Example of how to use the Stasis message bus
In order to get people familiar with the Stasis message bus, it would be useful to have something of a tutorial. Since I'm not clever enough to think of some cool integration we could do with Twitter, I settled for something that might actually be useful. This patch adds a res_statsd.so module, which implements a basic statsd[1] client. Statsd is a very simple statistics gathering server, which can publish its results to a backend graphing engine, like Graphite[2]. There are several different Statsd server implementations[3], so you can pick what works best for your environment. The actual example of how to use the Stasis message bus is in res_chan_stats.so. This module demonstrates how to use subscriptions and the message router by monitoring messages and posting channels stats to the statsd server. A wiki page walking through res_chan_stats.so is forthcoming. [1]: https://github.com/etsy/statsd/ [2]: http://graphite.readthedocs.org/en/latest/ [3]: http://joemiller.me/2011/09/21/list-of-statsd-server-implementations/ Review: https://reviewboard.asterisk.org/r/2460/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@386624 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
David M. Lee
parent
eddf4a1ae6
commit
946eb5ede0
|
|
@ -0,0 +1,8 @@
|
|||
[general]
|
||||
;enabled = yes ; When set to yes, statsd support is enabled
|
||||
;server = 127.0.0.1 ; server[:port] of statsd server to use.
|
||||
; If not specified, the port is 8125
|
||||
;prefix = ; Prefix to prepend to all metrics
|
||||
;add_newline = no ; Append a newline to every event. This is
|
||||
; useful if you want to run a fake statsd
|
||||
; server using netcat (nc -lu 8125)
|
||||
|
|
@ -0,0 +1,85 @@
|
|||
/*
|
||||
* Asterisk -- An open source telephony toolkit.
|
||||
*
|
||||
* Copyright (C) 2013, Digium, Inc.
|
||||
*
|
||||
* David M. Lee, II <dlee@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.
|
||||
*/
|
||||
|
||||
#ifndef _ASTERISK_STATSD_H
|
||||
#define _ASTERISK_STATSD_H
|
||||
|
||||
/*!
|
||||
* \brief Support for publishing to a statsd server.
|
||||
*
|
||||
* \author David M. Lee, II <dlee@digium.com>
|
||||
* \since 12
|
||||
*/
|
||||
|
||||
#include "asterisk/optional_api.h"
|
||||
|
||||
/*! An instantaneous measurement of a value. */
|
||||
#define AST_STATSD_GUAGE "g"
|
||||
/*! A change in a value. */
|
||||
#define AST_STATSD_COUNTER "c"
|
||||
/*! Measure of milliseconds. */
|
||||
#define AST_STATSD_TIMER "ms"
|
||||
/*! Distribution of values over time. */
|
||||
#define AST_STATSD_HISTOGRAM "h"
|
||||
/*! Events over time. Sorta like increment-only counters. */
|
||||
#define AST_STATSD_METER "m"
|
||||
|
||||
/*!
|
||||
* \brief Send a stat to the configured statsd server.
|
||||
*
|
||||
* The is the most flexible function for sending a message to the statsd server,
|
||||
* but also the least easy to use. See ast_statsd_log() or
|
||||
* ast_statsd_log_sample() for a slightly more convenient interface.
|
||||
*
|
||||
* \param metric_name String (UTF-8) name of the metric.
|
||||
* \param type_str Type of metric to send.
|
||||
* \param value Value to send.
|
||||
* \param sample_rate Percentage of samples to send.
|
||||
* \since 12
|
||||
*/
|
||||
AST_OPTIONAL_API(void, ast_statsd_log_full, (const char *metric_name,
|
||||
const char *metric_type, intmax_t value, double sample_rate), {});
|
||||
|
||||
/*!
|
||||
* \brief Send a stat to the configured statsd server.
|
||||
* \param metric_name String (UTF-8) name of the metric.
|
||||
* \param metric_type Type of metric to send.
|
||||
* \param value Value to send.
|
||||
* \since 12
|
||||
*/
|
||||
AST_OPTIONAL_API(void, ast_statsd_log, (const char *metric_name,
|
||||
const char *metric_type, intmax_t value), {});
|
||||
|
||||
/*!
|
||||
* \brief Send a random sampling of a stat to the configured statsd server.
