Jack2  1.9.9
JackWinNamedPipeNotifyChannel.cpp
1 /*
2  Copyright (C) 2004-2008 Grame
3 
4  This program is free software; you can redistribute it and/or modify
5  it under the terms of the GNU Lesser General Public License as published by
6  the Free Software Foundation; either version 2.1 of the License, or
7  (at your option) any later version.
8 
9  This program is distributed in the hope that it will be useful,
10  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  GNU Lesser General Public License for more details.
13 
14  You should have received a copy of the GNU Lesser General Public License
15  along with this program; if not, write to the Free Software
16  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 
18  */
19 
20 
21 #include "JackRequest.h"
22 #include "JackWinNamedPipeNotifyChannel.h"
23 #include "JackError.h"
24 #include "JackConstants.h"
25 
26 namespace Jack
27 {
28 
29 // Server to client
30 int JackWinNamedPipeNotifyChannel::Open(const char* name)
31 {
32  jack_log("JackWinNamedPipeNotifyChannel::Open name = %s", name);
33 
34  // Connect to client listen pipe
35  if (fNotifyPipe.Connect(jack_client_dir, name, 0) < 0) {
36  jack_error("Cannot connect client pipe");
37  return -1;
38  }
39  // TODO : use a time out for notifications
40  fNotifyPipe.SetReadTimeOut(SOCKET_TIME_OUT);
41  return 0;
42 }
43 
44 void JackWinNamedPipeNotifyChannel::Close()
45 {
46  jack_log("JackWinNamedPipeNotifyChannel::Close");
47  fNotifyPipe.Close();
48 }
49 
50 void JackWinNamedPipeNotifyChannel::ClientNotify(int refnum, const char* name, int notify, int sync, const char* message, int value1, int value2, int* result)
51 {
52  JackClientNotification event(name, refnum, notify, sync, message, value1, value2);
53  JackResult res;
54 
55  // Send notification
56  if (event.Write(&fNotifyPipe) < 0) {
57  jack_error("Could not write notification");
58  *result = -1;
59  return;
60  }
61 
62  // Read the result in "synchronous" mode only
63  if (sync) {
64  // Get result : use a time out
65  if (res.Read(&fNotifyPipe) < 0) {
66  jack_error("Could not read result");
67  *result = -1;
68  } else {
69  *result = res.fResult;
70  }
71  } else {
72  *result = 0;
73  }
74 }
75 
76 } // end of namespace
77 
78 
SERVER_EXPORT void jack_error(const char *fmt,...)
Definition: JackError.cpp:91
SERVER_EXPORT void jack_log(const char *fmt,...)
Definition: JackError.cpp:107