X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=src%2Ffilter_frontend_net.cpp;h=2e2ada228645ba4bf1371bf8f92eaa870bc15bfa;hb=1fe3038c15740cf21a2eb7b00edad8d216384c2e;hp=362e48964476134fd7ff5324a924f6ea5abe6438;hpb=c1d953eee6c00432493bc364da6284704ccd9cc2;p=metaproxy-moved-to-github.git

diff --git a/src/filter_frontend_net.cpp b/src/filter_frontend_net.cpp
index 362e489..2e2ada2 100644
--- a/src/filter_frontend_net.cpp
+++ b/src/filter_frontend_net.cpp
@@ -1,5 +1,5 @@
 /* This file is part of Metaproxy.
-   Copyright (C) 2005-2011 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
@@ -18,6 +18,11 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 #include "config.hpp"
 
+#if HAVE_GETRLIMIT
+#include <sys/resource.h>
+#endif
+#include <sstream>
+#include <iomanip>
 #include <metaproxy/util.hpp>
 #include "pipe.hpp"
 #include <metaproxy/filter.hpp>
@@ -28,104 +33,156 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include <yazpp/pdu-assoc.h>
 #include <yazpp/socket-manager.h>
 #include <yazpp/limit-connect.h>
+#include <yaz/timing.h>
 #include <yaz/log.h>
+#include <yaz/daemon.h>
+#include "gduutil.hpp"
+#include <signal.h>
 
 #include <iostream>
 
 namespace mp = metaproxy_1;
+namespace yf = metaproxy_1::filter;
 
