1 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 : * vim: sw=2 ts=8 et :
3 : */
4 : /* ***** BEGIN LICENSE BLOCK *****
5 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6 : *
7 : * The contents of this file are subject to the Mozilla Public License Version
8 : * 1.1 (the "License"); you may not use this file except in compliance with
9 : * the License. You may obtain a copy of the License at:
10 : * http://www.mozilla.org/MPL/
11 : *
12 : * Software distributed under the License is distributed on an "AS IS" basis,
13 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14 : * for the specific language governing rights and limitations under the
15 : * License.
16 : *
17 : * The Original Code is Mozilla Code.
18 : *
19 : * The Initial Developer of the Original Code is
20 : * The Mozilla Foundation
21 : * Portions created by the Initial Developer are Copyright (C) 2010
22 : * the Initial Developer. All Rights Reserved.
23 : *
24 : * Contributor(s):
25 : * Chris Jones <jones.chris.g@gmail.com>
26 : *
27 : * Alternatively, the contents of this file may be used under the terms of
28 : * either the GNU General Public License Version 2 or later (the "GPL"), or
29 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
30 : * in which case the provisions of the GPL or the LGPL are applicable instead
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32 : * under the terms of either the GPL or the LGPL, and not to allow others to
33 : * use your version of this file under the terms of the MPL, indicate your
34 : * decision by deleting the provisions above and replace them with the notice
35 : * and other provisions required by the GPL or the LGPL. If you do not delete
36 : * the provisions above, a recipient may use your version of this file under
37 : * the terms of any one of the MPL, the GPL or the LGPL.
38 : *
39 : * ***** END LICENSE BLOCK ***** */
40 :
41 : #include <unistd.h>
42 :
43 : #include <string>
44 :
45 : #include "chrome/common/child_process_info.h"
46 :
47 : #include "mozilla/ipc/Transport.h"
48 :
49 : using namespace base;
50 : using namespace std;
51 :
52 : namespace mozilla {
53 : namespace ipc {
54 :
55 : bool
56 0 : CreateTransport(ProcessHandle /*unused*/, ProcessHandle /*unused*/,
57 : TransportDescriptor* aOne, TransportDescriptor* aTwo)
58 : {
59 : // Gecko doesn't care about this random ID, and the argument to this
60 : // function isn't really necessary, it can be just any random
61 : // pointer value
62 0 : wstring id = ChildProcessInfo::GenerateRandomChannelID(aOne);
63 : // Use MODE_SERVER to force creation of the socketpair
64 0 : Transport t(id, Transport::MODE_SERVER, nsnull);
65 0 : int fd1 = t.GetServerFileDescriptor();
66 : int fd2, dontcare;
67 0 : t.GetClientFileDescriptorMapping(&fd2, &dontcare);
68 0 : if (fd1 < 0 || fd2 < 0) {
69 0 : return false;
70 : }
71 :
72 : // The Transport closes these fds when it goes out of scope, so we
73 : // dup them here
74 0 : fd1 = dup(fd1);
75 0 : fd2 = dup(fd2);
76 0 : if (fd1 < 0 || fd2 < 0) {
77 0 : return false;
78 : }
79 :
80 0 : aOne->mFd = FileDescriptor(fd1, true/*close after sending*/);
81 0 : aTwo->mFd = FileDescriptor(fd2, true/*close after sending*/);
82 0 : return true;
83 : }
84 :
85 : Transport*
86 0 : OpenDescriptor(const TransportDescriptor& aTd, Transport::Mode aMode)
87 : {
88 0 : return new Transport(aTd.mFd.fd, aMode, nsnull);
89 : }
90 :
91 : void
92 0 : CloseDescriptor(const TransportDescriptor& aTd)
93 : {
94 0 : close(aTd.mFd.fd);
95 0 : }
96 :
97 : } // namespace ipc
98 : } // namespace mozilla
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