CRC32 Class Reference

Wrapper class for generating CRC-32 checksums. More...

#include "crc32.h"

Static Public Member Functions
static uint32	Generate (const uint8 *buf, size_t bufsize)
static uint32	GenerateNoFlip (const uint8 *buf, size_t bufsize)
static uint32	Update (const uint8 *buf, size_t bufsize, uint32 crc32=0xFFFFFFFF)
static uint32	Finish (uint32 crc32)

Detailed Description

Wrapper class for generating CRC-32 checksums.

Author

Zhur

Definition at line 37 of file crc32.h.

Member Function Documentation

static uint32 CRC32::Finish ( uint32  crc32 )

inlinestatic

Definition at line 46 of file crc32.h.

Referenced by Generate().

{ return ~crc32; }

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static uint32 CRC32::Generate ( const uint8 *  buf, size_t  bufsize  )

inlinestatic

Definition at line 41 of file crc32.h.

References Finish(), and Update().

Referenced by CachedObjectMgr::_UpdateCache(), and CRC32Text().

{ return Finish( Update( buf, bufsize ) ); }

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static uint32 CRC32::GenerateNoFlip ( const uint8 *  buf, size_t  bufsize  )

inlinestatic

Definition at line 42 of file crc32.h.

References Update().

{ return Update( buf, bufsize ); }

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uint32 CRC32::Update ( const uint8 *  buf, size_t  bufsize, uint32  crc32 = 0xFFFFFFFF  )

static

Definition at line 101 of file crc32.cpp.

References CRC32_LOOKUP_TABLE.

Referenced by Generate(), and GenerateNoFlip().

{
    for( size_t i = 0; i < bufsize; ++i )
        crc32 = ( crc32 >> 8 ) ^ CRC32_LOOKUP_TABLE[ buf[ i ] ^ ( crc32 & 0x000000FF ) ];

    return crc32;
}

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The documentation for this class was generated from the following files:

• /backups/local/src/eve/EvEmu_Crucible/src/eve-core/utils/crc32.h
• /backups/local/src/eve/EvEmu_Crucible/src/eve-core/utils/crc32.cpp