Mercurial > hg > nginx-quic
view src/core/ngx_crc.h @ 8587:185c86b830ef
Request body: introduced rb->last_saved flag.
It indicates that the last buffer was received by the save filter,
and can be used to check this at higher levels. To be used in the
following changes.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sun, 29 Aug 2021 22:21:03 +0300 |
parents | d620f497c50f |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_CRC_H_INCLUDED_ #define _NGX_CRC_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> /* 32-bit crc16 */ static ngx_inline uint32_t ngx_crc(u_char *data, size_t len) { uint32_t sum; for (sum = 0; len; len--) { /* * gcc 2.95.2 x86 and icc 7.1.006 compile * that operator into the single "rol" opcode, * msvc 6.0sp2 compiles it into four opcodes. */ sum = sum >> 1 | sum << 31; sum += *data++; } return sum; } #endif /* _NGX_CRC_H_INCLUDED_ */