 * Revision 1.5 1999/04/09 11:46:57 adam
26 * Added object Yaz_Z_Assoc. Much more functional client.
28 * Revision 1.4 1999/03/23 14:17:57 adam
29 * More work on timeout handling. Work on yaz-client.
31 * Revision 1.3 1999/02/02 14:01:20 adam
32 * First WIN32 port of YAZ++.
34 * Revision 1.2 1999/01/28 13:08:44 adam
35 * Yaz_PDU_Assoc better encapsulated. Memory leak fix in
36 * yaz-socket-manager.cc.
38 * Revision 1.1.1.1 1999/01/28 09:41:07 adam
39 * First implementation of YAZ++.
45 #include <yaz-pdu-assoc.h>
48 #include <yaz/tcpip.h>
50 Yaz_PDU_Assoc::Yaz_PDU_Assoc(IYazSocketObservable *socketObservable)
54 m_socketObservable = socketObservable;
67 IYaz_PDU_Observable *Yaz_PDU_Assoc::clone()
69 Yaz_PDU_Assoc *copy = new Yaz_PDU_Assoc(m_socketObservable);
73 Yaz_PDU_Assoc::~Yaz_PDU_Assoc()
78 void Yaz_PDU_Assoc::socketNotify(int event)
80 logf (m_log, "Yaz_PDU_Assoc::socketNotify p=%p event = %d", this, event);
81 if (0 /* m_state == Connected */)
84 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
85 YAZ_SOCKET_OBSERVE_EXCEPT);
86 m_PDU_Observer->connectNotify();
89 else if (m_state == Connecting)
91 if (event & YAZ_SOCKET_OBSERVE_READ)
94 m_PDU_Observer->failNotify();
96 else if (event & YAZ_SOCKET_OBSERVE_TIMEOUT)
98 m_PDU_Observer->timeoutNotify();
103 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
104 YAZ_SOCKET_OBSERVE_EXCEPT);
105 m_PDU_Observer->connectNotify();
109 else if (m_state == Listen)
111 if (event & YAZ_SOCKET_OBSERVE_READ)
116 if ((res = cs_listen(m_cs, 0, 0)) == 1)
120 logf(LOG_FATAL, "cs_listen failed");
123 if (!(new_line = cs_accept(m_cs)))
126 /* 1. create socket-manager
128 3. create top-level object
129 setup observer for child fileid in pdu-assoc
132 int fd = cs_fileno(new_line);
133 cs_fileno(new_line) = -1;
134 cs_close (new_line); /* potential problem ... */
138 Yaz_PDU_Assoc *assoc = new Yaz_PDU_Assoc (m_socketObservable);
139 assoc->m_parent = this;
140 assoc->m_next = m_children;
143 assoc->m_PDU_Observer = m_PDU_Observer->clone(assoc);
148 else if (m_state == Ready)
150 if (event & YAZ_SOCKET_OBSERVE_WRITE)
154 if (event & YAZ_SOCKET_OBSERVE_READ)
158 int res = cs_get (m_cs, &m_input_buf, &m_input_len);
163 logf (m_log, "Connection closed by peer");
165 m_PDU_Observer->failNotify();
168 // lock it, so we know if recv_PDU deletes it.
170 m_destroyed = &destroyed;
172 m_PDU_Observer->recv_PDU(m_input_buf, res);
173 if (destroyed) // it really was destroyed, return now.
175 } while (m_cs && cs_more (m_cs));
177 if (event & YAZ_SOCKET_OBSERVE_TIMEOUT)
179 m_PDU_Observer->timeoutNotify();
184 void Yaz_PDU_Assoc::close()
186 m_socketObservable->deleteObserver(this);
190 logf (m_log, "Yaz_PDU_Assoc::close fd=%d", cs_fileno(m_cs));
196 PDU_Queue *q_this = m_queue_out;
197 m_queue_out = m_queue_out->m_next;
200 // free (m_input_buf);
205 void Yaz_PDU_Assoc::destroy()
212 // delete from parent's child list (if any)
215 c = &m_parent->m_children;
223 // delete all children ...
227 Yaz_PDU_Assoc *here = *c;
234 Yaz_PDU_Assoc::PDU_Queue::PDU_Queue(const char *buf, int len)
236 m_buf = (char *) malloc (len);
237 memcpy (m_buf, buf, len);
242 Yaz_PDU_Assoc::PDU_Queue::~PDU_Queue()
247 int Yaz_PDU_Assoc::flush_PDU()
251 logf (m_log, "Yaz_PDU_Assoc::flush_PDU");
252 if (m_state != Ready)
254 logf (m_log, "YAZ_PDU_Assoc::flush_PDU, not ready");
257 PDU_Queue *q = m_queue_out;
260 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
261 YAZ_SOCKET_OBSERVE_EXCEPT);
264 r = cs_put (m_cs, q->m_buf, q->m_len);
268 m_PDU_Observer->failNotify();
273 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
274 YAZ_SOCKET_OBSERVE_EXCEPT|
275 YAZ_SOCKET_OBSERVE_WRITE);
276 logf (m_log, "Yaz_PDU_Assoc::flush_PDU put %d bytes (incomplete)",
280 logf (m_log, "Yaz_PDU_Assoc::flush_PDU put %d bytes", q->m_len);
281 // whole packet sent... delete this and proceed to next ...
