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#pragma once
#include <string>
#include <functional>
#include <boost/noncopyable.hpp>
namespace DB
{
class WriteBuffer;
/** Provides that no more than one server works with one data directory.
*/
class StatusFile : private boost::noncopyable
{
public:
using FillFunction = std::function<void(WriteBuffer&)>;
StatusFile(std::string path_, FillFunction fill_);
~StatusFile();
/// You can use one of these functions to fill the file or provide your own.
static FillFunction write_pid;
static FillFunction write_full_info;
private:
const std::string path;
FillFunction fill;
int fd = -1;
};
}
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