 namespace metaproxy_1 {
-    class My_Timer_Thread;
-    class ZAssocServer;
     namespace filter {
+        class FrontendNet::Port {
+            friend class Rep;
+            friend class FrontendNet;
+            std::string port;
+            std::string route;
+            std::string cert_fname;
+            int max_recv_bytes;
+        };
         class FrontendNet::Rep {
             friend class FrontendNet;
+
             int m_no_threads;
-            std::vector<std::string> m_ports;
+            int m_max_threads;
+            int m_stack_size;
+            std::vector<Port> m_ports;
             int m_listen_duration;
             int m_session_timeout;
             int m_connect_max;
+            int m_http_req_max;
+            std::string m_msg_config;
+            std::string m_stat_req;
             yazpp_1::SocketManager mySocketManager;
             ZAssocServer **az;
+            yazpp_1::PDU_Assoc **pdu;
+            int m_duration_freq[22];
+            double m_duration_lim[22];
+            double m_duration_max;
+            double m_duration_min;
+            double m_duration_total;
+            int m_stop_signo;
+        public:
+            Rep();
+            ~Rep();
+        };
+        class FrontendNet::My_Timer_Thread : public yazpp_1::ISocketObserver {
+        private:
+            yazpp_1::ISocketObservable *m_obs;
+            Pipe m_pipe;
+            bool m_timeout;
+        public:
+            My_Timer_Thread(yazpp_1::ISocketObservable *obs, int duration);
+            void socketNotify(int event);
+            bool timeout();
+        };
+        class FrontendNet::ZAssocChild : public yazpp_1::Z_Assoc {
+        public:
+            ~ZAssocChild();
+            ZAssocChild(yazpp_1::IPDU_Observable *the_PDU_Observable,
+                        mp::ThreadPoolSocketObserver *m_thread_pool_observer,
+                        const mp::Package *package,
+                        Port *port,
+                        Rep *rep,
+                        yazpp_1::LimitConnect &limit_connect);
+            int m_no_requests;
+            Port *m_port;
+        private:
+            yazpp_1::IPDU_Observer* sessionNotify(
+                yazpp_1::IPDU_Observable *the_PDU_Observable,
+                int fd);
+            void recv_GDU(Z_GDU *apdu, int len);
+            void report(Z_HTTP_Request *hreq);
+            void failNotify();
+            void timeoutNotify();
+            void connectNotify();
+        private:
+            mp::ThreadPoolSocketObserver *m_thread_pool_observer;
+            mp::Session m_session;
+            mp::Origin m_origin;
+            bool m_delete_flag;
+            const mp::Package *m_package;
+            Rep *m_p;
+            yazpp_1::LimitConnect &m_limit_connect;
+        };
+        class FrontendNet::ThreadPoolPackage : public mp::IThreadPoolMsg {
+        public:
+            ThreadPoolPackage(mp::Package *package,
+                              yf::FrontendNet::ZAssocChild *ses,
+                              Rep *rep);
+            ~ThreadPoolPackage();
+            IThreadPoolMsg *handle();
+            void result(const char *t_info);
+            bool cleanup(void *info);
+        private:
+            yaz_timing_t timer;
+            ZAssocChild *m_assoc_child;
+            mp::Package *m_package;
+            Rep *m_p;
+        };
+        class FrontendNet::ZAssocServer : public yazpp_1::Z_Assoc {
+        public:
+            ~ZAssocServer();
+            ZAssocServer(yazpp_1::IPDU_Observable *PDU_Observable,
+                         FrontendNet::Port *port,
+                         Rep *rep);
+            void set_package(const mp::Package *package);
+            void set_thread_pool(ThreadPoolSocketObserver *observer);
+        private:
+            yazpp_1::IPDU_Observer* sessionNotify(
+                yazpp_1::IPDU_Observable *the_PDU_Observable,
+                int fd);
+            void recv_GDU(Z_GDU *apdu, int len);
+
+            void failNotify();
+            void timeoutNotify();
+            void connectNotify();
+        private:
+            mp::ThreadPoolSocketObserver *m_thread_pool_observer;
+            const mp::Package *m_package;
+            yazpp_1::LimitConnect limit_connect;
+            Port *m_port;
+            Rep *m_p;
         };
     }
-    class My_Timer_Thread : public yazpp_1::ISocketObserver {
-    private:
-        yazpp_1::ISocketObservable *m_obs;
-        Pipe m_pipe;
-        bool m_timeout;
-    public:
-        My_Timer_Thread(yazpp_1::ISocketObservable *obs, int duration);
-        void socketNotify(int event);
-        bool timeout();
-    };
-    class ZAssocChild : public yazpp_1::Z_Assoc {
-    public:
-        ~ZAssocChild();
-        ZAssocChild(yazpp_1::IPDU_Observable *the_PDU_Observable,
-                          mp::ThreadPoolSocketObserver *m_thread_pool_observer,
-                          const mp::Package *package);
-        int m_no_requests;
-    private:
-        yazpp_1::IPDU_Observer* sessionNotify(
-            yazpp_1::IPDU_Observable *the_PDU_Observable,
-            int fd);
-        void recv_GDU(Z_GDU *apdu, int len);
-        
-        void failNotify();
-        void timeoutNotify();
-        void connectNotify();
-    private:
-        mp::ThreadPoolSocketObserver *m_thread_pool_observer;
-        mp::Session m_session;
-        mp::Origin m_origin;
-        bool m_delete_flag;
-        const mp::Package *m_package;
-    };
-    class ThreadPoolPackage : public mp::IThreadPoolMsg {
-    public:
-        ThreadPoolPackage(mp::Package *package, mp::ZAssocChild *ses) :
-            m_assoc_child(ses), m_package(package) { };
-        ~ThreadPoolPackage();
-        IThreadPoolMsg *handle();
-        void result();
-        
-    private:
-        mp::ZAssocChild *m_assoc_child;
-        mp::Package *m_package;
-        
-    };
-    class ZAssocServer : public yazpp_1::Z_Assoc {
-    public:
-        ~ZAssocServer();
-        ZAssocServer(yazpp_1::IPDU_Observable *PDU_Observable, int timeout,
-                     int connect_max);
-        void set_package(const mp::Package *package);
-        void set_thread_pool(ThreadPoolSocketObserver *m_thread_pool_observer);
-    private:
-        yazpp_1::IPDU_Observer* sessionNotify(
-            yazpp_1::IPDU_Observable *the_PDU_Observable,
-            int fd);
-        void recv_GDU(Z_GDU *apdu, int len);
-        
-        void failNotify();
-        void timeoutNotify();
-    void connectNotify();
-    private:
-        mp::ThreadPoolSocketObserver *m_thread_pool_observer;
-        const mp::Package *m_package;
-        int m_session_timeout;
-        int m_connect_max;
-        yazpp_1::LimitConnect limit_connect;
-    };
 }
 
-mp::ThreadPoolPackage::~ThreadPoolPackage()
+yf::FrontendNet::ThreadPoolPackage::ThreadPoolPackage(mp::Package *package,
+                                                      ZAssocChild *ses,
+                                                      Rep *rep) :
+    m_assoc_child(ses), m_package(package), m_p(rep)
 {
+    timer = yaz_timing_create();
+}
+
+yf::FrontendNet::ThreadPoolPackage::~ThreadPoolPackage()
+{
+    yaz_timing_destroy(&timer); // timer may be NULL
     delete m_package;
 }
 
