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/*-------------------------------------------------------------------------
*
* win32fdatasync.c
* Win32 fdatasync() replacement
*
*
* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
*
* src/port/win32fdatasync.c
*
*-------------------------------------------------------------------------
*/
#ifdef FRONTEND
#include "postgres_fe.h"
#else
#include "postgres.h"
#endif
#include "port/win32ntdll.h"
int
fdatasync(int fd)
{
IO_STATUS_BLOCK iosb;
NTSTATUS status;
HANDLE handle;
handle = (HANDLE) _get_osfhandle(fd);
if (handle == INVALID_HANDLE_VALUE)
{
errno = EBADF;
return -1;
}
if (initialize_ntdll() < 0)
return -1;
memset(&iosb, 0, sizeof(iosb));
status = pg_NtFlushBuffersFileEx(handle,
FLUSH_FLAGS_FILE_DATA_SYNC_ONLY,
NULL,
0,
&iosb);
if (NT_SUCCESS(status))
return 0;
_dosmaperr(pg_RtlNtStatusToDosError(status));
return -1;
}
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