Use of latency range in all backends. ComputeTotalLatencies now a client/server call.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4151 0c269be4-1314-0410-8aa9-9f06e86f4224

ChangeLog

@@ -34,6 +34,11 @@ Valerio Pilo
   Jackdmp changes log
 ---------------------------
 
+2011-03-08 Stephane Letz  <letz@grame.fr>
+
+	* Use of latency range in all backends.
+	* ComputeTotalLatencies now a client/server call.
+
 2011-03-04 Stephane Letz  <letz@grame.fr>
 
 	* Revert r4119 (RT notification in the server). JackAudioDriver::ProcessSync now skip backend write in case of graph process failure.

common/JackAPI.cpp

@@ -580,10 +580,10 @@ EXPORT int jack_recompute_total_latency(jack_client_t* ext_client, jack_port_t*
     uintptr_t port_aux = (uintptr_t)port;
     jack_port_id_t myport = (jack_port_id_t)port_aux;
     if (client == NULL) {
-        jack_error("jack_recompute_total_latencies called with a NULL client");
+        jack_error("jack_recompute_total_latency called with a NULL client");
         return -1;
     } else if (!CheckPort(myport)) {
-        jack_error("jack_recompute_total_latencies called with a NULL port");
+        jack_error("jack_recompute_total_latency called with a NULL port");
         return -1;
     } else {
         WaitGraphChange();
@@ -603,9 +603,7 @@ EXPORT int jack_recompute_total_latencies(jack_client_t* ext_client)
         jack_error("jack_recompute_total_latencies called with a NULL client");
         return -1;
     } else {
-        WaitGraphChange();
-        JackGraphManager* manager = GetGraphManager();
-        return (manager ? manager->ComputeTotalLatencies() : -1);
+        return client->ComputeTotalLatencies();
     }
 }
 

common/JackAudioDriver.cpp

@@ -101,6 +101,7 @@ int JackAudioDriver::Attach()
     jack_port_id_t port_index;
     char name[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
     char alias[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
+    jack_latency_range_t range;
     int i;
 
     jack_log("JackAudioDriver::Attach fBufferSize = %ld fSampleRate = %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);
@@ -114,7 +115,8 @@ int JackAudioDriver::Attach()
         }
         port = fGraphManager->GetPort(port_index);
         port->SetAlias(alias);
-        port->SetLatency(fEngineControl->fBufferSize + fCaptureLatency);
+        range.min = range.max = fEngineControl->fBufferSize + fCaptureLatency;
+        port->SetLatencyRange(JackCaptureLatency, &range);
         fCapturePortList[i] = port_index;
         jack_log("JackAudioDriver::Attach fCapturePortList[i] port_index = %ld", port_index);
     }
@@ -129,7 +131,8 @@ int JackAudioDriver::Attach()
         port = fGraphManager->GetPort(port_index);
         port->SetAlias(alias);
         // Add more latency if "async" mode is used...
-        port->SetLatency(fEngineControl->fBufferSize + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize) + fPlaybackLatency);
+        range.min = range.max = fEngineControl->fBufferSize + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize) + fPlaybackLatency;
+        port->SetLatencyRange(JackPlaybackLatency, &range);
         fPlaybackPortList[i] = port_index;
         jack_log("JackAudioDriver::Attach fPlaybackPortList[i] port_index = %ld", port_index);
 
@@ -143,7 +146,8 @@ int JackAudioDriver::Attach()
             } else {
                 port = fGraphManager->GetPort(port_index);
                 port->SetAlias(alias);
-                port->SetLatency(fEngineControl->fBufferSize);
+                range.min = range.max = fEngineControl->fBufferSize;
+                port->SetLatencyRange(JackCaptureLatency, &range);
                 fMonitorPortList[i] = port_index;
             }
         }

common/JackChannel.h

@@ -108,6 +108,9 @@ class JackClientChannelInterface
         virtual void SetFreewheel(int onoff, int* result)
         {}
 
+        virtual void ComputeTotalLatencies(int* result)
+        {}
+
         virtual void ReleaseTimebase(int refnum, int* result)
         {}
 

common/JackClient.cpp

@@ -718,6 +718,13 @@ int JackClient::SetFreeWheel(int onoff)
     return result;
 }
 
+int JackClient::ComputeTotalLatencies()
+{
+    int result = -1;
+    fChannel->ComputeTotalLatencies(&result);
+    return result;
+}
+
 /*
 ShutDown is called:
 - from the RT thread when Execute method fails

common/JackClient.h

@@ -141,6 +141,7 @@ class JackClient : public JackClientInterface, public JackRunnableInterface
         // Context
         virtual int SetBufferSize(jack_nframes_t buffer_size);
         virtual int SetFreeWheel(int onoff);
+        virtual int ComputeTotalLatencies();
         virtual void ShutDown();
         virtual jack_native_thread_t GetThreadID();
 

common/JackEngine.cpp

@@ -209,6 +209,12 @@ void JackEngine::CheckXRun(jack_time_t callback_usecs)  // REVOIR les conditions
     }
 }
 
+int JackEngine::ComputeTotalLatencies()
+{
+    // TODO : jack_compute_new_latency
+    return 0;
+}
+
 //---------------
 // Notifications
 //---------------
@@ -295,6 +301,7 @@ void JackEngine::NotifyXRun(int refnum)
 
 void JackEngine::NotifyGraphReorder()
 {
+    ComputeTotalLatencies();
     NotifyClients(kGraphOrderCallback, false, "", 0, 0);
 }
 

common/JackEngine.h

@@ -129,6 +129,8 @@ class SERVER_EXPORT JackEngine : public JackLockAble
 
         int PortRename(int refnum, jack_port_id_t port, const char* name);
 
