Jack2 1.9.6

JackSocketNotifyChannel.cpp

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 "JackRequest.h"
00021 #include "JackSocketNotifyChannel.h"
00022 #include "JackError.h"
00023 #include "JackConstants.h"
00024 
00025 namespace Jack
00026 {
00027 
00028 // Server to client
00029 int JackSocketNotifyChannel::Open(const char* name)
00030 {
00031     jack_log("JackSocketNotifyChannel::Open name = %s", name);
00032 
00033     // Connect to client listen socket
00034     if (fNotifySocket.Connect(jack_client_dir, name, 0) < 0) {
00035         jack_error("Cannot connect client socket");
00036         return -1;
00037     }
00038     
00039     // Use a time out for notifications
00040     fNotifySocket.SetReadTimeOut(SOCKET_TIME_OUT);
00041     return 0;
00042 }
00043 
00044 void JackSocketNotifyChannel::Close()
00045 {
00046     jack_log("JackSocketNotifyChannel::Close");
00047     fNotifySocket.Close();
00048 }
00049 
00050 void JackSocketNotifyChannel::ClientNotify(int refnum, const char* name, int notify, int sync, const char* message, int value1, int value2, int* result)
00051 {
00052     JackClientNotification event(name, refnum, notify, sync, message, value1, value2);
00053     JackResult res;
00054 
00055     // Send notification
00056     if (event.Write(&fNotifySocket) < 0) {
00057         jack_error("Could not write notification");
00058         fNotifySocket.Close();
00059         *result = -1;
00060         return;
00061     }
00062 
00063     // Read the result in "synchronous" mode only
00064     if (sync) {
00065         // Get result : use a time out
00066         if (res.Read(&fNotifySocket) < 0) {
00067             jack_error("Could not read result");
00068             fNotifySocket.Close();
00069             *result = -1;
00070         } else {
00071             *result = res.fResult;
00072         }
00073     } else {
00074         *result = 0;
00075     }
00076 }
00077 
00078 } // end of namespace
00079 
00080