Mercurial > hg > nginx
diff src/http/ngx_http_cache.h @ 5880:78c49e243848
Cache: multiple variants of a resource now can be stored.
If a variant stored can't be used to respond to a request, the variant
hash is used as a secondary key.
Additionally, if we previously switched to a secondary key, while storing
a response to cache we check if the variant hash still apply. If not, we
switch back to the original key, to handle cases when Vary changes.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 27 Oct 2014 21:14:10 +0300 |
parents | c525c0454aa5 |
children | 2f7e557eab5b |
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--- a/src/http/ngx_http_cache.h +++ b/src/http/ngx_http_cache.h @@ -65,6 +65,7 @@ struct ngx_http_cache_s { ngx_array_t keys; uint32_t crc32; u_char key[NGX_HTTP_CACHE_KEY_LEN]; + u_char main[NGX_HTTP_CACHE_KEY_LEN]; ngx_file_uniq_t uniq; time_t valid_sec; @@ -102,6 +103,7 @@ struct ngx_http_cache_s { unsigned exists:1; unsigned temp_file:1; unsigned reading:1; + unsigned secondary:1; };