/* This file is part of Metaproxy.
- Copyright (C) 2005-2012 Index Data
+ Copyright (C) 2005-2013 Index Data
Metaproxy is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
time_t m_backend_set_ttl;
time_t m_backend_expiry_ttl;
size_t m_backend_set_max;
+ Odr_int m_preferredMessageSize;
+ Odr_int m_maximumRecordSize;
public:
BackendClass(const yazpp_1::GDU &init_request,
int resultset_ttl,
int resultset_max,
- int session_ttl);
+ int session_ttl,
+ Odr_int preferredRecordSize,
+ Odr_int maximumRecordSize);
~BackendClass();
};
// frontend result set
bool m_optimize_search;
bool m_restart;
int m_session_max;
+ Odr_int m_preferredMessageSize;
+ Odr_int m_maximumRecordSize;
};
}
}
ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_2);
ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_3);
+ if (m_preferredMessageSize)
+ *req->preferredMessageSize = m_preferredMessageSize;
+ if (m_maximumRecordSize)
+ *req->maximumRecordSize = m_maximumRecordSize;
+
init_package.request() = init_pdu;
init_package.move();
m_named_result_sets = false;
Z_GDU *gdu = init_package.response().get();
- if (init_package.session().is_closed())
- {
- /* already closed. We don't know why */
- return null;
- }
- else if (gdu && gdu->which == Z_GDU_Z3950
- && gdu->u.z3950->which == Z_APDU_initResponse
- && *gdu->u.z3950->u.initResponse->result)
+
+ if (gdu && gdu->which == Z_GDU_Z3950
+ && gdu->u.z3950->which == Z_APDU_initResponse)
{
- /* successful init response */
Z_InitResponse *res = gdu->u.z3950->u.initResponse;
m_init_response = gdu->u.z3950;
if (ODR_MASK_GET(res->options, Z_Options_namedResultSets))
{
m_named_result_sets = true;
}
+ if (*gdu->u.z3950->u.initResponse->result
+ && !init_package.session().is_closed())
+ {
+ bp->m_in_use = true;
+ time(&bp->m_time_last_use);
+ bp->m_sequence_this = 0;
+ bp->m_result_set_sequence = 0;
+ m_backend_list.push_back(bp);
+ return bp;
+ }
}
else
{
- /* not init or init rejected */
+ yazpp_1::GDU empty_gdu;
+ m_init_response = empty_gdu;
+ }
+
+ if (!init_package.session().is_closed())
+ {
init_package.copy_filter(frontend_package);
init_package.session().close();
init_package.move();
- return null;
}
- bp->m_in_use = true;
- time(&bp->m_time_last_use);
- bp->m_sequence_this = 0;
- bp->m_result_set_sequence = 0;
- m_backend_list.push_back(bp);
-
- return bp;
+ return null;
}
yf::SessionShared::BackendClass::BackendClass(const yazpp_1::GDU &init_request,
int resultset_ttl,
int resultset_max,
- int session_ttl)
+ int session_ttl,
+ Odr_int preferredMessageSize,
+ Odr_int maximumRecordSize)
: m_named_result_sets(false), m_init_request(init_request),
m_sequence_top(0), m_backend_set_ttl(resultset_ttl),
- m_backend_expiry_ttl(session_ttl), m_backend_set_max(resultset_max)
+ m_backend_expiry_ttl(session_ttl), m_backend_set_max(resultset_max),
+ m_preferredMessageSize(preferredMessageSize),
+ m_maximumRecordSize(maximumRecordSize)
{}
yf::SessionShared::BackendClass::~BackendClass()
BackendClassPtr b(new BackendClass(gdu->u.z3950,
m_resultset_ttl,
m_resultset_max,
- m_session_ttl));
+ m_session_ttl,
+ m_preferredMessageSize,
+ m_maximumRecordSize));
m_backend_map[k] = b;
frontend->m_backend_class = b;
}
}
}
BackendClassPtr bc = frontend->m_backend_class;
- BackendInstancePtr backend;
mp::odr odr;
// we only need to get init response from "first" target in
// backend class - the assumption being that init response is
// same for all
- if (bc->m_init_response.get() == 0)
+ if (bc->m_backend_list.size() == 0)
{
- backend = bc->get_backend(package);
+ BackendInstancePtr backend = bc->create_backend(package);
+ if (backend)
+ bc->release_backend(backend);
}
+
+ yazpp_1::GDU init_response;
{
boost::mutex::scoped_lock lock(bc->m_mutex_backend_class);
- if (bc->m_init_response.get() == 0)
- {
- Z_APDU *apdu = odr.create_initResponse(gdu->u.z3950, 0, 0);
- *apdu->u.initResponse->result = 0;
- package.response() = apdu;
+
+ init_response = bc->m_init_response;
+ }
+
+ if (init_response.get())
+ {
+ Z_GDU *response_gdu = init_response.get();
+ mp::util::transfer_referenceId(odr, gdu->u.z3950,
+ response_gdu->u.z3950);
+ Z_InitResponse *init_res = response_gdu->u.z3950->u.initResponse;
+ Z_Options *server_options = init_res->options;
