The Tor Browser / file comparison
comparison: ipc/glue/Transport_win.cpp
ipc/glue/Transport_win.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 "base/message_loop.h" | |
| 9 #include "chrome/common/child_process_info.h" | |
| 10 | |
| 11 #include "mozilla/ipc/Transport.h" | |
| 12 | |
| 13 using namespace base; | |
| 14 using namespace std; | |
| 15 | |
| 16 namespace mozilla { | |
| 17 namespace ipc { | |
| 18 | |
| 19 bool | |
| 20 CreateTransport(ProcessHandle aProcOne, ProcessHandle /*unused*/, | |
| 21 TransportDescriptor* aOne, TransportDescriptor* aTwo) | |
| 22 { | |
| 23 // This id is used to name the IPC pipe. The pointer passed to this | |
| 24 // function isn't significant. | |
| 25 wstring id = ChildProcessInfo::GenerateRandomChannelID(aOne); | |
| 26 // Use MODE_SERVER to force creation of the pipe | |
| 27 Transport t(id, Transport::MODE_SERVER, nullptr); | |
| 28 HANDLE serverPipe = t.GetServerPipeHandle(); | |
| 29 if (!serverPipe) { | |
| 30 return false; | |
| 31 } | |
| 32 | |
| 33 // NB: we create the server pipe immediately, instead of just | |
| 34 // grabbing an ID, on purpose. In the current setup, the client | |
| 35 // needs to connect to an existing server pipe, so to prevent race | |
| 36 // conditions, we create the server side here and then dup it to the | |
| 37 // eventual server process. | |
| 38 HANDLE serverDup; | |
| 39 DWORD access = 0; | |
| 40 DWORD options = DUPLICATE_SAME_ACCESS; | |
| 41 if (!DuplicateHandle(GetCurrentProcess(), serverPipe, aProcOne, | |
| 42 &serverDup, | |
| 43 access, | |
| 44 FALSE/*not inheritable*/, | |
| 45 options)) { | |
| 46 return false; | |
| 47 } | |
| 48 | |
| 49 aOne->mPipeName = aTwo->mPipeName = id; | |
| 50 aOne->mServerPipe = serverDup; | |
| 51 aTwo->mServerPipe = INVALID_HANDLE_VALUE; | |
| 52 return true; | |
| 53 } | |
| 54 | |
| 55 Transport* | |
| 56 OpenDescriptor(const TransportDescriptor& aTd, Transport::Mode aMode) | |
| 57 { | |
| 58 return new Transport(aTd.mPipeName, aTd.mServerPipe, aMode, nullptr); | |
| 59 } | |
| 60 | |
| 61 Transport* | |
| 62 OpenDescriptor(const FileDescriptor& aFd, Transport::Mode aMode) | |
| 63 { | |
| 64 NS_NOTREACHED("Not implemented!"); | |
| 65 return nullptr; | |
| 66 } | |
| 67 | |
| 68 void | |
| 69 CloseDescriptor(const TransportDescriptor& aTd) | |
| 70 { | |
| 71 CloseHandle(aTd.mServerPipe); | |
| 72 } | |
| 73 | |
| 74 } // namespace ipc | |
| 75 } // namespace mozilla |
