74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
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/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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datahist.h
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Abstract:
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Header file for the HistGram Extensible Object Data definitions
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This file contains definitions to construct the dynamic data which
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is returned by the Configuration Registry. Data from various system API
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calls are placed into structures shown here.
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Author:
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Stephane Plante 2/2/95
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Revision History:
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--*/
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#ifndef _DATAHIST_H_
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#define _DATAHIST_H_
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//
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// The routines that load these structures that all fields are packed and
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// aligned on DWORD boundries. Alpha supprot may change this assumption so
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// the pack pragma is used here to insure the DWORD packing assumption
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// remains valid
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//
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#pragma pack (4)
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//
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// Extensible Object definitions
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//
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#define HISTGRAM_NUM_PERF_OBJECT_TYPES 1
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#define MEDIAN_OFFSET sizeof(DWORD)
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#define MEDIAN_READ_OFFSET MEDIAN_OFFSET + sizeof(LARGE_INTEGER)
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#define MEDIAN_WRITE_OFFSET MEDIAN_READ_OFFSET + sizeof(LARGE_INTEGER)
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#define REQUEST_OFFSET MEDIAN_WRITE_OFFSET + sizeof(LARGE_INTEGER)
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#define REQUEST_READ_OFFSET REQUEST_OFFSET + sizeof(LARGE_INTEGER)
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#define REQUEST_WRITE_OFFSET REQUEST_READ_OFFSET + sizeof(LARGE_INTEGER)
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#define SIZE_OF_HISTGRAM_DATA REQUEST_WRITE_OFFSET + sizeof(LARGE_INTEGER)
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//
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// This is the counter structure presently returned by Histgram for each
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// resource. Each resource is an Instance, named by its number.
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//
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typedef struct _HISTGRAM_DATA_DEFINITION {
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PERF_OBJECT_TYPE HistGramObjectType;
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PERF_COUNTER_DEFINITION Median;
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PERF_COUNTER_DEFINITION MedianRead;
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PERF_COUNTER_DEFINITION MedianWrite;
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PERF_COUNTER_DEFINITION Request;
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PERF_COUNTER_DEFINITION RequestRead;
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PERF_COUNTER_DEFINITION RequestWrite;
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} HISTGRAM_DATA_DEFINITION;
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//
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// Disable pack pragma
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//
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#pragma pack ()
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#endif // _DATAHIST_H_
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