ClickHouse/src/Common/filesystemHelpers.h
2020-09-15 12:55:57 +03:00

43 lines
1.0 KiB
C++

#pragma once
#include <common/types.h>
#include <Common/Exception.h>
#include <filesystem>
#include <memory>
#include <string>
#include <sys/statvfs.h>
#include <Poco/TemporaryFile.h>
namespace DB
{
namespace ErrorCodes
{
extern const int CANNOT_STATVFS;
}
using TemporaryFile = Poco::TemporaryFile;
bool enoughSpaceInDirectory(const std::string & path, size_t data_size);
std::unique_ptr<TemporaryFile> createTemporaryFile(const std::string & path);
/// Returns mount point of filesystem where absolute_path (must exist) is located
std::filesystem::path getMountPoint(std::filesystem::path absolute_path);
/// Returns name of filesystem mounted to mount_point
#if !defined(__linux__)
[[noreturn]]
#endif
String getFilesystemName([[maybe_unused]] const String & mount_point);
inline struct statvfs getStatVFS(const String & path)
{
struct statvfs fs;
if (statvfs(path.c_str(), &fs) != 0)
throwFromErrnoWithPath("Could not calculate available disk space (statvfs)", path, ErrorCodes::CANNOT_STATVFS);
return fs;
}
}