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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1997-2002
* Sleepycat Software. All rights reserved.
*/
#include "db_config.h"
#ifndef lint
static const char revid[] = "$Id: os_stat.c,v 11.22 2002/07/12 18:56:56 bostic Exp $";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#endif
#include "db_int.h"
/*
* __os_exists --
* Return if the file exists.
*
* PUBLIC: int __os_exists __P((const char *, int *));
*/
int
__os_exists(path, isdirp)
const char *path;
int *isdirp;
{
int ret;
DWORD attrs;
if (DB_GLOBAL(j_exists) != NULL)
return (DB_GLOBAL(j_exists)(path, isdirp));
ret = 0;
do {
attrs = GetFileAttributes(path);
if (attrs == (DWORD)-1)
ret = __os_win32_errno();
} while (ret == EINTR);
if (ret != 0)
return (ret);
if (isdirp != NULL)
*isdirp = (attrs & FILE_ATTRIBUTE_DIRECTORY);
return (0);
}
/*
* __os_ioinfo --
* Return file size and I/O size; abstracted to make it easier
* to replace.
*
* PUBLIC: int __os_ioinfo __P((DB_ENV *, const char *,
* PUBLIC: DB_FH *, u_int32_t *, u_int32_t *, u_int32_t *));
*/
int
__os_ioinfo(dbenv, path, fhp, mbytesp, bytesp, iosizep)
DB_ENV *dbenv;
const char *path;
DB_FH *fhp;
u_int32_t *mbytesp, *bytesp, *iosizep;
{
int ret;
BY_HANDLE_FILE_INFORMATION bhfi;
unsigned __int64 filesize;
if (DB_GLOBAL(j_ioinfo) != NULL)
return (DB_GLOBAL(j_ioinfo)(path,
fhp->fd, mbytesp, bytesp, iosizep));
retry: if (!GetFileInformationByHandle(fhp->handle, &bhfi)) {
if ((ret = __os_win32_errno()) == EINTR)
goto retry;
__db_err(dbenv,
"GetFileInformationByHandle: %s", strerror(ret));
return (ret);
}
filesize = ((unsigned __int64)bhfi.nFileSizeHigh << 32) +
bhfi.nFileSizeLow;
/* Return the size of the file. */
if (mbytesp != NULL)
*mbytesp = (u_int32_t)(filesize / MEGABYTE);
if (bytesp != NULL)
*bytesp = (u_int32_t)(filesize % MEGABYTE);
/* The filesystem blocksize is not easily available. */
if (iosizep != NULL)
*iosizep = DB_DEF_IOSIZE;
return (0);
}
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