winperf.h

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#define PERF_RAW_FRACTION           \
            (PERF_SIZE_DWORD | PERF_TYPE_COUNTER | PERF_COUNTER_FRACTION |\
            PERF_DISPLAY_PERCENT)

#define PERF_LARGE_RAW_FRACTION           \
            (PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_FRACTION |\
            PERF_DISPLAY_PERCENT)

// Indicates the data is a base for the preceding counter which should
// not be time averaged on display (such as free space over total space.)
#define PERF_RAW_BASE               \
            (PERF_SIZE_DWORD | PERF_TYPE_COUNTER | PERF_COUNTER_BASE |\
            PERF_DISPLAY_NOSHOW |\
            0x00000003)  // for compatibility with pre-beta versions

#define PERF_LARGE_RAW_BASE               \
            (PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_BASE |\
            PERF_DISPLAY_NOSHOW )

// The data collected in this counter is actually the start time of the
// item being measured. For display, this data is subtracted from the
// sample time to yield the elapsed time as the difference between the two.
// In the definition below, the PerfTime field of the Object contains
// the sample time as indicated by the PERF_OBJECT_TIMER bit and the
// difference is scaled by the PerfFreq of the Object to convert the time
// units into seconds.
#define PERF_ELAPSED_TIME           \
            (PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_ELAPSED |\
            PERF_OBJECT_TIMER | PERF_DISPLAY_SECONDS)
//
//  The following counter type can be used with the preceding types to
//  define a range of values to be displayed in a histogram.
//

#define PERF_COUNTER_HISTOGRAM_TYPE   0x80000000
                                        // Counter begins or ends a histogram
//
//  This counter is used to display the difference from one sample
//  to the next. The counter value is a constantly increasing number
//  and the value displayed is the difference between the current
//  value and the previous value. Negative numbers are not allowed
//  which shouldn't be a problem as long as the counter value is
//  increasing or unchanged.
//
#define PERF_COUNTER_DELTA      \
            (PERF_SIZE_DWORD | PERF_TYPE_COUNTER | PERF_COUNTER_VALUE |\
            PERF_DELTA_COUNTER | PERF_DISPLAY_NO_SUFFIX)

#define PERF_COUNTER_LARGE_DELTA      \
            (PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_VALUE |\
            PERF_DELTA_COUNTER | PERF_DISPLAY_NO_SUFFIX)
//
//  The precision counters are timers that consist of two counter values:
//      1) the count of elapsed time of the event being monitored
//      2) the "clock" time in the same units
//
//  the precition timers are used where the standard system timers are not
//  precise enough for accurate readings. It's assumed that the service
//  providing the data is also providing a timestamp at the same time which
//  will eliminate any error that may occur since some small and variable
//  time elapses between the time the system timestamp is captured and when
//  the data is collected from the performance DLL. Only in extreme cases
//  has this been observed to be problematic.
//
//  when using this type of timer, the definition of the
//      PERF_PRECISION_TIMESTAMP counter must immediately follow the
//      definition of the PERF_PRECISION_*_TIMER in the Object header
//
// The timer used has the same frequency as the System Performance Timer
#define PERF_PRECISION_SYSTEM_TIMER \
        (PERF_SIZE_LARGE    | PERF_TYPE_COUNTER     | PERF_COUNTER_PRECISION    | \
         PERF_TIMER_TICK    | PERF_DELTA_COUNTER    | PERF_DISPLAY_PERCENT   )
//
// The timer used has the same frequency as the 100 NanoSecond Timer
#define PERF_PRECISION_100NS_TIMER  \
        (PERF_SIZE_LARGE    | PERF_TYPE_COUNTER     | PERF_COUNTER_PRECISION    | \
         PERF_TIMER_100NS   | PERF_DELTA_COUNTER    | PERF_DISPLAY_PERCENT   )
//
// The timer used is of the frequency specified in the Object header's
//  PerfFreq field (PerfTime is ignored)
#define PERF_PRECISION_OBJECT_TIMER \
        (PERF_SIZE_LARGE    | PERF_TYPE_COUNTER     | PERF_COUNTER_PRECISION    | \
         PERF_OBJECT_TIMER  | PERF_DELTA_COUNTER    | PERF_DISPLAY_PERCENT   )
//
// This is the timestamp to use in the computation of the timer specified
// in the previous description block
#define PERF_PRECISION_TIMESTAMP    PERF_LARGE_RAW_BASE
//
//  The following are used to determine the level of detail associated
//  with the counter.  The user will be setting the level of detail
//  that should be displayed at any given time.
//
//
#define PERF_DETAIL_NOVICE          100 // The uninformed can understand it
#define PERF_DETAIL_ADVANCED        200 // For the advanced user
#define PERF_DETAIL_EXPERT          300 // For the expert user
#define PERF_DETAIL_WIZARD          400 // For the system designer
//
//
//  There is one of the following for each of the
//  PERF_OBJECT_TYPE.NumCounters.  The Unicode names in this structure MUST
//  come from a message file.
//
//
typedef struct _PERF_COUNTER_DEFINITION {
    DWORD           ByteLength;         // Length in bytes of this structure
    DWORD           CounterNameTitleIndex;
                                        // Index of Counter name into
                                        // Title Database
    LPWSTR          CounterNameTitle;   // Initially NULL, for use by
                                        // analysis program to point to
                                        // retrieved title string
    DWORD           CounterHelpTitleIndex;
                                        // Index of Counter Help into
                                        // Title Database
    LPWSTR          CounterHelpTitle;   // Initially NULL, for use by
                                        // analysis program to point to
                                        // retrieved title string
    LONG            DefaultScale;       // Power of 10 by which to scale
                                        // chart line if vertical axis is 100
                                        // 0 ==> 1, 1 ==> 10, -1 ==>1/10, etc.
    DWORD           DetailLevel;        // Counter level of detail (for
                                        // controlling display complexity)
    DWORD           CounterType;        // Type of counter
    DWORD           CounterSize;        // Size of counter in bytes
    DWORD           CounterOffset;      // Offset from the start of the
                                        // PERF_COUNTER_BLOCK to the first
                                        // byte of this counter
} PERF_COUNTER_DEFINITION, *PPERF_COUNTER_DEFINITION;
//
//
//  If (PERF_DATA_BLOCK.NumInstances >= 0) then there will be
//  PERF_DATA_BLOCK.NumInstances of a (PERF_INSTANCE_DEFINITION
//  followed by a PERF_COUNTER_BLOCK followed by the counter data fields)
//  for each instance.
//
//  If (PERF_DATA_BLOCK.NumInstances < 0) then the counter definition
//  strucutre above will be followed by only a PERF_COUNTER_BLOCK and the
//  counter data for that COUNTER.
//

