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/*****************************************************************************

Copyright (c) 2011, 2013, 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/api0api.h
InnoDB Native API

2008-08-01 Created by Sunny Bains.
3/20/2011 Jimmy Yang extracted from Embedded InnoDB
*******************************************************/

#ifndef api0api_h
#define api0api_h

#include "db0err.h"
#include <stdio.h>

#ifdef _MSC_VER
#define strncasecmp		_strnicmp
#define strcasecmp		_stricmp
#endif

#if defined(__GNUC__) && (__GNUC__ > 2) && ! defined(__INTEL_COMPILER)
#define UNIV_NO_IGNORE		__attribute__ ((warn_unused_result))
#else
#define UNIV_NO_IGNORE
#endif /* __GNUC__ && __GNUC__ > 2 && !__INTEL_COMPILER */

/* See comment about ib_bool_t as to why the two macros are unsigned long. */
/** The boolean value of "true" used internally within InnoDB */
#define IB_TRUE			0x1UL
/** The boolean value of "false" used internally within InnoDB */
#define IB_FALSE		0x0UL

/* Basic types used by the InnoDB API. */
/** All InnoDB error codes are represented by ib_err_t */
typedef enum dberr_t		ib_err_t;
/** Representation of a byte within InnoDB */
typedef unsigned char		ib_byte_t;
/** Representation of an unsigned long int within InnoDB */
typedef unsigned long int	ib_ulint_t;

/* We assume C99 support except when using VisualStudio. */
#if !defined(_MSC_VER)
#include <stdint.h>
#endif /* _MSC_VER */

/* Integer types used by the API. Microsft VS defines its own types
and we use the Microsoft types when building with Visual Studio. */
#if defined(_MSC_VER)
/** A signed 8 bit integral type. */
typedef __int8			ib_i8_t;
#else
/** A signed 8 bit integral type. */
typedef int8_t                  ib_i8_t;
#endif

#if defined(_MSC_VER)
/** An unsigned 8 bit integral type. */
typedef unsigned __int8		ib_u8_t;
#else
/** An unsigned 8 bit integral type. */
typedef uint8_t                 ib_u8_t;
#endif

#if defined(_MSC_VER)
/** A signed 16 bit integral type. */
typedef __int16			ib_i16_t;
#else
/** A signed 16 bit integral type. */
typedef int16_t                 ib_i16_t;
#endif

#if defined(_MSC_VER)
/** An unsigned 16 bit integral type. */
typedef unsigned __int16	ib_u16_t;
#else
/** An unsigned 16 bit integral type. */
typedef uint16_t                ib_u16_t;
#endif

#if defined(_MSC_VER)
/** A signed 32 bit integral type. */
typedef __int32			ib_i32_t;
#else
/** A signed 32 bit integral type. */
typedef int32_t                 ib_i32_t;
#endif

#if defined(_MSC_VER)
/** An unsigned 32 bit integral type. */
typedef unsigned __int32	ib_u32_t;
#else
/** An unsigned 32 bit integral type. */
typedef uint32_t                ib_u32_t;
#endif

#if defined(_MSC_VER)
/** A signed 64 bit integral type. */
typedef __int64			ib_i64_t;
#else
/** A signed 64 bit integral type. */
typedef int64_t                 ib_i64_t;
#endif

#if defined(_MSC_VER)
/** An unsigned 64 bit integral type. */
typedef unsigned __int64	ib_u64_t;
#else
/** An unsigned 64 bit integral type. */
typedef uint64_t                ib_u64_t;
#endif

typedef void*			ib_opaque_t;
typedef ib_opaque_t		ib_charset_t;
typedef ib_ulint_t		ib_bool_t;
typedef ib_u64_t		ib_id_u64_t;

/** @enum ib_cfg_type_t Possible types for a configuration variable. */
typedef enum {
	IB_CFG_IBOOL,			/*!< The configuration parameter is
					of type ibool */

	/* XXX Can we avoid having different types for ulint and ulong?
	- On Win64 "unsigned long" is 32 bits
	- ulong is always defined as "unsigned long"
	- On Win64 ulint is defined as 64 bit integer
	=> On Win64 ulint != ulong.
	If we typecast all ulong and ulint variables to the smaller type
	ulong, then we will cut the range of the ulint variables.
	This is not a problem for most ulint variables because their max
	allowed values do not exceed 2^32-1 (e.g. log_groups is ulint
	but its max allowed value is 10). BUT buffer_pool_size and
	log_file_size allow up to 2^64-1. */

	IB_CFG_ULINT,			/*!< The configuration parameter is
					of type ulint */

	IB_CFG_ULONG,			/*!< The configuration parameter is
					of type ulong */

	IB_CFG_TEXT,			/*!< The configuration parameter is
					of type char* */

	IB_CFG_CB			/*!< The configuration parameter is
					a callback parameter */
} ib_cfg_type_t;

/** @enum ib_col_type_t  column types that are supported. */
typedef enum {
	IB_VARCHAR =	1,		/*!< Character varying length. The
					column is not padded. */

