/* This file is part of Metaproxy.
- Copyright (C) 2005-2013 Index Data
+ Copyright (C) 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
#include <map>
#include <iostream>
#include <time.h>
+#include <limits.h>
namespace mp = metaproxy_1;
namespace yf = metaproxy_1::filter;
time_t m_time_last_use;
void timestamp();
yazpp_1::RecordCache m_record_cache;
+
+ Z_OtherInformation *additionalSearchInfoRequest;
+ Z_OtherInformation *additionalSearchInfoResponse;
+ NMEM mem_additionalSearchInfo;
BackendSet(
const std::string &result_set_id,
const Databases &databases,
- const yazpp_1::Yaz_Z_Query &query);
+ const yazpp_1::Yaz_Z_Query &query,
+ Z_OtherInformation *additionalSearchInfoRequest);
+ ~BackendSet();
bool search(
Package &frontend_package,
Package &search_package,
void release_frontend(Package &package);
Rep();
public:
+ ~Rep();
void expire();
private:
void expire_classes();
void start();
boost::mutex m_mutex;
boost::condition m_cond_session_ready;
+ boost::condition m_cond_expire_ready;
std::map<mp::Session, FrontendPtr> m_clients;
BackendClassMap m_backend_map;
int m_session_max;
Odr_int m_preferredMessageSize;
Odr_int m_maximumRecordSize;
+ bool close_down;
};
}
}
void yf::SessionShared::BackendClass::remove_backend(BackendInstancePtr b)
{
- BackendInstanceList::iterator it = m_backend_list.begin();
-
- while (it != m_backend_list.end())
{
- if (*it == b)
+ boost::mutex::scoped_lock lock(m_mutex_backend_class);
+ BackendInstanceList::iterator it = m_backend_list.begin();
+ for (;;)
{
- mp::odr odr;
- (*it)->m_close_package->response() = odr.create_close(
- 0, Z_Close_lackOfActivity, 0);
- (*it)->m_close_package->session().close();
- (*it)->m_close_package->move();
-
- it = m_backend_list.erase(it);
- }
- else
+ if (it == m_backend_list.end())
+ return;
+ if (*it == b)
+ {
+ it = m_backend_list.erase(it);
+ break;
+ }
it++;
+ }
}
+ mp::odr odr;
+ b->m_close_package->response() = odr.create_close(
+ 0, Z_Close_lackOfActivity, 0);
+ b->m_close_package->session().close();
+ b->m_close_package->move();
}
-
yf::SessionShared::BackendInstancePtr
yf::SessionShared::BackendClass::get_backend(
const mp::Package &frontend_package)
yf::SessionShared::BackendInstance::~BackendInstance()
{
+ if (m_close_package)
+ {
+ mp::odr odr;
+ m_close_package->response() = odr.create_close(
+ 0, Z_Close_lackOfActivity, 0);
+ m_close_package->session().close();
+ m_close_package->move();
+ }
delete m_close_package;
}
no_instances++;
}
}
- yaz_log(YLOG_LOG, "backend classes=%d instances=%d", no_classes,
- no_instances);
}
void yf::SessionShared::Rep::init(mp::Package &package, const Z_GDU *gdu,
yf::SessionShared::BackendSet::BackendSet(
const std::string &result_set_id,
const Databases &databases,
- const yazpp_1::Yaz_Z_Query &query) :
+ const yazpp_1::Yaz_Z_Query &query,
+ Z_OtherInformation *additionalSearchInfo) :
m_result_set_id(result_set_id),
m_databases(databases), m_result_set_size(0), m_query(query)
{
timestamp();
+ mem_additionalSearchInfo = nmem_create();
+ additionalSearchInfoResponse = 0;
+ additionalSearchInfoRequest =
+ yaz_clone_z_OtherInformation(additionalSearchInfo,
+ mem_additionalSearchInfo);
+}
+
+yf::SessionShared::BackendSet::~BackendSet()
+{
+ nmem_destroy(mem_additionalSearchInfo);
}
static int get_diagnostic(Z_DefaultDiagFormat *r)
Z_APDU *apdu_req = zget_APDU(odr, Z_APDU_searchRequest);
Z_SearchRequest *req = apdu_req->u.searchRequest;
+ req->additionalSearchInfo = additionalSearchInfoRequest;
req->resultSetName = odr_strdup(odr, m_result_set_id.c_str());
req->query = m_query.get_Z_Query();
Z_SearchResponse *b_resp = gdu->u.z3950->u.searchResponse;
*z_records = b_resp->records;
m_result_set_size = *b_resp->resultCount;
+
+ additionalSearchInfoResponse = yaz_clone_z_OtherInformation(
+ b_resp->additionalSearchInfo, mem_additionalSearchInfo);
return true;
}
Z_APDU *f_apdu = 0;
BackendSetPtr &found_set)
{
bool session_restarted = false;
+ Z_OtherInformation *additionalSearchInfo = 0;
+
+ if (apdu_req->which == Z_APDU_searchRequest)
+ additionalSearchInfo = apdu_req->u.searchRequest->additionalSearchInfo;
restart:
std::string result_set_id;
BackendSetList::const_iterator set_it = (*it)->m_sets.begin();
for (; set_it != (*it)->m_sets.end(); set_it++)
{
+ // for real present request we don't care
+ // if additionalSearchInfo matches: same records
if ((*set_it)->m_databases == databases
- && query.match(&(*set_it)->m_query))
+ && query.match(&(*set_it)->m_query)
+ && (apdu_req->which != Z_APDU_searchRequest ||
+ yaz_compare_z_OtherInformation(
+ additionalSearchInfo,
+ (*set_it)->additionalSearchInfoRequest)))
{
found_set = *set_it;
found_backend = *it;
// we must search ...
