| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <brillo/binder_watcher.h> |
| |
| #include <base/logging.h> |
| #include <binder/IPCThreadState.h> |
| #include <binder/ProcessState.h> |
| |
| using android::IPCThreadState; |
| using android::ProcessState; |
| |
| namespace brillo { |
| |
| BinderWatcher::BinderWatcher() = default; |
| |
| BinderWatcher::~BinderWatcher() = default; |
| |
| bool BinderWatcher::Init() { |
| int binder_fd = -1; |
| ProcessState::self()->setThreadPoolMaxThreadCount(0); |
| IPCThreadState::self()->disableBackgroundScheduling(true); |
| IPCThreadState::self()->setupPolling(&binder_fd); |
| LOG(INFO) << "Got binder FD " << binder_fd; |
| if (binder_fd < 0) |
| return false; |
| |
| if (!base::MessageLoopForIO::current()->WatchFileDescriptor( |
| binder_fd, true /* persistent */, base::MessageLoopForIO::WATCH_READ, |
| &watcher_, this)) { |
| LOG(ERROR) << "Failed to watch binder FD"; |
| return false; |
| } |
| return true; |
| } |
| |
| void BinderWatcher::OnFileCanReadWithoutBlocking(int fd) { |
| IPCThreadState::self()->handlePolledCommands(); |
| } |
| |
| void BinderWatcher::OnFileCanWriteWithoutBlocking(int fd) { |
| NOTREACHED() << "Unexpected writable notification for FD " << fd; |
| } |
| |
| } // namespace brillo |