1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
Copyright (C) 2000 Stefan Westerfeld
[email protected]
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include "mcoputils.h"
#include "unixserver.h"
#include "socketconnection.h"
#include "dispatcher.h"
#include "debug.h"
#define queue cqueue
#include <arpa/inet.h>
#undef queue
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
using namespace std;
using namespace Arts;
bool UnixServer::running()
{
return socketOk;
}
UnixServer::UnixServer(Dispatcher *dispatcher, const string& serverID)
{
this->dispatcher = dispatcher;
socketOk = initSocket(serverID);
if(socketOk) {
IOManager *iom = dispatcher->ioManager();
iom->watchFD(theSocket,IOType::read|IOType::except,this);
}
}
UnixServer::~UnixServer()
{
if(socketOk) {
IOManager *iom = dispatcher->ioManager();
iom->remove(this,IOType::read|IOType::except);
close(theSocket);
unlink(xserverpath.c_str());
}
}
bool UnixServer::initSocket(const string& serverID)
{
struct sockaddr_un socket_addr;
theSocket = socket(PF_UNIX,SOCK_STREAM,0);
if(theSocket < 0)
{
arts_warning("MCOP UnixServer: can't create a socket");
return false;
}
if(fcntl(theSocket,F_SETFL,O_NONBLOCK)<0)
{
arts_warning("MCOP UnixServer: can't initialize non blocking I/O");
close(theSocket);
return false;
}
int maxlen = sizeof(socket_addr.sun_path);
string pathname = MCOPUtils::createFilePath(serverID);
socket_addr.sun_family = AF_UNIX;
strncpy(socket_addr.sun_path,pathname.c_str(),maxlen);
socket_addr.sun_path[maxlen-1] = 0;
xserverpath = socket_addr.sun_path;
if ( bind( theSocket, (struct sockaddr *) &socket_addr,
sizeof(struct sockaddr_un) ) < 0 )
{
arts_warning("MCOP UnixServer: can't bind to file \"%s\"",
pathname.c_str());
close(theSocket);
return false;
}
if(listen(theSocket,16) < 0)
{
arts_warning("MCOP UnixServer: can't listen on the socket");
close(theSocket);
return false;
}
return true;
}
string UnixServer::url()
{
return string("unix:") + xserverpath;
}
void UnixServer::notifyIO(int fd, int types)
{
assert(fd == theSocket);
assert(socketOk);
arts_debug("UnixManager: got notifyIO");
if(types & IOType::read)
{
int clientfd;
struct sockaddr_un incoming;
socklen_t size_in = sizeof(struct sockaddr_un);
clientfd = accept(theSocket, (struct sockaddr*) &incoming, &size_in );
if(clientfd > 0)
{
// non blocking I/O
int flags = fcntl (fd, F_GETFL, 0);
assert (flags != -1);
int nbl_result = fcntl (fd, F_SETFL, flags | O_NONBLOCK);
assert(nbl_result >= 0);
Dispatcher::the()->initiateConnection(
new SocketConnection(clientfd));
}
}
arts_assert((types & IOType::write) == 0);
arts_assert((types & IOType::except) == 0);
}
|
