gfx/ipc/SharedDIB.cpp@925c144e1f1f (annotated)
gfx/ipc/SharedDIB.cpp
Fri, 16 Jan 2015 18:13:44 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 18:13:44 +0100
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
- permissions
- -rw-r--r--
Integrate suggestion from review to improve consistency with existing code.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "SharedDIB.h" |
| michael@0 | 7 | |
| michael@0 | 8 | namespace mozilla { |
| michael@0 | 9 | namespace gfx { |
| michael@0 | 10 | |
| michael@0 | 11 | SharedDIB::SharedDIB() : |
| michael@0 | 12 | mShMem(nullptr) |
| michael@0 | 13 | { |
| michael@0 | 14 | } |
| michael@0 | 15 | |
| michael@0 | 16 | SharedDIB::~SharedDIB() |
| michael@0 | 17 | { |
| michael@0 | 18 | Close(); |
| michael@0 | 19 | } |
| michael@0 | 20 | |
| michael@0 | 21 | nsresult |
| michael@0 | 22 | SharedDIB::Create(uint32_t aSize) |
| michael@0 | 23 | { |
| michael@0 | 24 | Close(); |
| michael@0 | 25 | |
| michael@0 | 26 | mShMem = new base::SharedMemory(); |
| michael@0 | 27 | if (!mShMem || !mShMem->Create("", false, false, aSize)) |
| michael@0 | 28 | return NS_ERROR_OUT_OF_MEMORY; |
| michael@0 | 29 | |
| michael@0 | 30 | return NS_OK; |
| michael@0 | 31 | } |
| michael@0 | 32 | |
| michael@0 | 33 | bool |
| michael@0 | 34 | SharedDIB::IsValid() |
| michael@0 | 35 | { |
| michael@0 | 36 | if (!mShMem) |
| michael@0 | 37 | return false; |
| michael@0 | 38 | |
| michael@0 | 39 | return mShMem->IsHandleValid(mShMem->handle()); |
| michael@0 | 40 | } |
| michael@0 | 41 | |
| michael@0 | 42 | nsresult |
| michael@0 | 43 | SharedDIB::Close() |
| michael@0 | 44 | { |
| michael@0 | 45 | delete mShMem; |
| michael@0 | 46 | |
| michael@0 | 47 | mShMem = nullptr; |
| michael@0 | 48 | |
| michael@0 | 49 | return NS_OK; |
| michael@0 | 50 | } |
| michael@0 | 51 | |
| michael@0 | 52 | nsresult |
| michael@0 | 53 | SharedDIB::Attach(Handle aHandle, uint32_t aSize) |
| michael@0 | 54 | { |
| michael@0 | 55 | Close(); |
| michael@0 | 56 | |
| michael@0 | 57 | mShMem = new base::SharedMemory(aHandle, false); |
| michael@0 | 58 | if(!mShMem) |
| michael@0 | 59 | return NS_ERROR_OUT_OF_MEMORY; |
| michael@0 | 60 | |
| michael@0 | 61 | return NS_OK; |
| michael@0 | 62 | } |
| michael@0 | 63 | |
| michael@0 | 64 | nsresult |
| michael@0 | 65 | SharedDIB::ShareToProcess(base::ProcessHandle aChildProcess, Handle *aChildHandle) |
| michael@0 | 66 | { |
| michael@0 | 67 | if (!mShMem) |
| michael@0 | 68 | return NS_ERROR_UNEXPECTED; |
| michael@0 | 69 | |
| michael@0 | 70 | if (!mShMem->ShareToProcess(aChildProcess, aChildHandle)) |
| michael@0 | 71 | return NS_ERROR_UNEXPECTED; |
| michael@0 | 72 | |
| michael@0 | 73 | return NS_OK; |
| michael@0 | 74 | } |
| michael@0 | 75 | |
| michael@0 | 76 | } // gfx |
| michael@0 | 77 | } // mozilla |