|
||||
*
|
||||
* The type of sampled metrics is always \ref AST_STATSD_COUNTER. The given
|
||||
* \a sample_rate should be a percentage between 0.0 and 1.0. If it's <= 0.0,
|
||||
* then no samples will be sent. If it's >= 1.0, then all samples will be sent.
|
||||
*
|
||||
* \param metric_name String (UTF-8) name of the metric.
|
||||
* \param value Value to send.
|
||||
* \param sample_rate Percentage of samples to send.
|
||||
* \since 12
|
||||
*/
|
||||
AST_OPTIONAL_API(void, ast_statsd_log_sample, (const char *metric_name,
|
||||
intmax_t value, double sample_rate), {});
|
||||
|
||||
|
||||
#endif /* _ASTERISK_STATSD_H */
|
||||
|
||||
|
|
@ -458,6 +458,11 @@ char *ast_process_quotes_and_slashes(char *start, char find, char replace_with);
|
|||
|
||||
long int ast_random(void);
|
||||
|
||||
/*!
|
||||
* \brief Returns a random number between 0.0 and 1.0, inclusive.
|
||||
* \since 12
|
||||
*/
|
||||
#define ast_random_double() (((double)ast_random()) / RAND_MAX)
|
||||
|
||||
/*!
|
||||
* \brief free() wrapper
|
||||
|
|
|
|||
|
|
@ -0,0 +1,188 @@
|
|||
/*
|
||||
* Asterisk -- An open source telephony toolkit.
|
||||
*
|
||||
* Copyright (C) 2013, Digium, Inc.
|
||||
*
|
||||
* David M. Lee, II <dlee@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.
|
||||
*/
|
||||
|
||||
/*!
|
||||
* \brief Statsd channel stats. Exmaple of how to subscribe to Stasis events.
|
||||
*
|
||||
* This module subscribes to the channel caching topic and issues statsd stats
|
||||
* based on the received messages.
|
||||
*
|
||||
* \author David M. Lee, II <dlee@digium.com>
|
||||
* \since 12
|
||||
*/
|
||||
|
||||
/*** MODULEINFO
|
||||
<depend>res_statsd</depend>
|
||||
<defaultenabled>no</defaultenabled>
|
||||
<support_level>extended</support_level>
|
||||
***/
|
||||
|
||||
#include "asterisk.h"
|
||||
|
||||
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
|
||||
|
||||
#include "asterisk/module.h"
|
||||
#include "asterisk/stasis_channels.h"
|
||||
#include "asterisk/stasis_message_router.h"
|
||||
#include "asterisk/statsd.h"
|
||||
#include "asterisk/time.h"
|
||||
|
||||
/*! Regular Stasis subscription */
|
||||
static struct stasis_subscription *sub;
|
||||
/*! Stasis message router */
|
||||
static struct stasis_message_router *router;
|
||||
|
||||
/*!
|
||||
* \brief Subscription callback for all channel messages.
|
||||
* \param data Data pointer given when creating the subscription.
|
||||
* \param sub This subscription.
|
||||
* \param topic The topic the message was posted to. This is not necessarily the
|
||||
* topic you subscribed to, since messages may be forwarded between
|
||||
* topics.
|
||||
* \param message The message itself.
|
||||
*/
|
||||
static void statsmaker(void *data, struct stasis_subscription *sub,
|
||||
struct stasis_topic *topic, struct stasis_message *message)
|
||||
{
|
||||
RAII_VAR(struct ast_str *, metric, NULL, ast_free);
|
||||
|
||||
if (stasis_subscription_final_message(sub, message)) {
|
||||
/* Normally, data points to an object that must be cleaned up.
|
||||
* The final message is an unsubscribe notification that's
|
||||
* guaranteed to be the last message this subscription receives.
|
||||
* This would be a safe place to kick off any needed cleanup.
|
||||
*/
|
||||
return;
|
||||
}
|
||||
|
||||
/* For no good reason, count message types */
|
||||
metric = ast_str_create(80);
|
||||
if (metric) {
|
||||
ast_str_set(&metric, 0, "stasis.message.%s",
|
||||
stasis_message_type_name(stasis_message_type(message)));
|
||||
ast_statsd_log(ast_str_buffer(metric), AST_STATSD_METER, 1);
|
||||
}
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Router callback for \ref stasis_cache_update messages.
|
||||
* \param data Data pointer given when added to router.
|
||||
* \param sub This subscription.
