ClickHouse/src/Disks/LocalDirectorySyncGuard.cpp
2021-11-12 15:49:21 +08:00

51 lines
1.2 KiB
C++

#include <Disks/LocalDirectorySyncGuard.h>
#include <Common/Exception.h>
#include <Disks/IDisk.h>
#include <fcntl.h> // O_RDWR
/// OSX does not have O_DIRECTORY
#ifndef O_DIRECTORY
#define O_DIRECTORY O_RDWR
#endif
namespace DB
{
namespace ErrorCodes
{
extern const int CANNOT_FSYNC;
extern const int FILE_DOESNT_EXIST;
extern const int CANNOT_OPEN_FILE;
extern const int CANNOT_CLOSE_FILE;
}
LocalDirectorySyncGuard::LocalDirectorySyncGuard(const String & full_path)
: fd(::open(full_path.c_str(), O_DIRECTORY))
{
if (-1 == fd)
throwFromErrnoWithPath("Cannot open file " + full_path, full_path,
errno == ENOENT ? ErrorCodes::FILE_DOESNT_EXIST : ErrorCodes::CANNOT_OPEN_FILE);
}
LocalDirectorySyncGuard::~LocalDirectorySyncGuard()
{
try
{
#if defined(OS_DARWIN)
if (fcntl(fd, F_FULLFSYNC, 0))
throwFromErrno("Cannot fcntl(F_FULLFSYNC)", ErrorCodes::CANNOT_FSYNC);
#else
if (-1 == ::fdatasync(fd))
throw Exception("Cannot fdatasync", ErrorCodes::CANNOT_FSYNC);
#endif
if (-1 == ::close(fd))
throw Exception("Cannot close file", ErrorCodes::CANNOT_CLOSE_FILE);
}
catch (...)
{
tryLogCurrentException(__PRETTY_FUNCTION__);
}
}
}