+ Z_Options *client_options = &frontend->m_init_options;
+ int i;
+ for (i = 0; i < 30; i++)
+ if (!ODR_MASK_GET(client_options, i))
+ ODR_MASK_CLEAR(server_options, i);
+
+ if (!m_preferredMessageSize ||
+ *init_res->preferredMessageSize > *req->preferredMessageSize)
+ *init_res->preferredMessageSize = *req->preferredMessageSize;
+
+ if (!m_maximumRecordSize ||
+ *init_res->maximumRecordSize > *req->maximumRecordSize)
+ *init_res->maximumRecordSize = *req->maximumRecordSize;
+
+ package.response() = init_response;
+ if (!*response_gdu->u.z3950->u.initResponse->result)
package.session().close();
- }
- else
- {
- yazpp_1::GDU init_response = bc->m_init_response;
- Z_GDU *response_gdu = init_response.get();
- mp::util::transfer_referenceId(odr, gdu->u.z3950,
- response_gdu->u.z3950);
-
- Z_Options *server_options =
- response_gdu->u.z3950->u.initResponse->options;
- Z_Options *client_options = &frontend->m_init_options;
-
- int i;
- for (i = 0; i < 30; i++)
- if (!ODR_MASK_GET(client_options, i))
- ODR_MASK_CLEAR(server_options, i);
- package.response() = init_response;
- }
}
- if (backend)
- bc->release_backend(backend);
+ else
+ {
+ Z_APDU *apdu =
+ odr.create_initResponse(
+ gdu->u.z3950, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
+ "session_shared: target closed connection during init");
+ *apdu->u.initResponse->result = 0;
+ package.response() = apdu;
+ package.session().close();
+ }
}
void yf::SessionShared::BackendSet::timestamp()
return true;
}
Z_APDU *f_apdu = 0;
+ const char *addinfo = "session_shared: "
+ "target closed connection during search";
if (frontend_apdu->which == Z_APDU_searchRequest)
f_apdu = odr.create_searchResponse(
- frontend_apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, 0);
+ frontend_apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, addinfo);
else if (frontend_apdu->which == Z_APDU_presentRequest)
f_apdu = odr.create_presentResponse(
- frontend_apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, 0);
+ frontend_apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, addinfo);
else
f_apdu = odr.create_close(
- frontend_apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, 0);
+ frontend_apdu, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, addinfo);
frontend_package.response() = f_apdu;
return false;
}
if (out_of_sessions)
addinfo = "session_shared: all sessions in use";
+ else
+ addinfo = "session_shared: could not create backend";
if (apdu_req->which == Z_APDU_searchRequest)
{
f_apdu = odr.create_searchResponse(
bc->remove_backend(found_backend);
Z_APDU *f_apdu_res =
odr.create_presentResponse(
- apdu_req, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, 0);
+ apdu_req, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
+ "session_shared: target closed connection during present");
package.response() = f_apdu_res;
}
}
{
mp::odr odr;
Z_APDU *apdu = odr.create_scanResponse(
- apdu_req, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, 0);
+ apdu_req, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
+ "session_shared: could not create backend");
frontend_package.response() = apdu;
}
else
while (true)
{
boost::xtime xt;
- boost::xtime_get(&xt, boost::TIME_UTC);
+ boost::xtime_get(&xt,
+#if BOOST_VERSION >= 105000
+ boost::TIME_UTC_
+#else
+ boost::TIME_UTC
+#endif
+ );
xt.sec += m_session_ttl / 3;
boost::thread::sleep(xt);
m_optimize_search = true;
m_restart = false;
m_session_max = 100;
+ m_preferredMessageSize = 0;
+ m_maximumRecordSize = 0;
}
void yf::SessionShared::Rep::start()
attr->name));
}
}
+ else if (!strcmp((const char *) ptr->name, "init"))
+ {
+ const struct _xmlAttr *attr;
+ for (attr = ptr->properties; attr; attr = attr->next)
+ {
+ if (!strcmp((const char *) attr->name, "maximum-record-size"))
+ m_p->m_maximumRecordSize =
+ mp::xml::get_int(attr->children, 0);
+ else if (!strcmp((const char *) attr->name,
+ "preferred-message-size"))
+ m_p->m_preferredMessageSize =
+ mp::xml::get_int(attr->children, 0);
+ else
+ throw mp::filter::FilterException(
+ "Bad attribute " + std::string((const char *)
+ attr->name));
+ }
+ }
else
{
throw mp::filter::FilterException("Bad element "
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