-void mp::ThreadPoolPackage::result()
+bool yf::FrontendNet::ThreadPoolPackage::cleanup(void *info)
+{
+    mp::Session *ses = (mp::Session *) info;
+
+    return *ses == m_package->session();
+}
+
+void yf::FrontendNet::ThreadPoolPackage::result(const char *t_info)
 {
     m_assoc_child->m_no_requests--;
 
@@ -135,6 +192,39 @@ void mp::ThreadPoolPackage::result()
     {
 	int len;
 	m_assoc_child->send_GDU(gdu->get(), &len);
+
+        yaz_timing_stop(timer);
+        double duration = yaz_timing_get_real(timer);
+
+        size_t ent = 0;
+        while (m_p->m_duration_lim[ent] != 0.0 && duration > m_p->m_duration_lim[ent])
+            ent++;
+        m_p->m_duration_freq[ent]++;
+
+        m_p->m_duration_total += duration;
+
+        if (m_p->m_duration_max < duration)
+            m_p->m_duration_max = duration;
+
+        if (m_p->m_duration_min == 0.0 || m_p->m_duration_min > duration)
+            m_p->m_duration_min = duration;
+
+        if (m_p->m_msg_config.length())
+        {
+            Z_GDU *z_gdu = gdu->get();
+
+            std::ostringstream os;
+            os  << m_p->m_msg_config << " "
+                << *m_package << " "
+                << std::fixed << std::setprecision (6) << duration << " ";
+
+            if (z_gdu)
+                os << *z_gdu;
+            else
+                os << "-";
+
+            yaz_log(YLOG_LOG, "%s %s", os.str().c_str(), t_info);
+        }
     }
     else if (!m_package->session().is_closed())
     {
@@ -148,7 +238,7 @@ void mp::ThreadPoolPackage::result()
             mp::odr odr;
             int len;
             Z_APDU *apdu_response = odr.create_close(
-                z_gdu->u.z3950, Z_Close_systemProblem, 
+                z_gdu->u.z3950, Z_Close_systemProblem,
                 "unhandled Z39.50 request");
 
             m_assoc_child->send_Z_PDU(apdu_response, &len);
@@ -158,8 +248,8 @@ void mp::ThreadPoolPackage::result()
             // For HTTP, respond with Server Error
             int len;
             mp::odr odr;
-            Z_GDU *zgdu_res 
-                = odr.create_HTTP_Response(m_package->session(), 
+            Z_GDU *zgdu_res
+                = odr.create_HTTP_Response(m_package->session(),
                                            z_gdu->u.HTTP_Request, 500);
             m_assoc_child->send_GDU(zgdu_res, &len);
         }
@@ -170,55 +260,178 @@ void mp::ThreadPoolPackage::result()
     {
         m_assoc_child->close();
     }
+
+
     delete this;
 }
 
-mp::IThreadPoolMsg *mp::ThreadPoolPackage::handle() 
+mp::IThreadPoolMsg *yf::FrontendNet::ThreadPoolPackage::handle()
 {
-    m_package->move();
+    m_package->move(m_assoc_child->m_port->route);
     return this;
 }
 
-
-mp::ZAssocChild::ZAssocChild(yazpp_1::IPDU_Observable *PDU_Observable,
-				     mp::ThreadPoolSocketObserver *my_thread_pool,
-				     const mp::Package *package)
-    :  Z_Assoc(PDU_Observable)
+yf::FrontendNet::ZAssocChild::ZAssocChild(
+    yazpp_1::IPDU_Observable *PDU_Observable,
+    mp::ThreadPoolSocketObserver *my_thread_pool,
+    const mp::Package *package,
+    Port *port, Rep *rep,
+    yazpp_1::LimitConnect &limit_connect)
+    :  Z_Assoc(PDU_Observable), m_p(rep), m_limit_connect(limit_connect)
 {
     m_thread_pool_observer = my_thread_pool;
     m_no_requests = 0;
     m_delete_flag = false;
     m_package = package;
+    m_port = port;
     const char *peername = PDU_Observable->getpeername();
     if (!peername)
         peername = "unknown";
-    m_origin.set_tcpip_address(std::string(peername), m_session.id());
+    else
+    {
+        const char *cp = strchr(peername, ':');
+        if (cp)
+            peername = cp + 1;
+    }
+    std::string addr;
+    addr.append(peername);
+    addr.append(" ");
+    addr.append(port->port);
+    m_origin.set_tcpip_address(addr, m_session.id());
+    timeout(m_p->m_session_timeout);
 }
 
-
-yazpp_1::IPDU_Observer *mp::ZAssocChild::sessionNotify(yazpp_1::IPDU_Observable
-						  *the_PDU_Observable, int fd)
+yazpp_1::IPDU_Observer *yf::FrontendNet::ZAssocChild::sessionNotify(
+    yazpp_1::IPDU_Observable *the_PDU_Observable, int fd)
 {
     return 0;
 }
 
