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#pragma once
#include <stdio.h>
#include <experimental/filesystem>
namespace phosphor
{
namespace user
{
namespace fs = std::experimental::filesystem;
/** @class File
* @brief Responsible for handling file pointer
* Needed by putspent(3)
*/
class File
{
private:
/** @brief handler for operating on file */
FILE* fp = NULL;
/** @brief File name. Needed in the case where the temp
* needs to be removed
*/
const std::string& name;
/** @brief Should the file be removed at exit */
bool removeOnExit = false;
public:
File() = delete;
File(const File&) = delete;
File& operator=(const File&) = delete;
File(File&&) = delete;
File& operator=(File&&) = delete;
/** @brief Opens file and uses it to do file operation
*
* @param[in] name - File name
* @param[in] mode - File open mode
* @param[in] removeOnExit - File to be removed at exit or no
*/
File(const std::string& name, const std::string& mode,
bool removeOnExit = false) :
name(name),
removeOnExit(removeOnExit)
{
fp = fopen(name.c_str(), mode.c_str());
}
/** @brief Opens file using provided file descriptor
*
* @param[in] fd - File descriptor
* @param[in] name - File name
* @param[in] mode - File open mode
* @param[in] removeOnExit - File to be removed at exit or no
*/
File(int fd, const std::string& name, const std::string& mode,
bool removeOnExit = false) :
name(name),
removeOnExit(removeOnExit)
{
fp = fdopen(fd, mode.c_str());
}
~File()
{
if (fp)
{
fclose(fp);
}
// Needed for exception safety
if (removeOnExit && fs::exists(name))
{
fs::remove(name);
}
}
auto operator()()
{
return fp;
}
};
} // namespace user
} // namespace phosphor
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