Handle callback errors in bfstreams.

[stg.git] / projects / stargazer / plugins / other / smux / smux.cpp

diff --git a/projects/stargazer/plugins/other/smux/smux.cpp b/projects/stargazer/plugins/other/smux/smux.cpp
index 01d9bb2151406b1d4d85aaf52fcd189a1bbdbbfe..09cb4636795b1f72d567dc6274e2d74f788a2fad 100644 (file)
--- a/projects/stargazer/plugins/other/smux/smux.cpp
+++ b/projects/stargazer/plugins/other/smux/smux.cpp
@@ -6,296 +6,47 @@
 #include <cerrno>
 #include <ctime>
 #include <csignal>
 #include <cerrno>
 #include <ctime>
 #include <csignal>

+#include <cassert>

 
 #include <vector>
 #include <algorithm>
 
 #include <vector>
 #include <algorithm>

-
-#include "asn1/OpenPDU.h"
-#include "asn1/ClosePDU.h"
-#include "asn1/RReqPDU.h"
-#include "asn1/GetRequest-PDU.h"
-#include "asn1/GetResponse-PDU.h"
-#include "asn1/VarBindList.h"
-#include "asn1/VarBind.h"
-#include "asn1/OBJECT_IDENTIFIER.h"
-#include "asn1/ber_decoder.h"
-#include "asn1/der_encoder.h"
+#include <iterator>
+#include <stdexcept>
+#include <utility>

 
 #include "stg/common.h"
 
 #include "stg/common.h"

+#include "stg/plugin_creator.h"

 
 #include "smux.h"
 
 #include "smux.h"

+#include "utils.h"

 
 

-bool WaitPackets(int sd);
-
-std::string OI2String(OBJECT_IDENTIFIER_t * oi)
-{
-std::string res;
-
-int arcs[1024];
-int count = OBJECT_IDENTIFIER_get_arcs(oi, arcs, sizeof(arcs[0]), 1024);
-
-if (count > 1024)
-    return "";
-
-for (int i = 0; i < count; ++i)
-    {
-    res += ".";
-    std::string arc;
-    strprintf(&arc, "%d", arcs[i]);
-    res += arc;
-    }
-
-return res;
-}
-
-bool String2OI(const std::string & str, OBJECT_IDENTIFIER_t * oi)
+namespace

 {
 {

-size_t left = 0, pos = 0, arcPos = 0;
-int arcs[1024];
-pos = str.find_first_of('.', left);
-if (pos == 0)
-    {
-    left = 1;
-    pos = str.find_first_of('.', left);
-    }
-while (pos != std::string::npos)
-    {
-    int arc = 0;
-    if (str2x(str.substr(left, left - pos), arc))
-        {
-        return false;
-        }
-    arcs[arcPos++] = arc;
-    left = pos + 1;
-    pos = str.find_first_of('.', left);
-    }
-if (left < str.length())
-    {
-    int arc = 0;
-    if (str2x(str.substr(left, left - pos), arc))
-        {
-        return false;
-        }
-    arcs[arcPos++] = arc;
-    }
-printfd(__FILE__, "String2OI() - arcPos: %d\n", arcPos);
-OBJECT_IDENTIFIER_set_arcs(oi, arcs, sizeof(arcs[0]), arcPos);
-return true;
-}
-
-class SMUX_CREATOR
-{
-private:
-    SMUX * smux;
-
-public:
-    SMUX_CREATOR() : smux(new SMUX()) {}
-    ~SMUX_CREATOR() { delete smux; }
-
-    SMUX * GetPlugin() { return smux; }
-};
+PLUGIN_CREATOR<SMUX> smc;

 
 

-SMUX_CREATOR sac;
+bool SPrefixLess(const Sensors::value_type & a,
+                 const Sensors::value_type & b);

 
 

-PLUGIN * GetPlugin()
+bool SPrefixLess(const Sensors::value_type & a,
+                 const Sensors::value_type & b)

 {
 {

-return sac.GetPlugin();
+return a.first.PrefixLess(b.first);

