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#pragma once
#include <unistd.h>
namespace phosphor
{
namespace gpio
{
/** @class FileDescriptor
* @brief Responsible for handling file descriptor
*/
class FileDescriptor
{
private:
/** @brief File descriptor for the gpio input device */
int fd = -1;
public:
FileDescriptor() = default;
FileDescriptor(const FileDescriptor&) = delete;
FileDescriptor& operator=(const FileDescriptor&) = delete;
FileDescriptor(FileDescriptor&&) = delete;
FileDescriptor& operator=(FileDescriptor&&) = delete;
/** @brief Saves File descriptor and uses it to do file operation
*
* @param[in] fd - File descriptor
*/
FileDescriptor(int fd) : fd(fd)
{
// Nothing
}
~FileDescriptor()
{
if (fd >= 0)
{
close(fd);
}
}
int operator()()
{
return fd;
}
operator bool() const
{
return fd != -1;
}
void set(int descriptor)
{
fd = descriptor;
}
};
} // namespace gpio
} // namespace phosphor
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