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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file chstats.h
* @brief Statistics module macros and structures.
*
* @addtogroup statistics
* @{
*/
#ifndef _CHSTATS_H_
#define _CHSTATS_H_
#if CH_DBG_STATISTICS || defined(__DOXYGEN__)
/*===========================================================================*/
/* Module constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Module pre-compile time settings. */
/*===========================================================================*/
#if !CH_CFG_USE_TM
#error "CH_DBG_STATISTICS requires CH_CFG_USE_TM"
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Module data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a kernel statistics structure.
*/
typedef struct {
ucnt_t n_irq; /**< @brief Number of IRQs. */
ucnt_t n_ctxswc; /**< @brief Number of context switches. */
time_measurement_t m_crit_thd; /**< @brief Measurement of threads
critical zones duration. */
time_measurement_t m_crit_isr; /**< @brief Measurement of ISRs critical
zones duration. */
} kernel_stats_t;
/*===========================================================================*/
/* Module macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void _stats_init(void);
void _stats_increase_irq(void);
void _stats_ctxswc(thread_t *ntp, thread_t *otp);
void _stats_start_measure_crit_thd(void);
void _stats_stop_measure_crit_thd(void);
void _stats_start_measure_crit_isr(void);
void _stats_stop_measure_crit_isr(void);
#ifdef __cplusplus
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
#else /* !CH_DBG_STATISTICS */
/* Stub functions for when the statistics module is disabled. */
#define _stats_increase_irq()
#define _stats_ctxswc(old, new)
#define _stats_start_measure_crit_thd()
#define _stats_stop_measure_crit_thd()
#define _stats_start_measure_crit_isr()
#define _stats_stop_measure_crit_isr()
#endif /* !CH_DBG_STATISTICS */
#endif /* _CHSTATS_H_ */
/** @} */
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