Moved handling remote timers into cSVDRPClientHandler::ProcessConnections()

HISTORY

@@ -9162,7 +9162,7 @@ Video Disk Recorder Revision History
   a subdirectory.
 - SVDRP peering can now be limited to the default SVDRP host (see MANUAL for details).
 
-2018-02-20: Version 2.3.9
+2018-02-25: Version 2.3.9
 
 - Updated the Italian OSD texts (thanks to Diego Pierotto).
 - Updated the Finnish OSD texts (thanks to Rolf Ahrenberg).
@@ -9283,3 +9283,4 @@ Video Disk Recorder Revision History
   SVDRP command CONN instead of using the UDP port with the server's address.
   This change requires that all VDRs that shall take part in a peer-to-peer network need
   to be updated to this version.
+- Moved handling remote timers into cSVDRPClientHandler::ProcessConnections().

menu.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.c 4.61 2018/02/13 09:25:43 kls Exp $
+ * $Id: menu.c 4.62 2018/02/25 13:07:09 kls Exp $
  */
 
 #include "menu.h"
@@ -4184,7 +4184,7 @@ eOSState cMenuSetupMisc::ProcessKey(eKeys Key)
      else {
         LOCK_TIMERS_WRITE;
         Timers->SetExplicitModify();
-        if (Timers->DelRemoteTimers())
+        if (Timers->StoreRemoteTimers(NULL, NULL))
            Timers->SetModified();
         }
      }

svdrp.c

@@ -10,7 +10,7 @@
  * and interact with the Video Disk Recorder - or write a full featured
  * graphical interface that sits on top of an SVDRP connection.
  *
- * $Id: svdrp.c 4.27 2018/02/20 13:28:04 kls Exp $
+ * $Id: svdrp.c 4.28 2018/02/25 13:26:17 kls Exp $
  */
 
 #include "svdrp.h"
@@ -317,6 +317,7 @@ private:
   cFile file;
   int fetchFlags;
   bool connected;
+  bool Send(const char *Command);
   void Close(void);
 public:
   cSVDRPClient(const char *Address, int Port, const char *ServerName, int Timeout);
@@ -324,12 +325,12 @@ public:
   const char *ServerName(void) const { return serverName; }
   const char *Connection(void) const { return serverIpAddress.Connection(); }
   bool HasAddress(const char *Address, int Port) const;
-  bool Send(const char *Command);
   bool Process(cStringList *Response = NULL);
   bool Execute(const char *Command, cStringList *Response = NULL);
   bool Connected(void) const { return connected; }
   void SetFetchFlag(eSvdrpFetchFlags Flag);
   bool HasFetchFlag(eSvdrpFetchFlags Flag);
+  bool GetRemoteTimers(cStringList &Response);
   };
 
 static cPoller SVDRPClientPoller;
@@ -365,9 +366,6 @@ void cSVDRPClient::Close(void)
      SVDRPClientPoller.Del(file, false);
      file.Close();
      socket.Close();
-     LOCK_TIMERS_WRITE;
-     if (Timers)
-        Timers->DelRemoteTimers(serverName);
      }
 }
 
@@ -483,6 +481,14 @@ bool cSVDRPClient::HasFetchFlag(eSvdrpFetchFlags Flag)
   return Result;
 }
 
+bool cSVDRPClient::GetRemoteTimers(cStringList &Response)
+{
+  if (HasFetchFlag(sffTimers))
+     return Execute("LSTT ID", &Response);
+  return false;
+}
+
+
 // --- cSVDRPServerParams ----------------------------------------------------
 
 class cSVDRPServerParams {
@@ -554,20 +560,21 @@ private:
   cMutex mutex;
   int tcpPort;
   cSocket udpSocket;
+  cStateKey timersStateKey;
   cVector<cSVDRPClient *> clientConnections;
+  void SendDiscover(void);
   void HandleClientConnection(void);
   void ProcessConnections(void);
+  cSVDRPClient *GetClientForServer(const char *ServerName);
 protected:
   virtual void Action(void);
 public:
   cSVDRPClientHandler(int TcpPort, int UdpPort);
   virtual ~cSVDRPClientHandler();
-  void SendDiscover(void);
   void AddClient(cSVDRPServerParams &ServerParams, const char *IpAddress);
   bool Execute(const char *ServerName, const char *Command, cStringList *Response = NULL);
   bool GetServerNames(cStringList *ServerNames, eSvdrpFetchFlags FetchFlags = sffNone);
   bool TriggerFetchingTimers(const char *ServerName);
-  cSVDRPClient *GetClientForServer(const char *ServerName);
   };
 