	IB_CHAR =	2,		/*!< Fixed length character string. The
					column is padded to the right. */

	IB_BINARY =	3,		/*!< Fixed length binary, similar to
					IB_CHAR but the column is not padded
					to the right. */

	IB_VARBINARY =	4,		/*!< Variable length binary */

	IB_BLOB	=	5,		/*!< Binary large object, or
					a TEXT type */

	IB_INT =	6,		/*!< Integer: can be any size
					from 1 - 8 bytes. If the size is
					1, 2, 4 and 8 bytes then you can use
					the typed read and write functions. For
					other sizes you will need to use the
					ib_col_get_value() function and do the
					conversion yourself. */

	IB_SYS =	8,		/*!< System column, this column can
					be one of DATA_TRX_ID, DATA_ROLL_PTR
					or DATA_ROW_ID. */

	IB_FLOAT =	9,		/*!< C (float)  floating point value. */

	IB_DOUBLE =	10,		/*!> C (double) floating point value. */

	IB_DECIMAL =	11,		/*!< Decimal stored as an ASCII
					string */

	IB_VARCHAR_ANYCHARSET =	12,	/*!< Any charset, varying length */

	IB_CHAR_ANYCHARSET =	13	/*!< Any charset, fixed length */

} ib_col_type_t;

/** @enum ib_tbl_fmt_t InnoDB table format types */
typedef enum {
	IB_TBL_REDUNDANT,		/*!< Redundant row format, the column
					type and length is stored in the row.*/

	IB_TBL_COMPACT,			/*!< Compact row format, the column
					type is not stored in the row. The
					length is stored in the row but the
					storage format uses a compact format
					to store the length of the column data
					and record data storage format also
					uses less storage. */

	IB_TBL_DYNAMIC,			/*!< Compact row format. BLOB prefixes
					are not stored in the clustered index */

	IB_TBL_COMPRESSED		/*!< Similar to dynamic format but
					with pages compressed */
} ib_tbl_fmt_t;

/** @enum ib_col_attr_t InnoDB column attributes */
typedef enum {
	IB_COL_NONE = 0,		/*!< No special attributes. */

	IB_COL_NOT_NULL = 1,		/*!< Column data can't be NULL. */

	IB_COL_UNSIGNED = 2,		/*!< Column is IB_INT and unsigned. */

	IB_COL_NOT_USED = 4,		/*!< Future use, reserved. */

	IB_COL_CUSTOM1 = 8,		/*!< Custom precision type, this is
					a bit that is ignored by InnoDB and so
					can be set and queried by users. */

	IB_COL_CUSTOM2 = 16,		/*!< Custom precision type, this is
					a bit that is ignored by InnoDB and so
					can be set and queried by users. */

	IB_COL_CUSTOM3 = 32		/*!< Custom precision type, this is
					a bit that is ignored by InnoDB and so
					can be set and queried by users. */
} ib_col_attr_t;

/* Note: must match lock0types.h */
/** @enum ib_lck_mode_t InnoDB lock modes. */
typedef enum {
	IB_LOCK_IS = 0,			/*!< Intention shared, an intention
					lock should be used to lock tables */

	IB_LOCK_IX,			/*!< Intention exclusive, an intention
					lock should be used to lock tables */

	IB_LOCK_S,			/*!< Shared locks should be used to
					lock rows */

	IB_LOCK_X,			/*!< Exclusive locks should be used to
					lock rows*/

	IB_LOCK_TABLE_X,		/*!< exclusive table lock */

	IB_LOCK_NONE,			/*!< This is used internally to note
					consistent read */

	IB_LOCK_NUM = IB_LOCK_NONE	/*!< number of lock modes */
} ib_lck_mode_t;

typedef enum {
	IB_CLUSTERED = 1,	/*!< clustered index */
	IB_UNIQUE = 2		/*!< unique index */
} ib_index_type_t;

/** @enum ib_srch_mode_t InnoDB cursor search modes for ib_cursor_moveto().
Note: Values must match those found in page0cur.h */
typedef enum {
	IB_CUR_G = 1,			/*!< If search key is not found then
					position the cursor on the row that
					is greater than the search key */

	IB_CUR_GE = 2,			/*!< If the search key not found then
					position the cursor on the row that
					is greater than or equal to the search
					key */

	IB_CUR_L = 3,			/*!< If search key is not found then
					position the cursor on the row that
					is less than the search key */

	IB_CUR_LE = 4			/*!< If search key is not found then
					position the cursor on the row that
					is less than or equal to the search
					key */
} ib_srch_mode_t;

/** @enum ib_match_mode_t Various match modes used by ib_cursor_moveto() */
typedef enum {
	IB_CLOSEST_MATCH,		/*!< Closest match possible */

	IB_EXACT_MATCH,			/*!< Search using a complete key
					value */

	IB_EXACT_PREFIX			/*!< Search using a key prefix which
					must match to rows: the prefix may
					contain an incomplete field (the
					last field in prefix may be just
					a prefix of a fixed length column) */
} ib_match_mode_t;

