82 lines
1.3 KiB
C++
82 lines
1.3 KiB
C++
//
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// Copyright (c) 2014 Wind River Systems, Inc.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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#ifndef FM_TIME_H_
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#define FM_TIME_H_
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#include <time.h>
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#include <sys/time.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdint.h>
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#include "fmAPI.h"
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#include "fmLog.h"
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// time in microseconds
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FMTimeT fmGetCurrentTime();
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// time in microseconds
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FMTimeT fmGetCurrentHrt();
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/**
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* Create a passive timer in microseconds
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*/
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class CFmTimer {
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FMTimeT m_start;
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FMTimeT m_offset;
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static bool isExpired(FMTimeT start, FMTimeT offset,
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FMTimeT now) {
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return (now-start) >= offset;
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}
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public:
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static FMTimeT gethrtime();
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unsigned long long getStartingTime() const { return m_start; }
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void reset() {
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m_start = gethrtime();
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}
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void setExpired() {
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m_start = gethrtime() - m_offset;
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}
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void setExpiry(FMTimeT timeout) {
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m_offset = timeout;
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reset();
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}
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CFmTimer(FMTimeT timeout=0) {
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setExpiry(timeout);
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}
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bool isExpired() const {
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return isExpired(m_start,m_offset,gethrtime());
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}
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FMTimeT remaining() const {
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FMTimeT now = gethrtime();
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if (isExpired(m_start,m_offset,now)) {
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return 0;
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}
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return m_offset - (now-m_start);
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}
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FMTimeT sec_to_micro(unsigned int t) {
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return ((FMTimeT)(t)) * 10000000;
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}
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};
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#endif
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