Mercurial > hg > nginx
comparison src/http/modules/ngx_http_charset_filter_module.c @ 1944:be6c9033a798
speed up ngx_http_charset_recode() for 25%: google-perftools reported
that CPU usage of charset body filter has decreased from 7.5% to 5.5%
if gzipping is disabled
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Sun, 16 Mar 2008 16:52:15 +0000 |
| parents | 8f8e0a60685f |
| children | c0bafb136d7b |
comparison
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| 1943:5acc8bea2c49 | 1944:be6c9033a798 |
|---|---|
| 559 | 559 |
| 560 | 560 |
| 561 static ngx_uint_t | 561 static ngx_uint_t |
| 562 ngx_http_charset_recode(ngx_buf_t *b, u_char *table) | 562 ngx_http_charset_recode(ngx_buf_t *b, u_char *table) |
| 563 { | 563 { |
| 564 u_char *p; | 564 u_char *p, *last; |
| 565 | 565 |
| 566 for (p = b->pos; p < b->last; p++) { | 566 last = b->last; |
| 567 | 567 |
| 568 if (*p == table[*p]) { | 568 for (p = b->pos; p < last; p++) { |
| 569 continue; | 569 |
| 570 } | 570 if (*p != table[*p]) { |
| 571 | 571 goto recode; |
| 572 while (p < b->last) { | 572 } |
| 573 } | |
| 574 | |
| 575 return 0; | |
| 576 | |
| 577 recode: | |
| 578 | |
| 579 do { | |
| 580 if (*p != table[*p]) { | |
| 573 *p = table[*p]; | 581 *p = table[*p]; |
| 574 p++; | 582 } |
| 575 } | 583 |
| 576 | 584 p++; |
| 577 b->in_file = 0; | 585 |
| 578 | 586 } while (p < last); |
| 579 return 1; | 587 |
| 580 } | 588 b->in_file = 0; |
| 581 | 589 |
| 582 return 0; | 590 return 1; |
| 583 } | 591 } |
| 584 | 592 |
| 585 | 593 |
| 586 static ngx_chain_t * | 594 static ngx_chain_t * |
| 587 ngx_http_charset_recode_from_utf8(ngx_pool_t *pool, ngx_buf_t *buf, | 595 ngx_http_charset_recode_from_utf8(ngx_pool_t *pool, ngx_buf_t *buf, |