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/*
	WARNING: This file was generated by dkct.
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk4dbit.ctr
*/

/*
Copyright (C) 2015-2017, Dirk Krause

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above opyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
  to endorse or promote products derived from this software without specific
  prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef DK4DBIT_H_INCLUDED
/** Avoid multiple inclusions. */
#define DK4DBIT_H_INCLUDED 1


#line 10 "dk4dbit.ctr"

/**	@file	dk4dbit.h	Text (dkChar) in database.
*/

#ifndef DK4DBI_H_INCLUDED
#include <dk4dbi.h>
#endif

#ifndef	DK4DBIT8_H_INCLUDED
#include <dk4dbit8.h>
#endif

#ifndef	DK4DBITW_H_INCLUDED
#include <dk4dbitw.h>
#endif

#if DK4_CHAR_SIZE > 1
/**	Function to traverse text database.
*/
typedef dk4dbi_wc_traverse_fct_t dk4dbi_text_traverse_fct;
#else
/**	Function to traverse text database.
*/
typedef dk4dbi_c8_traverse_fct_t dk4dbi_text_traverse_fct;
#endif


#ifdef __cplusplus
extern "C" {
#endif

/**	Set text entry.
	@param	db	Database to modify.
	@param	k	Key text.
	@param	v	Value text.
	@param	erp	Error report, may be NULL.
	@return	1 on success, 0 on error.

	Error codes:
	- DK4_E_INVALID_ARGUMENTS<br>
	  if db, k or vis NULL,
	- DK4_E_SYNTAX<br>
	  if the database was opened read-only or k or v
	  is too long.
	- DK4_E_MATH_OVERFLOW<br>
	  on numeric overflow in size calculation,
	- DK4_E_NOT_SUPPORTED<br>
	  if db indicates an unsupported backend,
	- DK4_E_NOT_FOUND<br>
	  if no record to delete was found,
	- DK4_E_MEMORY_ALLOCATION_FAILED<br>
	  with mem.elsize and mem.nelem
	  set if there is not enough memory available,
	- DK4_E_WRITE_FAILED<br>
	  if modification of the database failed.
*/
int
dk4dbi_text_set(
  dk4_dbi_t	*db,
  const dkChar	*k,
  const dkChar	*v,
  dk4_er_t	*erp
);

/**	Retrieve text entry.
	@param	db	Database to query.
	@param	k	Key text.
	@param	vbuf	Result buffer address.
	@param	vsz	Pointer to size variable (in: size, out: used),
			number of dkChar.
	@param	erp	Error report, may be NULL.
	@return	1 on success, 0 on error.

	Error codes:
	- DK4_E_INVALID_ARGUMENTS<br>
	  if db, k or vbufis NULL or vsz is 0,
	  or the length of k exceeds the key size limit,
	- DK4_E_MATH_OVERFLOW<br>
	  on numeric overflow in size calculation,
	- DK4_E_NOT_SUPPORTED<br>
	  if db indicates an unsupported backend,
	- DK4_E_NOT_FOUND<br>
	  if no record was found for the key,
	- DK4_E_BUFFER_TOO_SMALL<br>
	  if the destination buffer is too small.
*/
int
dk4dbi_text_get(
  dk4_dbi_t	*db,
  const dkChar	*k,
  dkChar	*vbuf,
  size_t	 vsz,
  dk4_er_t	*erp
);

/**	Delete text entry.
	@param	db	Database to modify.
	@param	k	Key text.
	@param	erp	Error report, may be NULL.
	@return	1 on success, 0 on error.

	Error codes:
	- DK4_E_INVALID_ARGUMENTS<br>
	  if db or k is NULL,
	- DK4_E_SYNTAX<br>
	  if the database is opened read-only or the length of
	  k exceeds the key size limit,
	- DK4_E_MATH_OVERFLOW<br>
	  on numeric overflow in size calculation,
	- DK4_E_NOT_SUPPORTED<br>
	  if db indicates an unsupported backend,
	- DK4_E_WRITE_FAILED<br>
	  if modification of the database failed,
	- DK4_E_NOT_FOUND<br>
	  if no record for the specified key is in the database.
*/
int
dk4dbi_text_del(
  dk4_dbi_t	*db,
  const dkChar	*k,
  dk4_er_t	*erp
);

/**	Traverse database, apply function to all text entries.
	@param	db	Database to traverse.
	@param	obj	Object to modify during traversal.
	@param	fct	Function to apply to all text entries.
	@return	1 on success, 0 on error (database traversed),
	-1 on error (traversal aborted).
*/
int
dk4dbi_text_traverse(
  dk4_dbi_t			*db,
  void				*obj,
  dk4dbi_text_traverse_fct	*fct
);

#ifdef __cplusplus
}
#endif


#endif