Mercurial > hg > nginx-quic
changeset 1694:8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
ngx_crc32_init(), ngx_crc32_update(), ngx_crc32_final()
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 07 Dec 2007 20:19:41 +0000 |
parents | f4eb04fd8579 |
children | 8c4532a48b0a |
files | src/core/nginx.c src/core/ngx_crc32.c src/core/ngx_crc32.h |
diffstat | 3 files changed, 29 insertions(+), 4 deletions(-) [+] |
line wrap: on
line diff
--- a/src/core/nginx.c +++ b/src/core/nginx.c @@ -273,9 +273,11 @@ main(int argc, char *const *argv) return 1; } - /* ngx_crc32_init() requires ngx_cacheline_size set in ngx_os_init() */ + /* + * ngx_crc32_table_init() requires ngx_cacheline_size set in ngx_os_init() + */ - if (ngx_crc32_init() != NGX_OK) { + if (ngx_crc32_table_init() != NGX_OK) { return 1; }
--- a/src/core/ngx_crc32.c +++ b/src/core/ngx_crc32.c @@ -102,7 +102,7 @@ uint32_t *ngx_crc32_table_short = ngx_cr ngx_int_t -ngx_crc32_init(void) +ngx_crc32_table_init(void) { void *p;
--- a/src/core/ngx_crc32.h +++ b/src/core/ngx_crc32.h @@ -49,7 +49,30 @@ ngx_crc32_long(u_char *p, size_t len) } -ngx_int_t ngx_crc32_init(void); +#define ngx_crc32_init(crc) \ + crc = 0xffffffff + + +static void +ngx_crc32_update(uint32_t *crc, u_char *p, size_t len) +{ + uint32_t c; + + c = *crc; + + while (len--) { + c = ngx_crc32_table256[(c ^ *p++) & 0xff] ^ (c >> 8); + } + + *crc = c; +} + + +#define ngx_crc32_final(crc) \ + crc ^= 0xffffffff + + +ngx_int_t ngx_crc32_table_init(void); #endif /* _NGX_CRC32_H_INCLUDED_ */