| /* |
| * Copyright (C) 2016 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "MachMessage.h" |
| |
| #if PLATFORM(COCOA) |
| |
| #include <mach/mach.h> |
| |
| namespace IPC { |
| |
| std::unique_ptr<MachMessage> MachMessage::create(CString&& messageReceiverName, CString&& messageName, size_t size) |
| { |
| void* memory = WTF::fastZeroedMalloc(sizeof(MachMessage) + size); |
| return std::unique_ptr<MachMessage> { new (NotNull, memory) MachMessage { WTFMove(messageReceiverName), WTFMove(messageName), size } }; |
| } |
| |
| MachMessage::MachMessage(CString&& messageReceiverName, CString&& messageName, size_t size) |
| : m_messageReceiverName(WTFMove(messageReceiverName)) |
| , m_messageName(WTFMove(messageName)) |
| , m_size { size } |
| { |
| } |
| |
| MachMessage::~MachMessage() |
| { |
| if (m_shouldFreeDescriptors) |
| ::mach_msg_destroy(header()); |
| } |
| |
| size_t MachMessage::messageSize(size_t bodySize, size_t portDescriptorCount, size_t memoryDescriptorCount) |
| { |
| size_t messageSize = sizeof(mach_msg_header_t) + bodySize; |
| |
| if (portDescriptorCount || memoryDescriptorCount) { |
| messageSize += sizeof(mach_msg_body_t); |
| messageSize += (portDescriptorCount * sizeof(mach_msg_port_descriptor_t)); |
| messageSize += (memoryDescriptorCount * sizeof(mach_msg_ool_descriptor_t)); |
| } |
| |
| return round_msg(messageSize); |
| } |
| |
| void MachMessage::leakDescriptors() |
| { |
| m_shouldFreeDescriptors = false; |
| } |
| |
| } |
| |
| #endif // PLATFORM(COCOA) |