+        int ComputeTotalLatencies();
+
         // Graph
         bool Process(jack_time_t cur_cycle_begin, jack_time_t prev_cycle_end);
 
@@ -142,8 +144,9 @@ class SERVER_EXPORT JackEngine : public JackLockAble
         void NotifyFreewheel(bool onoff);
         void NotifyQuit();
 
-        void SessionNotify( int refnum, const char *target, jack_session_event_type_t type, const char *path, JackChannelTransaction *socket );
-        void SessionReply( int refnum );
+        // Session management
+        void SessionNotify(int refnum, const char *target, jack_session_event_type_t type, const char *path, JackChannelTransaction *socket);
+        void SessionReply(int refnum);
 
         void GetUUIDForClientName(const char *client_name, char *uuid_res, int *result);
         void GetClientNameForUUID(const char *uuid, char *name_res, int *result);

common/JackInternalClientChannel.h

@@ -112,6 +112,11 @@ class JackInternalClientChannel : public detail::JackClientChannelInterface
             *result = fServer->SetFreewheel(onoff);
         }
 
+        void ComputeTotalLatencies(int* result)
+        {
+            *result = fEngine->ComputeTotalLatencies();
+        }
+
         void SessionNotify( int refnum, const char *target, jack_session_event_type_t type, const char *path, jack_session_command_t **result )
         {
             *result = NULL;
@@ -126,7 +131,7 @@ class JackInternalClientChannel : public detail::JackClientChannelInterface
         {
             *result = fServer->SetTimebaseCallback(refnum, conditional);
         }
-        
+
         void GetInternalClientName(int refnum, int int_ref, char* name_res, int* result)
         {
             *result = fEngine->GetInternalClientName(int_ref, name_res);
@@ -139,7 +144,7 @@ class JackInternalClientChannel : public detail::JackClientChannelInterface
 
         void InternalClientLoad(int refnum, const char* client_name, const char* so_name, const char* objet_data, int options, int* status, int* int_ref, int uuid, int* result)
         {
-            *result = fServer->InternalClientLoad(client_name, so_name, objet_data, options, int_ref, uuid, status);    
+            *result = fServer->InternalClientLoad(client_name, so_name, objet_data, options, int_ref, uuid, status);
         }
 
         void InternalClientUnload(int refnum, int int_ref, int* status, int* result)

common/JackLockedEngine.h

@@ -66,7 +66,7 @@ catch (...) {
 \brief Locked Engine, access to methods is serialized using a mutex.
 */
 
-class SERVER_EXPORT JackLockedEngine 
+class SERVER_EXPORT JackLockedEngine
 {
     private:
 
@@ -94,7 +94,7 @@ class SERVER_EXPORT JackLockedEngine
             return fEngine.Close();
             CATCH_EXCEPTION_RETURN
         }
-    
+
         // Client management
         int ClientCheck(const char* name, int uuid, char* name_res, int protocol, int options, int* status)
         {
@@ -226,6 +226,14 @@ class SERVER_EXPORT JackLockedEngine
             CATCH_EXCEPTION_RETURN
         }
 
+        int ComputeTotalLatencies()
+        {
+            TRY_CALL
+            JackLock lock(&fEngine);
+            return fEngine.ComputeTotalLatencies();
+            CATCH_EXCEPTION_RETURN
+        }
+
         // Graph
         bool Process(jack_time_t cur_cycle_begin, jack_time_t prev_cycle_end)
         {
@@ -245,7 +253,7 @@ class SERVER_EXPORT JackLockedEngine
             // RT : no lock
             fEngine.NotifyXRun(refnum);
         }
-        
+
         void NotifyGraphReorder()
         {
             TRY_CALL
@@ -298,7 +306,7 @@ class SERVER_EXPORT JackLockedEngine
             return fEngine.GetClientRefNum(name);
             CATCH_EXCEPTION_RETURN
         }
-    
+
         void NotifyQuit()
         {
             TRY_CALL
@@ -314,7 +322,7 @@ class SERVER_EXPORT JackLockedEngine
             fEngine.SessionNotify(refnum, target, type, path, socket);
             CATCH_EXCEPTION
         }
- 
+
         void SessionReply(int refnum)
         {
             TRY_CALL
@@ -322,7 +330,7 @@ class SERVER_EXPORT JackLockedEngine
             fEngine.SessionReply(refnum);
             CATCH_EXCEPTION
         }
- 
+
         void GetUUIDForClientName(const char *client_name, char *uuid_res, int *result)
         {
             TRY_CALL

common/JackNetDriver.cpp

@@ -118,10 +118,10 @@ namespace Jack
 
 //init and restart--------------------------------------------------------------------
     /*
-        JackNetDriver is wrapped in a JackWaitThreadedDriver decorator that behaves 
+        JackNetDriver is wrapped in a JackWaitThreadedDriver decorator that behaves
         as a "dummy driver, until Init method returns.
     */
-    
+
     bool JackNetDriver::Initialize()
     {
         jack_log("JackNetDriver::Initialize()");
@@ -147,7 +147,7 @@ namespace Jack
 
         //set global parameters
         SetParams();
-         
+
         //allocate midi ports lists
         fMidiCapturePortList = new jack_port_id_t [fParams.fSendMidiChannels];
         fMidiPlaybackPortList = new jack_port_id_t [fParams.fReturnMidiChannels];
@@ -216,7 +216,7 @@ namespace Jack
     void JackNetDriver::FreeAll()
     {
         FreePorts();
-        
+
         delete[] fTxBuffer;
         delete[] fRxBuffer;
         delete fNetAudioCaptureBuffer;
@@ -225,7 +225,7 @@ namespace Jack
         delete fNetMidiPlaybackBuffer;
         delete[] fMidiCapturePortList;
         delete[] fMidiPlaybackPortList;
-        
+
         fTxBuffer = NULL;
         fRxBuffer = NULL;
         fNetAudioCaptureBuffer = NULL;
@@ -234,7 +234,7 @@ namespace Jack
         fNetMidiPlaybackBuffer = NULL;
         fMidiCapturePortList = NULL;
         fMidiPlaybackPortList = NULL;
-        
+
 #ifdef JACK_MONITOR
         delete fNetTimeMon;
         fNetTimeMon = NULL;
@@ -253,6 +253,7 @@ namespace Jack
         unsigned long port_flags;
         int audio_port_index;
         uint midi_port_index;
+        jack_latency_range_t range;
 
