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/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	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: dk4strmh.ctr
*/

#ifndef DK4STRMH_H_INCLUDED
/** Avoid multiple inclusions. */
#define DK4STRMH_H_INCLUDED 1


#line 10 "dk4strmh.ctr"

/**	@file
	Generic dk4_stream_t API for input
				from Windows file handle.
*/

#ifndef DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif

#if DK4_ON_WINDOWS

#ifndef DK4TYPES_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4types.h"
#else
#include <dktools-4/dk4types.h>
#endif
#endif

#ifndef WINDOWS_H_INCLUDED
#include <windows.h>
#define	WINDOWS_H_INCLUDED 1
#endif

#ifndef DK4ERROR_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4error.h"
#else
#include <dktools-4/dk4error.h>
#endif
#endif

#ifndef DK4STRM_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4strm.h"
#else
#include <dktools-4/dk4strm.h>
#endif
#endif

#ifndef STDIO_H_INCLUDED
#include <stdio.h>
#define	STDIO_H_INCLUDED 1
#endif

/**	Structure for keeping a HANDLE.
*/
typedef struct {
  HANDLE		ha;	/**< Windows file handle. */
  int			feof;	/**< Flag: Found EOF while reading. */
} dk4_stream_handle_t;

#ifdef __cplusplus
extern "C" {
#endif

/**	Low level function to access a Windows handle.
	@param	api	The stream API structure for arguments and results.
*/
void
dk4stream_windows_handle_function(dk4_stream_api_t *api);

/**	Low level function to access a Windows handle and close it on
	dk4stream_close().
	@param	api	The stream API structure for arguments and results.
*/
void
dk4stream_windows_handle_with_close_function(dk4_stream_api_t *api);

/**	Open a stream for an existing handle.
	@param	ha	Existing file handle, not closed on dk4stream_close().
	@param	fl	Access flag: DK4_STREAM_READ,, DK4_STREAM_WRITE
			or (DK4_STREAM_READ | DK4_STREAM_WRITE).
	@param	ibs	Input buffer size (0 for default).
	@param	obs	Output buffer size (0 for default).
	@param	erp	Error report, may be NULL.
	@return	Pointer to new stream on success, NULL on error.
*/
dk4_stream_t *
dk4stream_open_for_windows_handle(
  HANDLE		 ha,
  int			 fl,
  size_t		 ibs,
  size_t		 obs,
  dk4_er_t		*erp
);

/**	Open a stream for an existing handle.
	@param	ha	Existing file handle, closed on dk4stream_close().
	@param	fl	Access flag: DK4_STREAM_READ,, DK4_STREAM_WRITE
			or (DK4_STREAM_READ | DK4_STREAM_WRITE).
	@param	ibs	Input buffer size (0 for default).
	@param	obs	Output buffer size (0 for default).
	@param	erp	Error report, may be NULL.
	@return	Pointer to new stream on success, NULL on error.
*/
dk4_stream_t *
dk4stream_open_for_windows_handle_with_close(
  HANDLE		 ha,
  int			 fl,
  size_t		 ibs,
  size_t		 obs,
  dk4_er_t		*erp
);

#ifdef __cplusplus
}
#endif


#endif


#endif