ut0crc32.h File Reference

#include "univ.i"

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Typedefs
typedef ib_uint32_t(*	ib_ut_crc32_t )(const byte *ptr, ulint len)

Functions
UNIV_INTERN void	ut_crc32_init ()

Variables
ib_ut_crc32_t	ut_crc32
bool	ut_crc32_sse2_enabled

Detailed Description

CRC32 implementation

Created Aug 10, 2011 Vasil Dimov

Definition in file ut0crc32.h.

Typedef Documentation

typedef ib_uint32_t(* ib_ut_crc32_t)(const byte *ptr, ulint len)

Calculates CRC32.

Parameters

ptr	- data over which to calculate CRC32.
len	- data length in bytes.

Returns

CRC32 (CRC-32C, using the GF(2) primitive polynomial 0x11EDC6F41, or 0x1EDC6F41 without the high-order bit)

Definition at line 45 of file ut0crc32.h.

Function Documentation

UNIV_INTERN void ut_crc32_init

(

)

Initializes the data structures used by ut_crc32(). Does not do any allocations, would not hurt if called twice, but would be pointless.

Definition at line 276 of file ut0crc32.cc.

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