Tree @release-0.7.27 (Download .tar.gz)
- ..
- nginx.c
- nginx.h
- ngx_array.c
- ngx_array.h
- ngx_buf.c
- ngx_buf.h
- ngx_conf_file.c
- ngx_conf_file.h
- ngx_config.h
- ngx_connection.c
- ngx_connection.h
- ngx_core.h
- ngx_cpuinfo.c
- ngx_crc.h
- ngx_crc32.c
- ngx_crc32.h
- ngx_cycle.c
- ngx_cycle.h
- ngx_file.c
- ngx_file.h
- ngx_garbage_collector.c
- ngx_garbage_collector.h
- ngx_hash.c
- ngx_hash.h
- ngx_inet.c
- ngx_inet.h
- ngx_list.c
- ngx_list.h
- ngx_log.c
- ngx_log.h
- ngx_md5.h
- ngx_open_file_cache.c
- ngx_open_file_cache.h
- ngx_output_chain.c
- ngx_palloc.c
- ngx_palloc.h
- ngx_parse.c
- ngx_parse.h
- ngx_queue.c
- ngx_queue.h
- ngx_radix_tree.c
- ngx_radix_tree.h
- ngx_rbtree.c
- ngx_rbtree.h
- ngx_regex.c
- ngx_regex.h
- ngx_resolver.c
- ngx_resolver.h
- ngx_sha1.h
- ngx_shmtx.c
- ngx_shmtx.h
- ngx_slab.c
- ngx_slab.h
- ngx_spinlock.c
- ngx_string.c
- ngx_string.h
- ngx_times.c
- ngx_times.h
ngx_crc.h @release-0.7.27 — raw · history · blame
/*
* Copyright (C) Igor Sysoev
*/
#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_ */
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