/*- * See the file LICENSE for redistribution information. * * Copyright (c) 1997-2005 * Sleepycat Software. All rights reserved. * * $Id: os_stat.c,v 12.1 2005/06/16 20:23:31 bostic Exp $ */ #include "db_config.h" #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. */ int __os_exists(path, isdirp) const char *path; int *isdirp; { int ret; DWORD attrs; _TCHAR *tpath; if (DB_GLOBAL(j_exists) != NULL) return (DB_GLOBAL(j_exists)(path, isdirp)); TO_TSTRING(NULL, path, tpath, ret); if (ret != 0) return (ret); RETRY_CHK( ((attrs = GetFileAttributes(tpath)) == (DWORD)-1 ? 1 : 0), ret); if (ret == 0 && isdirp != NULL) *isdirp = (attrs & FILE_ATTRIBUTE_DIRECTORY); FREE_STRING(NULL, tpath); return (ret); } /* * __os_ioinfo -- * Return file size and I/O size; abstracted to make it easier * to replace. */ 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_CHK((!GetFileInformationByHandle(fhp->handle, &bhfi)), ret); if (ret != 0) { __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. In particular, * the values returned by GetDiskFreeSpace() are not very helpful * (NTFS volumes often report 512B clusters, which are too small to * be a useful default). */ if (iosizep != NULL) *iosizep = DB_DEF_IOSIZE; return (0); }