 }
 
 }
 

-int SendOpenPDU(int fd)
-{
-const char * description = "Stg SMUX Plugin";
-//int oid[] = {1, 3, 6, 1, 4, 1, 38313, 1, 5, 2, 1, 1};
-asn_enc_rval_t error;
-OpenPDU_t msg;
-
-memset(&msg, 0, sizeof(msg));
-
-msg.present = OpenPDU_PR_simple;
-asn_long2INTEGER(&msg.choice.simple.version, SimpleOpen__version_version_1);
-if (!String2OI(".1.3.6.1.4.1.38313", &msg.choice.simple.identity))
-    {
-    printfd(__FILE__,
-            "SendOpenPDU() - failed to convert string to OBJECT_IDENTIFIER\n");
-    return -1;
-    }
-OCTET_STRING_fromString(&msg.choice.simple.description, description);
-OCTET_STRING_fromString(&msg.choice.simple.password, "");
-
-char buffer[1024];
-error = der_encode_to_buffer(&asn_DEF_OpenPDU, &msg, buffer, sizeof(buffer));
-
-if (error.encoded == -1)
-    {
-    printfd(__FILE__, "Could not encode OpenPDU (at %s)\n",
-            error.failed_type ? error.failed_type->name : "unknown");
-    return -1;
-    }
-else
-    {
-    write(fd, buffer, error.encoded);
-    printfd(__FILE__, "OpenPDU encoded successfully to %d bytes\n",
-            error.encoded);
-    }
-return 0;

 }
 
 }
 

-int SendClosePDU(int fd)
-{
-ClosePDU_t msg;
-
-memset(&msg, 0, sizeof(msg));
+extern "C" PLUGIN * GetPlugin();

 
 

-asn_long2INTEGER(&msg, ClosePDU_goingDown);
-
-char buffer[1024];
-asn_enc_rval_t error;
-error = der_encode_to_buffer(&asn_DEF_ClosePDU, &msg, buffer, sizeof(buffer));
-
-if (error.encoded == -1)
-    {
-    printfd(__FILE__, "Could not encode ClosePDU (at %s)\n",
-            error.failed_type ? error.failed_type->name : "unknown");
-    return -1;
-    }
-else
-    {
-    write(fd, buffer, error.encoded);
-    printfd(__FILE__, "ClosePDU encoded successfully\n");
-    }
-return 0;
-}
-
-int SendRReqPDU(int fd)
-{
-int oid[] = {1, 3, 6, 1, 4, 1, 38313, 1};
-asn_enc_rval_t error;
-RReqPDU_t msg;
-
-memset(&msg, 0, sizeof(msg));
-
-msg.priority = 0;
-asn_long2INTEGER(&msg.operation, RReqPDU__operation_readOnly);
-OBJECT_IDENTIFIER_set_arcs(&msg.subtree,
-                           oid,
-                           sizeof(oid[0]),
-                           8);
-
-char buffer[1024];
-error = der_encode_to_buffer(&asn_DEF_RReqPDU, &msg, buffer, sizeof(buffer));
-
-if (error.encoded == -1)
-    {
-    printfd(__FILE__, "Could not encode RReqPDU (at %s)\n",
-            error.failed_type ? error.failed_type->name : "unknown");
-    return -1;
-    }
-else
-    {
-    write(fd, buffer, error.encoded);
-    printfd(__FILE__, "RReqPDU encoded successfully to %d bytes\n",
-            error.encoded);
-    }
-return 0;
-}
-
-int SendGetResponsePDU(int fd, GetResponse_PDU_t * getResponse)
-{
-asn_enc_rval_t error;
-
-char buffer[1024];
-error = der_encode_to_buffer(&asn_DEF_GetResponse_PDU, getResponse, buffer,
-                             sizeof(buffer));
-
-if (error.encoded == -1)
-    {
-    printfd(__FILE__, "Could not encode GetResponsePDU (at %s)\n",
-            error.failed_type ? error.failed_type->name : "unknown");
-    return -1;
-    }
-else
-    {
-    write(fd, buffer, error.encoded);
-    printfd(__FILE__, "GetResponsePDU encoded successfully to %d bytes\n",
-            error.encoded);
-    }
-return 0;
-}
-
-int SendGetResponseErrorPDU(int fd,
-                            const PDU_t * getRequest,
-                            int errorStatus,
-                            int errorIndex)
-{
-asn_enc_rval_t error;
-GetResponse_PDU_t msg;
-
-memset(&msg, 0, sizeof(msg));
-
-msg.request_id = getRequest->request_id;
-asn_long2INTEGER(&msg.error_status, errorStatus);
-asn_long2INTEGER(&msg.error_index, errorIndex);
-
-char buffer[1024];
-error = der_encode_to_buffer(&asn_DEF_GetResponse_PDU, &msg, buffer,
-                             sizeof(buffer));
-
-if (error.encoded == -1)
-    {
-    printfd(__FILE__, "Could not encode GetResponsePDU for error (at %s)\n",
-            error.failed_type ? error.failed_type->name : "unknown");
-    return -1;
-    }
-else
-    {
-    write(fd, buffer, error.encoded);
-    printfd(__FILE__,
-            "GetResponsePDU for error encoded successfully to %d bytes\n",
-            error.encoded);
-    }
-return 0;
-}
-
-SMUX_PDUs_t * RecvSMUXPDUs(int fd)
+PLUGIN * GetPlugin()