         //audio
         port_flags = JackPortIsOutput | JackPortIsPhysical | JackPortIsTerminal;
@@ -269,7 +270,8 @@ namespace Jack
             port = fGraphManager->GetPort ( port_id );
             port->SetAlias ( alias );
             //port latency
-            port->SetLatency ( fEngineControl->fBufferSize );
+            range.min = range.max = fEngineControl->fBufferSize;
+            port->SetLatencyRange(JackCaptureLatency, &range);
             fCapturePortList[audio_port_index] = port_id;
             jack_log ( "JackNetDriver::AllocPorts() fCapturePortList[%d] audio_port_index = %ld fPortLatency = %ld", audio_port_index, port_id, port->GetLatency() );
         }
@@ -290,15 +292,16 @@ namespace Jack
             switch ( fParams.fNetworkMode )
             {
                 case 'f' :
-                    port->SetLatency ( ( fEngineControl->fSyncMode ) ? 0 : fEngineControl->fBufferSize );
+                    range.min = range.max = (fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize;
                     break;
                 case 'n' :
-                    port->SetLatency ( fEngineControl->fBufferSize + ( fEngineControl->fSyncMode ) ? 0 : fEngineControl->fBufferSize );
+                    range.min = range.max = (fEngineControl->fBufferSize + (fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize);
                     break;
                 case 's' :
-                    port->SetLatency ( 2 * fEngineControl->fBufferSize + ( fEngineControl->fSyncMode ) ? 0 : fEngineControl->fBufferSize );
+                    range.min = range.max = (2 * fEngineControl->fBufferSize + (fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize);
                     break;
             }
+            port->SetLatencyRange(JackPlaybackLatency, &range);
             fPlaybackPortList[audio_port_index] = port_id;
             jack_log ( "JackNetDriver::AllocPorts() fPlaybackPortList[%d] audio_port_index = %ld fPortLatency = %ld", audio_port_index, port_id, port->GetLatency() );
         }
@@ -316,7 +319,8 @@ namespace Jack
             }
             port = fGraphManager->GetPort ( port_id );
             //port latency
-            port->SetLatency ( fEngineControl->fBufferSize );
+            range.min = range.max = fEngineControl->fBufferSize;
+            port->SetLatencyRange(JackCaptureLatency, &range);
             fMidiCapturePortList[midi_port_index] = port_id;
             jack_log ( "JackNetDriver::AllocPorts() fMidiCapturePortList[%d] midi_port_index = %ld fPortLatency = %ld", midi_port_index, port_id, port->GetLatency() );
         }
@@ -337,15 +341,16 @@ namespace Jack
             switch ( fParams.fNetworkMode )
             {
                 case 'f' :
-                    port->SetLatency ( ( fEngineControl->fSyncMode ) ? 0 : fEngineControl->fBufferSize );
+                    range.min = range.max = (fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize;
                     break;
                 case 'n' :
-                    port->SetLatency ( fEngineControl->fBufferSize + ( fEngineControl->fSyncMode ) ? 0 : fEngineControl->fBufferSize ) ;
+                    range.min = range.max = (fEngineControl->fBufferSize + (fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize);
                     break;
                 case 's' :
-                    port->SetLatency ( 2 * fEngineControl->fBufferSize + ( fEngineControl->fSyncMode ) ? 0 : fEngineControl->fBufferSize );
+                    range.min = range.max = (2 * fEngineControl->fBufferSize + (fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize);
                     break;
             }
+            port->SetLatencyRange(JackPlaybackLatency, &range);
             fMidiPlaybackPortList[midi_port_index] = port_id;
             jack_log ( "JackNetDriver::AllocPorts() fMidiPlaybackPortList[%d] midi_port_index = %ld fPortLatency = %ld", midi_port_index, port_id, port->GetLatency() );
         }
@@ -404,7 +409,7 @@ namespace Jack
         //is there a transport state change to handle ?
         if ( fSendTransportData.fNewState && ( fSendTransportData.fState != fEngineControl->fTransport.GetState() ) )
         {
-           
+
             switch ( fSendTransportData.fState )
             {
                 case JackTransportStopped :
@@ -453,13 +458,13 @@ namespace Jack
         else
             fReturnTransportData.fTimebaseMaster = NO_CHANGE;
         */
-        
+
         //update transport state and position
         fReturnTransportData.fState = fEngineControl->fTransport.Query ( &fReturnTransportData.fPosition );
-    
+
         //is it a new state (that the master need to know...) ?
         fReturnTransportData.fNewState = (( fReturnTransportData.fState == JackTransportNetStarting) &&
-                                           ( fReturnTransportData.fState != fLastTransportState ) && 
+                                           ( fReturnTransportData.fState != fLastTransportState ) &&
                                            ( fReturnTransportData.fState != fSendTransportData.fState ) );
         if ( fReturnTransportData.fNewState )
             jack_info ( "Sending '%s'.", GetTransportState ( fReturnTransportData.fState ) );
@@ -487,14 +492,14 @@ namespace Jack
             return 0;
 
 #ifdef JACK_MONITOR
-        // For timing  
+        // For timing
         fRcvSyncUst = GetMicroSeconds();
 #endif
 
