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