X-Git-Url: http://sru.miketaylor.org.uk/?a=blobdiff_plain;f=src%2Fyaz-proxy.cpp;h=03b8228409e4b75726d732d026dd2b108d739e18;hb=8c594d2cb1d5f9a3042883763fbdf846ba0eef70;hp=61fc74865554369b35c58918f81e48603a6fe0a4;hpb=c36ba47d8eb3202dfad0233c47c3e707c49bfd93;p=yazpp-moved-to-github.git diff --git a/src/yaz-proxy.cpp b/src/yaz-proxy.cpp index 61fc748..03b8228 100644 --- a/src/yaz-proxy.cpp +++ b/src/yaz-proxy.cpp @@ -1,15 +1,15 @@ /* - * Copyright (c) 1998-2001, Index Data. + * Copyright (c) 1998-2003, Index Data. * See the file LICENSE for details. * - * $Id: yaz-proxy.cpp,v 1.33 2002-09-10 11:30:54 adam Exp $ + * $Id: yaz-proxy.cpp,v 1.39 2003-06-09 22:20:39 adam Exp $ */ #include #include #include -#include +#include Yaz_Proxy::Yaz_Proxy(IYaz_PDU_Observable *the_PDU_Observable) : Yaz_Z_Assoc(the_PDU_Observable) @@ -24,6 +24,7 @@ Yaz_Proxy::Yaz_Proxy(IYaz_PDU_Observable *the_PDU_Observable) : m_proxy_authentication = 0; m_max_clients = 50; m_seed = time(0); + m_idletime = 600; m_optimize = xstrdup ("1"); } @@ -55,7 +56,7 @@ IYaz_PDU_Observer *Yaz_Proxy::sessionNotify(IYaz_PDU_Observable { Yaz_Proxy *new_proxy = new Yaz_Proxy(the_PDU_Observable); new_proxy->m_parent = this; - new_proxy->timeout(500); + new_proxy->timeout(m_idletime); new_proxy->set_proxy_target(m_proxyTarget); new_proxy->set_APDU_log(get_APDU_log()); new_proxy->set_proxy_authentication(m_proxy_authentication); @@ -147,7 +148,7 @@ Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu) c->m_last_resultCount = 0; c->m_sr_transform = 0; c->m_waiting = 0; - c->timeout(600); + c->timeout(m_idletime); } c->m_seqno = parent->m_seqno; if (c->m_server && c->m_server != this) @@ -159,6 +160,34 @@ Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu) return c; } } + else if (!c) + { + Yaz_ProxyClient *cc = 0; + + for (c = parent->m_clientPool; c; c = c->m_next) + { + assert (c->m_prev); + assert (*c->m_prev == c); + if (c->m_server == 0 && c->m_cookie[0] == 0 && + !strcmp(m_proxyTarget, c->get_hostname())) + { + cc = c; + } + } + if (cc) + { + // found it in cache + c = cc; + + c->m_seqno = parent->m_seqno; + assert(c->m_server == 0); + c->m_server = this; + c->m_seqno = parent->m_seqno; + (parent->m_seqno)++; + yaz_log (LOG_LOG, "get_client 10 %p %p", this, c); + return c; + } + } if (!m_client) { if (apdu->which != Z_APDU_initRequest) @@ -252,7 +281,7 @@ Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu) c->m_last_ok = 0; c->m_sr_transform = 0; c->m_waiting = 0; - c->timeout(10); + c->timeout(20); (parent->m_seqno)++; } @@ -264,8 +293,8 @@ Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu) { if (apdu->which != Z_APDU_searchRequest) return apdu; - if (*m_parent->m_optimize != '1') - return apdu; + if (*m_parent->m_optimize == '0') + return apdu; // don't optimize result sets.. Z_SearchRequest *sr = apdu->u.searchRequest; Yaz_Z_Query *this_query = new Yaz_Z_Query; Yaz_Z_Databases this_databases; @@ -277,6 +306,7 @@ Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu) if (m_client->m_last_ok && m_client->m_last_query && m_client->m_last_query->match(this_query) && + !strcmp(m_client->m_last_resultSetId, sr->resultSetName) && m_client->m_last_databases.match(this_databases)) { delete this_query; @@ -291,7 +321,10 @@ Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu) pr->referenceId = sr->referenceId; pr->resultSetId = sr->resultSetName; pr->preferredRecordSyntax = sr->preferredRecordSyntax; - *pr->numberOfRecordsRequested = *sr->mediumSetPresentNumber; + if (*sr->mediumSetPresentNumber < m_client->m_last_resultCount) + *pr->numberOfRecordsRequested = *sr->mediumSetPresentNumber; + else + *pr->numberOfRecordsRequested = m_client->m_last_resultCount; if (sr->mediumSetElementSetNames) { pr->recordComposition = (Z_RecordComposition *) @@ -341,6 +374,10 @@ Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu) delete m_client->m_last_query; m_client->m_last_query = this_query; m_client->m_last_ok = 0; + + xfree (m_client->m_last_resultSetId); + m_client->m_last_resultSetId = xstrdup (sr->resultSetName); + m_client->m_last_databases.set(sr->num_databaseNames, (const char **) sr->databaseNames); } @@ -383,7 +420,8 @@ void Yaz_Proxy::recv_Z_PDU(Z_APDU *apdu) { if (m_client->m_init_flag) { - Z_APDU *apdu = create_Z_PDU(Z_APDU_initResponse); + Z_APDU *apdu = m_client->m_initResponse; + apdu->u.initResponse->otherInfo = 0; if (m_client->m_cookie) set_otherInformationString(apdu, VAL_COOKIE, 1, m_client->m_cookie); @@ -421,26 +459,26 @@ void Yaz_Proxy::connectNotify() void Yaz_Proxy::shutdown() { - // only keep if keep_alive flag and cookie is set... - if (m_keepalive && m_client && m_client->m_cookie[0]) + // only keep if keep_alive flag is set... + if (m_keepalive && m_client) { - if (m_client->m_waiting == 2) - abort(); + yaz_log (LOG_LOG, "shutdown (client to proxy) keepalive %s", + m_client->get_hostname()); + assert (m_client->m_waiting != 2); // Tell client (if any) that no server connection is there.. m_client->m_server = 0; - yaz_log (LOG_LOG, "shutdown (client to proxy) keepalive %s", m_client->get_hostname()); } else if (m_client) { - if (m_client->m_waiting == 2) - abort(); - yaz_log (LOG_LOG, "shutdown (client to proxy) close %s", m_client->get_hostname()); + yaz_log (LOG_LOG, "shutdown (client to proxy) close %s", + m_client->get_hostname()); + assert (m_client->m_waiting != 2); delete m_client; } else if (!m_parent) { yaz_log (LOG_LOG, "shutdown (client to proxy) bad state"); - abort(); + assert (m_parent); } else { @@ -487,7 +525,9 @@ Yaz_ProxyClient::~Yaz_ProxyClient() if (m_next) m_next->m_prev = m_prev; m_waiting = 2; // for debugging purposes only. + odr_destroy(m_init_odr); delete m_last_query; + xfree (m_last_resultSetId); } void Yaz_Proxy::timeoutNotify() @@ -510,10 +550,13 @@ Yaz_ProxyClient::Yaz_ProxyClient(IYaz_PDU_Observable *the_PDU_Observable) : m_prev = 0; m_init_flag = 0; m_last_query = 0; + m_last_resultSetId = 0; m_last_resultCount = 0; m_last_ok = 0; m_sr_transform = 0; m_waiting = 0; + m_init_odr = odr_createmem (ODR_DECODE); + m_initResponse = 0; } const char *Yaz_Proxy::option(const char *name, const char *value) @@ -533,6 +576,14 @@ void Yaz_ProxyClient::recv_Z_PDU(Z_APDU *apdu) m_waiting = 0; yaz_log (LOG_LOG, "Receiving %s from %s", apdu_name(apdu), get_hostname()); + if (apdu->which == Z_APDU_initResponse) + { + NMEM nmem = odr_extract_mem (odr_decode()); + odr_reset (m_init_odr); + nmem_transfer (m_init_odr->mem, nmem); + m_initResponse = apdu; + nmem_destroy (nmem); + } if (apdu->which == Z_APDU_searchResponse) { m_last_resultCount = *apdu->u.searchResponse->resultCount;