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authorGravatar Lars Hjemli <hjemli@gmail.com>2006-12-11 06:31:36 (JST)
committerGravatar Lars Hjemli <hjemli@gmail.com>2006-12-11 06:31:36 (JST)
commit25105d7ecaba474d4b7c364ebb586aac3dfc5abb (patch)
tree8beb08db1399b8efb8c7fbcd936044ae7fc232e6 /git.h
parent856c026e221d8ed82c5b75bc8da4bd65e89ea953 (diff)
downloadcgit-25105d7ecaba474d4b7c364ebb586aac3dfc5abb.zip
cgit-25105d7ecaba474d4b7c364ebb586aac3dfc5abb.tar.gz
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 'git.h')
-rw-r--r--git.h60
1 files changed, 55 insertions, 5 deletions
diff --git a/git.h b/git.h
index 443f216..dfa3542 100644
--- a/git.h
+++ b/git.h
@@ -33,6 +33,26 @@
33#include <time.h> 33#include <time.h>
34 34
35 35
36/* On most systems <limits.h> would have given us this, but
37 * not on some systems (e.g. GNU/Hurd).
38 */
39#ifndef PATH_MAX
40#define PATH_MAX 4096
41#endif
42
43#ifdef __GNUC__
44#define NORETURN __attribute__((__noreturn__))
45#else
46#define NORETURN
47#ifndef __attribute__
48#define __attribute__(x)
49#endif
50#endif
51
52
53extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
54
55
36static inline char* xstrdup(const char *str) 56static inline char* xstrdup(const char *str)
37{ 57{
38 char *ret = strdup(str); 58 char *ret = strdup(str);
@@ -108,9 +128,13 @@ static inline ssize_t xwrite(int fd, const void *buf, size_t len)
108#define MINIMUM_ABBREV 4 128#define MINIMUM_ABBREV 4
109#define DEFAULT_ABBREV 7 129#define DEFAULT_ABBREV 7
110 130
131extern int sha1_object_info(const unsigned char *, char *, unsigned long *);
111 132
112extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size); 133extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
113 134
135extern int get_sha1(const char *str, unsigned char *sha1);
136extern int get_sha1_hex(const char *hex, unsigned char *sha1);
137extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
114 138
115 139
116 140
@@ -183,6 +207,21 @@ struct commit {
183}; 207};
184 208
185 209
210struct commit *lookup_commit(const unsigned char *sha1);
211struct commit *lookup_commit_reference(const unsigned char *sha1);
212struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
213 int quiet);
214
215int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
216int parse_commit(struct commit *item);
217
218struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
219struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
220
221void free_commit_list(struct commit_list *list);
222
223void sort_by_date(struct commit_list **list);
224
186/* Commit formats */ 225/* Commit formats */
187enum cmit_fmt { 226enum cmit_fmt {
188 CMIT_FMT_RAW, 227 CMIT_FMT_RAW,
@@ -197,13 +236,9 @@ enum cmit_fmt {
197 CMIT_FMT_UNSPECIFIED, 236 CMIT_FMT_UNSPECIFIED,
198}; 237};
199 238
239extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char *buf, unsigned long space, int abbrev, const char *subject, const char *after_subject, int relative_date);
200 240
201 241
202struct commit *lookup_commit(const unsigned char *sha1);
203struct commit *lookup_commit_reference(const unsigned char *sha1);
204struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
205 int quiet);
206
207typedef void (*topo_sort_set_fn_t)(struct commit*, void *data); 242typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
208typedef void* (*topo_sort_get_fn_t)(struct commit*); 243typedef void* (*topo_sort_get_fn_t)(struct commit*);
209 244
@@ -306,6 +341,16 @@ enum color_diff {
306 341
307 342
308 343
344/*
345 * from git:refs.g
346 */
347
348typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data);
349extern int head_ref(each_ref_fn, void *);
350extern int for_each_ref(each_ref_fn, void *);
351extern int for_each_tag_ref(each_ref_fn, void *);
352extern int for_each_branch_ref(each_ref_fn, void *);
353extern int for_each_remote_ref(each_ref_fn, void *);
309 354
310 355
311 356
@@ -391,6 +436,11 @@ struct rev_info {
391}; 436};
392 437
393 438
439extern void init_revisions(struct rev_info *revs, const char *prefix);
440extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
441extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
442
443extern void prepare_revision_walk(struct rev_info *revs);
394extern struct commit *get_revision(struct rev_info *revs); 444extern struct commit *get_revision(struct rev_info *revs);
395 445
396 446