|
||||
* \param topic The topic the message was posted to. This is not necessarily the
|
||||
* topic you subscribed to, since messages may be forwarded between
|
||||
* topics.
|
||||
* \param message The message itself.
|
||||
*/
|
||||
static void updates(void *data, struct stasis_subscription *sub,
|
||||
struct stasis_topic *topic, struct stasis_message *message)
|
||||
{
|
||||
/* Since this came from a message router, we know the type of the
|
||||
* message. We can cast the data without checking its type.
|
||||
*/
|
||||
struct stasis_cache_update *update = stasis_message_data(message);
|
||||
|
||||
/* We're only interested in channel snapshots, so check the type
|
||||
* of the underlying message.
|
||||
*/
|
||||
if (ast_channel_snapshot_type() != update->type) {
|
||||
return;
|
||||
}
|
||||
|
||||
/* There are three types of cache updates.
|
||||
* !old && new -> Initial cache entry
|
||||
* old && new -> Updated cache entry
|
||||
* old && !new -> Cache entry removed.
|
||||
*/
|
||||
|
||||
if (!update->old_snapshot && update->new_snapshot) {
|
||||
/* Initial cache entry; count a channel creation */
|
||||
ast_statsd_log("channels.count", AST_STATSD_COUNTER, 1);
|
||||
} else if (update->old_snapshot && !update->new_snapshot) {
|
||||
/* Cache entry removed. Compute the age of the channel and post
|
||||
* that, as well as decrementing the channel count.
|
||||
*/
|
||||
struct ast_channel_snapshot *last;
|
||||
int64_t age;
|
||||
|
||||
last = stasis_message_data(update->old_snapshot);
|
||||
age = ast_tvdiff_ms(*stasis_message_timestamp(message),
|
||||
last->creationtime);
|
||||
ast_statsd_log("channels.calltime", AST_STATSD_TIMER, age);
|
||||
|
||||
/* And decrement the channel count */
|
||||
ast_statsd_log("channels.count", AST_STATSD_COUNTER, -1);
|
||||
}
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Router callback for any message that doesn't otherwise have a route.
|
||||
* \param data Data pointer given when added to router.
|
||||
* \param sub This subscription.
|
||||
* \param topic The topic the message was posted to. This is not necessarily the
|
||||
* topic you subscribed to, since messages may be forwarded between
|
||||
* topics.
|
||||
* \param message The message itself.
|
||||
*/
|
||||
static void default_route(void *data, struct stasis_subscription *sub,
|
||||
struct stasis_topic *topic, struct stasis_message *message)
|
||||
{
|
||||
if (stasis_subscription_final_message(sub, message)) {
|
||||
/* Much like with the regular subscription, you may need to
|
||||
* perform some cleanup when done with a message router. You
|
||||
* can look for the final message in the default route.
|
||||
*/
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
static int load_module(void)
|
||||
{
|
||||
/* You can create a message router to route messages by type */
|
||||
router = stasis_message_router_create(
|
||||
stasis_caching_get_topic(ast_channel_topic_all_cached()));
|
||||
if (!router) {
|
||||
return AST_MODULE_LOAD_FAILURE;
|
||||
}
|
||||
stasis_message_router_add(router, stasis_cache_update_type(),
|
||||
updates, NULL);
|
||||
stasis_message_router_set_default(router, default_route, NULL);
|
||||
|
||||
/* Or a subscription to receive all of the messages from a topic */
|
||||
sub = stasis_subscribe(ast_channel_topic_all(), statsmaker, NULL);
|
||||
if (!sub) {
|
||||
return AST_MODULE_LOAD_FAILURE;
|
||||
}
|
||||
return AST_MODULE_LOAD_SUCCESS;
|
||||
}
|
||||
|
||||
static int unload_module(void)
|
||||
{
|
||||
stasis_unsubscribe(sub);
|
||||
sub = NULL;
|
||||
stasis_message_router_unsubscribe(router);
|
||||
router = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
AST_MODULE_INFO(ASTERISK_GPL_KEY,
|
||||
AST_MODFLAG_DEFAULT,
|
||||
"Example of how to use Stasis",
|
||||
.load = load_module,
|
||||
.unload = unload_module,
|
||||
.nonoptreq = "res_statsd"
|
||||
);
|
||||
|
|
@ -0,0 +1,326 @@
|
|||
/*
|
||||
* Asterisk -- An open source telephony toolkit.
