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100 lines
2.0 KiB
C
100 lines
2.0 KiB
C
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1997, 1998
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* Sleepycat Software. All rights reserved.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "@(#)os_stat.c 10.18 (Sleepycat) 10/12/98";
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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 <errno.h>
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#endif
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#include "db_int.h"
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#include "os_jump.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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struct stat sb;
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if (__db_jump.j_exists != NULL)
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return (__db_jump.j_exists(path, isdirp));
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if (stat(path, &sb) != 0)
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return (errno);
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#if !defined(S_ISDIR) || defined(STAT_MACROS_BROKEN)
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#if defined(_WIN32) || defined(WIN16)
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#define S_ISDIR(m) (_S_IFDIR & (m))
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#else
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#define S_ISDIR(m) (((m) & 0170000) == 0040000)
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#endif
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#endif
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if (isdirp != NULL)
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*isdirp = S_ISDIR(sb.st_mode);
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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
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* PUBLIC: __P((const char *, int, u_int32_t *, u_int32_t *, u_int32_t *));
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*/
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int
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__os_ioinfo(path, fd, mbytesp, bytesp, iosizep)
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const char *path;
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int fd;
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u_int32_t *mbytesp, *bytesp, *iosizep;
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{
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struct stat sb;
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if (__db_jump.j_ioinfo != NULL)
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return (__db_jump.j_ioinfo(path, fd, mbytesp, bytesp, iosizep));
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if (fstat(fd, &sb) == -1)
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return (errno);
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/* Return the size of the file. */
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if (mbytesp != NULL)
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*mbytesp = sb.st_size / MEGABYTE;
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if (bytesp != NULL)
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*bytesp = sb.st_size % MEGABYTE;
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/*
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* Return the underlying filesystem blocksize, if available.
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*
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* XXX
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* Check for a 0 size -- the HP MPE/iX architecture has st_blksize,
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* but it's always 0.
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*/
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#ifdef HAVE_ST_BLKSIZE
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if (iosizep != NULL && (*iosizep = sb.st_blksize) == 0)
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*iosizep = DB_DEF_IOSIZE;
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#else
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if (iosizep != NULL)
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*iosizep = DB_DEF_IOSIZE;
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#endif
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return (0);
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}
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