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Annotation of embedaddon/istgt/src/istgt_crc32c.h, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2008-2010 Daisuke Aoyama <aoyama@peach.ne.jp>.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  *
                     14:  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
                     15:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     16:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     17:  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
                     18:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     19:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     20:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     21:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     22:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     23:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     24:  * SUCH DAMAGE.
                     25:  *
                     26:  */
                     27: 
                     28: #ifndef ISTGT_CRC32C_H
                     29: #define ISTGT_CRC32C_H
                     30: 
                     31: #include <stdint.h>
                     32: #include <stddef.h>
                     33: #include <sys/uio.h>
                     34: 
                     35: #define ISTGT_USE_CRC32C_TABLE
                     36: #define ISTGT_CRC32C_INITIAL    0xffffffffUL
                     37: #define ISTGT_CRC32C_XOR        0xffffffffUL
                     38: #define ISTGT_CRC32C_POLYNOMIAL 0x1edc6f41UL
                     39: 
                     40: void istgt_init_crc32c_table(void);
                     41: uint32_t istgt_update_crc32c(const uint8_t *buf, size_t len, uint32_t crc);
                     42: uint32_t istgt_fixup_crc32c(size_t total, uint32_t crc);
                     43: uint32_t istgt_crc32c(const uint8_t *buf, size_t len);
                     44: uint32_t istgt_iovec_crc32c(const struct iovec *iovp, int iovc, uint32_t offset, uint32_t len);
                     45: 
                     46: #endif /* ISTGT_CRC32C_H */