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https://gitee.com/mirrors_PX4/PX4-Autopilot.git
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Moved last libs, drivers and headers, cleaned up IO build
This commit is contained in:
Lorenz Meier
@@ -0,0 +1,317 @@
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/****************************************************************************
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*
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* Copyright (C) 2012 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file perf_counter.c
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*
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* @brief Performance measuring tools.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/queue.h>
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#include <drivers/drv_hrt.h>
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#include "perf_counter.h"
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/**
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* Header common to all counters.
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*/
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struct perf_ctr_header {
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sq_entry_t link; /**< list linkage */
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enum perf_counter_type type; /**< counter type */
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const char *name; /**< counter name */
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};
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/**
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* PC_EVENT counter.
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*/
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struct perf_ctr_count {
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struct perf_ctr_header hdr;
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uint64_t event_count;
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};
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/**
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* PC_ELAPSED counter.
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*/
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struct perf_ctr_elapsed {
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struct perf_ctr_header hdr;
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uint64_t event_count;
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uint64_t time_start;
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uint64_t time_total;
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uint64_t time_least;
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uint64_t time_most;
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};
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/**
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* PC_INTERVAL counter.
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*/
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struct perf_ctr_interval {
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struct perf_ctr_header hdr;
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uint64_t event_count;
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uint64_t time_event;
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uint64_t time_first;
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uint64_t time_last;
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uint64_t time_least;
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uint64_t time_most;
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};
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/**
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* List of all known counters.
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*/
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static sq_queue_t perf_counters;
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perf_counter_t
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perf_alloc(enum perf_counter_type type, const char *name)
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{
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perf_counter_t ctr = NULL;
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switch (type) {
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case PC_COUNT:
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ctr = (perf_counter_t)calloc(sizeof(struct perf_ctr_count), 1);
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break;
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case PC_ELAPSED:
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ctr = (perf_counter_t)calloc(sizeof(struct perf_ctr_elapsed), 1);
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break;
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case PC_INTERVAL:
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ctr = (perf_counter_t)calloc(sizeof(struct perf_ctr_interval), 1);
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break;
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default:
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break;
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}
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if (ctr != NULL) {
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ctr->type = type;
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ctr->name = name;
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sq_addfirst(&ctr->link, &perf_counters);
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}
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return ctr;
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}
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void
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perf_free(perf_counter_t handle)
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{
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if (handle == NULL)
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return;
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sq_rem(&handle->link, &perf_counters);
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free(handle);
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}
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void
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perf_count(perf_counter_t handle)
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{
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if (handle == NULL)
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return;
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switch (handle->type) {
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case PC_COUNT:
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((struct perf_ctr_count *)handle)->event_count++;
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break;
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case PC_INTERVAL: {
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struct perf_ctr_interval *pci = (struct perf_ctr_interval *)handle;
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hrt_abstime now = hrt_absolute_time();
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switch (pci->event_count) {
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case 0:
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pci->time_first = now;
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break;
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case 1:
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pci->time_least = now - pci->time_last;
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pci->time_most = now - pci->time_last;
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break;
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default: {
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hrt_abstime interval = now - pci->time_last;
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if (interval < pci->time_least)
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pci->time_least = interval;
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if (interval > pci->time_most)
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pci->time_most = interval;
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break;
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}
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}
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pci->time_last = now;
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pci->event_count++;
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break;
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}
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default:
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break;
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}
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}
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void
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perf_begin(perf_counter_t handle)
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{
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if (handle == NULL)
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return;
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switch (handle->type) {
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case PC_ELAPSED:
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((struct perf_ctr_elapsed *)handle)->time_start = hrt_absolute_time();
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break;
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default:
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break;
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}
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}
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void
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perf_end(perf_counter_t handle)
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{
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if (handle == NULL)
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return;
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switch (handle->type) {
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case PC_ELAPSED: {
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struct perf_ctr_elapsed *pce = (struct perf_ctr_elapsed *)handle;
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hrt_abstime elapsed = hrt_absolute_time() - pce->time_start;
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pce->event_count++;
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pce->time_total += elapsed;
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if ((pce->time_least > elapsed) || (pce->time_least == 0))
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pce->time_least = elapsed;
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if (pce->time_most < elapsed)
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pce->time_most = elapsed;
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}
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default:
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break;
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}
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}
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void
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perf_reset(perf_counter_t handle)
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{
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if (handle == NULL)
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return;
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switch (handle->type) {
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case PC_COUNT:
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((struct perf_ctr_count *)handle)->event_count = 0;
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break;
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case PC_ELAPSED: {
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struct perf_ctr_elapsed *pce = (struct perf_ctr_elapsed *)handle;
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pce->event_count = 0;
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pce->time_start = 0;
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pce->time_total = 0;
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pce->time_least = 0;
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pce->time_most = 0;
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break;
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}
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case PC_INTERVAL: {
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struct perf_ctr_interval *pci = (struct perf_ctr_interval *)handle;
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pci->event_count = 0;
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pci->time_event = 0;
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pci->time_first = 0;
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pci->time_last = 0;
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pci->time_least = 0;
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pci->time_most = 0;
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break;
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}
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}
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}
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void
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perf_print_counter(perf_counter_t handle)
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{
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if (handle == NULL)
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return;
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switch (handle->type) {
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case PC_COUNT:
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printf("%s: %llu events\n",
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handle->name,
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((struct perf_ctr_count *)handle)->event_count);
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break;
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case PC_ELAPSED: {
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struct perf_ctr_elapsed *pce = (struct perf_ctr_elapsed *)handle;
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printf("%s: %llu events, %lluus elapsed, min %lluus max %lluus\n",
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handle->name,
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pce->event_count,
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pce->time_total,
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pce->time_least,
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pce->time_most);
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break;
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}
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case PC_INTERVAL: {
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struct perf_ctr_interval *pci = (struct perf_ctr_interval *)handle;
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printf("%s: %llu events, %llu avg, min %lluus max %lluus\n",
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handle->name,
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pci->event_count,
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(pci->time_last - pci->time_first) / pci->event_count,
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pci->time_least,
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pci->time_most);
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break;
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}
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default:
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break;
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}
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}
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void
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perf_print_all(void)
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{
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perf_counter_t handle = (perf_counter_t)sq_peek(&perf_counters);
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while (handle != NULL) {
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perf_print_counter(handle);
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handle = (perf_counter_t)sq_next(&handle->link);
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}
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}
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void
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perf_reset_all(void)
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{
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perf_counter_t handle = (perf_counter_t)sq_peek(&perf_counters);
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while (handle != NULL) {
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perf_reset(handle);
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handle = (perf_counter_t)sq_next(&handle->link);
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}
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}
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