| 1 | /** @file
|
|---|
| 2 | * Incredibly Portable Runtime - CRC32.
|
|---|
| 3 | */
|
|---|
| 4 |
|
|---|
| 5 | /*
|
|---|
| 6 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
|
|---|
| 7 | *
|
|---|
| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 9 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 10 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 11 | * General Public License (GPL) as published by the Free Software
|
|---|
| 12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 15 | *
|
|---|
| 16 | * The contents of this file may alternatively be used under the terms
|
|---|
| 17 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 19 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 20 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 21 | *
|
|---|
| 22 | * You may elect to license modified versions of this file under the
|
|---|
| 23 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 24 | *
|
|---|
| 25 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
|
|---|
| 26 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
|
|---|
| 27 | * additional information or have any questions.
|
|---|
| 28 | */
|
|---|
| 29 |
|
|---|
| 30 | #ifndef ___iprt_crc32_h
|
|---|
| 31 | #define ___iprt_crc32_h
|
|---|
| 32 |
|
|---|
| 33 | #include <iprt/cdefs.h>
|
|---|
| 34 | #include <iprt/types.h>
|
|---|
| 35 |
|
|---|
| 36 |
|
|---|
| 37 | __BEGIN_DECLS
|
|---|
| 38 |
|
|---|
| 39 | /** @defgroup grp_rt_crc32 RTCrc32 - CRC32 Calculation
|
|---|
| 40 | * @ingroup grp_rt
|
|---|
| 41 | * @{
|
|---|
| 42 | */
|
|---|
| 43 |
|
|---|
| 44 | /**
|
|---|
| 45 | * Calculate CRC32 for a memory block.
|
|---|
| 46 | *
|
|---|
| 47 | * @returns CRC32 for the memory block.
|
|---|
| 48 | * @param pv Pointer to the memory block.
|
|---|
| 49 | * @param cb Size of the memory block in bytes.
|
|---|
| 50 | */
|
|---|
| 51 | RTDECL(uint32_t) RTCrc32(const void *pv, size_t cb);
|
|---|
| 52 |
|
|---|
| 53 | /**
|
|---|
| 54 | * Start a multiblock CRC32 calculation.
|
|---|
| 55 | *
|
|---|
| 56 | * @returns Start CRC32.
|
|---|
| 57 | */
|
|---|
| 58 | RTDECL(uint32_t) RTCrc32Start(void);
|
|---|
| 59 |
|
|---|
| 60 | /**
|
|---|
| 61 | * Processes a multiblock of a CRC32 calculation.
|
|---|
| 62 | *
|
|---|
| 63 | * @returns Intermediate CRC32 value.
|
|---|
| 64 | * @param uCRC32 Current CRC32 intermediate value.
|
|---|
| 65 | * @param pv The data block to process.
|
|---|
| 66 | * @param cb The size of the data block in bytes.
|
|---|
| 67 | */
|
|---|
| 68 | RTDECL(uint32_t) RTCrc32Process(uint32_t uCRC32, const void *pv, size_t cb);
|
|---|
| 69 |
|
|---|
| 70 | /**
|
|---|
| 71 | * Complete a multiblock CRC32 calculation.
|
|---|
| 72 | *
|
|---|
| 73 | * @returns CRC32 value.
|
|---|
| 74 | * @param uCRC32 Current CRC32 intermediate value.
|
|---|
| 75 | */
|
|---|
| 76 | RTDECL(uint32_t) RTCrc32Finish(uint32_t uCRC32);
|
|---|
| 77 |
|
|---|
| 78 |
|
|---|
| 79 |
|
|---|
| 80 | /** @} */
|
|---|
| 81 |
|
|---|
| 82 | __END_DECLS
|
|---|
| 83 |
|
|---|
| 84 | #endif
|
|---|
| 85 |
|
|---|