 static cSVDRPClientHandler *SVDRPClientHandler = NULL;
@@ -575,6 +582,7 @@ static cSVDRPClientHandler *SVDRPClientHandler = NULL;
 cSVDRPClientHandler::cSVDRPClientHandler(int TcpPort, int UdpPort)
 :cThread("SVDRP client handler", true)
 ,udpSocket(UdpPort, false)
+,timersStateKey(true)
 {
   tcpPort = TcpPort;
 }
@@ -588,7 +596,6 @@ cSVDRPClientHandler::~cSVDRPClientHandler()
 
 cSVDRPClient *cSVDRPClientHandler::GetClientForServer(const char *ServerName)
 {
-  cMutexLock MutexLock(&mutex);
   for (int i = 0; i < clientConnections.Size(); i++) {
       if (strcmp(clientConnections[i]->ServerName(), ServerName) == 0)
          return clientConnections[i];
@@ -598,17 +605,36 @@ cSVDRPClient *cSVDRPClientHandler::GetClientForServer(const char *ServerName)
 
 void cSVDRPClientHandler::SendDiscover(void)
 {
-  cMutexLock MutexLock(&mutex);
   cString Dgram = cString::sprintf("SVDRP:discover name:%s port:%d vdrversion:%d apiversion:%d timeout:%d%s", Setup.SVDRPHostName, tcpPort, VDRVERSNUM, APIVERSNUM, Setup.SVDRPTimeout, (Setup.SVDRPPeering == spmOnly && *Setup.SVDRPDefaultHost) ? *cString::sprintf(" host:%s", Setup.SVDRPDefaultHost) : "");
   udpSocket.SendDgram(Dgram, udpSocket.Port());
 }
 
 void cSVDRPClientHandler::ProcessConnections(void)
 {
-  cMutexLock MutexLock(&mutex);
+  cString PollTimersCmd;
+  if (cTimers::GetTimersRead(timersStateKey)) {
+     PollTimersCmd = cString::sprintf("POLL %s TIMERS", Setup.SVDRPHostName);
+     timersStateKey.Remove();
+     }
   for (int i = 0; i < clientConnections.Size(); i++) {
-      if (!clientConnections[i]->Process()) {
+      cSVDRPClient *Client = clientConnections[i];
-         delete clientConnections[i];
+      if (Client->Process()) {
+         cStringList RemoteTimers;
+         if (Client->GetRemoteTimers(RemoteTimers)) {
+            cTimers *Timers = cTimers::GetTimersWrite(timersStateKey);
+            bool TimersModified = Timers->StoreRemoteTimers(Client->ServerName(), &RemoteTimers);
+            timersStateKey.Remove(TimersModified);
+            }
+         if (*PollTimersCmd) {
+            if (!Client->Execute(PollTimersCmd))
+               esyslog("ERROR: can't send '%s' to '%s'", *PollTimersCmd, Client->ServerName());
+            }
+         }
+      else {
+         cTimers *Timers = cTimers::GetTimersWrite(timersStateKey);
+         bool TimersModified = Timers->StoreRemoteTimers(Client->ServerName(), NULL);
+         timersStateKey.Remove(TimersModified);
+         delete Client;
          clientConnections.Remove(i);
          i--;
          }
@@ -617,12 +643,11 @@ void cSVDRPClientHandler::ProcessConnections(void)
 
 void cSVDRPClientHandler::AddClient(cSVDRPServerParams &ServerParams, const char *IpAddress)
 {
+  cMutexLock MutexLock(&mutex);
   for (int i = 0; i < clientConnections.Size(); i++) {
-      if (clientConnections[i]->HasAddress(IpAddress, ServerParams.Port())) {
+      if (clientConnections[i]->HasAddress(IpAddress, ServerParams.Port()))
-         dsyslog("SVDRP %s < %s connection to '%s' already exists", Setup.SVDRPHostName, clientConnections[i]->Connection(), clientConnections[i]->ServerName());
          return;
       }
-      }
   if (Setup.SVDRPPeering == spmOnly && strcmp(ServerParams.Name(), Setup.SVDRPDefaultHost) != 0)
      return; // we only want to peer with the default host, but this isn't the default host
   if (ServerParams.Host() && strcmp(ServerParams.Host(), Setup.SVDRPHostName) != 0)
@@ -1294,7 +1319,6 @@ void cSVDRPServer::CmdCONN(const char *Option)
         if (ServerParams.Ok()) {
            clientName = ServerParams.Name();
            Reply(250, "OK"); // must finish this transaction before creating the new client
-           if (!SVDRPClientHandler->GetClientForServer(ServerParams.Name()))
            SVDRPClientHandler->AddClient(ServerParams, clientIpAddress.Address());
            }
         else
@@ -2601,7 +2625,6 @@ void SetSVDRPGrabImageDir(const char *GrabImageDir)
 