-mp::ZAssocChild::~ZAssocChild()
+yf::FrontendNet::ZAssocChild::~ZAssocChild()
 {
 }
 
-void mp::ZAssocChild::recv_GDU(Z_GDU *z_pdu, int len)
+void yf::FrontendNet::ZAssocChild::report(Z_HTTP_Request *hreq)
+{
+    mp::odr o;
+
+    Z_GDU *gdu_res = o.create_HTTP_Response(m_session, hreq, 200);
+
+    Z_HTTP_Response *hres = gdu_res->u.HTTP_Response;
+
+    mp::wrbuf w;
+    size_t i;
+    int number_total = 0;
+
+    for (i = 0; m_p->m_duration_lim[i] != 0.0; i++)
+        number_total += m_p->m_duration_freq[i];
+    number_total += m_p->m_duration_freq[i];
+
+    wrbuf_puts(w, "<?xml version=\"1.0\"?>\n");
+    wrbuf_puts(w, "<frontend_net>\n");
+    wrbuf_printf(w, "  <responses frequency=\"%d\">\n", number_total);
+    for (i = 0; m_p->m_duration_lim[i] != 0.0; i++)
+    {
+        if (m_p->m_duration_freq[i] > 0)
+            wrbuf_printf(
+                w, "    <response duration_start=\"%f\" "
+                "duration_end=\"%f\" frequency=\"%d\"/>\n",
+                i > 0 ? m_p->m_duration_lim[i - 1] : 0.0,
+                m_p->m_duration_lim[i], m_p->m_duration_freq[i]);
+    }
+
+    if (m_p->m_duration_freq[i] > 0)
+        wrbuf_printf(
+            w, "    <response duration_start=\"%f\" frequency=\"%d\"/>\n",
+            m_p->m_duration_lim[i - 1], m_p->m_duration_freq[i]);
+
+    if (m_p->m_duration_max != 0.0)
+        wrbuf_printf(
+            w, "    <response duration_max=\"%f\"/>\n",
+            m_p->m_duration_max);
+    if (m_p->m_duration_min != 0.0)
+        wrbuf_printf(
+            w, "    <response duration_min=\"%f\"/>\n",
+            m_p->m_duration_min);
+    if (m_p->m_duration_total != 0.0)
+        wrbuf_printf(
+            w, "    <response duration_average=\"%f\"/>\n",
+            m_p->m_duration_total / number_total);
+
+    wrbuf_puts(w, " </responses>\n");
+
+    int thread_busy;
+    int thread_total;
+    m_thread_pool_observer->get_thread_info(thread_busy, thread_total);
+
+    wrbuf_printf(w, " <thread_info busy=\"%d\" total=\"%d\"/>\n",
+                 thread_busy, thread_total);
+
+    wrbuf_puts(w, "</frontend_net>\n");
+
+    hres->content_len = w.len();
+    hres->content_buf = (char *) w.buf();
+
+    int len;
+    send_GDU(gdu_res, &len);
+}
+
+void yf::FrontendNet::ZAssocChild::recv_GDU(Z_GDU *z_pdu, int len)
 {
     m_no_requests++;
 
     mp::Package *p = new mp::Package(m_session, m_origin);
 
-    mp::ThreadPoolPackage *tp = new mp::ThreadPoolPackage(p, this);
-    p->copy_filter(*m_package);
+    if (z_pdu && z_pdu->which == Z_GDU_HTTP_Request)
+    {
+        Z_HTTP_Request *hreq = z_pdu->u.HTTP_Request;
+
+        const char *f = z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
+        if (f)
+            p->origin().set_tcpip_address(std::string(f), m_session.id());
+
+        if (m_p->m_stat_req.length()
+            && !strcmp(hreq->path, m_p->m_stat_req.c_str()))
+        {
+            report(hreq);
+            return;
+        }
+        std::string peername = p->origin().get_address();
+
+        m_limit_connect.add_connect(peername.c_str());
+        m_limit_connect.cleanup(false);
+        int con_sz = m_limit_connect.get_total(peername.c_str());
+
+        if (m_p->m_http_req_max && con_sz >= m_p->m_http_req_max)
+        {
+            mp::odr o;
+            Z_GDU *gdu_res = o.create_HTTP_Response(m_session, hreq, 500);
+            int len;
+            send_GDU(gdu_res, &len);
+            return;
+        }
+    }
+
+    ThreadPoolPackage *tp = new ThreadPoolPackage(p, this, m_p);
+    p->copy_route(*m_package);
     p->request() = yazpp_1::GDU(z_pdu);
-    m_thread_pool_observer->put(tp);  
+
+    if (m_p->m_msg_config.length())
+    {
+        if (z_pdu)
+        {
+            std::ostringstream os;
+            os  << m_p->m_msg_config << " "
+                << *p << " "
+                << "0.000000" << " "
+                << *z_pdu;
+            yaz_log(YLOG_LOG, "%s", os.str().c_str());
+        }
+    }
+    m_thread_pool_observer->put(tp);
 }
 
