1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
mojo / core / data_pipe_control_message.cc [blame]
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "mojo/core/data_pipe_control_message.h"
#include "base/logging.h"
#include "mojo/core/node_controller.h"
#include "mojo/core/ports/event.h"
#include "mojo/core/user_message_impl.h"
namespace mojo {
namespace core {
void SendDataPipeControlMessage(NodeController* node_controller,
const ports::PortRef& port,
DataPipeCommand command,
uint32_t num_bytes) {
std::unique_ptr<ports::UserMessageEvent> event;
MojoResult result = UserMessageImpl::CreateEventForNewSerializedMessage(
sizeof(DataPipeControlMessage), nullptr, 0, &event);
DCHECK_EQ(MOJO_RESULT_OK, result);
DCHECK(event);
DataPipeControlMessage* data = static_cast<DataPipeControlMessage*>(
event->GetMessage<UserMessageImpl>()->user_payload());
data->command = command;
data->num_bytes = num_bytes;
int rv = node_controller->SendUserMessage(port, std::move(event));
if (rv != ports::OK && rv != ports::ERROR_PORT_PEER_CLOSED) {
DLOG(ERROR) << "Unexpected failure sending data pipe control message: "
<< rv;
}
}
} // namespace core
} // namespace mojo