/** @struct ib_col_meta_t InnoDB column meta data. */
typedef struct {
	ib_col_type_t	type;		/*!< Type of the column */

	ib_col_attr_t	attr;		/*!< Column attributes */

	ib_u32_t	type_len;	/*!< Length of type */

	ib_u16_t	client_type;	/*!< 16 bits of data relevant only to
					the client. InnoDB doesn't care */

	ib_charset_t*	charset;	/*!< Column charset */
} ib_col_meta_t;

/* Note: Must be in sync with trx0trx.h */
/** @enum ib_trx_state_t The transaction state can be queried using the
ib_trx_state() function. The InnoDB deadlock monitor can roll back a
transaction and users should be prepared for this, especially where there
is high contention. The way to determine the state of the transaction is to
query it's state and check. */
typedef enum {
	IB_TRX_NOT_STARTED,		/*!< Has not started yet, the
					transaction has not ben started yet.*/

	IB_TRX_ACTIVE,			/*!< The transaction is currently
					active and needs to be either
					committed or rolled back. */

	IB_TRX_COMMITTED_IN_MEMORY,	/*!< Not committed to disk yet */

	IB_TRX_PREPARED			/*!< Support for 2PC/XA */
} ib_trx_state_t;

/* Note: Must be in sync with trx0trx.h */
/** @enum ib_trx_level_t Transaction isolation levels */
typedef enum {
	IB_TRX_READ_UNCOMMITTED = 0,	/*!< Dirty read: non-locking SELECTs are
					performed so that we do not look at a
					possible earlier version of a record;
					thus they are not 'consistent' reads
					under this isolation level; otherwise
					like level 2 */

	IB_TRX_READ_COMMITTED = 1,	/*!< Somewhat Oracle-like isolation,
					except that in range UPDATE and DELETE
					we must block phantom rows with
					next-key locks; SELECT ... FOR UPDATE
					and ...  LOCK IN SHARE MODE only lock
					the index records, NOT the gaps before
					them, and thus allow free inserting;
					each consistent read reads its own
					snapshot */

	IB_TRX_REPEATABLE_READ = 2,	/*!< All consistent reads in the same
					trx read the same snapshot; full
					next-key locking used in locking reads
					to block insertions into gaps */

	IB_TRX_SERIALIZABLE = 3		/*!< All plain SELECTs are converted to
					LOCK IN SHARE MODE reads */
} ib_trx_level_t;

/** Generical InnoDB callback prototype. */
typedef void (*ib_cb_t)(void);

#define IB_CFG_BINLOG_ENABLED	0x1
#define IB_CFG_MDL_ENABLED	0x2
#define IB_CFG_DISABLE_ROWLOCK	0x4

/** The first argument to the InnoDB message logging function. By default
it's set to stderr. You should treat ib_msg_stream_t as a void*, since
it will probably change in the future. */
typedef FILE* ib_msg_stream_t;

/** All log messages are written to this function.It should have the same
behavior as fprintf(3). */
typedef int (*ib_msg_log_t)(ib_msg_stream_t, const char*, ...);

/* Note: This is to make it easy for API users to have type
checking for arguments to our functions. Making it ib_opaque_t
by itself will result in pointer decay resulting in subverting
of the compiler's type checking. */

/** InnoDB tuple handle. This handle can refer to either a cluster index
tuple or a secondary index tuple. There are two types of tuples for each
type of index, making a total of four types of tuple handles. There
is a tuple for reading the entire row contents and another for searching
on the index key. */
typedef struct ib_tuple_t* ib_tpl_t;

/** InnoDB transaction handle, all database operations need to be covered
by transactions. This handle represents a transaction. The handle can be
created with ib_trx_begin(), you commit your changes with ib_trx_commit()
and undo your changes using ib_trx_rollback(). If the InnoDB deadlock
monitor rolls back the transaction then you need to free the transaction
using the function ib_trx_release(). You can query the state of an InnoDB
transaction by calling ib_trx_state(). */
typedef struct trx_t* ib_trx_t;

/** InnoDB cursor handle */
typedef struct ib_cursor_t* ib_crsr_t;

/*************************************************************//**
This function is used to compare two data fields for which the data type
is such that we must use the client code to compare them.

