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 General Public License as published by
7  the Free Software Foundation; either version 2 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 General Public License for more details.
14 
15  You should have received a copy of the GNU General Public License
16  along with this program; if not, write to the Free Software
17  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 
19 */
20 
21 #include "JackSystemDeps.h"
22 #include "JackWaitThreadedDriver.h"
23 #include "JackGlobals.h"
24 #include "JackClient.h"
25 #include "JackEngineControl.h"
26 #include "JackException.h"
27 #include "JackError.h"
28 #include "JackTools.h"
29 
30 namespace Jack
31 {
32 
Init()33 bool JackWaitThreadedDriver::Init()
34 {
35     return (fStarter.Start() == 0);
36 }
37 
Execute()38 bool JackWaitThreadedDriver::Execute()
39 {
40     SetRealTime();
41 
42     // Process a null cycle until NetDriver has started
43     while (!fStarter.fRunning && fThread.GetStatus() == JackThread::kRunning) {
44         // Use base class method
45         assert(static_cast<JackWaiterDriver*>(fDriver));
46         static_cast<JackWaiterDriver*>(fDriver)->ProcessNull();
47     }
48 
49     return ExecuteReal();
50 }
51 
ExecuteReal()52 bool JackWaitThreadedDriver::ExecuteReal()
53 {
54     try {
55 
56         // Switch to keep running even in case of error
57         while (fThread.GetStatus() == JackThread::kRunning) {
58             fDriver->Process();
59         }
60 
61         return false;
62 
63     } catch (JackNetException& e) {
64 
65         e.PrintMessage();
66         jack_info("Driver is restarted");
67         fThread.DropSelfRealTime();
68 
69         // Thread has been stopped...
70         if (fThread.GetStatus() == JackThread::kIdle) {
71             return false;
72         }
73 
74         // Thread in kIniting status again...
75         fThread.SetStatus(JackThread::kIniting);
76         if (Init()) {
77             // Thread in kRunning status again...
78             fThread.SetStatus(JackThread::kRunning);
79             return true;
80         }
81 
82         return false;
83     }
84 }
85 
86 } // end of namespace
87