2019-01-05 20:21:43 +08:00
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#include "stdafx.h"
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#include "CpuUseage.h"
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//ϵͳ<CFB5><CDB3><EFBFBD>ܼ<EFBFBD><DCBC><EFBFBD><EFBFBD><EFBFBD>
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CCpuUsage::CCpuUsage()
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{
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m_hQuery = NULL;
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m_pCounterStruct = NULL;
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}
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CCpuUsage::~CCpuUsage()
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{
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PdhCloseQuery(m_hQuery); //<2F>رռ<D8B1><D5BC><EFBFBD><EFBFBD><EFBFBD>
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2019-01-22 20:44:23 +08:00
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if (m_pCounterStruct)
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delete m_pCounterStruct;
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2019-01-05 20:21:43 +08:00
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}
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BOOL CCpuUsage::Init()
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{
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if (ERROR_SUCCESS != PdhOpenQuery(NULL, 1, &m_hQuery)) //<2F><EFBFBD><F2BFAABC><EFBFBD><EFBFBD><EFBFBD>
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return FALSE;
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m_pCounterStruct = (PPDHCOUNTERSTRUCT) new PDHCOUNTERSTRUCT;
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//ͳ<>Ƹ<EFBFBD><C6B8><EFBFBD>Ȥ<EFBFBD><C8A4>ϵͳ<CFB5><CDB3>Ϣʱ<CFA2><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><C8BD><EFBFBD>Ӧ<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>
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2019-01-11 21:40:11 +08:00
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PDH_STATUS pdh_status = PdhAddCounter(m_hQuery, (LPCSTR)szCounterName,
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(DWORD) m_pCounterStruct, &(m_pCounterStruct->hCounter));
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2019-01-05 20:21:43 +08:00
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if (ERROR_SUCCESS != pdh_status)
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{
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return FALSE;
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}
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return TRUE;
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}
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int CCpuUsage::GetUsage()
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{
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PDH_FMT_COUNTERVALUE pdhFormattedValue;
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PdhCollectQueryData(m_hQuery);
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//<2F>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ݻ<EFBFBD><DDBB>õ<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
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if (ERROR_SUCCESS != PdhGetFormattedCounterValue(m_pCounterStruct->hCounter,
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PDH_FMT_LONG,
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NULL,
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&pdhFormattedValue ))
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{
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return 0;
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}
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return pdhFormattedValue.longValue;
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}
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