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17 Commits

Author SHA1 Message Date
Joris Vink 0dda6f996f Add a form of synchronization between what worker will be accepting 
new connections and which ones will not be notified for it.

Fixes the thundering herd problem, and nicely spreads out load between
all the workers equally. A configuration option (workers_max_connections)
is available to tweak how many connections a worker will have before
giving up the accept lock.

Two ways are added to this commit for access locking:
- Locking via semaphores.
- Locking via GCC's builtin atomic methods.

The default is running with semaphores disabled (OpenBSD cannot do
sem_init() with pshared set to 1, which is required).

If you want to use semaphores add KORE_USE_SEMAPHORES to CFLAGS,
and -lpthread to LDFLAGS in the Makefile.

Other fixes:
- BSD: add a timeout to kevent().
- Merge kore_worker_wait together, linux knows waitpid() as well.
- Send the correct SIGQUIT signal to workers instead of SIGINT.
- Fix kore_time_ms().
- Log fatal worker messages in syslog.
- Refactor code even more.
- Do not free our own kore_worker structure.
 2013-06-26 16:37:22 +02:00
Joris Vink 3e5c17b8a3 refactor code quite a bit. 2013-06-26 11:18:32 +02:00
Joris Vink 6026a6d4ee add SNI support, and change domain configuration a bit. 2013-06-24 11:32:45 +02:00
Joris Vink a1b400c400 Add access logging to Kore. 2013-06-24 09:36:40 +02:00
Joris Vink a74fffe40c Introduce certfile and certkey in the configuration to specify where the certificate file and keys are located on a system. 
Free unused vars in the main process after starting.
 2013-06-05 09:47:08 +02:00
Joris Vink 9ef669ff6f write main process pid to /var/run/kore.pid (changable in configuration) 2013-06-04 16:53:30 +02:00
Joris Vink e7db5ee6b1 rename kore_log to kore_debug, and allow one to turn it off. 2013-06-04 16:30:53 +02:00
Joris Vink cf6a6550f0 allow onload to be given in the config file. 
onload specifies what function in your module to call when the module has been loaded or reloaded.
 2013-05-30 21:26:39 +02:00
Joris Vink 9243f409cc move to a worker based threading approach where we delegate http requests to workers in a round robin basis (later this should be swapped to find the laziest worker and assign the request to that instead). 2013-05-30 19:36:42 +02:00
Joris Vink 8478d8df54 add chroot and runas directives so we can chroot and drop privilegs properly 2013-05-04 22:18:27 +02:00
Joris Vink 088d877715 switch dynamic handlers to regex based patterns, much easier. 2013-05-29 14:29:46 +02:00
Joris Vink 2290d09d3b Add dynamic handles, which can be used to partially match a URI and still call a cb handler. This is especially usefull when considering the handlers as a ruleset: 
static /	serve_index
static /foo	serve_foo
dynamic /	serve_other

/ will be matched to serve_index, while /foo will be matched to serve_foo and /bar will be matched to serve_other for example.
 2013-05-29 13:33:32 +02:00
Joris Vink f61bbe8ff4 move buf stuff back into kore.h, wont need it separately 2013-05-02 15:14:00 +02:00
Joris Vink 84428f7133 move buf stuff into its own header, so we can use it in spdy.h 2013-05-02 14:55:57 +02:00
Joris Vink 807764614b from now on configuration files must specify a domain for the handlers that follow. This allows for easy subdomain configuration. 
example:

domain joris.local
static / serve_index

domain .joris.local
static / serve_another_index
 2013-05-02 13:30:13 +02:00
Joris Vink a228cdba0e introduce kore_split_string() to properly split strings apart. 
introduce kore_date_to_time() to conver http-date formatted strings to time_t.
 2013-05-01 20:10:45 +02:00
Joris Vink 39afa6c25b add missing config.c 2013-05-01 17:17:16 +02:00