         //decode sync
         //if there is an error, don't return -1, it will skip Write() and the network error probably won't be identified
         DecodeSyncPacket();
- 
+
 #ifdef JACK_MONITOR
         fNetTimeMon->Add ( ( ( float ) ( GetMicroSeconds() - fRcvSyncUst ) / ( float ) fEngineControl->fPeriodUsecs ) * 100.f );
 #endif
@@ -529,7 +534,7 @@ namespace Jack
 
         //sync
         EncodeSyncPacket();
-   
+
         //send sync
         if ( SyncSend() == SOCKET_ERROR )
             return SOCKET_ERROR;

common/JackRequest.h

@@ -13,7 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public License
-along with this program; if not, write to the Free Software 
+along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 */
@@ -71,7 +71,8 @@ struct JackRequest
         kSessionReply  = 34,
         kGetClientByUUID = 35,
         kReserveClientName = 36,
-        kGetUUIDByClient = 37
+        kGetUUIDByClient = 37,
+        kComputeTotalLatencies = 38
     };
 
     RequestType fType;
@@ -122,7 +123,7 @@ struct JackResult
     {
         return trans->Write(&fResult, sizeof(int));
     }
-    
+
 };
 
 /*!
@@ -161,7 +162,7 @@ struct JackClientCheckRequest : public JackRequest
         CheckRes(trans->Write(&fOptions, sizeof(int)));
         return trans->Write(&fUUID, sizeof(int));
     }
-    
+
 };
 
 /*!
@@ -197,7 +198,7 @@ struct JackClientCheckResult : public JackResult
         CheckRes(trans->Write(&fStatus, sizeof(int)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -210,7 +211,7 @@ struct JackClientOpenRequest : public JackRequest
     int fPID;
     int fUUID;
     char fName[JACK_CLIENT_NAME_SIZE + 1];
- 
+
     JackClientOpenRequest()
     {}
     JackClientOpenRequest(const char* name, int pid, int uuid): JackRequest(JackRequest::kClientOpen)
@@ -234,7 +235,7 @@ struct JackClientOpenRequest : public JackRequest
         CheckRes(trans->Write(&fUUID, sizeof(int)));
         return trans->Write(&fName,  sizeof(fName));
     }
-    
+
 };
 
 /*!
@@ -247,7 +248,7 @@ struct JackClientOpenResult : public JackResult
     int fSharedEngine;
     int fSharedClient;
     int fSharedGraph;
-   
+
     JackClientOpenResult()
             : JackResult(), fSharedEngine(-1), fSharedClient(-1), fSharedGraph(-1)
     {}
@@ -272,7 +273,7 @@ struct JackClientOpenResult : public JackResult
         CheckRes(trans->Write(&fSharedGraph, sizeof(int)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -299,7 +300,7 @@ struct JackClientCloseRequest : public JackRequest
         CheckRes(JackRequest::Write(trans));
         return trans->Write(&fRefNum, sizeof(int));
     }
-    
+
 };
 
 /*!
@@ -402,7 +403,7 @@ struct JackPortRegisterRequest : public JackRequest
         CheckRes(trans->Write(&fBufferSize, sizeof(unsigned int)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -428,7 +429,7 @@ struct JackPortRegisterResult : public JackResult
         CheckRes(JackResult::Write(trans));
         return trans->Write(&fPortIndex, sizeof(jack_port_id_t));
     }
-    
+
 };
 
 /*!
@@ -461,7 +462,7 @@ struct JackPortUnRegisterRequest : public JackRequest
         CheckRes(trans->Write(&fPortIndex, sizeof(jack_port_id_t)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -501,7 +502,7 @@ struct JackPortConnectNameRequest : public JackRequest
         CheckRes(trans->Write(&fDst, sizeof(fDst)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -540,7 +541,7 @@ struct JackPortDisconnectNameRequest : public JackRequest
         CheckRes(trans->Write(&fDst, sizeof(fDst)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -576,7 +577,7 @@ struct JackPortConnectRequest : public JackRequest
         CheckRes(trans->Write(&fDst, sizeof(jack_port_id_t)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -612,7 +613,7 @@ struct JackPortDisconnectRequest : public JackRequest
         CheckRes(trans->Write(&fDst, sizeof(jack_port_id_t)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -651,7 +652,7 @@ struct JackPortRenameRequest : public JackRequest
         return 0;
 
     }
-    
+
 };
 
 /*!
@@ -679,7 +680,7 @@ struct JackSetBufferSizeRequest : public JackRequest
         CheckRes(JackRequest::Write(trans));
         return trans->Write(&fBufferSize, sizeof(jack_nframes_t));
     }
-    
+
 };
 
 /*!
@@ -707,7 +708,31 @@ struct JackSetFreeWheelRequest : public JackRequest
         CheckRes(JackRequest::Write(trans));
         return trans->Write(&fOnOff, sizeof(int));
     }
-    
+
+};
+
+/*!
+\brief ComputeTotalLatencies request.
+*/
+
+struct JackComputeTotalLatenciesRequest : public JackRequest
+{
+
+    JackComputeTotalLatenciesRequest()
+        : JackRequest(JackRequest::kComputeTotalLatencies)
+    {}
+
+    int Read(JackChannelTransaction* trans)
+    {
+        return 0;
+    }
+
+    int Write(JackChannelTransaction* trans)
+    {
+        CheckRes(JackRequest::Write(trans));
+        return 0;
+    }
+
 };
 
 /*!
@@ -735,7 +760,7 @@ struct JackReleaseTimebaseRequest : public JackRequest
         CheckRes(JackRequest::Write(trans));
         return trans->Write(&fRefNum, sizeof(int));
     }
-    
+
 };
 
