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/*-------------------------------------------------------------------------
*
* libpq-fs.h
* definitions for using Inversion file system routines
*
*
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: libpq-fs.h,v 1.10 2000/10/28 22:53:15 petere Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef LIBPQ_FS_H
#define LIBPQ_FS_H
/* UNIX compatibility junk. This should be in all systems' include files,
but this is not always the case. */
#ifndef MAXNAMLEN
#define MAXNAMLEN 255
#endif /* MAXNAMLEN */
struct pgdirent
{
unsigned long d_ino;
unsigned short d_namlen;
char d_name[MAXNAMLEN + 1];
};
/* for stat(2) */
#ifndef S_IRUSR
/* file modes */
#define S_IRWXU 00700 /* read, write, execute: owner */
#define S_IRUSR 00400 /* read permission: owner */
#define S_IWUSR 00200 /* write permission: owner */
#define S_IXUSR 00100 /* execute permission: owner */
#define S_IRWXG 00070 /* read, write, execute: group */
#define S_IRGRP 00040 /* read permission: group */
#define S_IWGRP 00020 /* write permission: group */
#define S_IXGRP 00010 /* execute permission: group */
#define S_IRWXO 00007 /* read, write, execute: other */
#define S_IROTH 00004 /* read permission: other */
#define S_IWOTH 00002 /* write permission: other */
#define S_IXOTH 00001 /* execute permission: other */
#define _S_IFMT 0170000 /* type of file; sync with S_IFMT */
#define _S_IFBLK 0060000 /* block special; sync with S_IFBLK */
#define _S_IFCHR 0020000 /* character special sync with S_IFCHR */
#define _S_IFDIR 0040000 /* directory; sync with S_IFDIR */
#define _S_IFIFO 0010000 /* FIFO - named pipe; sync with S_IFIFO */
#define _S_IFREG 0100000 /* regular; sync with S_IFREG */
#define S_IFDIR _S_IFDIR
#define S_IFREG _S_IFREG
#define S_ISDIR( mode ) (((mode) & _S_IFMT) == _S_IFDIR)
#endif /* S_IRUSR */
/*
* Inversion doesn't have links.
*/
#ifndef S_ISLNK
#define S_ISLNK(x) 0
#endif
/*
* Flags for inversion file system large objects. Normally, creat()
* takes mode arguments, but we don't use them in inversion, since
* you get postgres protections. Instead, we use the low sixteen bits
* of the integer mode argument to store the number of the storage
* manager to be used, and the high sixteen bits for flags.
*/
#define INV_WRITE 0x00020000
#define INV_READ 0x00040000
/* Error values for p_errno */
#define PEPERM 1 /* Not owner */
#define PENOENT 2 /* No such file or directory */
#define PEACCES 13 /* Permission denied */
#define PEEXIST 17 /* File exists */
#define PENOTDIR 20 /* Not a directory */
#define PEISDIR 21 /* Is a directory */
#define PEINVAL 22 /* Invalid argument */
#define PENAMETOOLONG 63 /* File name too long */
#define PENOTEMPTY 66 /* Directory not empty */
#define PEPGIO 99 /* postgres backend had problems */
#endif /* LIBPQ_FS_H */
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