Leaked source code of windows server 2003
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#ifndef _PSTAT_INCLUDED_
#define _PSTAT_INCLUDED_
//
//
// MAX_CESRS - maximum number of event selection registers
// This is a softwate limit. NoCESR is the runtime value.
// MAX_EVENTS - maximum number of active performance counter registers.
// This is a softwate limit. NoCounters is the runtime value.
//
// Note - We could define these values as processor independent and
// use a maximum denominator.
// Mostly to limit the size of data structures and arrays based
// on these values, we are defining
#if defined(_X86_)
#define MAX_EVENTS 2 // sw: max number of active perf. counters.
#define MAX_CESRS 2 // sw: max number of event selection registers.
#else // !_X86_
// include _IA64_ ...
#define MAX_EVENTS 4 // sw: max number of active perf. counters.
#define MAX_CESRS 4 // sw: max number of event selection registers.
#endif // !_X86_
#define MAX_THUNK_COUNTERS 64
#define MAX_PROCESSORS 32
#define PSTAT_READ_STATS CTL_CODE (FILE_DEVICE_UNKNOWN, 0, METHOD_NEITHER, FILE_ANY_ACCESS)
#define PSTAT_SET_CESR CTL_CODE (FILE_DEVICE_UNKNOWN, 1, METHOD_NEITHER, FILE_ANY_ACCESS)
#define PSTAT_HOOK_THUNK CTL_CODE (FILE_DEVICE_UNKNOWN, 2, METHOD_NEITHER, FILE_ANY_ACCESS)
#define PSTAT_REMOVE_HOOK CTL_CODE (FILE_DEVICE_UNKNOWN, 3, METHOD_NEITHER, FILE_ANY_ACCESS)
#define PSTAT_QUERY_EVENTS CTL_CODE (FILE_DEVICE_UNKNOWN, 4, METHOD_NEITHER, FILE_ANY_ACCESS)
#define PSTAT_QUERY_EVENTS_INFO CTL_CODE (FILE_DEVICE_UNKNOWN, 5, METHOD_NEITHER, FILE_ANY_ACCESS)
#define OFFSET(type, field) ((LONG_PTR)(&((type *)0)->field))
//
//
//
typedef struct {
ULONGLONG Counters[MAX_EVENTS];
ULONG EventId[MAX_EVENTS];
ULONGLONG TSC;
ULONG reserved;
// FIXFIX - Thierry - 01/2000:
// To virtualize these counters, we should use ULONGLONG types and not polymorphic types.
ULONG_PTR SpinLockAcquires;
ULONG_PTR SpinLockCollisions;
ULONG_PTR SpinLockSpins;
ULONG_PTR Irqls;
ULONGLONG ThunkCounters[MAX_THUNK_COUNTERS];
} PSTATS, *pPSTATS;
typedef struct {
ULONG EventId;
BOOLEAN Active;
BOOLEAN UserMode;
BOOLEAN KernelMode;
BOOLEAN EdgeDetect;
ULONG AppReserved;
ULONG reserved;
} SETEVENT, *PSETEVENT;
typedef struct {
PUCHAR SourceModule;
ULONG_PTR ImageBase;
PUCHAR TargetModule;
PUCHAR Function;
ULONG TracerId;
} HOOKTHUNK, *PHOOKTHUNK;
typedef struct {
ULONG EventId;
KPROFILE_SOURCE ProfileSource;
ULONG DescriptionOffset;
ULONG SuggestedIntervalBase;
UCHAR Buffer[];
} EVENTID, *PEVENTID;
typedef struct _EVENTS_INFO {
ULONG Events;
ULONG TokenMaxLength;
ULONG DescriptionMaxLength;
ULONG OfficialTokenMaxLength;
ULONG OfficialDescriptionMaxLength;
} EVENTS_INFO, *PEVENTS_INFO;
#if defined(ExAllocatePool)
#undef ExAllocatePool
#endif
#define ExAllocatePool(Type,Size) ExAllocatePoolWithTag((Type),(Size),'ttsp')
#endif /* _PSTAT_INCLUDED */