-void mp::ZAssocChild::failNotify()
+void yf::FrontendNet::ZAssocChild::failNotify()
 {
     // TODO: send Package to signal "close"
     if (m_session.is_closed())
@@ -233,42 +446,46 @@ void mp::ZAssocChild::failNotify()
 
     mp::Package *p = new mp::Package(m_session, m_origin);
 
-    mp::ThreadPoolPackage *tp = new mp::ThreadPoolPackage(p, this);
-    p->copy_filter(*m_package);
-    m_thread_pool_observer->put(tp);  
+    ThreadPoolPackage *tp = new ThreadPoolPackage(p, this, m_p);
+    p->copy_route(*m_package);
+    m_thread_pool_observer->cleanup(tp, &m_session);
+    m_thread_pool_observer->put(tp);
 }
 
-void mp::ZAssocChild::timeoutNotify()
+void yf::FrontendNet::ZAssocChild::timeoutNotify()
 {
     failNotify();
 }
 
-void mp::ZAssocChild::connectNotify()
+void yf::FrontendNet::ZAssocChild::connectNotify()
 {
 
 }
 
-mp::ZAssocServer::ZAssocServer(yazpp_1::IPDU_Observable *PDU_Observable,
-                               int timeout, int connect_max)
-    :  Z_Assoc(PDU_Observable), m_session_timeout(timeout),
-       m_connect_max(connect_max)
+yf::FrontendNet::ZAssocServer::ZAssocServer(
+    yazpp_1::IPDU_Observable *PDU_Observable,
+    Port *port,
+    Rep *rep)
+    :
+    Z_Assoc(PDU_Observable), m_port(port), m_p(rep)
 {
     m_package = 0;
 }
 
 
-void mp::ZAssocServer::set_package(const mp::Package *package)
+void yf::FrontendNet::ZAssocServer::set_package(const mp::Package *package)
 {
     m_package = package;
 }
 
-void mp::ZAssocServer::set_thread_pool(ThreadPoolSocketObserver *observer)
+void yf::FrontendNet::ZAssocServer::set_thread_pool(
+    mp::ThreadPoolSocketObserver *observer)
 {
     m_thread_pool_observer = observer;
 }
 
-yazpp_1::IPDU_Observer *mp::ZAssocServer::sessionNotify(yazpp_1::IPDU_Observable
-						 *the_PDU_Observable, int fd)
+yazpp_1::IPDU_Observer *yf::FrontendNet::ZAssocServer::sessionNotify(
+    yazpp_1::IPDU_Observable *the_PDU_Observable, int fd)
 {
 
     const char *peername = the_PDU_Observable->getpeername();
@@ -277,63 +494,118 @@ yazpp_1::IPDU_Observer *mp::ZAssocServer::sessionNotify(yazpp_1::IPDU_Observable
         limit_connect.add_connect(peername);
         limit_connect.cleanup(false);
         int con_sz = limit_connect.get_total(peername);
-        if (m_connect_max && con_sz > m_connect_max)
+        if (m_p->m_connect_max && con_sz > m_p->m_connect_max)
             return 0;
     }
-    mp::ZAssocChild *my =
-	new mp::ZAssocChild(the_PDU_Observable, m_thread_pool_observer,
-                             m_package);
-    my->timeout(m_session_timeout);
+    ZAssocChild *my = new ZAssocChild(the_PDU_Observable,
+                                      m_thread_pool_observer,
+                                      m_package, m_port, m_p, limit_connect);
     return my;
 }
 
-mp::ZAssocServer::~ZAssocServer()
+yf::FrontendNet::ZAssocServer::~ZAssocServer()
+{
+}
+
+void yf::FrontendNet::ZAssocServer::recv_GDU(Z_GDU *apdu, int len)
 {
 }
 
-void mp::ZAssocServer::recv_GDU(Z_GDU *apdu, int len)
+void yf::FrontendNet::ZAssocServer::failNotify()
 {
 }
 
