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