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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Monkey HTTP Server
* ==================
* Copyright 2001-2017 Eduardo Silva <eduardo@monkey.io>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include <mk_core/mk_pthread.h>
#include <mk_core/mk_event.h>
#include <monkey/mk_scheduler.h>
#include <monkey/mk_plugin.h>
#include <monkey/mk_clock.h>
#include <monkey/mk_thread.h>
#include <monkey/mk_mimetype.h>
#include <monkey/mk_http_thread.h>
pthread_once_t mk_server_tls_setup_once = PTHREAD_ONCE_INIT;
static void mk_set_up_tls_keys()
{
MK_INIT_INITIALIZE_TLS_UNIVERSAL();
MK_INIT_INITIALIZE_TLS();
mk_http_thread_initialize_tls();
}
void mk_server_info(struct mk_server *server)
{
struct mk_list *head;
struct mk_plugin *p;
struct mk_config_listener *l;
#ifdef _WIN32
printf(MK_BANNER_ENTRY "Process ID is %ld\n", (long)GetCurrentProcessId());
#else
printf(MK_BANNER_ENTRY "Process ID is %ld\n", (long) getpid());
#endif
mk_list_foreach(head, &server->listeners) {
l = mk_list_entry(head, struct mk_config_listener, _head);
printf(MK_BANNER_ENTRY "Server listening on %s:%s\n",
l->address, l->port);
}
printf(MK_BANNER_ENTRY
"%i threads, may handle up to %i client connections\n",
server->workers, server->server_capacity);
/* List loaded plugins */
printf(MK_BANNER_ENTRY "Loaded Plugins: ");
mk_list_foreach(head, &server->plugins) {
p = mk_list_entry(head, struct mk_plugin, _head);
printf("%s ", p->shortname);
}
printf("\n");
#ifdef __linux__
char tmp[64];
if (mk_kernel_features_print(tmp, sizeof(tmp), server) > 0) {
printf(MK_BANNER_ENTRY "Linux Features: %s\n", tmp);
}
#endif
fflush(stdout);
}
/* Initialize Monkey Server */
struct mk_server *mk_server_create()
{
int ret;
int kern_version;
int kern_features;
struct mk_server *server;
server = mk_mem_alloc_z(sizeof(struct mk_server));
if (!server) {
return NULL;
}
/* I'll try to leave both initializations here because
* it should be possible to run in windows using the accept
* backend in which case it doesn't make sense to tie the net stack
* initialization to libevent.
*/
mk_net_init();
mk_event_init();
/* Library mode: event loop */
server->lib_mode = MK_TRUE;
server->lib_evl = mk_event_loop_create(8);
if (!server->lib_evl) {
mk_mem_free(server);
return NULL;
}
/* Library mode: channel manager */
memset(&server->lib_ch_event, 0, sizeof(struct mk_event));
ret = mk_event_channel_create(server->lib_evl,
&server->lib_ch_manager[0],
&server->lib_ch_manager[1],
&server->lib_ch_event);
if (ret != 0) {
mk_event_loop_destroy(server->lib_evl);
mk_mem_free(server);
return NULL;
}
/* Library mode: start event loop */
server->lib_evl_start = mk_event_loop_create(1);
if (!server->lib_evl_start) {
mk_event_loop_destroy(server->lib_evl);
mk_mem_free(server);
return NULL;
}
memset(&server->lib_ch_start_event, 0, sizeof(struct mk_event));
ret = mk_event_channel_create(server->lib_evl_start,
&server->lib_ch_start[0],
&server->lib_ch_start[1],
&server->lib_ch_start_event);
if (ret != 0) {
mk_event_loop_destroy(server->lib_evl);
mk_event_loop_destroy(server->lib_evl_start);
mk_mem_free(server);
return NULL;
}
/* Initialize linked list heads */
mk_list_init(&server->plugins);
mk_list_init(&server->sched_worker_callbacks);
mk_list_init(&server->stage10_handler);
mk_list_init(&server->stage20_handler);
mk_list_init(&server->stage30_handler);
mk_list_init(&server->stage40_handler);
mk_list_init(&server->stage50_handler);
server->scheduler_mode = -1;
mk_core_init();
/* Init thread keys */
pthread_once(&mk_server_tls_setup_once, mk_set_up_tls_keys);
/* Init Kernel version data */
kern_version = mk_kernel_version();
kern_features = mk_kernel_features(kern_version);
server->kernel_version = kern_version;
server->kernel_features = kern_features;
#ifdef MK_HAVE_TRACE
MK_TRACE("Monkey TRACE is enabled");
//pthread_mutex_init(&mutex_trace, (pthread_mutexattr_t *) NULL);
#endif
#ifdef LINUX_TRACE
mk_info("Linux Trace enabled");
#endif
mk_config_set_init_values(server);
mk_mimetype_init(server);
pthread_mutex_init(&server->vhost_fdt_mutex, NULL);
return server;
}
int mk_server_setup(struct mk_server *server)
{
int ret;
pthread_t tid;
/* Core and Scheduler setup */
mk_config_start_configure(server);
mk_config_signature(server);
mk_sched_init(server);
/* Clock init that must happen before starting threads */
mk_clock_sequential_init(server);
/* Load plugins */
mk_plugin_api_init(server);
mk_plugin_load_all(server);
/* Workers: logger and clock */
ret = mk_utils_worker_spawn((void *) mk_clock_worker_init, server, &tid);
if (ret != 0) {
return -1;
}
/* Configuration sanity check */
mk_config_sanity_check(server);
/* Invoke Plugin PRCTX hooks */
mk_plugin_core_process(server);
/* Launch monkey http workers */
mk_server_launch_workers(server);
return 0;
}
void mk_exit_all(struct mk_server *server)
{
uint64_t val;
/* Distribute worker signals to stop working */
val = MK_SCHED_SIGNAL_FREE_ALL;
mk_sched_broadcast_signal(server, val);
/* Wait for all workers to finish */
mk_sched_workers_join(server);
/* Continue exiting */
mk_plugin_exit_all(server);
mk_clock_exit(server);
mk_sched_exit(server);
mk_config_free_all(server);
}
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