Index: mojo/edk/system/ports_message.cc |
diff --git a/mojo/edk/system/ports_message.cc b/mojo/edk/system/ports_message.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..91fe3f3bc35a077d26196bab547267c3769a5a36 |
--- /dev/null |
+++ b/mojo/edk/system/ports_message.cc |
@@ -0,0 +1,60 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "mojo/edk/system/ports_message.h" |
+ |
+#include "mojo/edk/system/node_channel.h" |
+ |
+namespace mojo { |
+namespace edk { |
+ |
+// static |
+scoped_ptr<PortsMessage> PortsMessage::NewUserMessage(size_t num_payload_bytes, |
+ size_t num_ports, |
+ size_t num_handles) { |
+ return make_scoped_ptr( |
+ new PortsMessage(num_payload_bytes, num_ports, num_handles)); |
+} |
+ |
+PortsMessage::~PortsMessage() {} |
+ |
+PortsMessage::PortsMessage(size_t num_payload_bytes, |
+ size_t num_ports, |
+ size_t num_handles) |
+ : ports::Message(num_payload_bytes, num_ports) { |
+ size_t size = num_header_bytes_ + num_ports_bytes_ + num_payload_bytes; |
+ void* ptr; |
+ channel_message_ = NodeChannel::CreatePortsMessage(size, &ptr, num_handles); |
+ InitializeUserMessageHeader(ptr); |
+} |
+ |
+PortsMessage::PortsMessage(size_t num_header_bytes, |
+ size_t num_payload_bytes, |
+ size_t num_ports_bytes, |
+ Channel::MessagePtr channel_message) |
+ : ports::Message(num_header_bytes, |
+ num_payload_bytes, |
+ num_ports_bytes) { |
+ if (channel_message) { |
+ channel_message_ = std::move(channel_message); |
+ void* data; |
+ size_t num_data_bytes; |
+ NodeChannel::GetPortsMessageData(channel_message_.get(), &data, |
+ &num_data_bytes); |
+ start_ = static_cast<char*>(data); |
+ } else { |
+ // TODO: Clean this up. In practice this branch of the constructor should |
+ // only be reached from Node-internal calls to AllocMessage, which never |
+ // carry ports or non-header bytes. |
+ CHECK_EQ(num_payload_bytes, 0u); |
+ CHECK_EQ(num_ports_bytes, 0u); |
+ void* ptr; |
+ channel_message_ = |
+ NodeChannel::CreatePortsMessage(num_header_bytes, &ptr, 0); |
+ start_ = static_cast<char*>(ptr); |
+ } |
+} |
+ |
+} // namespace edk |
+} // namespace mojo |