Bug 564086, part l: POSIX impl of Transport API. r=bsmedberg
authorChris Jones <jones.chris.g@gmail.com>
Fri, 03 Jun 2011 13:33:56 -0500
changeset 71047 bfca3d0525da29cfb18fccb828f7ceccff283c7c
parent 71046 55159c6e44cb285217fb55a73617d6883a31cb73
child 71048 39217d4a17fbb820afaf1f9912499addb97b45a9
push idunknown
push userunknown
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reviewersbsmedberg
bugs564086
milestone7.0a1
Bug 564086, part l: POSIX impl of Transport API. r=bsmedberg
ipc/glue/Transport_posix.cpp
ipc/glue/Transport_posix.h
new file mode 100644
--- /dev/null
+++ b/ipc/glue/Transport_posix.cpp
@@ -0,0 +1,92 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at:
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Code.
+ *
+ * The Initial Developer of the Original Code is
+ *   The Mozilla Foundation
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Chris Jones <jones.chris.g@gmail.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include <unistd.h>
+
+#include <string>
+
+#include "chrome/common/child_process_info.h"
+
+#include "mozilla/ipc/Transport.h"
+
+using namespace base;
+using namespace std;
+
+namespace mozilla {
+namespace ipc {
+
+bool
+CreateTransport(ProcessHandle /*unused*/, ProcessHandle /*unused*/,
+                TransportDescriptor* aOne, TransportDescriptor* aTwo)
+{
+  // Gecko doesn't care about this random ID, and the argument to this
+  // function isn't really necessary, it can be just any random
+  // pointer value
+  wstring id = ChildProcessInfo::GenerateRandomChannelID(aOne);
+  // Use MODE_SERVER to force creation of the socketpair
+  Transport t(id, Transport::MODE_SERVER, nsnull);
+  int fd1 = t.GetServerFileDescriptor();
+  int fd2, dontcare;
+  t.GetClientFileDescriptorMapping(&fd2, &dontcare);
+  if (fd1 < 0 || fd2 < 0) {
+    return false;
+  }
+
+  // The Transport closes these fds when it goes out of scope, so we
+  // dup them here
+  fd1 = dup(fd1);
+  fd2 = dup(fd2);
+  if (fd1 < 0 || fd2 < 0) {
+    return false;
+  }
+
+  aOne->mFd = FileDescriptor(fd1, true/*close after sending*/);
+  aTwo->mFd = FileDescriptor(fd2, true/*close after sending*/);
+  return true;
+}
+
+Transport*
+OpenDescriptor(const TransportDescriptor& aTd, Transport::Mode aMode)
+{
+  return new Transport(aTd.mFd.fd, aMode, nsnull);
+}
+
+} // namespace ipc
+} // namespace mozilla
new file mode 100644
--- /dev/null
+++ b/ipc/glue/Transport_posix.h
@@ -0,0 +1,78 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at:
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Code.
+ *
+ * The Initial Developer of the Original Code is
+ *   The Mozilla Foundation
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Chris Jones <jones.chris.g@gmail.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef mozilla_ipc_Transport_posix_h
+#define mozilla_ipc_Transport_posix_h 1
+
+#include "IPC/IPCMessageUtils.h"
+
+
+namespace mozilla {
+namespace ipc {
+
+struct TransportDescriptor
+{
+  base::FileDescriptor mFd;
+};
+
+} // namespace ipc
+} // namespace mozilla
+
+
+namespace IPC {
+
+template<>
+struct ParamTraits<mozilla::ipc::TransportDescriptor>
+{
+  typedef mozilla::ipc::TransportDescriptor paramType;
+  static void Write(Message* aMsg, const paramType& aParam)
+  {
+    WriteParam(aMsg, aParam.mFd);
+  }
+  static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
+  {
+    return ReadParam(aMsg, aIter, &aResult->mFd);
+  }
+};
+
+} // namespace IPC
+
+
+#endif  // mozilla_ipc_Transport_posix_h