 {
 {

-char buffer[1024];
-SMUX_PDUs_t * pdus = NULL;
-
-memset(buffer, 0, sizeof(buffer));
-
-size_t length = read(fd, buffer, sizeof(buffer));
-if (length < 1)
-    return NULL;
-asn_dec_rval_t error;
-error = ber_decode(0, &asn_DEF_SMUX_PDUs, (void **)&pdus, buffer, length);
-if(error.code != RC_OK)
-    {
-    printfd(__FILE__, "Failed to decode PDUs at byte %ld\n",
-            (long)error.consumed);
-    return NULL;
-    }
-return pdus;
-}
-
-int ParseIntInRange(const std::string & str,
-                    int min,
-                    int max,
-                    int * val)
-{
-if (str2x(str.c_str(), *val))
-    {
-    return -1;
-    }
-if (*val < min || *val > max)
-    {
-    return -1;
-    }
-return 0;
+return smc.GetPlugin();

 }
 
 SMUX_SETTINGS::SMUX_SETTINGS()
 }
 
 SMUX_SETTINGS::SMUX_SETTINGS()

-    : ip(0),
-      port(0)
+    : errorStr(),
+      ip(0),
+      port(0),
+      password()

 {}
 
 int SMUX_SETTINGS::ParseSettings(const MODULE_SETTINGS & s)
 {}
 
 int SMUX_SETTINGS::ParseSettings(const MODULE_SETTINGS & s)


@@ -303,7 +54,7 @@ int SMUX_SETTINGS::ParseSettings(const MODULE_SETTINGS & s)
 PARAM_VALUE pv;
 std::vector<PARAM_VALUE>::const_iterator pvi;
 int p;
 PARAM_VALUE pv;
 std::vector<PARAM_VALUE>::const_iterator pvi;
 int p;

-///////////////////////////
+

 pv.param = "Port";
 pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv);
 if (pvi == s.moduleParams.end())
 pv.param = "Port";
 pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv);
 if (pvi == s.moduleParams.end())


@@ -318,7 +69,7 @@ if (ParseIntInRange(pvi->value[0], 2, 65535, &p))
     printfd(__FILE__, "Cannot parse parameter 'Port'\n");
     return -1;
     }
     printfd(__FILE__, "Cannot parse parameter 'Port'\n");
     return -1;
     }

-port = p;
+port = static_cast<uint16_t>(p);

 
 pv.param = "Password";
 pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv);
 
 pv.param = "Password";
 pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv);


