-rw-r--r-- | cache.c | 6 | ||||
-rw-r--r-- | cgit.c | 18 | ||||
-rw-r--r-- | cgit.h | 3 |
3 files changed, 16 insertions, 11 deletions
@@ -5,17 +5,17 @@ * Licensed under GNU General Public License v2 * (see COPYING for full license text) */ #include "cgit.h" const int NOLOCK = -1; -int cache_lookup(struct cacheitem *item) +void cache_prepare(struct cacheitem *item) { if (!cgit_query_repo) { item->name = xstrdup(fmt("%s/index.html", cgit_cache_root)); item->ttl = cgit_cache_root_ttl; } else if (!cgit_query_page) { item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root, cgit_query_repo)); item->ttl = cgit_cache_repo_ttl; @@ -25,16 +25,20 @@ int cache_lookup(struct cacheitem *item) cgit_querystring)); if (cgit_query_has_symref) item->ttl = cgit_cache_dynamic_ttl; else if (cgit_query_has_sha1) item->ttl = cgit_cache_static_ttl; else item->ttl = cgit_cache_repo_ttl; } +} + +int cache_exist(struct cacheitem *item) +{ if (stat(item->name, &item->st)) { item->st.st_mtime = 0; return 0; } return 1; } int cache_create_dirs() @@ -460,30 +460,30 @@ static void cgit_fill_cache(struct cacheitem *item) if (cgit_query_repo) cgit_print_repo_page(); else cgit_print_repolist(); } static void cgit_refresh_cache(struct cacheitem *item) { + cache_prepare(item); top: - if (!cache_lookup(item)) { - if (cache_lock(item)) { - cgit_fill_cache(item); - cache_unlock(item); - } else { + if (!cache_exist(item)) { + if (!cache_lock(item)) { sched_yield(); goto top; } - } else if (cache_expired(item)) { - if (cache_lock(item)) { + if (!cache_exist(item)) cgit_fill_cache(item); - cache_unlock(item); - } + cache_unlock(item); + } else if (cache_expired(item) && cache_lock(item)) { + if (cache_expired(item)) + cgit_fill_cache(item); + cache_unlock(item); } } static void cgit_print_cache(struct cacheitem *item) { static char buf[4096]; ssize_t i; @@ -51,14 +51,15 @@ extern void htmlf(const char *format,...); extern void html_txt(char *txt); extern void html_attr(char *txt); extern void html_link_open(char *url, char *title, char *class); extern void html_link_close(void); extern int cgit_read_config(const char *filename, configfn fn); -extern int cache_lookup(struct cacheitem *item); +extern void cache_prepare(struct cacheitem *item); extern int cache_lock(struct cacheitem *item); extern int cache_unlock(struct cacheitem *item); +extern int cache_exist(struct cacheitem *item); extern int cache_expired(struct cacheitem *item); #endif /* CGIT_H */ |