 /*!
@@ -766,7 +791,7 @@ struct JackSetTimebaseCallbackRequest : public JackRequest
         CheckRes(trans->Write(&fRefNum, sizeof(int)));
         return trans->Write(&fConditionnal, sizeof(int));
     }
-    
+
 };
 
 /*!
@@ -797,7 +822,7 @@ struct JackGetInternalClientNameRequest : public JackRequest
         CheckRes(trans->Write(&fRefNum, sizeof(int)));
         return trans->Write(&fIntRefNum, sizeof(int));
     }
-    
+
 };
 
 /*!
@@ -830,7 +855,7 @@ struct JackGetInternalClientNameResult : public JackResult
         CheckRes(trans->Write(&fName,  sizeof(fName)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -863,7 +888,7 @@ struct JackInternalClientHandleRequest : public JackRequest
         CheckRes(trans->Write(&fRefNum, sizeof(int)));
         return trans->Write(&fName,  sizeof(fName));
     }
-    
+
 };
 
 /*!
@@ -897,7 +922,7 @@ struct JackInternalClientHandleResult : public JackResult
         CheckRes(trans->Write(&fIntRefNum, sizeof(int)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -949,7 +974,7 @@ struct JackInternalClientLoadRequest : public JackRequest
         CheckRes(trans->Write(&fUUID, sizeof(int)));
         return trans->Write(&fOptions, sizeof(int));
     }
-    
+
 };
 
 /*!
@@ -983,7 +1008,7 @@ struct JackInternalClientLoadResult : public JackResult
         CheckRes(trans->Write(&fIntRefNum, sizeof(int)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -1044,7 +1069,7 @@ struct JackInternalClientUnloadResult : public JackResult
         CheckRes(trans->Write(&fStatus, sizeof(int)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -1147,7 +1172,7 @@ struct JackSessionNotifyResult : public JackResult
         CheckRes(trans->Write(terminator, sizeof(terminator)));
         return 0;
     }
-    
+
 };
 
 /*!
@@ -1245,7 +1270,7 @@ struct JackClientNameResult : public JackResult
         CheckRes(trans->Write(&fName, sizeof(fName)));
         return 0;
     }
-    
+
 };
 
 struct JackUUIDResult : public JackResult
@@ -1274,7 +1299,7 @@ struct JackUUIDResult : public JackResult
         CheckRes(trans->Write(&fUUID, sizeof(fUUID)));
         return 0;
     }
-    
+
 };
 
 struct JackGetUUIDRequest : public JackRequest

linux/alsa/JackAlsaDriver.cpp

@@ -2084,6 +2084,7 @@ int JackAlsaDriver::Attach()
     unsigned long port_flags;
     char name[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
     char alias[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
+    jack_latency_range_t range;
 
     assert(fCaptureChannels < DRIVER_PORT_NUM);
     assert(fPlaybackChannels < DRIVER_PORT_NUM);
@@ -2110,7 +2111,8 @@ int JackAlsaDriver::Attach()
         }
         port = fGraphManager->GetPort(port_index);
         port->SetAlias(alias);
-        port->SetLatency(alsa_driver->frames_per_cycle + alsa_driver->capture_frame_latency);
+        range.min = range.max = alsa_driver->frames_per_cycle + alsa_driver->capture_frame_latency;
+        port->SetLatencyRange(JackCaptureLatency, &range);
         fCapturePortList[i] = port_index;
         jack_log("JackAudioDriver::Attach fCapturePortList[i] %ld ", port_index);
     }
@@ -2127,8 +2129,10 @@ int JackAlsaDriver::Attach()
         port = fGraphManager->GetPort(port_index);
         port->SetAlias(alias);
         // Add one buffer more latency if "async" mode is used...
-        port->SetLatency((alsa_driver->frames_per_cycle * (alsa_driver->user_nperiods - 1)) +
-                         ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize) + alsa_driver->playback_frame_latency);
+        range.min = range.max = (alsa_driver->frames_per_cycle * (alsa_driver->user_nperiods - 1)) +
+                         ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize) + alsa_driver->playback_frame_latency;
+
+        port->SetLatencyRange(JackPlaybackLatency, &range);
         fPlaybackPortList[i] = port_index;
         jack_log("JackAudioDriver::Attach fPlaybackPortList[i] %ld ", port_index);
 
@@ -2140,7 +2144,8 @@ int JackAlsaDriver::Attach()
                 jack_error ("ALSA: cannot register monitor port for %s", name);
             } else {
                 port = fGraphManager->GetPort(port_index);
-                port->SetLatency(alsa_driver->frames_per_cycle);
+                range.min = range.max = alsa_driver->frames_per_cycle;
+                port->SetLatencyRange(JackCaptureLatency, &range);
                 fMonitorPortList[i] = port_index;
             }
         }

linux/firewire/JackFFADODriver.cpp

@@ -272,7 +272,7 @@ JackFFADODriver::SetBufferSize (jack_nframes_t nframes)
     printError("Buffer size change requested but not supported!!!");
 
     /*
-    driver->period_size = nframes; 
+    driver->period_size = nframes;
     driver->period_usecs =
             (jack_time_t) floor ((((float) nframes) / driver->sample_rate)
                                  * 1000000.0f);
@@ -362,6 +362,7 @@ int JackFFADODriver::Attach()
     int port_index;
     char buf[JACK_PORT_NAME_SIZE];
     char portname[JACK_PORT_NAME_SIZE];
+    jack_latency_range_t range;
 
     ffado_driver_t* driver = (ffado_driver_t*)fDriver;
 