@@ -350,9 +101,30 @@ SMUX::SMUX()
     : PLUGIN(),
       users(NULL),
       tariffs(NULL),
     : PLUGIN(),
       users(NULL),
       tariffs(NULL),

+      admins(NULL),
+      services(NULL),
+      corporations(NULL),
+      traffcounter(NULL),
+      errorStr(),
+      smuxSettings(),
+      settings(),
+      thread(),
+      mutex(),

       running(false),
       stopped(true),
       running(false),
       stopped(true),

-      sock(-1)
+      needReconnect(false),
+      lastReconnectTry(0),
+      reconnectTimeout(1),
+      sock(-1),
+      smuxHandlers(),
+      pdusHandlers(),
+      sensors(),
+      tables(),
+      notifiers(),
+      addUserNotifier(*this),
+      delUserNotifier(*this),
+      addDelTariffNotifier(*this),
+      logger(GetPluginLogger(GetStgLogger(), "smux"))

 {
 pthread_mutex_init(&mutex, NULL);
 
 {
 pthread_mutex_init(&mutex, NULL);
 


@@ -368,9 +140,16 @@ pdusHandlers[PDUs_PR_set_request] = &SMUX::SetRequestHandler;
 
 SMUX::~SMUX()
 {
 
 SMUX::~SMUX()
 {

-Sensors::iterator it;
-for (it = sensors.begin(); it != sensors.end(); ++it)
-    delete it->second;
+    {
+    Sensors::iterator it;
+    for (it = sensors.begin(); it != sensors.end(); ++it)
+        delete it->second;
+    }
+    {
+    Tables::iterator it;
+    for (it = tables.begin(); it != tables.end(); ++it)
+        delete it->second;
+    }

 printfd(__FILE__, "SMUX::~SMUX()\n");
 pthread_mutex_destroy(&mutex);
 }
 printfd(__FILE__, "SMUX::~SMUX()\n");
 pthread_mutex_destroy(&mutex);
 }


@@ -382,29 +161,63 @@ return smuxSettings.ParseSettings(settings);
 
 int SMUX::Start()
 {
 
 int SMUX::Start()
 {

+assert(users != NULL && "users must not be NULL");
+assert(tariffs != NULL && "tariffs must not be NULL");
+assert(admins != NULL && "admins must not be NULL");
+assert(services != NULL && "services must not be NULL");
+assert(corporations != NULL && "corporations must not be NULL");
+assert(traffcounter != NULL && "traffcounter must not be NULL");
+

 if (PrepareNet())
 if (PrepareNet())

-    return -1;
+    needReconnect = true;

 
 // Users
 
 // Users

-sensors[".1.3.6.1.4.1.38313.1.1.1"] = new TotalUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.2"] = new ConnectedUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.3"] = new AuthorizedUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.4"] = new AlwaysOnlineUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.5"] = new NoCashUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.7"] = new DisabledDetailStatsUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.8"] = new DisabledUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.9"] = new PassiveUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.10"] = new CreditUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.11"] = new FreeMbUsersSensor(*users);
-sensors[".1.3.6.1.4.1.38313.1.1.12"] = new TariffChangeUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.1")] = new TotalUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.2")] = new ConnectedUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.3")] = new AuthorizedUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.4")] = new AlwaysOnlineUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.5")] = new NoCashUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.6")] = new DisabledDetailStatsUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.7")] = new DisabledUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.8")] = new PassiveUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.9")] = new CreditUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.10")] = new FreeMbUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.11")] = new TariffChangeUsersSensor(*users);
+sensors[OID(".1.3.6.1.4.1.38313.1.1.12")] = new ActiveUsersSensor(*users);

