px4-firmware/apps/systemlib/cpuload.h

64 lines
2.5 KiB
C

/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#pragma once
#ifdef CONFIG_SCHED_INSTRUMENTATION
__BEGIN_DECLS
#include <nuttx/sched.h>
struct system_load_taskinfo_s {
uint64_t total_runtime; ///< Runtime since start (start_time - total_runtime)/(start_time - current_time) = load
uint64_t curr_start_time; ///< Start time of the current scheduling slot
uint64_t start_time; ///< FIRST start time of task
FAR struct _TCB *tcb; ///<
bool valid; ///< Task is currently active / valid
};
struct system_load_s {
uint64_t start_time; ///< Global start time of measurements
struct system_load_taskinfo_s tasks[CONFIG_MAX_TASKS];
uint8_t initialized;
int total_count;
int running_count;
int sleeping_count;
};
__EXPORT extern struct system_load_s system_load;
__EXPORT void cpuload_initialize_once(void);
#endif