bsd/dev/random/YarrowCoreLib/src/comp.h

/*
 * Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 *
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * @APPLE_LICENSE_HEADER_END@
 */

/*
	File:		comp.h

	Contains:	Glue between core prng code to the Zlib library.

	Written by:	Counterpane, Inc.

	Copyright: (c) 2000 by Apple Computer, Inc., all rights reserved.

	Change History (most recent first):

		02/10/99	dpm		Created, based on Counterpane source.

*/
/* comp.h

   Header for the compression routines added to the Counterpane PRNG.
*/

#ifndef __YARROW_COMP_H__
#define __YARROW_COMP_H__

#include "smf.h"

/*
 * Kernel version does NULL compression....
 */
#define YARROW_KERNEL

#ifdef	YARROW_KERNEL
/*
 * Shrink this down to almost nothing to simplify kernel port;
 * with additional hacking on prng.c, this could go away entirely
 */
typedef char COMP_CTX;

/* and define some type3s normally picked up from zlib */
typedef unsigned char Bytef;
typedef unsigned uInt;

#else

#include "zlib.h"

/* Top level compression context */
typedef struct{
	MMPTR buf;
	uInt spaceused;
} COMP_CTX;
#endif	/* YARROW_KERNEL */

typedef enum comp_error_status {
	COMP_SUCCESS = 0,
	COMP_ERR_NULL_POINTER,
	COMP_ERR_LOW_MEMORY,
	COMP_ERR_LIB
} comp_error_status;

/* Exported functions from compress.c */
comp_error_status comp_init(COMP_CTX* ctx);
comp_error_status comp_add_data(COMP_CTX* ctx,Bytef* inp,uInt inplen);
comp_error_status comp_end(COMP_CTX* ctx);
comp_error_status comp_get_ratio(COMP_CTX* ctx,float* out);

#endif
Commit	Line	Data
	1	/*
	2	* Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22
	23	/*
	24	File: comp.h
	25
	26	Contains: Glue between core prng code to the Zlib library.
	27
	28	Written by: Counterpane, Inc.
	29
	30	Copyright: (c) 2000 by Apple Computer, Inc., all rights reserved.
	31
	32	Change History (most recent first):
	33
	34	02/10/99 dpm Created, based on Counterpane source.
	35
	36	*/
	37	/* comp.h
	38
	39	Header for the compression routines added to the Counterpane PRNG.
	40	*/
	41
	42	#ifndef __YARROW_COMP_H__
	43	#define __YARROW_COMP_H__
	44
	45	#include "smf.h"
	46
	47	/*
	48	* Kernel version does NULL compression....
	49	*/
	50	#define YARROW_KERNEL
	51
	52	#ifdef YARROW_KERNEL
	53	/*
	54	* Shrink this down to almost nothing to simplify kernel port;
	55	* with additional hacking on prng.c, this could go away entirely
	56	*/
	57	typedef char COMP_CTX;
	58
	59	/* and define some type3s normally picked up from zlib */
	60	typedef unsigned char Bytef;
	61	typedef unsigned uInt;
	62
	63	#else
	64
	65	#include "zlib.h"
	66
	67	/* Top level compression context */
	68	typedef struct{
	69	MMPTR buf;
	70	uInt spaceused;
	71	} COMP_CTX;
	72	#endif /* YARROW_KERNEL */
	73
	74	typedef enum comp_error_status {
	75	COMP_SUCCESS = 0,
	76	COMP_ERR_NULL_POINTER,
	77	COMP_ERR_LOW_MEMORY,
	78	COMP_ERR_LIB
	79	} comp_error_status;
	80
	81	/* Exported functions from compress.c */
	82	comp_error_status comp_init(COMP_CTX* ctx);
	83	comp_error_status comp_add_data(COMP_CTX* ctx,Bytef* inp,uInt inplen);
	84	comp_error_status comp_end(COMP_CTX* ctx);
	85	comp_error_status comp_get_ratio(COMP_CTX* ctx,float* out);
	86
	87	#endif