 // Tariffs
 // Tariffs

-sensors[".1.3.6.1.4.1.38313.1.2.1"] = new TotalTariffsSensor(*tariffs);
+sensors[OID(".1.3.6.1.4.1.38313.1.2.1")] = new TotalTariffsSensor(*tariffs);
+// Admins
+sensors[OID(".1.3.6.1.4.1.38313.1.3.1")] = new TotalAdminsSensor(*admins);
+// Services
+sensors[OID(".1.3.6.1.4.1.38313.1.4.1")] = new TotalServicesSensor(*services);
+// Corporations
+sensors[OID(".1.3.6.1.4.1.38313.1.5.1")] = new TotalCorporationsSensor(*corporations);
+// Traffcounter
+sensors[OID(".1.3.6.1.4.1.38313.1.6.1")] = new TotalRulesSensor(*traffcounter);
+
+// Table data
+tables[".1.3.6.1.4.1.38313.1.2.2"] = new TariffUsersTable(".1.3.6.1.4.1.38313.1.2.2", *tariffs, *users);
+
+UpdateTables();
+SetNotifiers();
+
+#ifdef SMUX_DEBUG
+Sensors::const_iterator it(sensors.begin());
+while (it != sensors.end())
+    {
+    printfd(__FILE__, "%s = %s\n",
+            it->first.ToString().c_str(),
+            it->second->ToString().c_str());
+    ++it;
+    }
+#endif

 
 if (!running)
     {
     if (pthread_create(&thread, NULL, Runner, this))
         {
         errorStr = "Cannot create thread.";
 
 if (!running)
     {
     if (pthread_create(&thread, NULL, Runner, this))
         {
         errorStr = "Cannot create thread.";

+       logger("Cannot create thread.");

         printfd(__FILE__, "Cannot create thread\n");
         return -1;
         }
         printfd(__FILE__, "Cannot create thread\n");
         return -1;
         }


@@ -426,31 +239,59 @@ if (!stopped)
         struct timespec ts = {0, 200000000};
         nanosleep(&ts, NULL);
         }
         struct timespec ts = {0, 200000000};
         nanosleep(&ts, NULL);
         }

+    }

 
 

-    //after 5 seconds waiting thread still running. now killing it
-    if (!stopped)
-        {
-        printfd(__FILE__, "SMUX::Stop() - failed to stop thread, killing it\n");
-        if (pthread_kill(thread, SIGINT))
-            {
-            errorStr = "Cannot kill thread.";
-            printfd(__FILE__, "SMUX::Stop() - Cannot kill thread\n");
-            return -1;
-            }
-        printfd(__FILE__, "SMUX::Stop() -  killed Run\n");
-        }
+if (stopped)
+    pthread_join(thread, NULL);
+
+ResetNotifiers();
+
+    {
+    Tables::iterator it;
+    for (it = tables.begin(); it != tables.end(); ++it)
+        delete it->second;
+    }
+    {
+    Sensors::iterator it;
+    for (it = sensors.begin(); it != sensors.end(); ++it)
+        delete it->second;

     }
 
     }
 

-pthread_join(thread, NULL);
+tables.erase(tables.begin(), tables.end());
+sensors.erase(sensors.begin(), sensors.end());

 
 close(sock);
 
 
 close(sock);
 

+if (!stopped)
+    {
+    running = true;
+    return -1;
+    }
+

 printfd(__FILE__, "SMUX::Stop() - After\n");
 return 0;
 }
 
 printfd(__FILE__, "SMUX::Stop() - After\n");
 return 0;
 }
 

+int SMUX::Reload()
+{
+if (Stop())
+    return -1;
+if (Start())
+    return -1;
+if (!needReconnect)
+    {
+    printfd(__FILE__, "SMUX reconnected succesfully.\n");
+    logger("Reconnected successfully.");
+    }
+return 0;
+}
+

 void * SMUX::Runner(void * d)
 {
 void * SMUX::Runner(void * d)
 {

+sigset_t signalSet;
+sigfillset(&signalSet);
+pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
+

 SMUX * smux = static_cast<SMUX *>(d);
 
 smux->Run();
 SMUX * smux = static_cast<SMUX *>(d);
 
 smux->Run();


