Postgres95 1.01 Distribution - Virgin SourcesPG95-1_01

1 files changed, 119 insertions, 0 deletions

diff --git a/src/backend/libpq/libpq-fs.h b/src/backend/libpq/libpq-fs.h
new file mode 100644
index 00000000000..76f1f84c30b
--- /dev/null
+++ b/src/backend/libpq/libpq-fs.h
@@ -0,0 +1,119 @@
+/*-------------------------------------------------------------------------
+ *
+ * libpq-fs.h--
+ *    definitions for using Inversion file system routines
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: libpq-fs.h,v 1.1.1.1 1996/07/09 06:21:30 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef LIBPQ_FS_H
+#define LIBPQ_FS_H
+
+#include "lib/dllist.h"
+#include <sys/file.h>
+#include <sys/stat.h>
+
+#include <fcntl.h>		/* for O_ on some */
+#ifndef WIN32
+#include <unistd.h>		/* for SEEK_ on most */
+#endif /* WIN32 */
+#ifndef SEEK_SET
+#include <stdio.h>		/* for SEEK_ on others */
+#endif /* SEEK_SET */
+
+/* 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];
+};
+
+/*
+ * SysV struct dirent doesn't have d_namlen.
+ * This counts on d_name being last, which is moderately safe (ha) since 
+ * it's the variable-length part of the structure.
+ */
+#ifdef SYSV_DIRENT
+#define	D_NAMLEN(dp) \
+	((dp)->d_reclen - offsetof(struct dirent, d_name[0]))
+#else /* SYSV_DIRENT */
+#define	D_NAMLEN(dp) \
+	((dp)->d_namlen)
+#endif /* SYSV_DIRENT */
+
+/* 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_SMGRMASK	0x0000ffff
+#define	INV_ARCHIVE	0x00010000
+#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 */