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* Don't truncate valid cachefilesLars Hjemli2006-12-11-4/+16
| | | | | | | | | | | | | | 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>
* Move global variables + callback functions into shared.cLars Hjemli2006-12-11-82/+86
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Move functions for generic object output into ui-view.cLars Hjemli2006-12-11-34/+43
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Move log-functions into ui-log.cLars Hjemli2006-12-11-111/+121
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Move repo summary functions into ui-summary.cLars Hjemli2006-12-11-47/+59
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Move functions for repolist output into ui-repolist.cLars Hjemli2006-12-11-70/+90
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Move common output-functions into ui-shared.cLars Hjemli2006-12-11-82/+99
| | | | | | While at it, replace the cgit_[lib_]error constants with a proper function Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Rename config.c to parsing.c + move cgit_parse_query from cgit.c to parsing.cLars Hjemli2006-12-11-28/+29
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Avoid infinite loops in caching layerLars Hjemli2006-12-11-14/+31
| | | | | | | | | | | 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>
* Let 'make install' clear all cachefilesLars Hjemli2006-12-11-0/+2
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Fix cache algorithm loopholeLars Hjemli2006-12-11-11/+16
| | | | | | | | This closes the door for unneccessary calls to cgit_fill_cache(). Noticed by Linus. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Add version identifier in generated filesLars Hjemli2006-12-10-9/+14
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Add license file and copyright noticesLars Hjemli2006-12-10-0/+372
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Add caching infrastructureLars Hjemli2006-12-10-28/+353
| | | | | | | | | | | | | | | | | | | | | | 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>
* Add .gitignoreLars Hjemli2006-12-09-0/+3
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Replace useless make rules with generic $(OBJECTS) dependencyLars Hjemli2006-12-09-5/+1
| | | | Signed-off-by: Lars Hjemli <hjemli@gmail.com>
* Import cgit prototype from git treeLars Hjemli2006-12-09-0/+1090
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>
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