 class cSVDRPServerHandler : public cThread {
 private:
-  cMutex mutex;
   bool ready;
   cSocket tcpSocket;
   cVector<cSVDRPServer *> serverConnections;
@@ -2613,7 +2636,6 @@ public:
   cSVDRPServerHandler(int TcpPort);
   virtual ~cSVDRPServerHandler();
   void WaitUntilReady(void);
-  cSVDRPServer *GetServerForClient(const char *ClientName);
   };
 
 static cSVDRPServerHandler *SVDRPServerHandler = NULL;
@@ -2641,7 +2663,6 @@ void cSVDRPServerHandler::WaitUntilReady(void)
 
 void cSVDRPServerHandler::ProcessConnections(void)
 {
-  cMutexLock MutexLock(&mutex);
   for (int i = 0; i < serverConnections.Size(); i++) {
       if (!serverConnections[i]->Process()) {
          delete serverConnections[i];
@@ -2665,7 +2686,6 @@ void cSVDRPServerHandler::Action(void)
      ready = true;
      while (Running()) {
            SVDRPServerPoller.Poll(1000);
-           cMutexLock MutexLock(&mutex);
            HandleServerConnection();
            ProcessConnections();
            }
@@ -2674,16 +2694,6 @@ void cSVDRPServerHandler::Action(void)
      }
 }
 
-cSVDRPServer *cSVDRPServerHandler::GetServerForClient(const char *ClientName)
-{
-  cMutexLock MutexLock(&mutex);
-  for (int i = 0; i < serverConnections.Size(); i++) {
-      if (serverConnections[i]->ClientName() && strcmp(serverConnections[i]->ClientName(), ClientName) == 0)
-         return serverConnections[i];
-      }
-  return NULL;
-}
-
 // --- SVDRP Handler ---------------------------------------------------------
 
 static cMutex SVDRPHandlerMutex;

timers.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: timers.c 4.14 2017/11/12 13:01:22 kls Exp $
+ * $Id: timers.c 4.15 2018/02/25 13:05:03 kls Exp $
  */
 
 #include "timers.h"
@@ -898,15 +898,24 @@ bool cTimers::DeleteExpired(void)
   return TimersModified;
 }
 
-bool cTimers::GetRemoteTimers(const char *ServerName)
+bool cTimers::StoreRemoteTimers(const char *ServerName, const cStringList *RemoteTimers)
 {
+  //TODO handle only new/deleted/modified timers?
   bool Result = false;
-  if (ServerName) {
+  // Delete old remote timers:
-     Result = DelRemoteTimers(ServerName);
+  cTimer *Timer = First();
-     cStringList Response;
+  while (Timer) {
-     if (ExecSVDRPCommand(ServerName, "LSTT ID", &Response)) {
+        cTimer *t = Next(Timer);
-        for (int i = 0; i < Response.Size(); i++) {
+        if (Timer->Remote() && (!ServerName || strcmp(Timer->Remote(), ServerName) == 0)) {
-            const char *s = Response[i];
+           Del(Timer);
+           Result = true;
+           }
+        Timer = t;
+        }
+  // Add new remote timers:
+  if (ServerName && RemoteTimers) {
+     for (int i = 0; i < RemoteTimers->Size(); i++) {
+         const char *s = (*RemoteTimers)[i];
          int Code = SVDRPCode(s);
          if (Code == 250) {
             if (const char *v = SVDRPValue(s)) {
@@ -929,49 +938,10 @@ bool cTimers::GetRemoteTimers(const char *ServerName)
          else if (Code != 550)
             esyslog("ERROR: %s: %s", ServerName, s);
          }
-        return Result;
-        }
-     }
-  else {
-     cStringList ServerNames;
-     if (GetSVDRPServerNames(&ServerNames, sffTimers)) {
-        for (int i = 0; i < ServerNames.Size(); i++)
-            Result |= GetRemoteTimers(ServerNames[i]);
-        }
      }
   return Result;
 }
 
-bool cTimers::DelRemoteTimers(const char *ServerName)
-{
-  bool Deleted = false;
-  cTimer *Timer = First();
-  while (Timer) {
-        cTimer *t = Next(Timer);
-        if (Timer->Remote() && (!ServerName || strcmp(Timer->Remote(), ServerName) == 0)) {
-           Del(Timer);
-           Deleted = true;
-           }
-        Timer = t;
-        }
-  return Deleted;
-}
-
-void cTimers::TriggerRemoteTimerPoll(const char *ServerName)
-{
-  if (ServerName) {
-     if (!ExecSVDRPCommand(ServerName, cString::sprintf("POLL %s TIMERS", Setup.SVDRPHostName)))
-        esyslog("ERROR: can't send 'POLL %s TIMERS' to '%s'", Setup.SVDRPHostName, ServerName);
-     }
-  else {
-     cStringList ServerNames;
-     if (GetSVDRPServerNames(&ServerNames)) {
-        for (int i = 0; i < ServerNames.Size(); i++)
-            TriggerRemoteTimerPoll(ServerNames[i]);
-        }
-     }
-}
-
 static bool RemoteTimerError(const cTimer *Timer, cString *Msg)
 {
   if (Msg)

timers.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: timers.h 4.9 2017/10/31 09:47:14 kls Exp $
+ * $Id: timers.h 4.10 2018/02/25 12:54:55 kls Exp $
  */
 