@param col_meta		column meta data
@param p1		key
@oaram p1_len		key length
@param p2		second key
@param p2_len		second key length
@return 1, 0, -1, if a is greater, equal, less than b, respectively */

typedef int (*ib_client_cmp_t)(
	const ib_col_meta_t*	col_meta,
	const ib_byte_t*	p1,
	ib_ulint_t		p1_len,
	const ib_byte_t*	p2,
	ib_ulint_t		p2_len);

/* This should be the same as univ.i */
/** Represents SQL_NULL length */
#define	IB_SQL_NULL		0xFFFFFFFF
/** The number of system columns in a row. */
#define IB_N_SYS_COLS		3

/** The maximum length of a text column. */
#define MAX_TEXT_LEN		4096

/* MySQL uses 3 byte UTF-8 encoding. */
/** The maximum length of a column name in a table schema. */
#define IB_MAX_COL_NAME_LEN	(64 * 3)

/** The maximum length of a table name (plus database name). */
#define IB_MAX_TABLE_NAME_LEN	(64 * 3) * 2

/*****************************************************************//**
Start a transaction that's been rolled back. This special function
exists for the case when InnoDB's deadlock detector has rolledack
a transaction. While the transaction has been rolled back the handle
is still valid and can be reused by calling this function. If you
don't want to reuse the transaction handle then you can free the handle
by calling ib_trx_release().
@return	innobase txn handle */

ib_err_t
ib_trx_start(
/*=========*/
	ib_trx_t	ib_trx,		/*!< in: transaction to restart */
	ib_trx_level_t	ib_trx_level,	/*!< in: trx isolation level */
	ib_bool_t	read_write,	/*!< in: true if read write
					transaction */
	ib_bool_t	auto_commit,	/*!< in: auto commit after each
					single DML */
	void*		thd);		/*!< in: THD */

/*****************************************************************//**
Begin a transaction. This will allocate a new transaction handle and
put the transaction in the active state.
@return	innobase txn handle */

ib_trx_t
ib_trx_begin(
/*=========*/
	ib_trx_level_t	ib_trx_level,	/*!< in: trx isolation level */
	ib_bool_t	read_write,	/*!< in: true if read write
					transaction */
	ib_bool_t	auto_commit);	/*!< in: auto commit after each
					single DML */

/*****************************************************************//**
Query the transaction's state. This function can be used to check for
the state of the transaction in case it has been rolled back by the
InnoDB deadlock detector. Note that when a transaction is selected as
a victim for rollback, InnoDB will always return an appropriate error
code indicating this. @see DB_DEADLOCK, @see DB_LOCK_TABLE_FULL and
@see DB_LOCK_WAIT_TIMEOUT
@return	transaction state */

ib_trx_state_t
ib_trx_state(
/*=========*/
	ib_trx_t	ib_trx);	/*!< in: trx handle */

/*****************************************************************//**
Release the resources of the transaction. If the transaction was
selected as a victim by InnoDB and rolled back then use this function
to free the transaction handle.
@return	DB_SUCCESS or err code */

ib_err_t
ib_trx_release(
/*===========*/
	ib_trx_t	ib_trx);	/*!< in: trx handle */

/*****************************************************************//**
Commit a transaction. This function will release the schema latches too.
It will also free the transaction handle.
@return	DB_SUCCESS or err code */

ib_err_t
ib_trx_commit(
/*==========*/
	ib_trx_t	ib_trx);	/*!< in: trx handle */

/*****************************************************************//**
Rollback a transaction. This function will release the schema latches too.
It will also free the transaction handle.
@return	DB_SUCCESS or err code */

ib_err_t
ib_trx_rollback(
/*============*/
	ib_trx_t	ib_trx);	/*!< in: trx handle */

/*****************************************************************//**
Open an InnoDB table and return a cursor handle to it.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_open_table_using_id(
/*==========================*/
	ib_id_u64_t	table_id,	/*!< in: table id of table to open */
	ib_trx_t	ib_trx,		/*!< in: Current transaction handle
					can be NULL */
	ib_crsr_t*	ib_crsr);	/*!< out,own: InnoDB cursor */

/*****************************************************************//**
Open an InnoDB index and return a cursor handle to it.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_open_index_using_id(
/*==========================*/
	ib_id_u64_t	index_id,	/*!< in: index id of index to open */
	ib_trx_t	ib_trx,		/*!< in: Current transaction handle
					can be NULL */
	ib_crsr_t*	ib_crsr);	/*!< out: InnoDB cursor */

/*****************************************************************//**
Open an InnoDB secondary index cursor and return a cursor handle to it.
@return DB_SUCCESS or err code */

ib_err_t
ib_cursor_open_index_using_name(
/*============================*/
	ib_crsr_t	ib_open_crsr,	/*!< in: open/active cursor */
	const char*	index_name,	/*!< in: secondary index name */
	ib_crsr_t*	ib_crsr,	/*!< out,own: InnoDB index cursor */
	int*		idx_type,	/*!< out: index is cluster index */
	ib_id_u64_t*	idx_id);	/*!< out: index id */

/*****************************************************************//**
Open an InnoDB table by name and return a cursor handle to it.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_open_table(
/*=================*/
	const char*	name,		/*!< in: table name */
	ib_trx_t	ib_trx,		/*!< in: Current transaction handle
					can be NULL */
	ib_crsr_t*	ib_crsr);	/*!< out,own: InnoDB cursor */

/*****************************************************************//**
Reset the cursor.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_reset(
/*============*/
	ib_crsr_t	ib_crsr);	/*!< in/out: InnoDB cursor */


/*****************************************************************//**
set a cursor trx to NULL*/

void
ib_cursor_clear_trx(
/*================*/
	ib_crsr_t	ib_crsr);	/*!< in/out: InnoDB cursor */

