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file.hpp
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file.hpp
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#pragma once
#include <unistd.h>
namespace witherspoon
{
namespace power
{
namespace util
{
/**
* @class FileDescriptor
*
* Closes the file descriptor on destruction
*/
class FileDescriptor
{
public:
FileDescriptor() = default;
FileDescriptor(const FileDescriptor&) = delete;
FileDescriptor& operator=(const FileDescriptor&) = delete;
FileDescriptor(FileDescriptor&&) = delete;
FileDescriptor& operator=(FileDescriptor&&) = delete;
/**
* Constructor
*
* @param[in] fd - File descriptor
*/
FileDescriptor(int fd) : fd(fd) {}
~FileDescriptor()
{
if (fd >= 0)
{
close(fd);
}
}
int operator()()
{
return fd;
}
operator bool() const
{
return fd != -1;
}
void set(int descriptor)
{
if (fd >= 0)
{
close(fd);
}
fd = descriptor;
}
private:
/**
* File descriptor
*/
int fd = -1;
};
} // namespace util
} // namespace power
} // namespace witherspoon