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 1.1 1999-01-28 09:41:07 adam
14 #include <yaz-pdu-assoc.h>
19 Yaz_PDU_Assoc::Yaz_PDU_Assoc(IYazSocketObservable *socketObservable,
24 m_socketObservable = socketObservable;
34 IYaz_PDU_Observable *Yaz_PDU_Assoc::clone()
36 Yaz_PDU_Assoc *copy = new Yaz_PDU_Assoc(m_socketObservable, 0);
40 Yaz_PDU_Assoc::~Yaz_PDU_Assoc()
45 logf (LOG_LOG, "m_children=%p m_parent=%p", m_children,
47 // delete from parent's child list (if any)
50 c = &m_parent->m_children;
58 // delete all children ...
62 Yaz_PDU_Assoc *here = *c;
69 void Yaz_PDU_Assoc::socketNotify(int event)
71 logf (LOG_LOG, "socketNotify p=%p event = %d", this, event);
72 if (m_state == Connected)
75 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
76 YAZ_SOCKET_OBSERVE_EXCEPT);
77 m_PDU_Observer->connectNotify();
80 else if (m_state == Connecting)
82 if (event & YAZ_SOCKET_OBSERVE_READ)
85 m_PDU_Observer->failNotify();
90 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
91 YAZ_SOCKET_OBSERVE_EXCEPT);
92 m_PDU_Observer->connectNotify();
96 else if (m_state == Listen)
98 logf (LOG_LOG, "handler_listen %d", event);
99 if (event & YAZ_SOCKET_OBSERVE_READ)
104 if ((res = cs_listen(m_cs, 0, 0)) == 1)
108 logf(LOG_FATAL, "cs_listen failed");
111 if (!(new_line = cs_accept(m_cs)))
114 Yaz_PDU_Assoc *assoc = new Yaz_PDU_Assoc (m_socketObservable,
116 assoc->m_parent = this;
117 assoc->m_next = m_children;
120 assoc->m_PDU_Observer = m_PDU_Observer->clone(assoc);
121 assoc->m_state = Ready;
122 assoc->m_socketObservable->addObserver(cs_fileno(new_line), assoc);
123 assoc->m_socketObservable->maskObserver(assoc,
124 YAZ_SOCKET_OBSERVE_READ|
125 YAZ_SOCKET_OBSERVE_EXCEPT);
128 else if (m_state == Ready)
130 if (event & YAZ_SOCKET_OBSERVE_WRITE)
132 logf (LOG_LOG, "socketNotify write");
135 if (event & YAZ_SOCKET_OBSERVE_READ)
137 logf (LOG_LOG, "socketNotify read");
140 int res = cs_get (m_cs, &m_input_buf, &m_input_len);
145 logf (LOG_LOG, "Connection closed by server");
147 m_PDU_Observer->failNotify();
150 m_PDU_Observer->recv_PDU(m_input_buf, res);
151 } while (cs_more (m_cs));
156 void Yaz_PDU_Assoc::close()
158 m_socketObservable->deleteObserver(this);
162 logf (LOG_LOG, "Yaz_PDU_Assoc::close fd=%d", cs_fileno(m_cs));
166 PDU_Queue **q = &m_queue_out;
169 PDU_Queue *q_this = *q;
178 Yaz_PDU_Assoc::PDU_Queue::PDU_Queue(const char *buf, int len)
180 m_buf = (char *) malloc (len);
181 memcpy (m_buf, buf, len);
186 Yaz_PDU_Assoc::PDU_Queue::~PDU_Queue()
191 int Yaz_PDU_Assoc::flush_PDU()
195 logf (LOG_LOG, "flush_PDU fd=%d", cs_fileno(m_cs));
196 if (m_state != Ready)
198 PDU_Queue *q = m_queue_out;
201 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
202 YAZ_SOCKET_OBSERVE_EXCEPT);
205 r = cs_put (m_cs, q->m_buf, q->m_len);
209 m_PDU_Observer->failNotify();
214 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
215 YAZ_SOCKET_OBSERVE_EXCEPT|
216 YAZ_SOCKET_OBSERVE_WRITE);
217 logf (LOG_LOG, "put %d bytes (incomplete write)", q->m_len);
220 logf (LOG_LOG, "put %d bytes fd=%d", q->m_len, cs_fileno(m_cs));
221 // whole packet sent... delete this and proceed to next ...
222 m_queue_out = q->m_next;
223 logf (LOG_LOG, "m_queue_out = %p", m_queue_out);
225 // don't select on write if queue is empty ...
227 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
228 YAZ_SOCKET_OBSERVE_EXCEPT);
232 int Yaz_PDU_Assoc::send_PDU(const char *buf, int len)
234 PDU_Queue **pq = &m_queue_out;
235 int is_idle = (*pq ? 0 : 1);
237 logf (LOG_LOG, "send_PDU, m_queue_out=%p fd=%d", m_queue_out,
241 logf (LOG_LOG, "send_PDU failed, m_cs == 0");
246 *pq = new PDU_Queue(buf, len);
253 logf (LOG_LOG, "cannot send_PDU fd=%d", cs_fileno(m_cs));
258 COMSTACK Yaz_PDU_Assoc::comstack()
262 CS_TYPE cs_type = tcpip_type;
263 int protocol = PROTO_Z3950;
264 m_cs = cs_create (cs_type, 0, protocol);
269 void Yaz_PDU_Assoc::listen(IYaz_PDU_Observer *observer,
274 COMSTACK cs = comstack();
276 m_PDU_Observer = observer;
279 ap = cs_straddr (cs, addr);
282 if (cs_bind(cs, ap, CS_SERVER) < 0)
284 m_socketObservable->addObserver(cs_fileno(cs), this);
285 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
286 YAZ_SOCKET_OBSERVE_EXCEPT);
290 void Yaz_PDU_Assoc::connect(IYaz_PDU_Observer *observer,
293 logf (LOG_LOG, "Yaz_PDU_Assoc::connect");
295 m_PDU_Observer = observer;
296 COMSTACK cs = comstack();
297 void *ap = cs_straddr (cs, addr);
300 int res = cs_connect (cs, ap);
303 logf (LOG_DEBUG, "Yaz_PDU_Assoc::connect failed");
307 m_socketObservable->addObserver(cs_fileno(cs), this);
308 m_socketObservable->maskObserver(this, YAZ_SOCKET_OBSERVE_READ|
309 YAZ_SOCKET_OBSERVE_EXCEPT|
310 YAZ_SOCKET_OBSERVE_WRITE);
312 m_state = Connecting;