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path: root/cache.c
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Diffstat (limited to 'cache.c') (more/less context) (ignore whitespace changes)
-rw-r--r--cache.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/cache.c b/cache.c
index 372e38d..89f7ecd 100644
--- a/cache.c
+++ b/cache.c
@@ -1,21 +1,22 @@
1/* cache.c: cache management 1/* cache.c: cache management
2 * 2 *
3 * Copyright (C) 2006 Lars Hjemli 3 * Copyright (C) 2006 Lars Hjemli
4 * 4 *
5 * Licensed under GNU General Public License v2 5 * Licensed under GNU General Public License v2
6 * (see COPYING for full license text) 6 * (see COPYING for full license text)
7 */ 7 */
8 8
9#include "cgit.h" 9#include "cgit.h"
10#include "cache.h"
10 11
11const int NOLOCK = -1; 12const int NOLOCK = -1;
12 13
13char *cache_safe_filename(const char *unsafe) 14char *cache_safe_filename(const char *unsafe)
14{ 15{
15 static char buf[4][PATH_MAX]; 16 static char buf[4][PATH_MAX];
16 static int bufidx; 17 static int bufidx;
17 char *s; 18 char *s;
18 char c; 19 char c;
19 20
20 bufidx++; 21 bufidx++;
21 bufidx &= 3; 22 bufidx &= 3;
@@ -35,64 +36,64 @@ int cache_exist(struct cacheitem *item)
35{ 36{
36 if (stat(item->name, &item->st)) { 37 if (stat(item->name, &item->st)) {
37 item->st.st_mtime = 0; 38 item->st.st_mtime = 0;
38 return 0; 39 return 0;
39 } 40 }
40 return 1; 41 return 1;
41} 42}
42 43
43int cache_create_dirs() 44int cache_create_dirs()
44{ 45{
45 char *path; 46 char *path;
46 47
47 path = fmt("%s", cgit_cache_root); 48 path = fmt("%s", ctx.cfg.cache_root);
48 if (mkdir(path, S_IRWXU) && errno!=EEXIST) 49 if (mkdir(path, S_IRWXU) && errno!=EEXIST)
49 return 0; 50 return 0;
50 51
51 if (!cgit_repo) 52 if (!ctx.repo)
52 return 0; 53 return 0;
53 54
54 path = fmt("%s/%s", cgit_cache_root, 55 path = fmt("%s/%s", ctx.cfg.cache_root,
55 cache_safe_filename(cgit_repo->url)); 56 cache_safe_filename(ctx.repo->url));
56 57
57 if (mkdir(path, S_IRWXU) && errno!=EEXIST) 58 if (mkdir(path, S_IRWXU) && errno!=EEXIST)
58 return 0; 59 return 0;
59 60
60 if (cgit_query_page) { 61 if (ctx.qry.page) {
61 path = fmt("%s/%s/%s", cgit_cache_root, 62 path = fmt("%s/%s/%s", ctx.cfg.cache_root,
62 cache_safe_filename(cgit_repo->url), 63 cache_safe_filename(ctx.repo->url),
63 cgit_query_page); 64 ctx.qry.page);
64 if (mkdir(path, S_IRWXU) && errno!=EEXIST) 65 if (mkdir(path, S_IRWXU) && errno!=EEXIST)
65 return 0; 66 return 0;
66 } 67 }
67 return 1; 68 return 1;
68} 69}
69 70
70int cache_refill_overdue(const char *lockfile) 71int cache_refill_overdue(const char *lockfile)
71{ 72{
72 struct stat st; 73 struct stat st;
73 74
74 if (stat(lockfile, &st)) 75 if (stat(lockfile, &st))
75 return 0; 76 return 0;
76 else 77 else
77 return (time(NULL) - st.st_mtime > cgit_cache_max_create_time); 78 return (time(NULL) - st.st_mtime > ctx.cfg.cache_max_create_time);
78} 79}
79 80
80int cache_lock(struct cacheitem *item) 81int cache_lock(struct cacheitem *item)
81{ 82{
82 int i = 0; 83 int i = 0;
83 char *lockfile = xstrdup(fmt("%s.lock", item->name)); 84 char *lockfile = xstrdup(fmt("%s.lock", item->name));
84 85
85 top: 86 top:
86 if (++i > cgit_max_lock_attempts) 87 if (++i > ctx.cfg.max_lock_attempts)
87 die("cache_lock: unable to lock %s: %s", 88 die("cache_lock: unable to lock %s: %s",
88 item->name, strerror(errno)); 89 item->name, strerror(errno));
89 90
90 item->fd = open(lockfile, O_WRONLY|O_CREAT|O_EXCL, S_IRUSR|S_IWUSR); 91 item->fd = open(lockfile, O_WRONLY|O_CREAT|O_EXCL, S_IRUSR|S_IWUSR);
91 92
92 if (item->fd == NOLOCK && errno == ENOENT && cache_create_dirs()) 93 if (item->fd == NOLOCK && errno == ENOENT && cache_create_dirs())
93 goto top; 94 goto top;
94 95
95 if (item->fd == NOLOCK && errno == EEXIST && 96 if (item->fd == NOLOCK && errno == EEXIST &&
96 cache_refill_overdue(lockfile) && !unlink(lockfile)) 97 cache_refill_overdue(lockfile) && !unlink(lockfile))
97 goto top; 98 goto top;
98 99