common/JackClientControl.h

   1 /*
   2 Copyright (C) 2003 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 __JackClientControl__
  22 #define __JackClientControl__
  23
  24 #include "JackShmMem.h"
  25 #include "JackPort.h"
  26 #include "JackSynchro.h"
  27 #include "JackNotification.h"
  28 #include "JackSession.h"
  29
  30 namespace Jack
  31 {
  32
  33 /*!
  34 \brief Client control possibly in shared memory.
  35 */
  36
  37 PRE_PACKED_STRUCTURE
  38 struct JackClientControl : public JackShmMemAble
  39 {
  40     char fName[JACK_CLIENT_NAME_SIZE + 1];
  41     bool fCallback[kMaxNotification];
  42     volatile jack_transport_state_t fTransportState;
  43     volatile bool fTransportSync;      /* Will be true when slow-sync cb has to be called */
  44     volatile bool fTransportTimebase;  /* Will be true when timebase cb is called with new_pos on */
  45     int fRefNum;
  46     int fPID;
  47     bool fActive;
  48
  49     int fSessionID;
  50     char fSessionCommand[JACK_SESSION_COMMAND_SIZE];
  51     jack_session_flags_t fSessionFlags;
  52
  53     JackClientControl(const char* name, int pid, int refnum, int uuid)
  54     {
  55         Init(name, pid, refnum, uuid);
  56     }
  57
  58     JackClientControl(const char* name)
  59     {
  60         Init(name, 0, -1, -1);
  61     }
  62
  63     JackClientControl()
  64     {
  65         Init("", 0, -1, -1);
  66     }
  67
  68     void Init(const char* name, int pid, int refnum, int uuid)
  69     {
  70         strcpy(fName, name);
  71         for (int i = 0; i < kMaxNotification; i++)
  72             fCallback[i] = false;
  73         // Always activated
  74         fCallback[kAddClient] = true;
  75         fCallback[kRemoveClient] = true;
  76         fCallback[kActivateClient] = true;
  77         fCallback[kLatencyCallback] = true;
  78         // So that driver synchro are correctly setup in "flush" or "normal" mode
  79         fCallback[kStartFreewheelCallback] = true;
  80         fCallback[kStopFreewheelCallback] = true;
  81         fRefNum = refnum;
  82         fPID = pid;
  83         fTransportState = JackTransportStopped;
  84         fTransportSync = false;
  85         fTransportTimebase = false;
  86         fActive = false;
  87
  88         fSessionID = uuid;
  89     }
  90
  91 } POST_PACKED_STRUCTURE;
  92
  93 } // end of namespace
  94
  95
  96 #endif