PHYSICAL_COUNTER_RESOURCE_LIST structure (ntddk.h)
The PHYSICAL_COUNTER_RESOURCE_LIST structure describes an array of PHYSICAL_COUNTER_RESOURCE_DESCRIPTOR structures.
Syntax
typedef struct _PHYSICAL_COUNTER_RESOURCE_LIST {
ULONG Count;
PHYSICAL_COUNTER_RESOURCE_DESCRIPTOR Descriptors[ANYSIZE_ARRAY];
} PHYSICAL_COUNTER_RESOURCE_LIST, *PPHYSICAL_COUNTER_RESOURCE_LIST;
Members
Count
The number of elements in the Descriptors array.
Descriptors[ANYSIZE_ARRAY]
The first element in an array of PHYSICAL_COUNTER_RESOURCE_DESCRIPTOR structures. If the array contains more than one element, the remaining elements immediately follow the first element.
Remarks
This structure describes a set of counter resources. Most processors have performance monitor units (PMUs) that contain a number of hardware counters to measure various aspects of system performance. A counter resource is a single hardware counter, a block of contiguous counters, or a counter overflow interrupt in a PMU.
The buffer allocated to contain a PHYSICAL_COUNTER_RESOURCE_LIST structure must be large enough to contain the structure plus any PHYSICAL_COUNTER_RESOURCE_DESCRIPTOR array elements that follow the structure.
The HalAllocateHardwareCounters routine's ResourceList parameter is a pointer to a PHYSICAL_COUNTER_RESOURCE_LIST structure. In Windows 7, this parameter is unused and must be set to NULL.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Supported in Windows 7 and later versions of Windows. |
| Header | ntddk.h (include Ntddk.h, Ntifs.h) |