/*****************************************************************//**
Close an InnoDB table and free the cursor.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_close(
/*============*/
	ib_crsr_t	ib_crsr);	/*!< in/out: InnoDB cursor */

/*****************************************************************//**
Close the table, decrement n_ref_count count.
@return DB_SUCCESS or err code */

ib_err_t
ib_cursor_close_table(
/*==================*/
	ib_crsr_t	ib_crsr);	/*!< in/out: InnoDB cursor */

/*****************************************************************//**
update the cursor with new transactions and also reset the cursor
@return DB_SUCCESS or err code */

ib_err_t
ib_cursor_new_trx(
/*==============*/
	ib_crsr_t	ib_crsr,	/*!< in/out: InnoDB cursor */
	ib_trx_t	ib_trx);	/*!< in: transaction */

/*****************************************************************//**
Commit the transaction in a cursor
@return DB_SUCCESS or err code */

ib_err_t
ib_cursor_commit_trx(
/*=================*/
	ib_crsr_t	ib_crsr,	/*!< in/out: InnoDB cursor */
	ib_trx_t	ib_trx);	/*!< in: transaction */

/********************************************************************//**
Open a table using the table name, if found then increment table ref count.
@return table instance if found */

void*
ib_open_table_by_name(
/*==================*/
	const char*	name);		/*!< in: table name to lookup */

/*****************************************************************//**
Insert a row to a table.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_insert_row(
/*=================*/
	ib_crsr_t	ib_crsr,	/*!< in/out: InnoDB cursor instance */
	const ib_tpl_t	ib_tpl);	/*!< in: tuple to insert */

/*****************************************************************//**
Update a row in a table.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_update_row(
/*=================*/
	ib_crsr_t	ib_crsr,	/*!< in: InnoDB cursor instance */
	const ib_tpl_t	ib_old_tpl,	/*!< in: Old tuple in table */
	const ib_tpl_t	ib_new_tpl);	/*!< in: New tuple to update */

/*****************************************************************//**
Delete a row in a table.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_delete_row(
/*=================*/
	ib_crsr_t	ib_crsr);	/*!< in: cursor instance */

/*****************************************************************//**
Read current row.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_read_row(
/*===============*/
	ib_crsr_t	ib_crsr,	/*!< in: InnoDB cursor instance */
	ib_tpl_t	ib_tpl,		/*!< out: read cols into this tuple */
	void**		row_buf,	/*!< in/out: row buffer */
	ib_ulint_t*	row_len);	/*!< in/out: row buffer len */

/*****************************************************************//**
Move cursor to the first record in the table.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_first(
/*============*/
	ib_crsr_t	ib_crsr);	/*!< in: InnoDB cursor instance */

/*****************************************************************//**
Move cursor to the last record in the table.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_last(
/*===========*/
	ib_crsr_t	ib_crsr);	/*!< in: InnoDB cursor instance */

/*****************************************************************//**
Move cursor to the next record in the table.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_next(
/*===========*/
	ib_crsr_t	ib_crsr);	/*!< in: InnoDB cursor instance */

/*****************************************************************//**
Search for key.
@return	DB_SUCCESS or err code */

ib_err_t
ib_cursor_moveto(
/*=============*/
	ib_crsr_t	ib_crsr,	/*!< in: InnoDB cursor instance */
	ib_tpl_t	ib_tpl,		/*!< in: Key to search for */
	ib_srch_mode_t	ib_srch_mode);	/*!< in: search mode */

/*****************************************************************//**
Set the match mode for ib_cursor_move(). */

void
ib_cursor_set_match_mode(
/*=====================*/
	ib_crsr_t	ib_crsr,	/*!< in: Cursor instance */
	ib_match_mode_t	match_mode);	/*!< in: ib_cursor_moveto match mode */

/*****************************************************************//**
Set a column of the tuple. Make a copy using the tuple's heap.
@return	DB_SUCCESS or error code */

ib_err_t
ib_col_set_value(
/*=============*/
	ib_tpl_t	ib_tpl,		/*!< in: tuple instance */
	ib_ulint_t	col_no,		/*!< in: column index in tuple */
	const void*	src,		/*!< in: data value */
	ib_ulint_t	len,		/*!< in: data value len */
	ib_bool_t	need_cpy);	/*!< in: if need memcpy */


/*****************************************************************//**
Get the size of the data available in the column the tuple.
@return	bytes avail or IB_SQL_NULL */

ib_ulint_t
ib_col_get_len(
/*===========*/
	ib_tpl_t	ib_tpl,		/*!< in: tuple instance */
	ib_ulint_t	i);		/*!< in: column index in tuple */

/*****************************************************************//**
Copy a column value from the tuple.
@return	bytes copied or IB_SQL_NULL */

ib_ulint_t
ib_col_copy_value(
/*==============*/
	ib_tpl_t	ib_tpl,		/*!< in: tuple instance */
	ib_ulint_t	i,		/*!< in: column index in tuple */
	void*		dst,		/*!< out: copied data value */
	ib_ulint_t	len);		/*!< in: max data value len to copy */