|
||||
*
|
||||
* Copyright (C) 2013, Digium, Inc.
|
||||
*
|
||||
* David M. Lee, II <dlee@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.
|
||||
*/
|
||||
|
||||
/*!
|
||||
* \brief Support for publishing to a statsd server.
|
||||
*
|
||||
* \author David M. Lee, II <dlee@digium.com>
|
||||
* \since 12
|
||||
*/
|
||||
|
||||
/*** MODULEINFO
|
||||
<support_level>extended</support_level>
|
||||
***/
|
||||
|
||||
/*** DOCUMENTATION
|
||||
<configInfo name="res_statsd" language="en_US">
|
||||
<synopsis>Statsd client.</synopsis>
|
||||
<configFile name="statsd.conf">
|
||||
<configObject name="global">
|
||||
<synopsis>Global configuration settings</synopsis>
|
||||
<configOption name="enabled">
|
||||
<synopsis>Enable/disable the stasis-http module</synopsis>
|
||||
</configOption>
|
||||
<configOption name="server">
|
||||
<synopsis>Address of the statsd server</synopsis>
|
||||
</configOption>
|
||||
<configOption name="prefix">
|
||||
<synopsis>Prefix to prepend to every metric</synopsis>
|
||||
</configOption>
|
||||
<configOption name="add_newline">
|
||||
<synopsis>Append a newline to every event. This is useful if you want to fake out a server using netcat (nc -lu 8125)</synopsis>
|
||||
</configOption>
|
||||
</configObject>
|
||||
</configFile>
|
||||
</configInfo>
|
||||
***/
|
||||
|
||||
#include "asterisk.h"
|
||||
|
||||
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
|
||||
|
||||
#include "asterisk/config_options.h"
|
||||
#include "asterisk/module.h"
|
||||
#include "asterisk/netsock2.h"
|
||||
|
||||
#define AST_API_MODULE
|
||||
#include "asterisk/statsd.h"
|
||||
|
||||
#define DEFAULT_STATSD_PORT 8125
|
||||
|
||||
#define MAX_PREFIX 40
|
||||
|
||||
/*! Socket for sending statd messages */
|
||||
static int socket_fd = -1;
|
||||
|
||||
/*! \brief Global configuration options for statsd client. */
|
||||
struct conf_global_options {
|
||||
/*! Enabled by default, disabled if false. */
|
||||
int enabled;
|
||||
/*! Disabled by default, appends newlines to all messages when enabled. */
|
||||
int add_newline;
|
||||
/*! Statsd server address[:port]. */
|
||||
struct ast_sockaddr statsd_server;
|
||||
/*! Prefix to put on every stat. */
|
||||
char prefix[MAX_PREFIX + 1];
|
||||
};
|
||||
|
||||
/*! \brief All configuration options for statsd client. */
|
||||
struct conf {
|
||||
/*! The general section configuration options. */
|
||||
struct conf_global_options *global;
|
||||
};
|
||||
|
||||
/*! \brief Locking container for safe configuration access. */
|
||||
static AO2_GLOBAL_OBJ_STATIC(confs);
|
||||
|
||||
static void conf_server(const struct conf *cfg, struct ast_sockaddr *addr)
|
||||
{
|
||||
*addr = cfg->global->statsd_server;
|
||||
if (ast_sockaddr_port(addr) == 0) {
|
||||
ast_sockaddr_set_port(addr, DEFAULT_STATSD_PORT);
|
||||
}
|
||||
}
|
||||
|
||||
void AST_OPTIONAL_API_NAME(ast_statsd_log_full)(const char *metric_name,
|
||||
const char *metric_type, intmax_t value, double sample_rate)
|
||||
{
|
||||
RAII_VAR(struct conf *, cfg, NULL, ao2_cleanup);
|
||||
RAII_VAR(struct ast_str *, msg, NULL, ast_free);
|
||||
size_t len;
|
||||
struct ast_sockaddr statsd_server;
|
||||
|
||||
if (socket_fd == -1) {
|
||||
return;
|
||||
}
|
||||
|
||||
cfg = ao2_global_obj_ref(confs);
|
||||
conf_server(cfg, &statsd_server);
|
||||
|
||||
/* Rates <= 0.0 never get logged.
|
||||
* Rates >= 1.0 always get logged.
|
||||
* All others leave it to chance.
