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- /* $Header: /private/postgres/src/lib/H/tmp/RCS/libpq-fs.h,v 1.10 1992/07/08 07:11:15 joey Exp $ */
-
- #ifndef libpq_fs_H
- #define libpq_fs_H
-
- #include "tmp/simplelists.h"
- #include <sys/file.h>
-
- /* UNIX compatibility junk. This should be in all system''s include files,
- but this is not always the case. */
-
- #define MAXNAMLEN 255
- struct pgdirent {
- unsigned long d_ino;
- unsigned short d_namlen;
- char d_name[MAXNAMLEN+1];
- };
-
- /* for lseek(2) */
- #ifndef SEEK_SET
- #define SEEK_SET 0
- #endif
-
- /* for stat(2) */
- #ifndef S_IRUSR /* this not defined means rest are probably not defined */
- /* 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 */
-
- #undef S_IFDIR
- #undef S_IFREG
- #define S_IFDIR _S_IFDIR
- #define S_IFREG _S_IFREG
-
- #define S_ISDIR( mode ) (((mode) & _S_IFMT) == _S_IFDIR)
-
- #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_SMGRMASK 0x0000ffff
- #define INV_ARCHIVE 0x00010000
- #define INV_WRITE 0x00020000
- #define INV_READ 0x00040000
-
- struct pgstat { /* just the fields we need from stat structure */
- int st_ino;
- int st_mode;
- unsigned int st_size;
- unsigned int st_sizehigh; /* high order bits */
- /* 2^64 == 1.8 x 10^20 bytes */
- int st_uid;
- int st_atime;
- int st_mtime;
- int st_ctime;
- };
-
- typedef struct Direntry_ {
- struct pgdirent d;
- SLNode Node;
- } Direntry;
-
- typedef struct PDIR_ {
- SLList dirlist;
- Direntry *current_entry;
- } PDIR;
-
- /* 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 */
-
- int p_open ARGS((char *fname , int mode ));
- int p_close ARGS((int fd ));
- int p_read ARGS((int fd , char *buf , int len ));
- int p_write ARGS((int fd , char *buf , int len ));
- int p_lseek ARGS((int fd , int offset , int whence ));
- int p_creat ARGS((char *path , int mode, int objtype ));
- int p_tell ARGS((int fd ));
- int p_mkdir ARGS((char *path , int mode ));
- int p_unlink ARGS((char *path ));
- int p_rmdir ARGS((char *path ));
- int p_ferror ARGS((int fd ));
- int p_rename ARGS((char *path , char *pathnew ));
- int p_stat ARGS((char *path , struct pgstat *statbuf ));
- PDIR *p_opendir ARGS((char *path ));
- struct pgdirent *p_readdir ARGS((PDIR *dirp ));
- void p_rewinddir ARGS((PDIR *dirp ));
- int p_closedir ARGS((PDIR *dirp ));
- int p_chdir ARGS((char *path ));
- char *p_getwd ARGS((char *path ));
-
- #endif
-