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86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2013, Digium, Inc.
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*
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* David M. Lee, II <dlee@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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#ifndef _ASTERISK_STATSD_H
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#define _ASTERISK_STATSD_H
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/*!
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* \brief Support for publishing to a statsd server.
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*
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* \author David M. Lee, II <dlee@digium.com>
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* \since 12
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*/
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#include "asterisk/optional_api.h"
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/*! An instantaneous measurement of a value. */
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#define AST_STATSD_GUAGE "g"
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/*! A change in a value. */
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#define AST_STATSD_COUNTER "c"
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/*! Measure of milliseconds. */
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#define AST_STATSD_TIMER "ms"
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/*! Distribution of values over time. */
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#define AST_STATSD_HISTOGRAM "h"
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/*! Events over time. Sorta like increment-only counters. */
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#define AST_STATSD_METER "m"
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/*!
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* \brief Send a stat to the configured statsd server.
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*
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* The is the most flexible function for sending a message to the statsd server,
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* but also the least easy to use. See ast_statsd_log() or
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* ast_statsd_log_sample() for a slightly more convenient interface.
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*
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* \param metric_name String (UTF-8) name of the metric.
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* \param type_str Type of metric to send.
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* \param value Value to send.
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* \param sample_rate Percentage of samples to send.
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* \since 12
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*/
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AST_OPTIONAL_API(void, ast_statsd_log_full, (const char *metric_name,
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const char *metric_type, intmax_t value, double sample_rate), {});
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/*!
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* \brief Send a stat to the configured statsd server.
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* \param metric_name String (UTF-8) name of the metric.
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* \param metric_type Type of metric to send.
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* \param value Value to send.
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* \since 12
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*/
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AST_OPTIONAL_API(void, ast_statsd_log, (const char *metric_name,
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const char *metric_type, intmax_t value), {});
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/*!
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* \brief Send a random sampling of a stat to the configured statsd server.
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*
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* The type of sampled metrics is always \ref AST_STATSD_COUNTER. The given
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* \a sample_rate should be a percentage between 0.0 and 1.0. If it's <= 0.0,
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* then no samples will be sent. If it's >= 1.0, then all samples will be sent.
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*
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* \param metric_name String (UTF-8) name of the metric.
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* \param value Value to send.
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* \param sample_rate Percentage of samples to send.
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* \since 12
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*/
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AST_OPTIONAL_API(void, ast_statsd_log_sample, (const char *metric_name,
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intmax_t value, double sample_rate), {});
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#endif /* _ASTERISK_STATSD_H */
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