@@ -460,18 +301,29 @@ return NULL;
 
 void SMUX::Run()
 {
 
 void SMUX::Run()
 {

-SendOpenPDU(sock);
-SendRReqPDU(sock);
+stopped = true;
+if (!SendOpenPDU(sock))
+    needReconnect = true;
+if (!SendRReqPDU(sock))
+    needReconnect = true;

 running = true;
 stopped = false;
 running = true;
 stopped = false;

+

 while(running)
     {
 while(running)
     {

-    if (WaitPackets(sock))
+    if (WaitPackets(sock) && !needReconnect)

         {
         SMUX_PDUs_t * pdus = RecvSMUXPDUs(sock);
         if (pdus)
         {
         SMUX_PDUs_t * pdus = RecvSMUXPDUs(sock);
         if (pdus)

+            {

             DispatchPDUs(pdus);
             DispatchPDUs(pdus);

+            ASN_STRUCT_FREE(asn_DEF_SMUX_PDUs, pdus);
+            }
+        else if (running)
+            Reconnect();

         }
         }

+    else if (running && needReconnect)
+        Reconnect();

     if (!running)
         break;
     }
     if (!running)
         break;
     }


@@ -486,6 +338,7 @@ sock = socket(AF_INET, SOCK_STREAM, 0);
 if (sock < 0)
     {
     errorStr = "Cannot create socket.";
 if (sock < 0)
     {
     errorStr = "Cannot create socket.";

+    logger("Cannot create a socket: %s", strerror(errno));

     printfd(__FILE__, "Cannot create socket\n");
     return true;
     }
     printfd(__FILE__, "Cannot create socket\n");
     return true;
     }


@@ -499,6 +352,7 @@ addr.sin_addr.s_addr = smuxSettings.GetIP();
 if (connect(sock, reinterpret_cast<struct sockaddr *>(&addr), sizeof(addr)))
     {
     errorStr = "Cannot connect.";
 if (connect(sock, reinterpret_cast<struct sockaddr *>(&addr), sizeof(addr)))
     {
     errorStr = "Cannot connect.";

+    logger("Cannot connect the socket: %s", strerror(errno));

     printfd(__FILE__, "Cannot connect. Message: '%s'\n", strerror(errno));
     return true;
     }
     printfd(__FILE__, "Cannot connect. Message: '%s'\n", strerror(errno));
     return true;
     }


@@ -506,42 +360,41 @@ if (connect(sock, reinterpret_cast<struct sockaddr *>(&addr), sizeof(addr)))
 return false;
 }
 
 return false;
 }
 

-bool WaitPackets(int sd)
+bool SMUX::Reconnect()

 {
 {

-fd_set rfds;
-FD_ZERO(&rfds);
-FD_SET(sd, &rfds);
-
-struct timeval tv;
-tv.tv_sec = 0;
-tv.tv_usec = 500000;
+if (needReconnect && difftime(time(NULL), lastReconnectTry) < reconnectTimeout)
+    return true;

 
 

-int res = select(sd + 1, &rfds, NULL, NULL, &tv);
-if (res == -1) // Error
-    {
-    if (errno != EINTR)
-        {
-        printfd(__FILE__, "Error on select: '%s'\n", strerror(errno));
-        }
-    return false;
-    }
+time(&lastReconnectTry);
+SendClosePDU(sock);
+close(sock);
+if (!PrepareNet())
+    if (SendOpenPDU(sock))
+        if (SendRReqPDU(sock))
+            {
+            reconnectTimeout = 1;
+            needReconnect = false;
+            logger("Connected successfully");
+            printfd(__FILE__, "Connected successfully\n");
+            return false;
+            }

 
 

-if (res == 0) // Timeout
-    {
-    return false;
-    }
+if (needReconnect)
+    if (reconnectTimeout < 60)
+        reconnectTimeout *= 2;

 
 

+needReconnect = true;

 return true;
 }
 
 bool SMUX::DispatchPDUs(const SMUX_PDUs_t * pdus)
 {
 return true;
 }
 
 bool SMUX::DispatchPDUs(const SMUX_PDUs_t * pdus)
 {

-SMUXHandlers::iterator it;
-it = smuxHandlers.find(pdus->present);
+SMUXHandlers::iterator it(smuxHandlers.find(pdus->present));

 if (it != smuxHandlers.end())
     {
     return (this->*(it->second))(pdus);
     }
 if (it != smuxHandlers.end())
     {
     return (this->*(it->second))(pdus);
     }

