Grafik Komit

18 Melakukan

Penulis SHA1 Pesan Tanggal
Lars Hjemli
58d04f6523 cache_lock: do xstrdup/free on lockfile
Since fmt() uses 8 alternating static buffers, and cache_lock might call
cache_create_dirs() multiple times, which in turn might call fmt() twice,
after four iterations lockfile would be overwritten by a cachedirectory
path.

In worst case, this could cause the cachedirectory to be unlinked and replaced
by a cachefile.

Fix: use xstrdup() on the result from fmt() before assigning to lockfile, and
call free(lockfile) before exit.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-12 10:16:41 +01:00
Lars Hjemli
fbaf1171b4 Don't truncate valid cachefiles
An embarrassing thinko in cgit_check_cache() would truncate valid cachefiles
in the following situation:
  1) process A notices a missing/expired cachefile
  2) process B gets scheduled, locks, fills and unlocks the cachefile
  3) process A gets scheduled, locks the cachefile, notices that the cachefile
     now exist/is not expired anymore, and continues to overwrite it with an
     empty lockfile.

Thanks to Linus for noticing (again).

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 22:53:50 +01:00
Lars Hjemli
44923f8953 Move global variables + callback functions into shared.c
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 17:25:51 +01:00
Lars Hjemli
df63119302 Move functions for generic object output into ui-view.c
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 17:12:26 +01:00
Lars Hjemli
d14c5f6d3a Move log-functions into ui-log.c
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 17:04:19 +01:00
Lars Hjemli
1418034e64 Move repo summary functions into ui-summary.c
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 16:55:33 +01:00
Lars Hjemli
74620f12e4 Move functions for repolist output into ui-repolist.c
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 16:49:18 +01:00
Lars Hjemli
5a106eb09b Move common output-functions into ui-shared.c
While at it, replace the cgit_[lib_]error constants with a proper function

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 16:38:30 +01:00
Lars Hjemli
51ada4fda2 Rename config.c to parsing.c + move cgit_parse_query from cgit.c to parsing.c
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 16:11:40 +01:00
Lars Hjemli
318d106300 Avoid infinite loops in caching layer
Add a global variable, cgit_max_lock_attemps, to avoid the possibility of
infinite loops when failing to acquire a lockfile. This could happen on
broken setups or under crazy server load.

Incidentally, this also fixes a lurking bug in cache_lock() where an
uninitialized returnvalue was used.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 12:10:12 +01:00
Lars Hjemli
a581ed8d6c Let 'make install' clear all cachefiles
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 11:23:05 +01:00
Lars Hjemli
f5069d88df Fix cache algorithm loophole
This closes the door for unneccessary calls to cgit_fill_cache().

Noticed by Linus.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11 09:57:58 +01:00
Lars Hjemli
76827d8679 Add version identifier in generated files
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-10 23:54:45 +01:00
Lars Hjemli
7640d90b73 Add license file and copyright notices
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-10 22:41:14 +01:00
Lars Hjemli
25105d7eca 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>
2006-12-10 22:31:36 +01:00
Lars Hjemli
856c026e22 Add .gitignore
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-09 22:21:43 +01:00
Lars Hjemli
c76a52be5b Replace useless make rules with generic $(OBJECTS) dependency
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-09 15:29:05 +01:00
Lars Hjemli
0d169ada2b Import cgit prototype from git tree
This enables basic cgit functionality, using libgit.a and xdiff/lib.a from
git + a custom "git.h" + openssl for sha1 routines.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-09 15:18:17 +01:00