@@ -447,7 +448,8 @@ int JackFFADODriver::Attach()
             ffado_streaming_capture_stream_onoff(driver->dev, chn, 0);
 
             port = fGraphManager->GetPort(port_index);
-            port->SetLatency(driver->period_size + driver->capture_frame_latency);
+            range.min = range.max = driver->period_size + driver->capture_frame_latency;
+            port->SetLatencyRange(JackCaptureLatency, &range);
             // capture port aliases (jackd1 style port names)
             snprintf(buf, sizeof(buf) - 1, "%s:capture_%i", fClientControl.fName, (int) chn + 1);
             port->SetAlias(buf);
@@ -479,7 +481,8 @@ int JackFFADODriver::Attach()
             driver->capture_channels[chn].midi_buffer = (uint32_t *)calloc(driver->period_size, sizeof(uint32_t));
 
             port = fGraphManager->GetPort(port_index);
-            port->SetLatency(driver->period_size + driver->capture_frame_latency);
+            range.min = range.max = driver->period_size + driver->capture_frame_latency;
+            port->SetLatencyRange(JackCaptureLatency, &range);
             fCapturePortList[chn] = port_index;
             jack_log("JackFFADODriver::Attach fCapturePortList[i] %ld ", port_index);
             fCaptureChannels++;
@@ -523,7 +526,8 @@ int JackFFADODriver::Attach()
 
             port = fGraphManager->GetPort(port_index);
             // Add one buffer more latency if "async" mode is used...
-            port->SetLatency((driver->period_size * (driver->device_options.nb_buffers - 1)) + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize) + driver->playback_frame_latency);
+            range.min = range.max = (driver->period_size * (driver->device_options.nb_buffers - 1)) + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize) + driver->playback_frame_latency
+            port->SetLatencyRange(JackPlaybackLatency, &range);
             // playback port aliases (jackd1 style port names)
             snprintf(buf, sizeof(buf) - 1, "%s:playback_%i", fClientControl.fName, (int) chn + 1);
             port->SetAlias(buf);
@@ -549,7 +553,7 @@ int JackFFADODriver::Attach()
                 printError(" cannot enable port %s", buf);
             }
             // setup the midi buffer
-            
+
             // This constructor optionally accepts arguments for the
             // non-realtime buffer size and the realtime buffer size.  Ideally,
             // these would become command-line options for the FFADO driver.
@@ -558,7 +562,8 @@ int JackFFADODriver::Attach()
             driver->playback_channels[chn].midi_buffer = (uint32_t *)calloc(driver->period_size, sizeof(uint32_t));
 
             port = fGraphManager->GetPort(port_index);
-            port->SetLatency((driver->period_size * (driver->device_options.nb_buffers - 1)) + driver->playback_frame_latency);
+            range.min = range.max = (driver->period_size * (driver->device_options.nb_buffers - 1)) + driver->playback_frame_latency;
+            port->SetLatencyRange(JackPlaybackLatency, &range);
             fPlaybackPortList[chn] = port_index;
             jack_log("JackFFADODriver::Attach fPlaybackPortList[i] %ld ", port_index);
             fPlaybackChannels++;
@@ -676,7 +681,7 @@ retry:
 
     if (nframes == 0) {
         /* we detected an xrun and restarted: notify
-         * clients about the delay. 
+         * clients about the delay.
          */
         jack_log("FFADO XRun");
         NotifyXRun(fBeginDateUst, fDelayedUsecs);
@@ -685,7 +690,7 @@ retry:
 
     if (nframes != fEngineControl->fBufferSize)
         jack_log("JackFFADODriver::Read warning nframes = %ld", nframes);
-        
+
     // Has to be done before read
     JackDriver::CycleIncTime();
 
@@ -755,7 +760,7 @@ extern "C"
 
         strcpy (desc->name, "firewire");                               // size MUST be less then JACK_DRIVER_NAME_MAX + 1
         strcpy(desc->desc, "Linux FFADO API based audio backend");     // size MUST be less then JACK_DRIVER_PARAM_DESC + 1
-       
+
         desc->nparams = 13;
 
         params = (jack_driver_param_desc_t *)calloc (desc->nparams, sizeof (jack_driver_param_desc_t));

linux/freebob/JackFreebobDriver.cpp

@@ -260,7 +260,7 @@ JackFreebobDriver::SetBufferSize (jack_nframes_t nframes)
     printError("Buffer size change requested but not supported!!!");
 
     /*
-    driver->period_size = nframes; 
+    driver->period_size = nframes;
     driver->period_usecs =
     	(jack_time_t) floor ((((float) nframes) / driver->sample_rate)
     			     * 1000000.0f);
@@ -667,9 +667,10 @@ int JackFreebobDriver::Attach()
 {
     JackPort* port;
     int port_index;
-  
+
     char buf[JACK_PORT_NAME_SIZE];
     char portname[JACK_PORT_NAME_SIZE];
+    jack_latency_range_t range;
 
     freebob_driver_t* driver = (freebob_driver_t*)fDriver;
 
@@ -737,7 +738,8 @@ int JackFreebobDriver::Attach()
                 return -1;
             }
             port = fGraphManager->GetPort(port_index);
-            port->SetLatency(driver->period_size + driver->capture_frame_latency);
+            range.min = range.max = driver->period_size + driver->capture_frame_latency;
+            port->SetLatencyRange(JackCaptureLatency, &range);
             fCapturePortList[i] = port_index;
             jack_log("JackFreebobDriver::Attach fCapturePortList[i] %ld ", port_index);
             driver->capture_nchannels_audio++;
@@ -766,7 +768,8 @@ int JackFreebobDriver::Attach()
             }
             port = fGraphManager->GetPort(port_index);
             // Add one buffer more latency if "async" mode is used...
-            port->SetLatency((driver->period_size * (driver->device_options.nb_buffers - 1)) + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize) + driver->playback_frame_latency);
+            range.min = range.max = (driver->period_size * (driver->device_options.nb_buffers - 1)) + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize) + driver->playback_frame_latency);
+            port->SetLatencyRange(JackPlaybackLatency, &range);
             fPlaybackPortList[i] = port_index;
             jack_log("JackFreebobDriver::Attach fPlaybackPortList[i] %ld ", port_index);
             driver->playback_nchannels_audio++;
@@ -866,7 +869,7 @@ retry:
 
     if (nframes == 0) {
         /* we detected an xrun and restarted: notify
-         * clients about the delay. 
+         * clients about the delay.
          */
         jack_log("FreeBoB XRun");
         NotifyXRun(fBeginDateUst, fDelayedUsecs);
@@ -878,7 +881,7 @@ retry:
 
