Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
2012-10-24 19:18:57 +00:00
parent f7ff71bd46
commit b41eec3f65
3222 changed files with 658579 additions and 1 deletions
--- a/simulators/gem5/src/base/socket.cc
+++ b/simulators/gem5/src/base/socket.cc
@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2002-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Nathan Binkert
+ */
+
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <cerrno>
+
+#include "base/misc.hh"
+#include "base/socket.hh"
+#include "base/types.hh"
+
+using namespace std;
+
+bool ListenSocket::listeningDisabled = false;
+bool ListenSocket::anyListening = false;
+
+void
+ListenSocket::disableAll()
+{
+    if (anyListening)
+        panic("Too late to disable all listeners, already have a listener");
+    listeningDisabled = true;
+}
+
+bool
+ListenSocket::allDisabled()
+{
+    return listeningDisabled;
+}
+
+////////////////////////////////////////////////////////////////////////
+//
+//
+
+ListenSocket::ListenSocket()
+    : listening(false), fd(-1)
+{}
+
+ListenSocket::~ListenSocket()
+{
+    if (fd != -1)
+        close(fd);
+}
+
+// Create a socket and configure it for listening
+bool
+ListenSocket::listen(int port, bool reuse)
+{
+    if (listening)
+        panic("Socket already listening!");
+
+    fd = ::socket(PF_INET, SOCK_STREAM, 0);
+    if (fd < 0)
+        panic("Can't create socket:%s !", strerror(errno));
+
+    if (reuse) {
+        int i = 1;
+        if (::setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&i,
+                         sizeof(i)) < 0)
+            panic("ListenSocket(listen): setsockopt() SO_REUSEADDR failed!");
+    }
+
+    struct sockaddr_in sockaddr;
+    sockaddr.sin_family = PF_INET;
+    sockaddr.sin_addr.s_addr = INADDR_ANY;
+
+    sockaddr.sin_port = htons(port);
+    int ret = ::bind(fd, (struct sockaddr *)&sockaddr, sizeof (sockaddr));
+    if (ret != 0) {
+        if (ret == -1 && errno != EADDRINUSE)
+            panic("ListenSocket(listen): bind() failed!");
+        return false;
+    }
+
+    if (::listen(fd, 1) == -1)
+        panic("ListenSocket(listen): listen() failed!");
+
+    listening = true;
+
+    anyListening = true;
+    return true;
+}
+
+
+// Open a connection.  Accept will block, so if you don't want it to,
+// make sure a connection is ready before you call accept.
+int
+ListenSocket::accept(bool nodelay)
+{
+    struct sockaddr_in sockaddr;
+    socklen_t slen = sizeof (sockaddr);
+    int sfd = ::accept(fd, (struct sockaddr *)&sockaddr, &slen);
+    if (sfd != -1 && nodelay) {
+        int i = 1;
+        ::setsockopt(sfd, IPPROTO_TCP, TCP_NODELAY, (char *)&i, sizeof(i));
+    }
+
+    return sfd;
+}