pg_crc.c File Reference

#include "postgres.h"
#include "port/pg_crc32c.h"
#include "utils/fmgrprotos.h"
#include "utils/pg_crc.h"
#include "varatt.h"

Include dependency graph for pg_crc.c:

Go to the source code of this file.

Functions
Datum	crc32_bytea (PG_FUNCTION_ARGS)
Datum	crc32c_bytea (PG_FUNCTION_ARGS)

Variables
const uint32	pg_crc32_table [256]

Function Documentation

crc32_bytea()

Datum crc32_bytea

(

PG_FUNCTION_ARGS

)

Definition at line 107 of file pg_crc.c.

{
    bytea      *in = PG_GETARG_BYTEA_PP(0);
    pg_crc32    crc;
 
    INIT_TRADITIONAL_CRC32(crc);
    COMP_TRADITIONAL_CRC32(crc, VARDATA_ANY(in), VARSIZE_ANY_EXHDR(in));
    FIN_TRADITIONAL_CRC32(crc);
 
    PG_RETURN_INT64(crc);
}

References COMP_TRADITIONAL_CRC32, crc, FIN_TRADITIONAL_CRC32, INIT_TRADITIONAL_CRC32, PG_GETARG_BYTEA_PP, PG_RETURN_INT64, VARDATA_ANY(), and VARSIZE_ANY_EXHDR().

crc32c_bytea()

Datum crc32c_bytea

(

PG_FUNCTION_ARGS

)

Definition at line 120 of file pg_crc.c.

{
    bytea      *in = PG_GETARG_BYTEA_PP(0);
    pg_crc32c   crc;
 
    INIT_CRC32C(crc);
    COMP_CRC32C(crc, VARDATA_ANY(in), VARSIZE_ANY_EXHDR(in));
    FIN_CRC32C(crc);
 
    PG_RETURN_INT64(crc);
}

References COMP_CRC32C, crc, FIN_CRC32C, INIT_CRC32C, PG_GETARG_BYTEA_PP, PG_RETURN_INT64, VARDATA_ANY(), and VARSIZE_ANY_EXHDR().

Variable Documentation

pg_crc32_table

const uint32 pg_crc32_table[256]

Definition at line 35 of file pg_crc.c.