     // Has to be done before read
     JackDriver::CycleIncTime();
-    
+
     printExit();
     return freebob_driver_read((freebob_driver_t *)fDriver, fEngineControl->fBufferSize);
 }
@@ -944,7 +947,7 @@ extern "C"
 
         strcpy (desc->name, "freebob");                                // size MUST be less then JACK_DRIVER_NAME_MAX + 1
         strcpy(desc->desc, "Linux FreeBob API based audio backend");   // size MUST be less then JACK_DRIVER_PARAM_DESC + 1
-        
+
         desc->nparams = 11;
 
         params = (jack_driver_param_desc_t *)calloc (desc->nparams, sizeof (jack_driver_param_desc_t));

macosx/Jackdmp.xcodeproj/project.pbxproj

@@ -408,6 +408,10 @@
 		4B4F9C930DC20C0400706CB0 /* JackMessageBuffer.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B4F9C8B0DC20C0400706CB0 /* JackMessageBuffer.h */; };
 		4B4F9D820DC2178E00706CB0 /* JackMessageBuffer.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B4F9C8A0DC20C0400706CB0 /* JackMessageBuffer.cpp */; };
 		4B4F9D830DC2178F00706CB0 /* JackMessageBuffer.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B4F9C8B0DC20C0400706CB0 /* JackMessageBuffer.h */; };
+		4B5160A813215E8B00BB7DCB /* systemdeps.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B94334910A5E666002A187F /* systemdeps.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		4B5160A913215EBF00BB7DCB /* systemdeps.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B94334910A5E666002A187F /* systemdeps.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		4B5160AA13215ED900BB7DCB /* systemdeps.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B94334910A5E666002A187F /* systemdeps.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		4B5160AE13215EF900BB7DCB /* systemdeps.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B94334910A5E666002A187F /* systemdeps.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		4B5A1BBE0CD1CC110005BF74 /* midiseq.c in Sources */ = {isa = PBXBuildFile; fileRef = 4B5A1BBD0CD1CC110005BF74 /* midiseq.c */; };
 		4B5A1BDD0CD1CD420005BF74 /* midisine.c in Sources */ = {isa = PBXBuildFile; fileRef = 4B5A1BDC0CD1CD420005BF74 /* midisine.c */; };
 		4B5DB9830CD2429A00EBA5EE /* JackDebugClient.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B98AE000931D30C0091932A /* JackDebugClient.cpp */; };
@@ -3098,6 +3102,7 @@
 				4B88D04011298BEE007A87C1 /* weakmacros.h in Headers */,
 				4B8A38F0117B827900664E07 /* JackSocket.h in Headers */,
 				4B8A38F7117B82B200664E07 /* JackSocketClientChannel.h in Headers */,
+				4B5160A813215E8B00BB7DCB /* systemdeps.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -3170,6 +3175,7 @@
 				4B8A38AD117B810A00664E07 /* JackSocketNotifyChannel.h in Headers */,
 				4B8A38B0117B812500664E07 /* JackSocketServerChannel.h in Headers */,
 				4B8A38C4117B814000664E07 /* JackSocketServerNotifyChannel.h in Headers */,
+				4B5160AA13215ED900BB7DCB /* systemdeps.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -3450,6 +3456,7 @@
 				4B47ACAB10B5890100469C67 /* JackProcessSync.h in Headers */,
 				4B88D04111298BEE007A87C1 /* weakjack.h in Headers */,
 				4B88D04211298BEE007A87C1 /* weakmacros.h in Headers */,
+				4B5160A913215EBF00BB7DCB /* systemdeps.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -3794,6 +3801,7 @@
 				4B88D04611298BEE007A87C1 /* weakmacros.h in Headers */,
 				4BC2CA5E113C6CCA0076717C /* JackNetInterface.h in Headers */,
 				4BC2CA60113C6CD20076717C /* JackNetUnixSocket.h in Headers */,
+				4B5160AE13215EF900BB7DCB /* systemdeps.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

macosx/coreaudio/JackCoreAudioDriver.cpp

@@ -1569,6 +1569,7 @@ int JackCoreAudioDriver::Attach()
     char channel_name[64];
     char name[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
     char alias[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
+    jack_latency_range_t range;
 
     jack_log("JackCoreAudioDriver::Attach fBufferSize %ld fSampleRate %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);
 
@@ -1605,7 +1606,8 @@ int JackCoreAudioDriver::Attach()
 
         port = fGraphManager->GetPort(port_index);
         port->SetAlias(alias);
-        port->SetLatency(fEngineControl->fBufferSize + value1 + value2 + fCaptureLatency);
+        range.min = range.max = fEngineControl->fBufferSize + value1 + value2 + fCaptureLatency;
+        port->SetLatencyRange(JackCaptureLatency, &range);
         fCapturePortList[i] = port_index;
     }
 
@@ -1643,7 +1645,8 @@ int JackCoreAudioDriver::Attach()
         port = fGraphManager->GetPort(port_index);
         port->SetAlias(alias);
         // Add more latency if "async" mode is used...
-        port->SetLatency(fEngineControl->fBufferSize + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize * fIOUsage) + value1 + value2 + fPlaybackLatency);
+        range.min = range.max = fEngineControl->fBufferSize + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize * fIOUsage) + value1 + value2 + fPlaybackLatency;
+        port->SetLatencyRange(JackPlaybackLatency, &range);
         fPlaybackPortList[i] = port_index;
 