/*************************************************************//**
Read a signed int 8 bit column from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_i8(
/*=============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i,		/*!< in: column number */
	ib_i8_t*	ival);		/*!< out: integer value */

/*************************************************************//**
Read an unsigned int 8 bit column from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_u8(
/*=============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i,		/*!< in: column number */
	ib_u8_t*	ival);		/*!< out: integer value */

/*************************************************************//**
Read a signed int 16 bit column from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_i16(
/*==============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i,		/*!< in: column number */
	ib_i16_t*	ival);		/*!< out: integer value */

/*************************************************************//**
Read an unsigned int 16 bit column from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_u16(
/*==============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i,		/*!< in: column number */
	ib_u16_t*	ival);		/*!< out: integer value */

/*************************************************************//**
Read a signed int 32 bit column from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_i32(
/*==============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i,		/*!< in: column number */
	ib_i32_t*	ival);		/*!< out: integer value */

/*************************************************************//**
Read an unsigned int 32 bit column from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_u32(
/*==============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i,		/*!< in: column number */
	ib_u32_t*	ival);		/*!< out: integer value */

/*************************************************************//**
Read a signed int 64 bit column from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_i64(
/*==============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i,		/*!< in: column number */
	ib_i64_t*	ival);		/*!< out: integer value */

/*************************************************************//**
Read an unsigned int 64 bit column from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_u64(
/*==============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i,		/*!< in: column number */
	ib_u64_t*	ival);		/*!< out: integer value */

/*****************************************************************//**
Get a column value pointer from the tuple.
@return	NULL or pointer to buffer */

const void*
ib_col_get_value(
/*=============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i);		/*!< in: column number */

/*****************************************************************//**
Get a column type, length and attributes from the tuple.
@return	len of column data */

ib_ulint_t
ib_col_get_meta(
/*============*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	i,		/*!< in: column number */
	ib_col_meta_t*	ib_col_meta);	/*!< out: column meta data */

/*****************************************************************//**
"Clear" or reset an InnoDB tuple. We free the heap and recreate the tuple.
@return	new tuple, or NULL */

ib_tpl_t
ib_tuple_clear(
/*============*/
	ib_tpl_t	ib_tpl);	/*!< in: InnoDB tuple */

/*****************************************************************//**
Create a new cluster key search tuple and copy the contents of  the
secondary index key tuple columns that refer to the cluster index record
to the cluster key. It does a deep copy of the column data.
@return	DB_SUCCESS or error code */

ib_err_t
ib_tuple_get_cluster_key(
/*=====================*/
	ib_crsr_t	ib_crsr,	/*!< in: secondary index cursor */
	ib_tpl_t*	ib_dst_tpl,	/*!< out,own: destination tuple */
	const ib_tpl_t	ib_src_tpl);	/*!< in: source tuple */

/*****************************************************************//**
Copy the contents of  source tuple to destination tuple. The tuples
must be of the same type and belong to the same table/index.
@return	DB_SUCCESS or error code */

ib_err_t
ib_tuple_copy(
/*==========*/
	ib_tpl_t	ib_dst_tpl,	/*!< in: destination tuple */
	const ib_tpl_t	ib_src_tpl);	/*!< in: source tuple */

/*****************************************************************//**
Create an InnoDB tuple used for index/table search.
@return tuple for current index */

ib_tpl_t
ib_sec_search_tuple_create(
/*=======================*/
	ib_crsr_t	ib_crsr);	/*!< in: Cursor instance */

/*****************************************************************//**
Create an InnoDB tuple used for index/table search.
@return	tuple for current index */

ib_tpl_t
ib_sec_read_tuple_create(
/*=====================*/
	ib_crsr_t	ib_crsr);	/*!< in: Cursor instance */

/*****************************************************************//**
Create an InnoDB tuple used for table key operations.
@return	tuple for current table */

ib_tpl_t
ib_clust_search_tuple_create(
/*=========================*/
	ib_crsr_t	ib_crsr);	/*!< in: Cursor instance */

/*****************************************************************//**
Create an InnoDB tuple for table row operations.
@return	tuple for current table */

ib_tpl_t
ib_clust_read_tuple_create(
/*=======================*/
	ib_crsr_t	ib_crsr);	/*!< in: Cursor instance */

/*****************************************************************//**
Return the number of user columns in the tuple definition.
@return	number of user columns */

ib_ulint_t
ib_tuple_get_n_user_cols(
/*=====================*/
	const ib_tpl_t	ib_tpl);	/*!< in: Tuple for current table */

/*****************************************************************//**
Return the number of columns in the tuple definition.
@return	number of columns */

ib_ulint_t
ib_tuple_get_n_cols(
/*================*/
	const ib_tpl_t	ib_tpl);	/*!< in: Tuple for current table */

/*****************************************************************//**
Destroy an InnoDB tuple. */

void
ib_tuple_delete(
/*============*/
	ib_tpl_t	ib_tpl);	/*!< in,own: Tuple instance to delete */

