/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 1996, 2010 Oracle and/or its affiliates.  All rights reserved.
 *
 * $Id$
 */

#ifndef _DB_GLOBALS_H_
#define	_DB_GLOBALS_H_

#if defined(__cplusplus)
extern "C" {
#endif

/*******************************************************
 * Global variables.
 *
 * Held in a single structure to minimize the name-space pollution.
 *******************************************************/
#ifdef HAVE_VXWORKS
#include "semLib.h"
#endif

typedef struct __db_globals {
#ifdef HAVE_VXWORKS
	u_int32_t db_global_init;	/* VxWorks: inited */
	SEM_ID db_global_lock;		/* VxWorks: global semaphore */
#endif

	char *db_line;			/* DB display string. */

	char error_buf[40];		/* Error string buffer. */

	int uid_init;			/* srand set in UID generator */

	u_long rand_next;		/* rand/srand value */

	u_int32_t fid_serial;		/* file id counter */

	int db_errno;			/* Errno value if not available */

	int	(*j_close) __P((int));	/* Underlying OS interface jump table.*/
	void	(*j_dirfree) __P((char **, int));
	int	(*j_dirlist) __P((const char *, char ***, int *));
	int	(*j_exists) __P((const char *, int *));
	void	(*j_free) __P((void *));
	int	(*j_fsync) __P((int));
	int	(*j_ftruncate) __P((int, off_t));
	int	(*j_ioinfo) __P((const char *,
		    int, u_int32_t *, u_int32_t *, u_int32_t *));
	void   *(*j_malloc) __P((size_t));
	int	(*j_file_map) __P((DB_ENV *, char *, size_t, int, void **));
	int	(*j_file_unmap) __P((DB_ENV *, void *));
	int	(*j_open) __P((const char *, int, ...));
	ssize_t	(*j_pread) __P((int, void *, size_t, off_t));
	ssize_t	(*j_pwrite) __P((int, const void *, size_t, off_t));
	ssize_t	(*j_read) __P((int, void *, size_t));
	void   *(*j_realloc) __P((void *, size_t));
	int	(*j_region_map) __P((DB_ENV *, char *, size_t, int *, void **));
	int	(*j_region_unmap) __P((DB_ENV *, void *));
	int	(*j_rename) __P((const char *, const char *));
	int	(*j_seek) __P((int, off_t, int));
	int	(*j_unlink) __P((const char *));
	ssize_t	(*j_write) __P((int, const void *, size_t));
	int	(*j_yield) __P((u_long, u_long));
} DB_GLOBALS;

extern	DB_GLOBALS	__db_global_values;
#define	DB_GLOBAL(v)	__db_global_values.v

#if defined(__cplusplus)
}
#endif
#endif /* !_DB_GLOBALS_H_ */