#define PERF_NO_UNIQUE_ID -1

typedef struct _PERF_INSTANCE_DEFINITION {
    DWORD           ByteLength;         // Length in bytes of this structure,
                                        // including the subsequent name
    DWORD           ParentObjectTitleIndex;
                                        // Title Index to name of "parent"
                                        // object (e.g., if thread, then
                                        // process is parent object type);
                                        // if logical drive, the physical
                                        // drive is parent object type
    DWORD           ParentObjectInstance;
                                        // Index to instance of parent object
                                        // type which is the parent of this
                                        // instance.
    LONG            UniqueID;           // A unique ID used instead of
                                        // matching the name to identify
                                        // this instance, -1 = none
    DWORD           NameOffset;         // Offset from beginning of
                                        // this struct to the Unicode name
                                        // of this instance
    DWORD           NameLength;         // Length in bytes of name; 0 = none
                                        // this length includes the characters
                                        // in the string plus the size of the
                                        // terminating NULL char. It does not
                                        // include any additional pad bytes to
                                        // correct structure alignment
} PERF_INSTANCE_DEFINITION, *PPERF_INSTANCE_DEFINITION;
//
//  If .ParentObjectName is 0, there
//  is no parent-child hierarchy for this object type.  Otherwise,
//   the .ParentObjectInstance is an index, starting at 0, into the
//  instances reported for the parent object type.  It is only
//  meaningful if .ParentObjectName is not 0.  The purpose of all this
//  is to permit reporting/summation of object instances like threads
//  within processes, and logical drives within physical drives.
//
//
//  The PERF_INSTANCE_DEFINITION will be followed by a PERF_COUNTER_BLOCK.
//

typedef struct _PERF_COUNTER_BLOCK {
    DWORD           ByteLength;         // Length in bytes of this structure,
                                        // including the following counters
} PERF_COUNTER_BLOCK, *PPERF_COUNTER_BLOCK;

//
//  The PERF_COUNTER_BLOCK is followed by PERF_OBJECT_TYPE.NumCounters
//  number of counters.
//

//
// Support for New Extensible API starting with NT 5.0
//
#define     PERF_QUERY_OBJECTS      ((LONG)0x80000000)
#define     PERF_QUERY_GLOBAL       ((LONG)0x80000001)
#define     PERF_QUERY_COSTLY       ((LONG)0x80000002)

//
//  function typedefs for extensible counter function prototypes
//
typedef DWORD (APIENTRY PM_OPEN_PROC) (LPWSTR);
typedef DWORD (APIENTRY PM_COLLECT_PROC) (LPWSTR, LPVOID *, LPDWORD, LPDWORD);
typedef DWORD (APIENTRY PM_CLOSE_PROC) (void);
typedef DWORD (APIENTRY PM_QUERY_PROC) (LPDWORD, LPVOID *, LPDWORD, LPDWORD);

#define     MAX_PERF_OBJECTS_IN_QUERY_FUNCTION      (8L)

#include <poppack.h>

#pragma option pop /*P_O_Pop*/
#endif // _WINPERF_