-void mp::ZAssocServer::failNotify()
+void yf::FrontendNet::ZAssocServer::timeoutNotify()
 {
 }
 
-void mp::ZAssocServer::timeoutNotify()
+void yf::FrontendNet::ZAssocServer::connectNotify()
 {
 }
 
-void mp::ZAssocServer::connectNotify()
+yf::FrontendNet::FrontendNet() : m_p(new Rep)
 {
 }
 
-mp::filter::FrontendNet::FrontendNet() : m_p(new Rep)
+yf::FrontendNet::Rep::Rep()
 {
-    m_p->m_no_threads = 5;
-    m_p->m_listen_duration = 0;
-    m_p->m_session_timeout = 300; // 5 minutes
-    m_p->m_connect_max = 0;
-    m_p->az = 0;
+    m_max_threads = m_no_threads = 5;
+    m_stack_size = 0;
+    m_listen_duration = 0;
+    m_session_timeout = 300; // 5 minutes
+    m_connect_max = 0;
+    az = 0;
+    size_t i;
+    for (i = 0; i < 22; i++)
+        m_duration_freq[i] = 0;
+    m_duration_lim[0] = 0.000001;
+    m_duration_lim[1] = 0.00001;
+    m_duration_lim[2] = 0.0001;
+    m_duration_lim[3] = 0.001;
+    m_duration_lim[4] = 0.01;
+    m_duration_lim[5] = 0.1;
+    m_duration_lim[6] = 0.2;
+    m_duration_lim[7] = 0.3;
+    m_duration_lim[8] = 0.5;
+    m_duration_lim[9] = 1.0;
+    m_duration_lim[10] = 1.5;
+    m_duration_lim[11] = 2.0;
+    m_duration_lim[12] = 3.0;
+    m_duration_lim[13] = 4.0;
+    m_duration_lim[14] = 5.0;
+    m_duration_lim[15] = 6.0;
+    m_duration_lim[16] = 8.0;
+    m_duration_lim[17] = 10.0;
+    m_duration_lim[18] = 15.0;
+    m_duration_lim[19] = 20.0;
+    m_duration_lim[20] = 30.0;
+    m_duration_lim[21] = 0.0;
+    m_duration_max = 0.0;
+    m_duration_min = 0.0;
+    m_duration_total = 0.0;
+    m_stop_signo = 0;
 }
 
-mp::filter::FrontendNet::~FrontendNet()
+yf::FrontendNet::Rep::~Rep()
 {
-    if (m_p->az)
+    if (az)
     {
         size_t i;
-        for (i = 0; i<m_p->m_ports.size(); i++)
-            delete m_p->az[i];
-        delete [] m_p->az;
+        for (i = 0; i < m_ports.size(); i++)
+            delete az[i];
+        delete [] az;
+        delete [] pdu;
     }
+    az = 0;
+}
+
+yf::FrontendNet::~FrontendNet()
+{
 }
 
-bool mp::My_Timer_Thread::timeout()
+void yf::FrontendNet::stop(int signo) const
+{
+    m_p->m_stop_signo = signo;
+}
+
+void yf::FrontendNet::start() const
+{
+#if HAVE_GETRLIMIT
+    struct rlimit limit_data;
+    getrlimit(RLIMIT_NOFILE, &limit_data);
+    yaz_log(YLOG_LOG, "getrlimit NOFILE cur=%ld max=%ld",
+            (long) limit_data.rlim_cur, (long) limit_data.rlim_max);
+#endif
+}
+
+bool yf::FrontendNet::My_Timer_Thread::timeout()
 {
     return m_timeout;
 }
 
-mp::My_Timer_Thread::My_Timer_Thread(yazpp_1::ISocketObservable *obs,
-				 int duration) : 
+yf::FrontendNet::My_Timer_Thread::My_Timer_Thread(
+    yazpp_1::ISocketObservable *obs,
+    int duration) :
     m_obs(obs), m_pipe(9123), m_timeout(false)
 {
     obs->addObserver(m_pipe.read_fd(), this);
@@ -341,13 +613,13 @@ mp::My_Timer_Thread::My_Timer_Thread(yazpp_1::ISocketObservable *obs,
     obs->timeoutObserver(this, duration);
 }
 
-void mp::My_Timer_Thread::socketNotify(int event)
+void yf::FrontendNet::My_Timer_Thread::socketNotify(int event)
 {
     m_timeout = true;
     m_obs->deleteObserver(this);
 }
 