+#ifdef SMUX_DEBUG

 else
     {
     switch (pdus->present)
 else
     {
     switch (pdus->present)


@@ -560,5 +413,117 @@ else
         }
     asn_fprint(stderr, &asn_DEF_SMUX_PDUs, pdus);
     }
         }
     asn_fprint(stderr, &asn_DEF_SMUX_PDUs, pdus);
     }

+#endif

 return false;
 }
 return false;
 }

+
+bool SMUX::UpdateTables()
+{
+Sensors newSensors;
+bool done = true;
+Tables::iterator it(tables.begin());
+while (it != tables.end())
+    {
+    try
+        {
+        it->second->UpdateSensors(newSensors);
+        }
+    catch (const std::runtime_error & ex)
+        {
+        printfd(__FILE__,
+                "SMUX::UpdateTables - failed to update table '%s': '%s'\n",
+                it->first.c_str(), ex.what());
+        done = false;
+        break;
+        }
+    ++it;
+    }
+if (!done)
+    {
+    Sensors::iterator it(newSensors.begin());
+    while (it != newSensors.end())
+        {
+        delete it->second;
+        ++it;
+        }
+    return false;
+    }
+
+it = tables.begin();
+while (it != tables.end())
+    {
+    std::pair<Sensors::iterator, Sensors::iterator> res;
+    res = std::equal_range(sensors.begin(),
+                           sensors.end(),
+                           std::pair<OID, Sensor *>(OID(it->first), NULL),
+                           SPrefixLess);
+    Sensors::iterator sit(res.first);
+    while (sit != res.second)
+        {
+        delete sit->second;
+        ++sit;
+        }
+    sensors.erase(res.first, res.second);
+    ++it;
+    }
+
+sensors.insert(newSensors.begin(), newSensors.end());
+
+return true;
+}
+
+void SMUX::SetNotifier(USER_PTR userPtr)
+{
+notifiers.push_back(CHG_AFTER_NOTIFIER(*this, userPtr));
+userPtr->GetProperty().tariffName.AddAfterNotifier(&notifiers.back());
+}
+
+void SMUX::UnsetNotifier(USER_PTR userPtr)
+{
+std::list<CHG_AFTER_NOTIFIER>::iterator it = notifiers.begin();
+while (it != notifiers.end())
+    {
+    if (it->GetUserPtr() == userPtr)
+        {
+        userPtr->GetProperty().tariffName.DelAfterNotifier(&(*it));
+        notifiers.erase(it);
+        break;
+        }
+    ++it;
+    }
+}
+
+void SMUX::SetNotifiers()
+{
+int h = users->OpenSearch();
+assert(h && "USERS::OpenSearch is always correct");
+
+USER_PTR u;
+while (!users->SearchNext(h, &u))
+    SetNotifier(u);
+
+users->CloseSearch(h);
+
+users->AddNotifierUserAdd(&addUserNotifier);
+users->AddNotifierUserDel(&delUserNotifier);
+
+tariffs->AddNotifierAdd(&addDelTariffNotifier);
+tariffs->AddNotifierDel(&addDelTariffNotifier);
+}
+
+void SMUX::ResetNotifiers()
+{
+tariffs->DelNotifierDel(&addDelTariffNotifier);
+tariffs->DelNotifierAdd(&addDelTariffNotifier);
+
+users->DelNotifierUserDel(&delUserNotifier);
+users->DelNotifierUserAdd(&addUserNotifier);
+
+std::list<CHG_AFTER_NOTIFIER>::iterator it(notifiers.begin());
+while (it != notifiers.end())
+    {
+    it->GetUserPtr()->GetProperty().tariffName.DelAfterNotifier(&(*it));
+    ++it;
+    }
+notifiers.clear();
+}