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/*
ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio.
This file is part of ChibiOS.
ChibiOS 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 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.c
* @brief Statistics module code.
*
* @addtogroup statistics
* @details Statistics services.
* @{
*/
#include "ch.h"
#if (CH_DBG_STATISTICS == TRUE) || defined(__DOXYGEN__)
/*===========================================================================*/
/* Module local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local types. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported functions. */
/*===========================================================================*/
/**
* @brief Initializes the statistics module.
*
* @init
*/
void _stats_init(void) {
ch.kernel_stats.n_irq = (ucnt_t)0;
ch.kernel_stats.n_ctxswc = (ucnt_t)0;
chTMObjectInit(&ch.kernel_stats.m_crit_thd);
chTMObjectInit(&ch.kernel_stats.m_crit_isr);
}
/**
* @brief Increases the IRQ counter.
*/
void _stats_increase_irq(void) {
port_lock_from_isr();
ch.kernel_stats.n_irq++;
port_unlock_from_isr();
}
/**
* @brief Updates context switch related statistics.
*
* @param[in] ntp the thread to be switched in
* @param[in] otp the thread to be switched out
*/
void _stats_ctxswc(thread_t *ntp, thread_t *otp) {
ch.kernel_stats.n_ctxswc++;
chTMChainMeasurementToX(&otp->stats, &ntp->stats);
}
/**
* @brief Starts the measurement of a thread critical zone.
*/
void _stats_start_measure_crit_thd(void) {
chTMStartMeasurementX(&ch.kernel_stats.m_crit_thd);
}
/**
* @brief Stops the measurement of a thread critical zone.
*/
void _stats_stop_measure_crit_thd(void) {
chTMStopMeasurementX(&ch.kernel_stats.m_crit_thd);
}
/**
* @brief Starts the measurement of an ISR critical zone.
*/
void _stats_start_measure_crit_isr(void) {
chTMStartMeasurementX(&ch.kernel_stats.m_crit_isr);
}
/**
* @brief Stops the measurement of an ISR critical zone.
*/
void _stats_stop_measure_crit_isr(void) {
chTMStopMeasurementX(&ch.kernel_stats.m_crit_isr);
}
#endif /* CH_DBG_STATISTICS == TRUE */
/** @} */
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