-void mp::filter::FrontendNet::process(Package &package) const
+void yf::FrontendNet::process(mp::Package &package) const
 {
     if (m_p->az == 0)
         return;
@@ -357,8 +629,10 @@ void mp::filter::FrontendNet::process(Package &package) const
     if (m_p->m_listen_duration)
         tt = new My_Timer_Thread(&m_p->mySocketManager,
                                  m_p->m_listen_duration);
-    
-    ThreadPoolSocketObserver tp(&m_p->mySocketManager, m_p->m_no_threads);
+
+    ThreadPoolSocketObserver tp(&m_p->mySocketManager, m_p->m_no_threads,
+                                m_p->m_max_threads,
+                                m_p->m_stack_size);
 
     for (i = 0; i<m_p->m_ports.size(); i++)
     {
@@ -367,56 +641,134 @@ void mp::filter::FrontendNet::process(Package &package) const
     }
     while (m_p->mySocketManager.processEvent() > 0)
     {
+        if (m_p->m_stop_signo == SIGTERM)
+        {
+            yaz_log(YLOG_LOG, "metaproxy received SIGTERM");
+            if (m_p->az)
+            {
+                size_t i;
+                for (i = 0; i < m_p->m_ports.size(); i++)
+                {
+                    m_p->pdu[i]->shutdown();
+                    m_p->az[i]->server("");
+                }
+                yaz_daemon_stop();
+            }
+            break; /* stop right away */
+        }
+#ifndef WIN32
+        if (m_p->m_stop_signo == SIGUSR1)
+        {    /* just stop listeners and cont till all sessions are done*/
+            yaz_log(YLOG_LOG, "metaproxy received SIGUSR1");
+            m_p->m_stop_signo = 0;
+            if (m_p->az)
+            {
+                size_t i;
+                for (i = 0; i < m_p->m_ports.size(); i++)
+                    m_p->az[i]->server("");
+                yaz_daemon_stop();
+            }
+        }
+#endif
+        int no = m_p->mySocketManager.getNumberOfObservers();
+        if (no <= 1)
+            break;
 	if (tt && tt->timeout())
 	    break;
     }
     delete tt;
 }
 
-void mp::filter::FrontendNet::configure(const xmlNode * ptr, bool test_only)
+void yf::FrontendNet::configure(const xmlNode * ptr, bool test_only,
+                                const char *path)
 {
     if (!ptr || !ptr->children)
     {
-        throw mp::filter::FilterException("No ports for Frontend");
+        throw yf::FilterException("No ports for Frontend");
     }
-    std::vector<std::string> ports;
+    std::vector<Port> ports;
     for (ptr = ptr->children; ptr; ptr = ptr->next)
     {
         if (ptr->type != XML_ELEMENT_NODE)
             continue;
         if (!strcmp((const char *) ptr->name, "port"))
         {
-            std::string port = mp::xml::get_text(ptr);
+            Port port;
+
+            const char *names[5] = {"route", "max_recv_bytes", "port",
+                                    "cert_fname", 0};
+            std::string values[4];
+
+            mp::xml::parse_attr(ptr, names, values);
+            port.route = values[0];
+            if (values[1].length() > 0)
+                port.max_recv_bytes = atoi(values[1].c_str());
+            else
+                port.max_recv_bytes = 0;
+            if (values[2].length() > 0)
+                port.port = values[2];
+            else
+                port.port = mp::xml::get_text(ptr);
+            port.cert_fname = values[3];
             ports.push_back(port);
-            
         }
         else if (!strcmp((const char *) ptr->name, "threads"))
         {
             std::string threads_str = mp::xml::get_text(ptr);
             int threads = atoi(threads_str.c_str());
             if (threads < 1)
-                throw mp::filter::FilterException("Bad value for threads: " 
+                throw yf::FilterException("Bad value for threads: "
                                                    + threads_str);
             m_p->m_no_threads = threads;
         }
+        else if (!strcmp((const char *) ptr->name, "max-threads"))
+        {
+            std::string threads_str = mp::xml::get_text(ptr);
+            int threads = atoi(threads_str.c_str());
+            if (threads < 1)
+                throw yf::FilterException("Bad value for max-threads: "
+                                                   + threads_str);
+            m_p->m_max_threads = threads;
+        }
+        else if (!strcmp((const char *) ptr->name, "stack-size"))
+        {
+            std::string sz_str = mp::xml::get_text(ptr);
+            int sz = atoi(sz_str.c_str());
+            if (sz < 0)
+                throw yf::FilterException("Bad value for stack-size: "
+                                                   + sz_str);
+            m_p->m_stack_size = sz * 1024;
+        }
         else if (!strcmp((const char *) ptr->name, "timeout"))
         {
             std::string timeout_str = mp::xml::get_text(ptr);
             int timeout = atoi(timeout_str.c_str());
             if (timeout < 1)
-                throw mp::filter::FilterException("Bad value for timeout: " 
+                throw yf::FilterException("Bad value for timeout: "
                                                    + timeout_str);
             m_p->m_session_timeout = timeout;
         }
         else if (!strcmp((const char *) ptr->name, "connect-max"))
         {
-            m_p->m_connect_max = mp::xml::get_int(ptr->children, 0);
+            m_p->m_connect_max = mp::xml::get_int(ptr, 0);
+        }
+        else if (!strcmp((const char *) ptr->name, "http-req-max"))
+        {
+            m_p->m_http_req_max = mp::xml::get_int(ptr, 0);
+        }
+        else if (!strcmp((const char *) ptr->name, "message"))
+        {
+            m_p->m_msg_config = mp::xml::get_text(ptr);
+        }
+        else if (!strcmp((const char *) ptr->name, "stat-req"))
+        {
+            m_p->m_stat_req = mp::xml::get_text(ptr);
         }
         else
         {
-            throw mp::filter::FilterException("Bad element " 
-                                               + std::string((const char *)
-                                                             ptr->name));
+            throw yf::FilterException("Bad element "
+                                      + std::string((const char *)
+                                                    ptr->name));
         }
     }
     if (test_only)
@@ -424,39 +776,66 @@ void mp::filter::FrontendNet::configure(const xmlNode * ptr, bool test_only)
     set_ports(ports);
 }
 