/*****************************************************************//**
Truncate a table. The cursor handle will be closed and set to NULL
on success.
@return	DB_SUCCESS or error code */

ib_err_t
ib_cursor_truncate(
/*===============*/
	ib_crsr_t*	ib_crsr,	/*!< in/out: cursor for table
					to truncate */
	ib_id_u64_t*	table_id);	/*!< out: new table id */

/*****************************************************************//**
Get a table id.
@return	DB_SUCCESS if found */

ib_err_t
ib_table_get_id(
/*============*/
	const char*	table_name,	/*!< in: table to find */
	ib_id_u64_t*	table_id);	/*!< out: table id if found */

/*****************************************************************//**
Get an index id.
@return	DB_SUCCESS if found */

ib_err_t
ib_index_get_id(
/*============*/
	const char*	table_name,	/*!< in: find index for this table */
	const char*	index_name,	/*!< in: index to find */
	ib_id_u64_t*	index_id);	/*!< out: index id if found */

/*****************************************************************//**
Check if cursor is positioned.
@return	IB_TRUE if positioned */

ib_bool_t
ib_cursor_is_positioned(
/*====================*/
	const ib_crsr_t	ib_crsr);	/*!< in: InnoDB cursor instance */

/*****************************************************************//**
Checks if the data dictionary is latched in exclusive mode by a
user transaction.
@return TRUE if exclusive latch */

ib_bool_t
ib_schema_lock_is_exclusive(
/*========================*/
	const ib_trx_t	ib_trx);	/*!< in: transaction */

/*****************************************************************//**
Lock an InnoDB cursor/table.
@return	DB_SUCCESS or error code */

ib_err_t
ib_cursor_lock(
/*===========*/
	ib_crsr_t	ib_crsr,	/*!< in/out: InnoDB cursor */
	ib_lck_mode_t	ib_lck_mode);	/*!< in: InnoDB lock mode */

/*****************************************************************//**
Set the Lock an InnoDB table using the table id.
@return	DB_SUCCESS or error code */

ib_err_t
ib_table_lock(
/*===========*/
	ib_trx_t	ib_trx,		/*!< in/out: transaction */
	ib_id_u64_t	table_id,	/*!< in: table id */
	ib_lck_mode_t	ib_lck_mode);	/*!< in: InnoDB lock mode */

/*****************************************************************//**
Set the Lock mode of the cursor.
@return	DB_SUCCESS or error code */

ib_err_t
ib_cursor_set_lock_mode(
/*====================*/
	ib_crsr_t	ib_crsr,	/*!< in/out: InnoDB cursor */
	ib_lck_mode_t	ib_lck_mode);	/*!< in: InnoDB lock mode */

/*****************************************************************//**
Set need to access clustered index record flag. */

void
ib_cursor_set_cluster_access(
/*=========================*/
	ib_crsr_t	ib_crsr);	/*!< in/out: InnoDB cursor */

/*****************************************************************//**
Write an integer value to a column. Integers are stored in big-endian
format and will need to be converted from the host format.
@return	DB_SUCESS or error */

ib_err_t
ib_tuple_write_i8(
/*==============*/
	ib_tpl_t	ib_tpl,		/*!< in/out: tuple to write to */
	int		col_no,		/*!< in: column number */
	ib_i8_t		val);		/*!< in: value to write */

/*****************************************************************//**
Write an integer value to a column. Integers are stored in big-endian
format and will need to be converted from the host format.
@return	DB_SUCESS or error */

ib_err_t
ib_tuple_write_i16(
/*=================*/
	ib_tpl_t	ib_tpl,		/*!< in/out: tuple to write to */
	int		col_no,		/*!< in: column number */
	ib_i16_t	val);		/*!< in: value to write */

/*****************************************************************//**
Write an integer value to a column. Integers are stored in big-endian
format and will need to be converted from the host format.
@return	DB_SUCESS or error */

ib_err_t
ib_tuple_write_i32(
/*===============*/
	ib_tpl_t	ib_tpl,		/*!< in/out: tuple to write to */
	int		col_no,		/*!< in: column number */
	ib_i32_t	val);		/*!< in: value to write */

/*****************************************************************//**
Write an integer value to a column. Integers are stored in big-endian
format and will need to be converted from the host format.
@return	DB_SUCESS or error */

ib_err_t
ib_tuple_write_i64(
/*===============*/
	ib_tpl_t	ib_tpl,		/*!< in/out: tuple to write to */
	int		col_no,		/*!< in: column number */
	ib_i64_t	val);		/*!< in: value to write */

/*****************************************************************//**
Write an integer value to a column. Integers are stored in big-endian
format and will need to be converted from the host format.
@return	DB_SUCESS or error */

ib_err_t
ib_tuple_write_u8(
/*==============*/
	ib_tpl_t	ib_tpl,		/*!< in/out: tuple to write to */
	int		col_no,		/*!< in: column number */
	ib_u8_t		val);		/*!< in: value to write */