 #ifndef __TIMERS_H
@@ -185,21 +185,12 @@ public:
   void Add(cTimer *Timer, cTimer *After = NULL);
   void Ins(cTimer *Timer, cTimer *Before = NULL);
   void Del(cTimer *Timer, bool DeleteObject = true);
-  bool GetRemoteTimers(const char *ServerName = NULL);
+  bool StoreRemoteTimers(const char *ServerName = NULL, const cStringList *RemoteTimers = NULL);
-      ///< Gets the timers from the given remote machine and adds them to this
+      ///< Stores the given list of RemoteTimers, which come from the VDR ServerName, in
-      ///< list. If no ServerName is given, all timers from all known remote
+      ///< this list. If no ServerName is given, all remote timers from all peer machines
-      ///< machines will be fetched. This function calls DelRemoteTimers() with
+      ///< will be removed from this list. If no RemoteTimers are given, only the remote
-      ///< the given ServerName first.
+      ///< timers from ServerName will be removed from this list.
       ///< Returns true if any remote timers have been added or deleted
-  bool DelRemoteTimers(const char *ServerName = NULL);
-      ///< Deletes all timers of the given remote machine from this list (leaves
-      ///< them untouched on the remote machine). If no ServerName is given, the
-      ///< timers of all remote machines will be deleted from the list.
-      ///< Returns true if any remote timers have been deleted.
-  void TriggerRemoteTimerPoll(const char *ServerName = NULL);
-      ///< Sends an SVDRP POLL command to the given remote machine.
-      ///< If no ServerName is given, the POLL command will be sent to all
-      ///< known remote machines.
   };
 
 bool HandleRemoteTimerModifications(cTimer *NewTimer, cTimer *OldTimer = NULL, cString *Msg = NULL);

vdr.c

@@ -22,7 +22,7 @@
  *
  * The project's page is at http://www.tvdr.de
  *
- * $Id: vdr.c 4.21 2017/11/09 16:15:34 kls Exp $
+ * $Id: vdr.c 4.22 2018/02/25 13:07:09 kls Exp $
  */
 
 #include <getopt.h>
@@ -1081,25 +1081,18 @@ int main(int argc, char *argv[])
         {
           // Timers and Recordings:
           bool TimersModified = false;
-          bool TriggerRemoteTimerPoll = false;
           static cStateKey TimersStateKey(true);
-          if (cTimers::GetTimersRead(TimersStateKey)) {
+          if (cTimers::GetTimersRead(TimersStateKey))
-             TriggerRemoteTimerPoll = true;
              TimersStateKey.Remove();
-             }
           cTimers *Timers = cTimers::GetTimersWrite(TimersStateKey);
-          // Get remote timers:
-          TimersModified |= Timers->GetRemoteTimers();
           // Assign events to timers:
           static cStateKey SchedulesStateKey;
           if (const cSchedules *Schedules = cSchedules::GetSchedulesRead(SchedulesStateKey))
              TimersModified |= Timers->SetEvents(Schedules);
           // Must do all following calls with the exact same time!
           // Process ongoing recordings:
-          if (cRecordControls::Process(Timers, Now)) {
+          if (cRecordControls::Process(Timers, Now))
              TimersModified = true;
-             TriggerRemoteTimerPoll = true;
-             }
           // Must keep the lock on the schedules until after processing the record
           // controls, in order to avoid short interrupts in case the current event
           // is replaced by a new one (which some broadcasters do, instead of just
@@ -1113,7 +1106,6 @@ int main(int argc, char *argv[])
              else
                 LastTimerChannel = Timer->Channel()->Number();
              TimersModified = true;
-             TriggerRemoteTimerPoll = true;
              }
           // Make sure timers "see" their channel early enough:
           static time_t LastTimerCheck = 0;
@@ -1168,13 +1160,8 @@ int main(int argc, char *argv[])
              LastTimerCheck = Now;
              }
           // Delete expired timers:
-          if (Timers->DeleteExpired()) {
+          if (Timers->DeleteExpired())
              TimersModified = true;
-             TriggerRemoteTimerPoll = true;
-             }
-          // Trigger remote timer polls:
-          if (TriggerRemoteTimerPoll)
-             Timers->TriggerRemoteTimerPoll();
           // Make sure there is enough free disk space for ongoing recordings:
           AssertFreeDiskSpace(Timers->GetMaxPriority());
           TimersStateKey.Remove(TimersModified);