common/JackGraphManager.h

   1 /*
   2 Copyright (C) 2001 Paul Davis
   3 Copyright (C) 2004-2008 Grame
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19 */
  20
  21 #ifndef __JackGraphManager__
  22 #define __JackGraphManager__
  23
  24 #include "JackShmMem.h"
  25 #include "JackPort.h"
  26 #include "JackConstants.h"
  27 #include "JackConnectionManager.h"
  28 #include "JackAtomicState.h"
  29 #include "JackPlatformPlug.h"
  30 #include "JackSystemDeps.h"
  31
  32
  33 namespace Jack
  34 {
  35
  36 /*!
  37 \brief Graph manager: contains the connection manager and the port array.
  38 */
  39
  40 class SERVER_EXPORT JackGraphManager : public JackShmMem, public JackAtomicState<JackConnectionManager>
  41 {
  42
  43     private:
  44
  45                 JackPort fPortArray[PORT_NUM];
  46         JackClientTiming fClientTiming[CLIENT_NUM];
  47
  48         jack_port_id_t AllocatePortAux(int refnum, const char* port_name, const char* port_type, JackPortFlags flags);
  49         void GetConnectionsAux(JackConnectionManager* manager, const char** res, jack_port_id_t port_index);
  50         void GetPortsAux(const char** matching_ports, const char* port_name_pattern, const char* type_name_pattern, unsigned long flags);
  51         float* GetBuffer(jack_port_id_t port_index);
  52         void* GetBufferAux(JackConnectionManager* manager, jack_port_id_t port_index, jack_nframes_t frames);
  53         jack_nframes_t ComputeTotalLatencyAux(jack_port_id_t port_index, jack_port_id_t src_port_index, JackConnectionManager* manager, int hop_count);
  54
  55     public:
  56
  57         JackGraphManager()
  58         {}
  59         ~JackGraphManager()
  60         {}
  61
  62         void SetBufferSize(jack_nframes_t buffer_size);
  63
  64         // Ports management
  65         jack_port_id_t AllocatePort(int refnum, const char* port_name, const char* port_type, JackPortFlags flags, jack_nframes_t buffer_size);
  66         int ReleasePort(int refnum, jack_port_id_t port_index);
  67         void GetInputPorts(int refnum, jack_int_t* res);
  68         void GetOutputPorts(int refnum, jack_int_t* res);
  69         void RemoveAllPorts(int refnum);
  70         void DisconnectAllPorts(int refnum);
  71
  72         JackPort* GetPort(jack_port_id_t index);
  73         jack_port_id_t GetPort(const char* name);
  74         int ComputeTotalLatency(jack_port_id_t port_index);
  75         int ComputeTotalLatencies();
  76         int RequestMonitor(jack_port_id_t port_index, bool onoff);
  77
  78         // Connections management
  79         int Connect(jack_port_id_t src_index, jack_port_id_t dst_index);
  80         int Disconnect(jack_port_id_t src_index, jack_port_id_t dst_index);
  81         int IsConnected(jack_port_id_t port_src, jack_port_id_t port_dst);
  82
  83         // RT, client
  84         int GetConnectionsNum(jack_port_id_t port_index)
  85         {
  86             JackConnectionManager* manager = ReadCurrentState();
  87             return manager->Connections(port_index);
  88         }
  89
  90         const char** GetConnections(jack_port_id_t port_index);
  91         void GetConnections(jack_port_id_t port_index, jack_int_t* connections);  // TODO
  92         const char** GetPorts(const char* port_name_pattern, const char* type_name_pattern, unsigned long flags);
  93
  94         int GetTwoPorts(const char* src, const char* dst, jack_port_id_t* src_index, jack_port_id_t* dst_index);
  95         int CheckPorts(jack_port_id_t port_src, jack_port_id_t port_dst);
  96
  97         void DisconnectAllInput(jack_port_id_t port_index);
  98         void DisconnectAllOutput(jack_port_id_t port_index);
  99         int DisconnectAll(jack_port_id_t port_index);
 100
 101         bool IsDirectConnection(int ref1, int ref2);
 102         void DirectConnect(int ref1, int ref2);
 103         void DirectDisconnect(int ref1, int ref2);
 104
 105         void Activate(int refnum);
 106         void Deactivate(int refnum);
 107
 108         int GetInputRefNum(jack_port_id_t port_index);
 109         int GetOutputRefNum(jack_port_id_t port_index);
 110
 111         // Buffer management
 112         void* GetBuffer(jack_port_id_t port_index, jack_nframes_t frames);
 113
 114         // Activation management
 115         void RunCurrentGraph();
 116         bool RunNextGraph();
 117         bool IsFinishedGraph();
 118
 119         void InitRefNum(int refnum);
 120         int ResumeRefNum(JackClientControl* control, JackSynchro* table);
 121         int SuspendRefNum(JackClientControl* control, JackSynchro* table, long usecs);
 122
 123         JackClientTiming* GetClientTiming(int refnum)
 124         {
 125             return &fClientTiming[refnum];
 126         }
 127
 128         void Save(JackConnectionManager* dst);
 129         void Restore(JackConnectionManager* src);
 130
 131 } POST_PACKED_STRUCTURE;
 132
 133
 134 } // end of namespace
 135
 136 #endif
 137