70 lines
1.9 KiB
C++
70 lines
1.9 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_input_handler.h"
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#include <string>
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#include <unistd.h>
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#include <base/logging.h>
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#include <base/strings/stringprintf.h>
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namespace shill {
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IOInputHandler::IOInputHandler(int fd,
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const InputCallback& input_callback,
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const ErrorCallback& error_callback)
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: fd_(fd),
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input_callback_(input_callback),
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error_callback_(error_callback) {}
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IOInputHandler::~IOInputHandler() {
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Stop();
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}
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void IOInputHandler::Start() {
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if (!base::MessageLoopForIO::current()->WatchFileDescriptor(
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fd_, true, base::MessageLoopForIO::WATCH_READ,
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&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 IOInputHandler::Stop() {
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fd_watcher_.StopWatchingFileDescriptor();
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}
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void IOInputHandler::OnFileCanReadWithoutBlocking(int fd) {
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CHECK_EQ(fd_, fd);
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unsigned char buf[IOHandler::kDataBufferSize];
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int len = read(fd, buf, sizeof(buf));
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if (len < 0) {
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std::string condition = base::StringPrintf(
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"File read error: %d", errno);
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LOG(ERROR) << condition;
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error_callback_.Run(condition);
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}
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InputData input_data(buf, len);
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input_callback_.Run(&input_data);
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}
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void IOInputHandler::OnFileCanWriteWithoutBlocking(int fd) {
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NOTREACHED() << "Not watching file descriptor for write";
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}
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} // namespace shill
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