2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * Authors: Nathan Binkert
31 #include <netinet/in.h>
32 #include <netinet/tcp.h>
33 #include <sys/socket.h>
34 #include <sys/types.h>
39 #include "base/misc.hh"
40 #include "base/socket.hh"
41 #include "base/types.hh"
45 bool ListenSocket::listeningDisabled
= false;
46 bool ListenSocket::anyListening
= false;
49 ListenSocket::disableAll()
52 panic("Too late to disable all listeners, already have a listener");
53 listeningDisabled
= true;
57 ListenSocket::allDisabled()
59 return listeningDisabled
;
62 ////////////////////////////////////////////////////////////////////////
66 ListenSocket::ListenSocket()
67 : listening(false), fd(-1)
70 ListenSocket::~ListenSocket()
76 // Create a socket and configure it for listening
78 ListenSocket::listen(int port
, bool reuse
)
81 panic("Socket already listening!");
83 fd
= ::socket(PF_INET
, SOCK_STREAM
, 0);
85 panic("Can't create socket:%s !", strerror(errno
));
89 if (::setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, (char *)&i
,
91 panic("ListenSocket(listen): setsockopt() SO_REUSEADDR failed!");
94 struct sockaddr_in sockaddr
;
95 sockaddr
.sin_family
= PF_INET
;
96 sockaddr
.sin_addr
.s_addr
= INADDR_ANY
;
98 sockaddr
.sin_port
= htons(port
);
99 int ret
= ::bind(fd
, (struct sockaddr
*)&sockaddr
, sizeof (sockaddr
));
101 if (ret
== -1 && errno
!= EADDRINUSE
)
102 panic("ListenSocket(listen): bind() failed!");
106 if (::listen(fd
, 1) == -1)
107 panic("ListenSocket(listen): listen() failed!");
116 // Open a connection. Accept will block, so if you don't want it to,
117 // make sure a connection is ready before you call accept.
119 ListenSocket::accept(bool nodelay
)
121 struct sockaddr_in sockaddr
;
122 socklen_t slen
= sizeof (sockaddr
);
123 int sfd
= ::accept(fd
, (struct sockaddr
*)&sockaddr
, &slen
);
124 if (sfd
!= -1 && nodelay
) {
126 ::setsockopt(sfd
, IPPROTO_TCP
, TCP_NODELAY
, (char *)&i
, sizeof(i
));