63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
#include "precomp.h"
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#include "timeslicer.h"
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#define TIMER_SLICE 0x7816
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TimeSlicer::TimeSlicer(int percent_cpu_usage/* =50 */, int slice_duration/* =-1 */) {
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max_cpu_usage = MIN((float)percent_cpu_usage, 99.0f) / 100.0f;
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duration = slice_duration;
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started = 0;
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slicecount = 0;
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firstslicetime = -1;
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}
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TimeSlicer::~TimeSlicer() {
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}
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void TimeSlicer::startSlicer() {
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if (started) return;
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started = 1;
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timerclient_setTimer(TIMER_SLICE, duration);
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onSlicerStart();
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timerclient_timerCallback(TIMER_SLICE);
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}
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void TimeSlicer::stopSlicer() {
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if (!started) return;
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started = 0;
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timerclient_killTimer(TIMER_SLICE);
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onSlicerStop();
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firstslicetime = -1;
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}
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void TimeSlicer::onSlicerStop() {
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}
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void TimeSlicer::onSlicerStart() {
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}
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int TimeSlicer::isSlicerStarted() {
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return started;
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}
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void TimeSlicer::timerclient_timerCallback(int id) {
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if (id == TIMER_SLICE) {
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DWORD now = Std::getTickCount();
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runSlice(now, now + (int)((float)duration * max_cpu_usage));
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} else
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TimerClient::timerclient_timerCallback(id);
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}
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void TimeSlicer::runSlice(DWORD start, DWORD stopwhen) {
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DWORD now = Std::getTickCount();
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slicecount = 0;
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onBeginSliceBatch();
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if (slicecount == 0 && firstslicetime != -1) stopwhen = now + firstslicetime;
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while (Std::getTickCount() < stopwhen) {
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onSlice();
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slicecount++;
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if (!started) break; // got aborted
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}
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onEndSliceBatch();
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}
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