282 m_queue_out = q->m_next;
284 // don't select on write if queue is empty ...
286 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
287 YAZ_SOCKET_OBSERVE_EXCEPT);
291 int Yaz_PDU_Assoc::send_PDU(const char *buf, int len)
293 logf (m_log, "Yaz_PDU_Assoc::send_PDU");
294 PDU_Queue **pq = &m_queue_out;
295 int is_idle = (*pq ? 0 : 1);
299 logf (m_log, "Yaz_PDU_Assoc::send_PDU failed, m_cs == 0");
304 *pq = new PDU_Queue(buf, len);
308 logf (m_log, "Yaz_PDU_Assoc::cannot send_PDU fd=%d",
313 COMSTACK Yaz_PDU_Assoc::comstack()
317 CS_TYPE cs_type = tcpip_type;
318 m_cs = cs_create (cs_type, 0, PROTO_Z3950);
323 void Yaz_PDU_Assoc::listen(IYaz_PDU_Observer *observer,
328 COMSTACK cs = comstack();
330 logf (m_log, "Yaz_PDU_Assoc::listen %s", addr);
331 m_PDU_Observer = observer;
334 ap = cs_straddr (cs, addr);
337 if (cs_bind(cs, ap, CS_SERVER) < 0)
339 m_socketObservable->addObserver(cs_fileno(cs), this);
340 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
341 YAZ_SOCKET_OBSERVE_EXCEPT);
345 void Yaz_PDU_Assoc::idleTime(int idleTime)
347 m_idleTime = idleTime;
348 logf (m_log, "Yaz_PDU_Assoc::idleTime(%d)", idleTime);
349 m_socketObservable->timeoutObserver(this, m_idleTime);
352 void Yaz_PDU_Assoc::connect(IYaz_PDU_Observer *observer,
355 logf (m_log, "Yaz_PDU_Assoc::connect %s", addr);
357 m_PDU_Observer = observer;
358 COMSTACK cs = comstack();
359 void *ap = cs_straddr (cs, addr);
362 logf (m_log, "cs_straddr failed");
365 int res = cs_connect (cs, ap);
366 logf (m_log, "Yaz_PDU_Assoc::connect fd=%d res=%d", cs_fileno(cs), res);
367 m_socketObservable->addObserver(cs_fileno(cs), this);
368 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
369 YAZ_SOCKET_OBSERVE_EXCEPT|
370 YAZ_SOCKET_OBSERVE_WRITE);
371 m_state = Connecting;
374 void Yaz_PDU_Assoc::socket(IYaz_PDU_Observer *observer, int fd)
377 m_PDU_Observer = observer;
380 CS_TYPE cs_type = tcpip_type;
381 m_cs = cs_createbysocket(fd, cs_type, 0, PROTO_Z3950);
383 m_socketObservable->addObserver(fd, this);
384 m_socketObservable->maskObserver(this,
385 YAZ_SOCKET_OBSERVE_READ|
386 YAZ_SOCKET_OBSERVE_EXCEPT);
387 m_socketObservable->timeoutObserver(this, m_idleTime);
392 void Yaz_PDU_Assoc::childNotify(int fd)
394 /// Clone PDU Observable (keep socket manager)
395 IYaz_PDU_Observable *new_observable = clone();
397 /// Clone PDU Observer
398 IYaz_PDU_Observer *observer = m_PDU_Observer->clone(new_observable);
400 /// Attach new socket to it
401 new_observable->socket(observer, fd);
405 #include <yaz-socket-manager.h>
409 Yaz_SocketManager *socketManager;
410 IYaz_PDU_Observable *
414 static void *events(void *p)
416 Yaz_SocketManager *s = (Yaz_SocketManager *) p;
418 while (s->processEvent() > 0)
423 void Yaz_PDU_Assoc::childNotify(int fd)
425 Yaz_SocketManager *socket_observable = new Yaz_SocketManager;
426 IYaz_PDU_Observable *new_observable = clone();
428 m_socketObservable = socket_observable;
430 /// Clone PDU Observer
431 IYaz_PDU_Observer *observer = m_PDU_Observer->clone(new_observable);
433 /// Attach new socket to it
434 new_observable->socket(observer, fd);
438 int id = pthread_create (&type, 0, events, socket_observable);
439 logf (LOG_LOG, "pthread_create returned id=%d", id);