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common.h
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// Phil Budne
// 2020-04-11
//
// prometheus common O/S defines
// (pretty much) just the standard values defined at:
// https://prometheus.io/docs/instrumenting/writing_clientlibs/#process-metrics
/*-
* SPDX-License-Identifier: MIT
*
* Copyright © 2020, Philip L. Budne
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef NO_THREADS
#include <pthread.h>
#ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
#define MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
#else
#define MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
#endif
#define DECLARE_LOCK(NAME) \
static pthread_mutex_t NAME = MUTEX_INIT;
#define LOCK(NAME) pthread_mutex_lock(&NAME)
#define UNLOCK(NAME) pthread_mutex_unlock(&NAME)
#else
#define DECLARE_LOCK(NAME)
#define LOCK(NAME)
#define UNLOCK(NAME)
#endif
int prom_process_common_init(void);