Jack2 1.9.7
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00001 /* 00002 Copyright (C) 2004-2008 Grame 00003 00004 This program is free software; you can redistribute it and/or modify 00005 it under the terms of the GNU Lesser General Public License as published by 00006 the Free Software Foundation; either version 2.1 of the License, or 00007 (at your option) any later version. 00008 00009 This program is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 GNU Lesser General Public License for more details. 00013 00014 You should have received a copy of the GNU Lesser General Public License 00015 along with this program; if not, write to the Free Software 00016 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 00018 */ 00019 00020 #include "JackSocketServerNotifyChannel.h" 00021 #include "JackError.h" 00022 #include "JackRequest.h" 00023 #include "JackConstants.h" 00024 #include "JackNotification.h" 00025 #include "JackServerGlobals.h" 00026 00027 namespace Jack 00028 { 00029 00030 int JackSocketServerNotifyChannel::Open(const char* server_name) 00031 { 00032 if (fRequestSocket.Connect(jack_server_dir, server_name, 0) < 0) { 00033 jack_error("Cannot connect to server socket"); 00034 return -1; 00035 } else { 00036 fRequestSocket.SetNonBlocking(true); 00037 JackServerGlobals::fRTNotificationSocket = fRequestSocket.GetFd(); 00038 return 0; 00039 } 00040 } 00041 00042 void JackSocketServerNotifyChannel::Close() 00043 { 00044 fRequestSocket.Close(); 00045 } 00046 00047 /* 00048 The requirement is that the Notification from RT thread can be delivered... not sure using a socket is adequate here... 00049 Can the write operation block? 00050 A non blocking write operation shoud be used : check if write can succeed, and ignore the notification otherwise 00051 (since its mainly used for XRun, ignoring a notification is OK, successive XRun will come...) 00052 */ 00053 void JackSocketServerNotifyChannel::Notify(int refnum, int notify, int value) 00054 { 00055 JackClientNotificationRequest req(refnum, notify, value); 00056 if (req.Write(&fRequestSocket) < 0) { 00057 jack_error("Could not write request ref = %d notify = %d", refnum, notify); 00058 } 00059 } 00060 00061 void JackSocketServerNotifyChannel::NotifyQuit() 00062 { 00063 JackClientNotificationRequest req(-1, kQUIT, 0); 00064 if (req.Write(&fRequestSocket) < 0) { 00065 jack_error("Could not write request ref = %d notify = %d", -1, kQUIT); 00066 } 00067 } 00068 00069 00070 } // end of namespace 00071 00072