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authorLars Hjemli <hjemli@gmail.com>2006-12-10 21:31:36 (UTC)
committer Lars Hjemli <hjemli@gmail.com>2006-12-10 21:31:36 (UTC)
commit25105d7ecaba474d4b7c364ebb586aac3dfc5abb (patch) (unidiff)
tree8beb08db1399b8efb8c7fbcd936044ae7fc232e6 /cgit.h
parent856c026e221d8ed82c5b75bc8da4bd65e89ea953 (diff)
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Add caching infrastructure
This enables internal caching of page output. Page requests are split into four groups: 1) repo listing (front page) 2) repo summary 3) repo pages w/symbolic references in query string 4) repo pages w/constant sha1's in query string Each group has a TTL specified in minutes. When a page is requested, a cached filename is stat(2)'ed and st_mtime is compared to time(2). If TTL has expired (or the file didn't exist), the cached file is regenerated. When generating a cached file, locking is used to avoid parallell processing of the request. If multiple processes tries to aquire the same lock, the ones who fail to get the lock serves the (expired) cached file. If the cached file don't exist, the process instead calls sched_yield(2) before restarting the request processing. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Diffstat (limited to 'cgit.h') (more/less context) (ignore whitespace changes)
-rw-r--r--cgit.h47
1 files changed, 45 insertions, 2 deletions
diff --git a/cgit.h b/cgit.h
index 19f7ba7..1e084d4 100644
--- a/cgit.h
+++ b/cgit.h
@@ -1,21 +1,64 @@
1#ifndef CGIT_H 1#ifndef CGIT_H
2#define CGIT_H 2#define CGIT_H
3 3
4#include "git.h" 4#include "git.h"
5#include <openssl/sha.h> 5#include <openssl/sha.h>
6#include <ctype.h>
7#include <sched.h>
8
9typedef void (*configfn)(const char *name, const char *value);
10
11struct cacheitem {
12 char *name;
13 struct stat st;
14 int ttl;
15 int fd;
16};
17
18extern char *cgit_root;
19extern char *cgit_root_title;
20extern char *cgit_css;
21extern char *cgit_logo;
22extern char *cgit_logo_link;
23extern char *cgit_virtual_root;
24extern char *cgit_cache_root;
25
26extern int cgit_cache_root_ttl;
27extern int cgit_cache_repo_ttl;
28extern int cgit_cache_dynamic_ttl;
29extern int cgit_cache_static_ttl;
30extern int cgit_cache_max_create_time;
31
32extern char *cgit_repo_name;
33extern char *cgit_repo_desc;
34extern char *cgit_repo_owner;
35
36extern int cgit_query_has_symref;
37extern int cgit_query_has_sha1;
38
39extern char *cgit_querystring;
40extern char *cgit_query_repo;
41extern char *cgit_query_page;
42extern char *cgit_query_head;
43extern char *cgit_query_sha1;
44
45extern int htmlfd;
6 46
7extern char *fmt(const char *format,...); 47extern char *fmt(const char *format,...);
8 48
9extern void html(const char *txt); 49extern void html(const char *txt);
10extern void htmlf(const char *format,...); 50extern void htmlf(const char *format,...);
11extern void html_txt(char *txt); 51extern void html_txt(char *txt);
12extern void html_attr(char *txt); 52extern void html_attr(char *txt);
13
14extern void html_link_open(char *url, char *title, char *class); 53extern void html_link_open(char *url, char *title, char *class);
15extern void html_link_close(void); 54extern void html_link_close(void);
16 55
17typedef void (*configfn)(const char *name, const char *value);
18 56
19extern int cgit_read_config(const char *filename, configfn fn); 57extern int cgit_read_config(const char *filename, configfn fn);
20 58
59extern int cache_lookup(struct cacheitem *item);
60extern int cache_lock(struct cacheitem *item);
61extern int cache_unlock(struct cacheitem *item);
62extern int cache_expired(struct cacheitem *item);
63
21#endif /* CGIT_H */ 64#endif /* CGIT_H */