         // Monitor ports
@@ -1656,7 +1659,8 @@ int JackCoreAudioDriver::Attach()
             } else {
                 port = fGraphManager->GetPort(port_index);
                 port->SetAlias(alias);
-                port->SetLatency(fEngineControl->fBufferSize);
+                range.min = range.max = fEngineControl->fBufferSize;
+                port->SetLatencyRange(JackCaptureLatency, &range);
                 fMonitorPortList[i] = port_index;
             }
         }

posix/JackSocketClientChannel.cpp

@@ -12,7 +12,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public License
-along with this program; if not, write to the Free Software 
+along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 */
@@ -246,6 +246,13 @@ void JackSocketClientChannel::SetFreewheel(int onoff, int* result)
     ServerSyncCall(&req, &res, result);
 }
 
+void JackSocketClientChannel::ComputeTotalLatencies(int* result)
+{
+    JackComputeTotalLatenciesRequest req;
+    JackResult res;
+    ServerSyncCall(&req, &res, result);
+}
+
 void JackSocketClientChannel::SessionNotify(int refnum, const char* target, jack_session_event_type_t type, const char* path, jack_session_command_t ** result)
 {
     JackSessionNotifyRequest req(refnum, path, type, target);
@@ -255,22 +262,20 @@ void JackSocketClientChannel::SessionNotify(int refnum, const char* target, jack
 
     jack_session_command_t *session_command = (jack_session_command_t *)malloc( sizeof(jack_session_command_t) * (res.fCommandList.size()+1) );
     int i=0;
-   
+
     for (std::list<JackSessionCommand>::iterator ci=res.fCommandList.begin(); ci!=res.fCommandList.end(); ci++) {
-	session_command[i].uuid = strdup( ci->fUUID );
-	session_command[i].client_name = strdup( ci->fClientName );
-	session_command[i].command = strdup( ci->fCommand );
-	session_command[i].flags = ci->fFlags;
-
-	i+=1;
-    }	
-	
+        session_command[i].uuid = strdup( ci->fUUID );
+        session_command[i].client_name = strdup( ci->fClientName );
+        session_command[i].command = strdup( ci->fCommand );
+        session_command[i].flags = ci->fFlags;
+       i+=1;
+    }
+
     session_command[i].uuid = NULL;
     session_command[i].client_name = NULL;
     session_command[i].command = NULL;
     session_command[i].flags = (jack_session_flags_t)0;
 
-
     *result = session_command;
 }
 

posix/JackSocketClientChannel.h

@@ -12,7 +12,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public License
-along with this program; if not, write to the Free Software 
+along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 */
@@ -77,12 +77,14 @@ class JackSocketClientChannel : public detail::JackClientChannelInterface, publi
 
         void PortConnect(int refnum, jack_port_id_t src, jack_port_id_t dst, int* result);
         void PortDisconnect(int refnum, jack_port_id_t src, jack_port_id_t dst, int* result);
-        
+
         void PortRename(int refnum, jack_port_id_t port, const char* name, int* result);
 
         void SetBufferSize(jack_nframes_t buffer_size, int* result);
         void SetFreewheel(int onoff, int* result);
 
+        void ComputeTotalLatencies(int* result);
+
         void ReleaseTimebase(int refnum, int* result);
         void SetTimebaseCallback(int refnum, int conditional, int* result);
 

posix/JackSocketServerChannel.cpp

@@ -332,6 +332,17 @@ bool JackSocketServerChannel::HandleRequest(int fd)
             break;
         }
 
+         case JackRequest::kComputeTotalLatencies: {
+            jack_log("JackRequest::ComputeTotalLatencies");
+            JackComputeTotalLatenciesRequest req;
+            JackResult res;
+            if (req.Read(socket) == 0)
+                res.fResult = fServer->GetEngine()->ComputeTotalLatencies();
+            if (res.Write(socket) < 0)
+                jack_error("JackRequest::ComputeTotalLatencies write error");
+            break;
+        }
+
         case JackRequest::kReleaseTimebase: {
             jack_log("JackRequest::ReleaseTimebase");
             JackReleaseTimebaseRequest req;

windows/JackWinNamedPipeClientChannel.cpp

@@ -1,20 +1,20 @@
 /*
  Copyright (C) 2004-2008 Grame
- 
+
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.
- 
+
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Lesser General Public License for more details.
- 
+
  You should have received a copy of the GNU Lesser General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- 
+
  */
 
 
@@ -246,6 +246,13 @@ void JackWinNamedPipeClientChannel::SetFreewheel(int onoff, int* result)
     ServerSyncCall(&req, &res, result);
 }
 
+void JackWinNamedPipeClientChannel::ComputeTotalLatencies(int* result)
+{
+    JackComputeTotalLatenciesRequest req;
+    JackResult res;
+    ServerSyncCall(&req, &res, result);
+}
+
 void JackWinNamedPipeClientChannel::SessionNotify(int refnum, const char* target, jack_session_event_type_t type, const char* path, jack_session_command_t** result)
 {
     JackSessionNotifyRequest req(refnum, target, type, path);

windows/JackWinNamedPipeClientChannel.h

@@ -81,6 +81,7 @@ class JackWinNamedPipeClientChannel : public detail::JackClientChannelInterface,
 
         void SetBufferSize(jack_nframes_t buffer_size, int* result);
         void SetFreewheel(int onoff, int* result);
+        void ComputeTotalLatencies(int* result);
 
         void ReleaseTimebase(int refnum, int* result);
         void SetTimebaseCallback(int refnum, int conditional, int* result);