|
||||
*/
|
||||
if (sample_rate <= 0.0 ||
|
||||
(sample_rate < 1.0 && sample_rate < ast_random_double())) {
|
||||
return;
|
||||
}
|
||||
|
||||
cfg = ao2_global_obj_ref(confs);
|
||||
|
||||
msg = ast_str_create(40);
|
||||
if (!msg) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (!ast_strlen_zero(cfg->global->prefix)) {
|
||||
ast_str_append(&msg, 0, "%s.", cfg->global->prefix);
|
||||
}
|
||||
|
||||
ast_str_append(&msg, 0, "%s:%jd|%s", metric_name, value, metric_type);
|
||||
|
||||
if (sample_rate < 1.0) {
|
||||
ast_str_append(&msg, 0, "|@%.2f", sample_rate);
|
||||
}
|
||||
|
||||
if (cfg->global->add_newline) {
|
||||
ast_str_append(&msg, 0, "\n");
|
||||
}
|
||||
|
||||
len = ast_str_strlen(msg);
|
||||
|
||||
ast_debug(6, "send: %s\n", ast_str_buffer(msg));
|
||||
ast_sendto(socket_fd, ast_str_buffer(msg), len, 0, &statsd_server);
|
||||
}
|
||||
|
||||
void AST_OPTIONAL_API_NAME(ast_statsd_log)(const char *metric_name,
|
||||
const char *metric_type, intmax_t value)
|
||||
{
|
||||
ast_statsd_log_full(metric_name, metric_type, value, 1.0);
|
||||
}
|
||||
|
||||
void AST_OPTIONAL_API_NAME(ast_statsd_log_sample)(const char *metric_name,
|
||||
intmax_t value, double sample_rate)
|
||||
{
|
||||
ast_statsd_log_full(metric_name, AST_STATSD_COUNTER, value,
|
||||
sample_rate);
|
||||
}
|
||||
|
||||
/*! \brief Mapping of the stasis http conf struct's globals to the
|
||||
* general context in the config file. */
|
||||
static struct aco_type global_option = {
|
||||
.type = ACO_GLOBAL,
|
||||
.name = "global",
|
||||
.item_offset = offsetof(struct conf, global),
|
||||
.category = "^general$",
|
||||
.category_match = ACO_WHITELIST
|
||||
};
|
||||
|
||||
static struct aco_type *global_options[] = ACO_TYPES(&global_option);
|
||||
|
||||
/*! \brief Disposes of the stasis http conf object */
|
||||
static void conf_destructor(void *obj)
|
||||
{
|
||||
struct conf *cfg = obj;
|
||||
ao2_cleanup(cfg->global);
|
||||
}
|
||||
|
||||
/*! \brief Creates the statis http conf object. */
|
||||
static void *conf_alloc(void)
|
||||
{
|
||||
struct conf *cfg;
|
||||
|
||||
if (!(cfg = ao2_alloc(sizeof(*cfg), conf_destructor))) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (!(cfg->global = ao2_alloc(sizeof(*cfg->global), NULL))) {
|
||||
ao2_ref(cfg, -1);
|
||||
return NULL;
|
||||
}
|
||||
return cfg;
|
||||
}
|
||||
|
||||
/*! \brief The conf file that's processed for the module. */
|
||||
static struct aco_file conf_file = {
|
||||
/*! The config file name. */
|
||||
.filename = "statsd.conf",
|
||||
/*! The mapping object types to be processed. */
|
||||
.types = ACO_TYPES(&global_option),
|
||||
};
|
||||
|
||||
CONFIG_INFO_STANDARD(cfg_info, confs, conf_alloc,
|
||||
.files = ACO_FILES(&conf_file));
|
||||
|
||||
/*! \brief Helper function to check if module is enabled. */
|
||||
static char is_enabled(void)
|
||||
{
|
||||
RAII_VAR(struct conf *, cfg, ao2_global_obj_ref(confs), ao2_cleanup);
|
||||
return cfg->global->enabled;
|
||||
}
|
||||
|
||||
static int statsd_init(void)
|
||||
{
|
||||
RAII_VAR(struct conf *, cfg, ao2_global_obj_ref(confs), ao2_cleanup);
|
||||
char *server;
|
||||
struct ast_sockaddr statsd_server;
|
||||
|
||||
ast_assert(is_enabled());
|
||||
|
||||
ast_debug(3, "Configuring statsd client.\n");
