Makefile- acl.c
- acl.h
- acldata.c
- acldata.h
- auth.c
- auth.h
- config.c
- config.h
- configmanager.c
- configmanager.h
- error.c
- error.h
- event.c
- event.h
- event_bsd.c
- event_bsd.h
- event_linux.c
- event_linux.h
- event_solaris.c
- event_solaris.h
- func.c
- func.h
- http.c
- http.h
- httplistener.c
- httplistener.h
- httpparser.c
- httpparser.h
- httprequest.c
- httprequest.h
- keyfile_auth.c
- keyfile_auth.h
- ldap_auth.c
- ldap_auth.h
- ldap_resource.c
- ldap_resource.h
- log.c
- log.h
- main.c
- netsite.h
- objs.mk
- protocol.c
- protocol.h
- request.c
- request.h
- resourcepool.c
- resourcepool.h
- session.c
- session.h
- sessionhandler.c
- sessionhandler.h
- srvctrl.c
- srvctrl.h
- threadpools.c
- threadpools.h
- vfs.c
- vfs.h
- vserver.c
- vserver.h
- webserver.c
- webserver.h
- websocket.c
- websocket.h
- ws-fn.c
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2013 Olaf Wintermann. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <cx/hash_map.h>
#include <cx/linked_list.h>
#include "../util/atomic.h"
#include "event.h"
static CxMap *event_handler_map = NULL;
int numevhandlers = 0;
EVHandler *default_event_handler = NULL;
EVHandler *last_handler_c = NULL;
int create_event_handler(EventHandlerConfig *cfg) {
if(event_handler_map == NULL) {
event_handler_map = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
}
CxHashKey key = cx_hash_key_bytes((const unsigned char*)cfg->name.ptr, cfg->name.length);
// if the event handler already exists, we don't modify it
if(cxMapGet(event_handler_map, key)) {
/* TODO: log message */
/* TODO: set reload status */
log_ereport(LOG_DEBUG, "event handler %s already exists", cfg->name.ptr);
return 0;
}
// create new handler
EVHandler *e = evhandler_create(cfg);
if(e == NULL) {
log_ereport(LOG_FAILURE, "evhandler_create failed");
return 1;
}
if(cfg->isdefault) {
if(default_event_handler) {
/* there can be only one default event handler */
/* TODO: log warning */
}
default_event_handler = e;
}
int ret = cxMapPut(event_handler_map, key, e);
if(ret == 0) {
last_handler_c = e;
numevhandlers++;
}
return ret;
}
void shutdown_eventhandlers_wait(void) {
log_ereport(LOG_INFORM, "shutdown eventhandlers");
CxIterator i = cxMapIteratorValues(event_handler_map);
cx_foreach(EVHandler *, e, i) {
evhandler_shutdown(e);
}
i = cxMapIteratorValues(event_handler_map);
cx_foreach(EVHandler *, e, i) {
evhandler_wait_and_destroy(e);
}
cxMapDestroy(event_handler_map);
log_ereport(LOG_INFORM, "all eventhandlers closed");
}
void evhandler_shutdown(EVHandler *h) {
for(int i=0;i<h->numins;i++) {
ev_instance_shutdown(h->instances[i]);
}
}
void evhandler_close(EVHandler *h) {
for(int i=0;i<h->numins;i++) {
ev_instance_close(h->instances[i]);
}
}
void evhandler_wait_and_destroy(EVHandler *h) {
for(int i=0;i<h->numins;i++) {
ev_instance_wait(h->instances[i]);
}
free(h->instances);
free(h);
}
/*
* checks if there is at least one event handler and a default handler
* if necessary, check_event_handler_cfg() creates a default event handler
*/
int check_event_handler_cfg() {
if(numevhandlers > 0 ) {
if(default_event_handler) {
return 0;
} else {
default_event_handler = last_handler_c;
return 0;
}
}
EventHandlerConfig cfg;
cfg.name = cx_str("default");
cfg.nthreads = 1;
cfg.isdefault = 1;
return create_event_handler(&cfg);
}
EVHandler* get_default_event_handler() {
return default_event_handler;
}
EVHandler* get_event_handler(const char *name) {
return cxMapGet(event_handler_map, cx_hash_key_str(name));
}
EventHandler* ev_instance(EVHandler *ev) {
int nev = ev->numins;
if(nev == 1) {
return ev->instances[0];
}
int ins = ev->current & nev;
ws_atomic_inc32(&ev->current);
return ev->instances[ins];
}
int ev_free_event(EventHandler *h, Event *event) {
free(event);
return 0;
}
void ev_watchlist_add(EventHandler *h, EVWatchList *elm) {
watchlist_add(&h->watchlist_begin, &h->watchlist_end, elm);
}
void ev_watchlist_remove(EventHandler *h, EVWatchList *elm) {
watchlist_remove(&h->watchlist_begin, &h->watchlist_end, elm);
}
void ev_saf_return(EventHandler *h, Session *sn, Request *rq, int ret) {
h->fnreturn[h->numret++] = (EVReturn){ sn, rq, ret };
}
void watchlist_add(EVWatchList **begin, EVWatchList **end, EVWatchList *elm) {
cx_linked_list_add(
(void**)begin,
(void**)end,
offsetof(EVWatchList, prev),
offsetof(EVWatchList, next),
elm);
}
void watchlist_remove(EVWatchList **begin, EVWatchList **end, EVWatchList *elm) {
cx_linked_list_remove(
(void**)begin,
(void**)end,
offsetof(EVWatchList, prev),
offsetof(EVWatchList, next),
elm);
}
void watchlist_check(EventHandler *h, time_t t) {
if(t == 0) {
t = time(NULL);
}
log_ereport(LOG_DEBUG, "eventhandler: check watchlist");
EVWatchList *elm = h->watchlist_begin;
while(elm) {
EVWatchList *next = elm->next;
if(elm->expire < t) {
ev_watchlist_remove(h, elm);
if(elm->destroy) {
elm->destroy(h, elm);
}
}
elm = next;
}
}