BackendSetPtr new_set(new BackendSet(result_set_id,
- databases, query));
+ databases, query,
+ additionalSearchInfo));
Z_Records *z_records = 0;
Package search_package(found_backend->m_session, package.origin());
Z_APDU *f_apdu = odr.create_searchResponse(apdu_req, 0, 0);
Z_SearchResponse *f_resp = f_apdu->u.searchResponse;
*f_resp->resultCount = found_set->m_result_set_size;
+ f_resp->additionalSearchInfo = found_set->additionalSearchInfoResponse;
package.response() = f_apdu;
FrontendSetPtr fset(new FrontendSet(databases, query));
return;
Z_NamePlusRecordList *npr_res = 0;
- if (found_set->m_record_cache.lookup(odr, &npr_res,
- *req->resultSetStartPoint,
- *req->numberOfRecordsRequested,
- req->preferredRecordSyntax,
- req->recordComposition))
+ // record_cache.lookup types are int's. Avoid non-fitting values
+ if (*req->resultSetStartPoint > 0
+ && *req->resultSetStartPoint < INT_MAX
+ && *req->numberOfRecordsRequested > 0
+ && *req->numberOfRecordsRequested < INT_MAX
+ && found_set->m_record_cache.lookup(odr, &npr_res,
+ *req->resultSetStartPoint,
+ *req->numberOfRecordsRequested,
+ req->preferredRecordSyntax,
+ req->recordComposition))
{
Z_APDU *f_apdu_res = odr.create_presentResponse(apdu_req, 0, 0);
Z_PresentResponse *f_resp = f_apdu_res->u.presentResponse;
if (b_resp->records && b_resp->records->which == Z_Records_DBOSD)
{
+ Z_NamePlusRecordList *npr =
+ b_resp->records->u.databaseOrSurDiagnostics;
+ // record_cache.add types are int's. Avoid non-fitting values
+ if (*req->resultSetStartPoint > 0
+ && npr->num_records + *req->resultSetStartPoint < INT_MAX)
+ {
#if 0
- yaz_log(YLOG_LOG, "Adding " ODR_INT_PRINTF "+" ODR_INT_PRINTF
- " records to cache %p",
- *req->resultSetStartPoint,
- *f_resp->numberOfRecordsReturned,
- &found_set->m_record_cache);
+ yaz_log(YLOG_LOG, "Adding " ODR_INT_PRINTF "+" ODR_INT_PRINTF
+ " records to cache %p",
+ *req->resultSetStartPoint,
+ *f_resp->numberOfRecordsReturned,
+ &found_set->m_record_cache);
#endif
- found_set->m_record_cache.add(
- odr,
- b_resp->records->u.databaseOrSurDiagnostics,
- *req->resultSetStartPoint,
- *f_resp->numberOfRecordsReturned);
+ found_set->m_record_cache.add(
+ odr, npr, *req->resultSetStartPoint,
+ p_req->recordComposition);
+ }
}
bc->release_backend(found_backend);
}
}
else if (now < last_use || now - last_use > m_backend_expiry_ttl)
{
- mp::odr odr;
- (*bit)->m_close_package->response() = odr.create_close(
- 0, Z_Close_lackOfActivity, 0);
- (*bit)->m_close_package->session().close();
- (*bit)->m_close_package->move();
-
bit = m_backend_list.erase(bit);
}
else
{
boost::xtime xt;
boost::xtime_get(&xt,
-#if BOOST_VERSION >= 105000
+#if BOOST_VERSION >= 105000
boost::TIME_UTC_
#else
boost::TIME_UTC
#endif
);
xt.sec += m_session_ttl / 3;
- boost::thread::sleep(xt);
-
+ {
+ boost::mutex::scoped_lock lock(m_mutex);
+ m_cond_expire_ready.timed_wait(lock, xt);
+ if (close_down)
+ break;
+ }
stat();
expire_classes();
}
m_session_max = 100;
m_preferredMessageSize = 0;
m_maximumRecordSize = 0;
+ close_down = false;
+}
+
+yf::SessionShared::Rep::~Rep()
+{
+ {
+ boost::mutex::scoped_lock lock(m_mutex);
+ close_down = true;
+ m_cond_expire_ready.notify_all();
+ }
+ m_thrds.join_all();
}
void yf::SessionShared::Rep::start()
projects / metaproxy-moved-to-github.git / blobdiff