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//
// Copyright (C) 2013 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.
//
#ifndef SHILL_FILE_IO_H_
#define SHILL_FILE_IO_H_
#include <base/lazy_instance.h>
namespace shill {
// A POSIX file IO wrapper to allow mocking in unit tests.
class FileIO {
public:
virtual ~FileIO();
// This is a singleton -- use FileIO::GetInstance()->Foo().
static FileIO* GetInstance();
virtual ssize_t Write(int fd, const void* buf, size_t count);
virtual ssize_t Read(int fd, void* buf, size_t count);
virtual int Close(int fd);
virtual int SetFdNonBlocking(int fd);
protected:
FileIO();
private:
friend struct base::DefaultLazyInstanceTraits<FileIO>;
DISALLOW_COPY_AND_ASSIGN(FileIO);
};
} // namespace shill
#endif // SHILL_FILE_IO_H_
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