-void mp::filter::FrontendNet::set_ports(std::vector<std::string> &ports)
+void yf::FrontendNet::set_ports(std::vector<std::string> &ports)
+{
+    std::vector<Port> nports;
+    size_t i;
+
+    for (i = 0; i < ports.size(); i++)
+    {
+        Port nport;
+
+        nport.port = ports[i];
+
+        nports.push_back(nport);
+    }
+    set_ports(nports);
+}
+
+
+void yf::FrontendNet::set_ports(std::vector<Port> &ports)
 {
     m_p->m_ports = ports;
-    
-    m_p->az = new mp::ZAssocServer *[m_p->m_ports.size()];
-    
-    // Create mp::ZAssocServer for each port
+
+    m_p->az = new yf::FrontendNet::ZAssocServer *[m_p->m_ports.size()];
+    m_p->pdu = new yazpp_1::PDU_Assoc *[m_p->m_ports.size()];
+
+    // Create yf::FrontendNet::ZAssocServer for each port
     size_t i;
-    for (i = 0; i<m_p->m_ports.size(); i++)
+    for (i = 0; i < m_p->m_ports.size(); i++)
+        m_p->az[i] = 0;
+    for (i = 0; i < m_p->m_ports.size(); i++)
     {
-        // create a PDU assoc object (one per mp::ZAssocServer)
+        // create a PDU assoc object (one per yf::FrontendNet::ZAssocServer)
         yazpp_1::PDU_Assoc *as = new yazpp_1::PDU_Assoc(&m_p->mySocketManager);
-        
+
+        if (m_p->m_ports[i].cert_fname.length())
+            as->set_cert_fname(m_p->m_ports[i].cert_fname.c_str());
         // create ZAssoc with PDU Assoc
-        m_p->az[i] = new mp::ZAssocServer(as, 
-                                          m_p->m_session_timeout,
-                                          m_p->m_connect_max);
-        if (m_p->az[i]->server(m_p->m_ports[i].c_str()))
+        m_p->pdu[i] = as;
+        m_p->az[i] = new yf::FrontendNet::ZAssocServer(
+            as, &m_p->m_ports[i], m_p.get());
+        if (m_p->az[i]->server(m_p->m_ports[i].port.c_str()))
         {
-            throw mp::filter::FilterException("Unable to bind to address " 
-                                              + std::string(m_p->m_ports[i]));
+            throw yf::FilterException("Unable to bind to address "
+                                      + std::string(m_p->m_ports[i].port));
         }
+        COMSTACK cs = as->get_comstack();
+
+        if (cs && m_p->m_ports[i].max_recv_bytes)
+            cs_set_max_recv_bytes(cs, m_p->m_ports[i].max_recv_bytes);
+
     }
 }
 
-void mp::filter::FrontendNet::set_listen_duration(int d)
+void yf::FrontendNet::set_listen_duration(int d)
 {
     m_p->m_listen_duration = d;
 }
 
-static mp::filter::Base* filter_creator()
+static yf::Base* filter_creator()
 {
-    return new mp::filter::FrontendNet;
+    return new yf::FrontendNet;
 }
 
 extern "C" {