|
||||
|
||||
if (socket_fd == -1) {
|
||||
ast_debug(3, "Creating statsd socket.\n");
|
||||
socket_fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
|
||||
if (socket_fd == -1) {
|
||||
perror("Error creating statsd socket");
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
conf_server(cfg, &statsd_server);
|
||||
server = ast_sockaddr_stringify_fmt(&statsd_server,
|
||||
AST_SOCKADDR_STR_DEFAULT);
|
||||
ast_debug(3, " statsd server = %s.\n", server);
|
||||
ast_debug(3, " add newline = %s\n", AST_YESNO(cfg->global->add_newline));
|
||||
ast_debug(3, " prefix = %s\n", cfg->global->prefix);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void statsd_shutdown(void)
|
||||
{
|
||||
ast_debug(3, "Shutting down statsd client.\n");
|
||||
if (socket_fd != -1) {
|
||||
close(socket_fd);
|
||||
socket_fd = -1;
|
||||
}
|
||||
}
|
||||
|
||||
static int load_module(void)
|
||||
{
|
||||
if (aco_info_init(&cfg_info)) {
|
||||
aco_info_destroy(&cfg_info);
|
||||
return AST_MODULE_LOAD_DECLINE;
|
||||
}
|
||||
|
||||
aco_option_register(&cfg_info, "enabled", ACO_EXACT, global_options,
|
||||
"no", OPT_BOOL_T, 1,
|
||||
FLDSET(struct conf_global_options, enabled));
|
||||
|
||||
aco_option_register(&cfg_info, "add_newline", ACO_EXACT, global_options,
|
||||
"no", OPT_BOOL_T, 1,
|
||||
FLDSET(struct conf_global_options, add_newline));
|
||||
|
||||
aco_option_register(&cfg_info, "server", ACO_EXACT, global_options,
|
||||
"127.0.0.1", OPT_SOCKADDR_T, 0,
|
||||
FLDSET(struct conf_global_options, statsd_server));
|
||||
|
||||
aco_option_register(&cfg_info, "prefix", ACO_EXACT, global_options,
|
||||
"", OPT_CHAR_ARRAY_T, 0,
|
||||
CHARFLDSET(struct conf_global_options, prefix));
|
||||
|
||||
if (aco_process_config(&cfg_info, 0)) {
|
||||
aco_info_destroy(&cfg_info);
|
||||
return AST_MODULE_LOAD_DECLINE;
|
||||
}
|
||||
|
||||
if (!is_enabled()) {
|
||||
return AST_MODULE_LOAD_SUCCESS;
|
||||
}
|
||||
|
||||
if (statsd_init() != 0) {
|
||||
return AST_MODULE_LOAD_FAILURE;
|
||||
}
|
||||
|
||||
return AST_MODULE_LOAD_SUCCESS;
|
||||
}
|
||||
|
||||
static int unload_module(void)
|
||||
{
|
||||
statsd_shutdown();
|
||||
aco_info_destroy(&cfg_info);
|
||||
ao2_global_obj_release(confs);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int reload_module(void)
|
||||
{
|
||||
if (aco_process_config(&cfg_info, 1)) {
|
||||
return AST_MODULE_LOAD_DECLINE;
|
||||
}
|
||||
|
||||
if (is_enabled()) {
|
||||
return statsd_init();
|
||||
} else {
|
||||
statsd_shutdown();
|
||||
return AST_MODULE_LOAD_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
/* The priority of this module is set to be as low as possible, since it could
|
||||
* be used by any other sort of module.
|
||||
*/
|
||||
AST_MODULE_INFO(ASTERISK_GPL_KEY,
|
||||
AST_MODFLAG_GLOBAL_SYMBOLS | AST_MODFLAG_LOAD_ORDER,
|
||||
"Statsd client support",
|
||||
.load = load_module,
|
||||
.unload = unload_module,
|
||||
.reload = reload_module,
|
||||
.load_pri = 0,
|
||||
);
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
{
|
||||
global:
|
||||
LINKER_SYMBOL_PREFIX*ast_statsd_log;
|
||||
LINKER_SYMBOL_PREFIX*ast_statsd_log_full;
|
||||
LINKER_SYMBOL_PREFIX*ast_statsd_log_sample;
|
||||
local:
|
||||
*;
|
||||
};
|
||||
Loading…
Reference in New Issue