X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fcrcsync%2Fcrcsync.h;h=db64b0f662ae809a4a9c388e38c1fba3ede3f7ec;hp=4b25562bbb793d6f1bd9b193d785a963eca5aaf6;hb=14ec8920c533db9684d3b520f4b694271b88dfd9;hpb=c934a7a21d9ea8aa421d62a65a93f46c95adb535 diff --git a/ccan/crcsync/crcsync.h b/ccan/crcsync/crcsync.h index 4b25562b..db64b0f6 100644 --- a/ccan/crcsync/crcsync.h +++ b/ccan/crcsync/crcsync.h @@ -8,28 +8,28 @@ * @data: pointer to the buffer to CRC * @len: length of the buffer * @blocksize: CRC of each block (final block may be shorter) - * @crcbits: the number of bits of crc you want (currently 32 maximum) + * @crcbits: the number of bits of crc you want (currently 64 maximum) * @crc: the crcs (array will have (len + blocksize-1)/blocksize entries). * * Calculates the CRC of each block, and output the lower @crcbits to * @crc array. */ void crc_of_blocks(const void *data, size_t len, unsigned int blocksize, - unsigned int crcbits, uint32_t crc[]); + unsigned int crcbits, uint64_t crc[]); /** * crc_context_new - allocate and initialize state for crc_find_block - * @blocksize: the sie of each block - * @crcbits: the bits valid in the CRCs (<= 32) - * @crc: array of block crcs + * @blocksize: the size of each block + * @crcbits: the bits valid in the CRCs (<= 64) + * @crc: array of block crcs (including final block, if any) * @num_crcs: number of block crcs - * @final_size: the final block size (<= blocksize). + * @tail_size: the size of final partial block, if any (< blocksize). * * Returns an allocated pointer to the structure for crc_find_block, - * or NULL. Makes a copy of @crc and @num_crcs. + * or NULL. Makes a copy of @crc. */ struct crc_context *crc_context_new(size_t blocksize, unsigned crcbits, - const uint32_t crc[], unsigned num_crcs, + const uint64_t crc[], unsigned num_crcs, size_t final_size); /**