69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
//
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// Copyright (C) 2014 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "shill/net/io_ready_handler.h"
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#include <unistd.h>
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#include <base/logging.h>
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namespace shill {
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IOReadyHandler::IOReadyHandler(int fd,
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ReadyMode mode,
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const ReadyCallback& ready_callback)
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: fd_(fd),
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ready_mode_(mode),
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ready_callback_(ready_callback) {}
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IOReadyHandler::~IOReadyHandler() {
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Stop();
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}
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void IOReadyHandler::Start() {
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CHECK(ready_mode_ == kModeOutput || ready_mode_ == kModeInput);
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base::MessageLoopForIO::Mode mode;
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if (ready_mode_ == kModeOutput) {
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mode = base::MessageLoopForIO::WATCH_WRITE;
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} else {
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mode = base::MessageLoopForIO::WATCH_READ;
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}
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if (!base::MessageLoopForIO::current()->WatchFileDescriptor(
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fd_, true, mode, &fd_watcher_, this)) {
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LOG(ERROR) << "WatchFileDescriptor failed on read";
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}
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}
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void IOReadyHandler::Stop() {
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fd_watcher_.StopWatchingFileDescriptor();
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}
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void IOReadyHandler::OnFileCanReadWithoutBlocking(int fd) {
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CHECK_EQ(fd_, fd);
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CHECK_EQ(ready_mode_, kModeInput);
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ready_callback_.Run(fd_);
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}
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void IOReadyHandler::OnFileCanWriteWithoutBlocking(int fd) {
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CHECK_EQ(fd_, fd);
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CHECK_EQ(ready_mode_, kModeOutput);
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ready_callback_.Run(fd_);
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}
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} // namespace shill
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