ipc/glue/Transport_posix.cpp@6474c204b198 (annotated)
ipc/glue/Transport_posix.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * vim: sw=2 ts=8 et : |
| michael@0 | 3 | */ |
| michael@0 | 4 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 5 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 6 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 7 | |
| michael@0 | 8 | #include <unistd.h> |
| michael@0 | 9 | |
| michael@0 | 10 | #include <string> |
| michael@0 | 11 | |
| michael@0 | 12 | #include "chrome/common/child_process_info.h" |
| michael@0 | 13 | |
| michael@0 | 14 | #include "mozilla/ipc/Transport.h" |
| michael@0 | 15 | #include "mozilla/ipc/FileDescriptor.h" |
| michael@0 | 16 | |
| michael@0 | 17 | using namespace base; |
| michael@0 | 18 | using namespace std; |
| michael@0 | 19 | |
| michael@0 | 20 | namespace mozilla { |
| michael@0 | 21 | namespace ipc { |
| michael@0 | 22 | |
| michael@0 | 23 | bool |
| michael@0 | 24 | CreateTransport(ProcessHandle /*unused*/, ProcessHandle /*unused*/, |
| michael@0 | 25 | TransportDescriptor* aOne, TransportDescriptor* aTwo) |
| michael@0 | 26 | { |
| michael@0 | 27 | // Gecko doesn't care about this random ID, and the argument to this |
| michael@0 | 28 | // function isn't really necessary, it can be just any random |
| michael@0 | 29 | // pointer value |
| michael@0 | 30 | wstring id = ChildProcessInfo::GenerateRandomChannelID(aOne); |
| michael@0 | 31 | // Use MODE_SERVER to force creation of the socketpair |
| michael@0 | 32 | Transport t(id, Transport::MODE_SERVER, nullptr); |
| michael@0 | 33 | int fd1 = t.GetFileDescriptor(); |
| michael@0 | 34 | int fd2, dontcare; |
| michael@0 | 35 | t.GetClientFileDescriptorMapping(&fd2, &dontcare); |
| michael@0 | 36 | if (fd1 < 0 || fd2 < 0) { |
| michael@0 | 37 | return false; |
| michael@0 | 38 | } |
| michael@0 | 39 | |
| michael@0 | 40 | // The Transport closes these fds when it goes out of scope, so we |
| michael@0 | 41 | // dup them here |
| michael@0 | 42 | fd1 = dup(fd1); |
| michael@0 | 43 | fd2 = dup(fd2); |
| michael@0 | 44 | if (fd1 < 0 || fd2 < 0) { |
| michael@0 | 45 | return false; |
| michael@0 | 46 | } |
| michael@0 | 47 | |
| michael@0 | 48 | aOne->mFd = base::FileDescriptor(fd1, true/*close after sending*/); |
| michael@0 | 49 | aTwo->mFd = base::FileDescriptor(fd2, true/*close after sending*/); |
| michael@0 | 50 | return true; |
| michael@0 | 51 | } |
| michael@0 | 52 | |
| michael@0 | 53 | Transport* |
| michael@0 | 54 | OpenDescriptor(const TransportDescriptor& aTd, Transport::Mode aMode) |
| michael@0 | 55 | { |
| michael@0 | 56 | return new Transport(aTd.mFd.fd, aMode, nullptr); |
| michael@0 | 57 | } |
| michael@0 | 58 | |
| michael@0 | 59 | Transport* |
| michael@0 | 60 | OpenDescriptor(const FileDescriptor& aFd, Transport::Mode aMode) |
| michael@0 | 61 | { |
| michael@0 | 62 | return new Transport(aFd.PlatformHandle(), aMode, nullptr); |
| michael@0 | 63 | } |
| michael@0 | 64 | |
| michael@0 | 65 | void |
| michael@0 | 66 | CloseDescriptor(const TransportDescriptor& aTd) |
| michael@0 | 67 | { |
| michael@0 | 68 | close(aTd.mFd.fd); |
| michael@0 | 69 | } |
| michael@0 | 70 | |
| michael@0 | 71 | } // namespace ipc |
| michael@0 | 72 | } // namespace mozilla |
