/*++ BUILD Version: 0001    // Increment this if a change has global effects

Copyright (c) 1992 Microsoft Corporation

Module Name:

    perfutil.h  

Abstract:

    This file supports routines used to parse and
    create Performance Monitor Data Structures.
    It actually supports Performance Object types with
    multiple instances

Author:

    Russ Blake  7/30/92

Revision History:


--*/
#ifndef _PERFUTIL_H_
#define _PERFUTIL_H_

// enable this define to log process heap data to the event log
#ifdef PROBE_HEAP_USAGE
#undef PROBE_HEAP_USAGE
#endif
//
//  Utility macro.  This is used to reserve a DWORD multiple of
//  bytes for Unicode strings embedded in the definitional data,
//  viz., object instance names.
//
#define DWORD_MULTIPLE(x) (((x+sizeof(DWORD)-1)/sizeof(DWORD))*sizeof(DWORD))

//    (assumes dword is 4 bytes long and pointer is a dword in size)
#define ALIGN_ON_DWORD(x) ((VOID *)( ((DWORD) x & 0x00000003) ? ( ((DWORD) x & 0xFFFFFFFC) + 4 ) : ( (DWORD) x ) ))

extern WCHAR  GLOBAL_STRING[];  // Global command (get all local ctrs)
extern WCHAR  FOREIGN_STRING[]; // get data from foreign computers
extern WCHAR  COSTLY_STRING[];      
extern WCHAR  NULL_STRING[];

#define QUERY_GLOBAL    1
#define QUERY_ITEMS     2
#define QUERY_FOREIGN   3
#define QUERY_COSTLY    4

//
// The definition of the only routine of perfutil.c, It builds part of a 
// performance data instance (PERF_INSTANCE_DEFINITION) as described in 
// winperf.h
//

HANDLE	MonOpenEventLog ();
VOID	MonCloseEventLog ();
DWORD	GetQueryType (IN LPWSTR);
BOOL	IsNumberInUnicodeList (DWORD, LPWSTR);

typedef struct _LOCAL_HEAP_INFO_BLOCK {
    DWORD   AllocatedEntries;
    DWORD   AllocatedBytes;
    DWORD   FreeEntries;
    DWORD   FreeBytes;
} LOCAL_HEAP_INFO, *PLOCAL_HEAP_INFO;


//
//  Memory Probe macro
//
#ifdef PROBE_HEAP_USAGE

#define HEAP_PROBE()    { \
    DWORD   dwHeapStatus[5]; \
    NTSTATUS CallStatus; \
    dwHeapStatus[4] = __LINE__; \
    if (!(CallStatus = memprobe (dwHeapStatus, 16L, NULL))) { \
        REPORT_INFORMATION_DATA (TCP_HEAP_STATUS, LOG_DEBUG,    \
            &dwHeapStatus, sizeof(dwHeapStatus));  \
    } else {  \
        REPORT_ERROR_DATA (TCP_HEAP_STATUS_ERROR, LOG_DEBUG, \
            &CallStatus, sizeof (DWORD)); \
    } \
}

#else

#define HEAP_PROBE()    ;

#endif

#endif //_PERFUTIL_H_

