New signal handling infrastructure. Prevent unloading running module.

[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 4629aeab236b97777e051bd09890918922938b27..5367e249b00c739fb548d772f852ae9f6789d8f0 100644 (file)
--- a/projects/stargazer/plugins/other/smux/smux.cpp
+++ b/projects/stargazer/plugins/other/smux/smux.cpp
@@ -6,9 +6,13 @@
 #include <cerrno>
 #include <ctime>
 #include <csignal>
 #include <cerrno>
 #include <ctime>
 #include <csignal>

+#include <cassert>

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

+#include <iterator>
+#include <stdexcept>
+#include <utility>

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


@@ -16,16 +20,24 @@
 #include "smux.h"
 #include "utils.h"
 
 #include "smux.h"
 #include "utils.h"
 

-PLUGIN_CREATOR<SMUX> sac;
+PLUGIN_CREATOR<SMUX> smc;

 
 PLUGIN * GetPlugin()
 {
 
 PLUGIN * GetPlugin()
 {

-return sac.GetPlugin();
+return smc.GetPlugin();
+}
+
+bool SPrefixLess(const Sensors::value_type & a,
+                 const Sensors::value_type & b)
+{
+return a.first.PrefixLess(b.first);

 }
 
 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)


@@ -33,7 +45,7 @@ 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())


@@ -80,9 +92,26 @@ 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)
+      sock(-1),
+      smuxHandlers(),
+      pdusHandlers(),
+      sensors(),
+      tables(),
+      notifiers(),
+      addUserNotifier(*this),
+      delUserNotifier(*this),
+      addDelTariffNotifier(*this)

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


@@ -98,9 +127,16 @@ 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);
 }


@@ -112,23 +148,55 @@ 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())
     return -1;
 
 // Users
 if (PrepareNet())
     return -1;
 
 // 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);

 // 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 (!running)
     {


@@ -173,14 +241,43 @@ if (!stopped)
 
 pthread_join(thread, NULL);
 
 
 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;
+    }
+
+tables.erase(tables.begin(), tables.end());
+sensors.erase(sensors.begin(), sensors.end());
+

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

+int SMUX::Reload()
+{
+if (Stop())
+    return -1;
+if (Start())
+    return -1;
+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();


@@ -190,17 +287,24 @@ return NULL;
 
 void SMUX::Run()
 {
 
 void SMUX::Run()
 {

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

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

+

 while(running)
     {
     if (WaitPackets(sock))
         {
         SMUX_PDUs_t * pdus = RecvSMUXPDUs(sock);
         if (pdus)
 while(running)
     {
     if (WaitPackets(sock))
         {
         SMUX_PDUs_t * pdus = RecvSMUXPDUs(sock);
         if (pdus)

+            {

             DispatchPDUs(pdus);
             DispatchPDUs(pdus);

+            ASN_STRUCT_FREE(asn_DEF_SMUX_PDUs, pdus);
+            }

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


@@ -246,6 +350,7 @@ if (it != smuxHandlers.end())
     }
 else
     {
     }
 else
     {

+#ifdef SMUX_DEBUG

     switch (pdus->present)
         {
         case SMUX_PDUs_PR_NOTHING:
     switch (pdus->present)
         {
         case SMUX_PDUs_PR_NOTHING:


@@ -261,6 +366,122 @@ else
             printfd(__FILE__, "PDUs: undefined\n");
         }
     asn_fprint(stderr, &asn_DEF_SMUX_PDUs, pdus);
             printfd(__FILE__, "PDUs: undefined\n");
         }
     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;
+    }
+}
+
+void CHG_AFTER_NOTIFIER::Notify(const std::string &, const std::string &)
+{
+smux.UpdateTables();
+}