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-rw-r--r--mojo/edk/system/broker_posix.cc125
1 files changed, 0 insertions, 125 deletions
diff --git a/mojo/edk/system/broker_posix.cc b/mojo/edk/system/broker_posix.cc
deleted file mode 100644
index 8742f70..0000000
--- a/mojo/edk/system/broker_posix.cc
+++ /dev/null
@@ -1,125 +0,0 @@
-// 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/broker.h"
-
-#include <fcntl.h>
-#include <unistd.h>
-
-#include <utility>
-
-#include "base/logging.h"
-#include "mojo/edk/embedder/embedder_internal.h"
-#include "mojo/edk/embedder/platform_channel_utils_posix.h"
-#include "mojo/edk/embedder/platform_handle_utils.h"
-#include "mojo/edk/embedder/platform_handle_vector.h"
-#include "mojo/edk/embedder/platform_shared_buffer.h"
-#include "mojo/edk/system/broker_messages.h"
-#include "mojo/edk/system/channel.h"
-
-namespace mojo {
-namespace edk {
-
-namespace {
-
-bool WaitForBrokerMessage(PlatformHandle platform_handle,
- BrokerMessageType expected_type,
- size_t expected_num_handles,
- std::deque<PlatformHandle>* incoming_handles) {
- Channel::MessagePtr message(
- new Channel::Message(sizeof(BrokerMessageHeader), expected_num_handles));
- std::deque<PlatformHandle> incoming_platform_handles;
- ssize_t read_result = PlatformChannelRecvmsg(
- platform_handle, const_cast<void*>(message->data()),
- message->data_num_bytes(), &incoming_platform_handles, true /* block */);
- bool error = false;
- if (read_result < 0) {
- PLOG(ERROR) << "Recvmsg error";
- error = true;
- } else if (static_cast<size_t>(read_result) != message->data_num_bytes()) {
- LOG(ERROR) << "Invalid node channel message";
- error = true;
- } else if (incoming_platform_handles.size() != expected_num_handles) {
- LOG(ERROR) << "Received unexpected number of handles";
- error = true;
- }
-
- if (!error) {
- const BrokerMessageHeader* header =
- reinterpret_cast<const BrokerMessageHeader*>(message->payload());
- if (header->type != expected_type) {
- LOG(ERROR) << "Unexpected message";
- error = true;
- }
- }
-
- if (error) {
- CloseAllPlatformHandles(&incoming_platform_handles);
- } else {
- if (incoming_handles)
- incoming_handles->swap(incoming_platform_handles);
- }
- return !error;
-}
-
-} // namespace
-
-Broker::Broker(ScopedPlatformHandle platform_handle)
- : sync_channel_(std::move(platform_handle)) {
- CHECK(sync_channel_.is_valid());
-
- // Mark the channel as blocking.
- int flags = fcntl(sync_channel_.get().handle, F_GETFL);
- PCHECK(flags != -1);
- flags = fcntl(sync_channel_.get().handle, F_SETFL, flags & ~O_NONBLOCK);
- PCHECK(flags != -1);
-
- // Wait for the first message, which should contain a handle.
- std::deque<PlatformHandle> incoming_platform_handles;
- if (WaitForBrokerMessage(sync_channel_.get(), BrokerMessageType::INIT, 1,
- &incoming_platform_handles)) {
- parent_channel_ = ScopedPlatformHandle(incoming_platform_handles.front());
- }
-}
-
-Broker::~Broker() = default;
-
-ScopedPlatformHandle Broker::GetParentPlatformHandle() {
- return std::move(parent_channel_);
-}
-
-scoped_refptr<PlatformSharedBuffer> Broker::GetSharedBuffer(size_t num_bytes) {
- base::AutoLock lock(lock_);
-
- BufferRequestData* buffer_request;
- Channel::MessagePtr out_message = CreateBrokerMessage(
- BrokerMessageType::BUFFER_REQUEST, 0, 0, &buffer_request);
- buffer_request->size = num_bytes;
- ssize_t write_result = PlatformChannelWrite(
- sync_channel_.get(), out_message->data(), out_message->data_num_bytes());
- if (write_result < 0) {
- PLOG(ERROR) << "Error sending sync broker message";
- return nullptr;
- } else if (static_cast<size_t>(write_result) !=
- out_message->data_num_bytes()) {
- LOG(ERROR) << "Error sending complete broker message";
- return nullptr;
- }
-
- std::deque<PlatformHandle> incoming_platform_handles;
- if (WaitForBrokerMessage(sync_channel_.get(),
- BrokerMessageType::BUFFER_RESPONSE, 2,
- &incoming_platform_handles)) {
- ScopedPlatformHandle rw_handle(incoming_platform_handles.front());
- incoming_platform_handles.pop_front();
- ScopedPlatformHandle ro_handle(incoming_platform_handles.front());
- return PlatformSharedBuffer::CreateFromPlatformHandlePair(
- num_bytes, std::move(rw_handle), std::move(ro_handle));
- }
-
- return nullptr;
-}
-
-} // namespace edk
-} // namespace mojo