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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2013, Digium, Inc.
*
* Mark Michelson <mmichelson@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
#include "asterisk.h"
#include <pjsip.h>
#include <pjlib.h>
#include "asterisk/res_pjsip.h"
#include "asterisk/sorcery.h"
#include "include/res_pjsip_private.h"
#include "asterisk/threadpool.h"
#define TIMER_T1_MIN 100
#define DEFAULT_TIMER_T1 500
#define DEFAULT_TIMER_B 32000
struct system_config {
SORCERY_OBJECT(details);
/*! Transaction Timer T1 value */
unsigned int timert1;
/*! Transaction Timer B value */
unsigned int timerb;
/*! Should we use short forms for headers? */
unsigned int compactheaders;
struct {
/*! Initial number of threads in the threadpool */
int initial_size;
/*! The amount by which the number of threads is incremented when necessary */
int auto_increment;
/*! Thread idle timeout in seconds */
int idle_timeout;
/*! Maxumum number of threads in the threadpool */
int max_size;
} threadpool;
};
static struct ast_threadpool_options sip_threadpool_options = {
.version = AST_THREADPOOL_OPTIONS_VERSION,
};
void sip_get_threadpool_options(struct ast_threadpool_options *threadpool_options)
{
*threadpool_options = sip_threadpool_options;
}
static struct ast_sorcery *system_sorcery;
static void *system_alloc(const char *name)
{
struct system_config *system = ast_sorcery_generic_alloc(sizeof(*system), NULL);
if (!system) {
return NULL;
}
return system;
}
static int system_apply(const struct ast_sorcery *system_sorcery, void *obj)
{
struct system_config *system = obj;
int min_timerb;
if (system->timert1 < TIMER_T1_MIN) {
ast_log(LOG_WARNING, "Timer T1 setting is too low. Setting to %d\n", TIMER_T1_MIN);
system->timert1 = TIMER_T1_MIN;
}
min_timerb = 64 * system->timert1;
if (system->timerb < min_timerb) {
ast_log(LOG_WARNING, "Timer B setting is too low. Setting to %d\n", min_timerb);
system->timerb = min_timerb;
}
pjsip_cfg()->tsx.t1 = system->timert1;
pjsip_cfg()->tsx.td = system->timerb;
if (system->compactheaders) {
extern pj_bool_t pjsip_use_compact_form;
pjsip_use_compact_form = PJ_TRUE;
}
sip_threadpool_options.initial_size = system->threadpool.initial_size;
sip_threadpool_options.auto_increment = system->threadpool.auto_increment;
sip_threadpool_options.idle_timeout = system->threadpool.idle_timeout;
sip_threadpool_options.max_size = system->threadpool.max_size;
return 0;
}
int ast_sip_initialize_system(void)
{
RAII_VAR(struct ao2_container *, system_configs, NULL, ao2_cleanup);
RAII_VAR(struct system_config *, system, NULL, ao2_cleanup);
system_sorcery = ast_sorcery_open();
if (!system_sorcery) {
ast_log(LOG_ERROR, "Failed to open SIP system sorcery\n");
return -1;
}
ast_sorcery_apply_default(system_sorcery, "system", "config", "pjsip.conf,criteria=type=system");
if (ast_sorcery_object_register_no_reload(system_sorcery, "system", system_alloc, NULL, system_apply)) {
ast_log(LOG_ERROR, "Failed to register with sorcery (is res_sorcery_config loaded?)\n");
ast_sorcery_unref(system_sorcery);
system_sorcery = NULL;
return -1;
}
ast_sorcery_object_field_register(system_sorcery, "system", "type", "", OPT_NOOP_T, 0, 0);
ast_sorcery_object_field_register(system_sorcery, "system", "timer_t1", __stringify(DEFAULT_TIMER_T1),
OPT_UINT_T, 0, FLDSET(struct system_config, timert1));
ast_sorcery_object_field_register(system_sorcery, "system", "timer_b", __stringify(DEFAULT_TIMER_B),
OPT_UINT_T, 0, FLDSET(struct system_config, timerb));
ast_sorcery_object_field_register(system_sorcery, "system", "compact_headers", "no",
OPT_BOOL_T, 1, FLDSET(struct system_config, compactheaders));
ast_sorcery_object_field_register(system_sorcery, "system", "threadpool_initial_size", "0",
OPT_UINT_T, 0, FLDSET(struct system_config, threadpool.initial_size));
ast_sorcery_object_field_register(system_sorcery, "system", "threadpool_auto_increment", "5",
OPT_UINT_T, 0, FLDSET(struct system_config, threadpool.auto_increment));
ast_sorcery_object_field_register(system_sorcery, "system", "threadpool_idle_timeout", "60",
OPT_UINT_T, 0, FLDSET(struct system_config, threadpool.idle_timeout));
ast_sorcery_object_field_register(system_sorcery, "system", "threadpool_max_size", "0",
OPT_UINT_T, 0, FLDSET(struct system_config, threadpool.max_size));
ast_sorcery_load(system_sorcery);
system_configs = ast_sorcery_retrieve_by_fields(system_sorcery, "system",
AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL);
if (ao2_container_count(system_configs)) {
return 0;
}
/* No config present, allocate one and apply defaults */
system = ast_sorcery_alloc(system_sorcery, "system", NULL);
if (!system) {
ast_log(LOG_ERROR, "Unable to allocate default system config.\n");
ast_sorcery_unref(system_sorcery);
return -1;
}
if (system_apply(system_sorcery, system)) {
ast_log(LOG_ERROR, "Failed to apply default system config.\n");
ast_sorcery_unref(system_sorcery);
return -1;
}
return 0;
}
void ast_sip_destroy_system(void)
{
ast_sorcery_unref(system_sorcery);
}
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