/*****************************************************************//**
Write an integer value to a column. Integers are stored in big-endian
format and will need to be converted from the host format.
@return	DB_SUCESS or error */

ib_err_t
ib_tuple_write_u16(
/*===============*/
	ib_tpl_t	ib_tpl,		/*!< in/out: tuple to write to */
	int		col_no,		/*!< in: column number */
	ib_u16_t	val);		/*!< in: value to write */

/*****************************************************************//**
Write an integer value to a column. Integers are stored in big-endian
format and will need to be converted from the host format.
@return	DB_SUCESS or error */

ib_err_t
ib_tuple_write_u32(
/*=================*/
	ib_tpl_t	ib_tpl,		/*!< in/out: tuple to write to */
	int		col_no,		/*!< in: column number */
	ib_u32_t	val);		/*!< in: value to write */

/*****************************************************************//**
Write an integer value to a column. Integers are stored in big-endian
format and will need to be converted from the host format.
@return	DB_SUCESS or error */

ib_err_t
ib_tuple_write_u64(
/*===============*/
	ib_tpl_t	ib_tpl,		/*!< in/out: tuple to write to */
	int		col_no,		/*!< in: column number */
	ib_u64_t	val);		/*!< in: value to write */

/*****************************************************************//**
Inform the cursor that it's the start of an SQL statement. */

void
ib_cursor_stmt_begin(
/*=================*/
	ib_crsr_t	ib_crsr);	/*!< in: cursor */

/*****************************************************************//**
Write a double value to a column.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_write_double(
/*==================*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	int		col_no,		/*!< in: column number */
	double		val);		/*!< in: value to write */

/*************************************************************//**
Read a double column value from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_double(
/*=================*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	col_no,		/*!< in: column number */
	double*		dval);		/*!< out: double value */

/*****************************************************************//**
Write a float value to a column.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_write_float(
/*=================*/
	ib_tpl_t	ib_tpl,		/*!< in/out: tuple to write to */
	int		col_no,		/*!< in: column number */
	float		val);		/*!< in: value to write */

/*************************************************************//**
Read a float value from an InnoDB tuple.
@return	DB_SUCCESS or error */

ib_err_t
ib_tuple_read_float(
/*================*/
	ib_tpl_t	ib_tpl,		/*!< in: InnoDB tuple */
	ib_ulint_t	col_no,		/*!< in: column number */
	float*		fval);		/*!< out: float value */

/*****************************************************************//**
Get a column type, length and attributes from the tuple.
@return len of column data */

const char*
ib_col_get_name(
/*============*/
	ib_crsr_t	ib_crsr,	/*!< in: InnoDB cursor instance */
	ib_ulint_t	i);		/*!< in: column index in tuple */

/*****************************************************************//**
Get an index field name from the cursor.
@return name of the field */

const char*
ib_get_idx_field_name(
/*==================*/
	ib_crsr_t	ib_crsr,	/*!< in: InnoDB cursor instance */
	ib_ulint_t	i);		/*!< in: column index in tuple */

/*****************************************************************//**
Truncate a table.
@return DB_SUCCESS or error code */

ib_err_t
ib_table_truncate(
/*==============*/
	const char*	table_name,	/*!< in: table name */
	ib_id_u64_t*	table_id);	/*!< out: new table id */

/*****************************************************************//**
Frees a possible InnoDB trx object associated with the current THD.
@return DB_SUCCESS or error number */

ib_err_t
ib_close_thd(
/*=========*/
	void*		thd);		/*!< in: handle to the MySQL
					thread of the user whose resources
					should be free'd */

/*****************************************************************//**
Get generic configure status
@return configure status*/

int
ib_cfg_get_cfg();
/*============*/

/*****************************************************************//**
Increase/decrease the memcached sync count of table to sync memcached
DML with SQL DDLs.
@return DB_SUCCESS or error number */
ib_err_t
ib_cursor_set_memcached_sync(
/*=========================*/
	ib_crsr_t	ib_crsr,	/*!< in: cursor */
	ib_bool_t	flag);		/*!< in: true for increasing */

/*****************************************************************//**
Check whether the table name conforms to our requirements. Currently
we only do a simple check for the presence of a '/'.
@return DB_SUCCESS or err code */

ib_err_t
ib_table_name_check(
/*================*/
	const char*	name);		/*!< in: table name to check */

/*****************************************************************//**
Return isolation configuration set by "innodb_api_trx_level"
@return trx isolation level*/

ib_trx_state_t
ib_cfg_trx_level();
/*==============*/

/*****************************************************************//**
Return configure value for background commit interval (in seconds)
@return background commit interval (in seconds) */

ib_ulint_t
ib_cfg_bk_commit_interval();
/*=======================*/

/*****************************************************************//**
Get a trx start time.
@return trx start_time */

ib_u64_t
ib_trx_get_start_time(
/*==================*/
	ib_trx_t	ib_trx);	/*!< in: transaction */

#endif /* api0api_h */