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2006-12-13Add display of tree content w/ui-tree.cLars Hjemli-0/+1
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11Don't truncate valid cachefilesLars Hjemli-0/+1
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>
2006-12-11Move global variables + callback functions into shared.cLars Hjemli-3/+4
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11Move functions for generic object output into ui-view.cLars Hjemli-0/+1
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11Move log-functions into ui-log.cLars Hjemli-3/+2
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11Move repo summary functions into ui-summary.cLars Hjemli-0/+3
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11Move functions for repolist output into ui-repolist.cLars Hjemli-0/+8
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11Move common output-functions into ui-shared.cLars Hjemli-1/+8
While at it, replace the cgit_[lib_]error constants with a proper function Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11Rename config.c to parsing.c + move cgit_parse_query from cgit.c to parsing.cLars Hjemli-0/+1
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-11Avoid infinite loops in caching layerLars Hjemli-0/+1
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>
2006-12-11Fix cache algorithm loopholeLars Hjemli-1/+2
This closes the door for unneccessary calls to cgit_fill_cache(). Noticed by Linus. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2006-12-10Add caching infrastructureLars Hjemli-2/+45
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>
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