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/*****************************************************************************
Copyright (c) 1995, 2009, Oracle and/or its affiliates. All Rights Reserved.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
*****************************************************************************/
/******************************************************************//**
@file include/fut0lst.h
File-based list utilities
Created 11/28/1995 Heikki Tuuri
***********************************************************************/
#ifndef fut0lst_h
#define fut0lst_h
#include "univ.i"
#include "fil0fil.h"
#include "mtr0mtr.h"
/* The C 'types' of base node and list node: these should be used to
write self-documenting code. Of course, the sizeof macro cannot be
applied to these types! */
typedef byte flst_base_node_t;
typedef byte flst_node_t;
/* The physical size of a list base node in bytes */
#define FLST_BASE_NODE_SIZE (4 + 2 * FIL_ADDR_SIZE)
/* The physical size of a list node in bytes */
#define FLST_NODE_SIZE (2 * FIL_ADDR_SIZE)
#ifndef UNIV_HOTBACKUP
/********************************************************************//**
Initializes a list base node. */
UNIV_INLINE
void
flst_init(
/*======*/
flst_base_node_t* base, /*!< in: pointer to base node */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Adds a node as the last node in a list. */
UNIV_INTERN
void
flst_add_last(
/*==========*/
flst_base_node_t* base, /*!< in: pointer to base node of list */
flst_node_t* node, /*!< in: node to add */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Adds a node as the first node in a list. */
UNIV_INTERN
void
flst_add_first(
/*===========*/
flst_base_node_t* base, /*!< in: pointer to base node of list */
flst_node_t* node, /*!< in: node to add */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Inserts a node after another in a list. */
UNIV_INTERN
void
flst_insert_after(
/*==============*/
flst_base_node_t* base, /*!< in: pointer to base node of list */
flst_node_t* node1, /*!< in: node to insert after */
flst_node_t* node2, /*!< in: node to add */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Inserts a node before another in a list. */
UNIV_INTERN
void
flst_insert_before(
/*===============*/
flst_base_node_t* base, /*!< in: pointer to base node of list */
flst_node_t* node2, /*!< in: node to insert */
flst_node_t* node3, /*!< in: node to insert before */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Removes a node. */
UNIV_INTERN
void
flst_remove(
/*========*/
flst_base_node_t* base, /*!< in: pointer to base node of list */
flst_node_t* node2, /*!< in: node to remove */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Gets list length.
@return length */
UNIV_INLINE
ulint
flst_get_len(
/*=========*/
const flst_base_node_t* base, /*!< in: pointer to base node */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Gets list first node address.
@return file address */
UNIV_INLINE
fil_addr_t
flst_get_first(
/*===========*/
const flst_base_node_t* base, /*!< in: pointer to base node */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Gets list last node address.
@return file address */
UNIV_INLINE
fil_addr_t
flst_get_last(
/*==========*/
const flst_base_node_t* base, /*!< in: pointer to base node */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Gets list next node address.
@return file address */
UNIV_INLINE
fil_addr_t
flst_get_next_addr(
/*===============*/
const flst_node_t* node, /*!< in: pointer to node */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Gets list prev node address.
@return file address */
UNIV_INLINE
fil_addr_t
flst_get_prev_addr(
/*===============*/
const flst_node_t* node, /*!< in: pointer to node */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Writes a file address. */
UNIV_INLINE
void
flst_write_addr(
/*============*/
fil_faddr_t* faddr, /*!< in: pointer to file faddress */
fil_addr_t addr, /*!< in: file address */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Reads a file address.
@return file address */
UNIV_INLINE
fil_addr_t
flst_read_addr(
/*===========*/
const fil_faddr_t* faddr, /*!< in: pointer to file faddress */
mtr_t* mtr); /*!< in: mini-transaction handle */
/********************************************************************//**
Validates a file-based list.
@return TRUE if ok */
UNIV_INTERN
ibool
flst_validate(
/*==========*/
const flst_base_node_t* base, /*!< in: pointer to base node of list */
mtr_t* mtr1); /*!< in: mtr */
/********************************************************************//**
Prints info of a file-based list. */
UNIV_INTERN
void
flst_print(
/*=======*/
const flst_base_node_t* base, /*!< in: pointer to base node of list */
mtr_t* mtr); /*!< in: mtr */
#ifndef UNIV_NONINL
#include "fut0lst.ic"
#endif
#endif /* !UNIV_HOTBACKUP */
#endif
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