Leaked source code of windows server 2003
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/*++
Copyright (c) 1997 Microsoft Corporation
Module Name :
iperfctr.hxx
Abstract:
This file defines macros to use for performance counters
Author:
Murali R. Krishnan ( MuraliK ) 28-Feb-1997
Environment:
User Mode - Win32
Project:
Internet Server DLL
Revision History:
Prefix:
IP* - Internet Information Server Performance *
--*/
# ifndef _IPERFCTR_HXX_
# define _IPERFCTR_HXX_
/************************************************************
* Include Headers
************************************************************/
/************************************************************
* Macro Definitions
************************************************************/
// define the IP_ENABLE_COUNTERS if you need perf counters
# ifdef IP_ENABLE_COUNTERS
// Defines a counter object - in future I need to build a fan-out counters
# define IP_DEFUN_COUNTER( name ) \
LONG name
# define IP_INCREMENT_COUNTER( name) \
InterlockedIncrement( (LPLONG ) &name)
# define IP_DECREMENT_COUNTER( name) \
InterlockedDecrement( (LPLONG ) &name)
# define IP_SET_COUNTER( name, val) \
InterlockedExchange( (LPLONG ) &name, val)
// return the value directly
# define IP_COUNTER_VALUE( name) \
(name)
# else // IP_ENABLE_COUNTERS
//
// If the counters are disabled i.e., IP_ENABLE_COUNTERS == FALSE
// => do not set these counters.
// All the macros default to no work to be done.
//
# define IP_DEFUN_COUNTER( name ) /* do nothing */
# define IP_INCREMENT_COUNTER( name) /* do nothing */
# define IP_DECREMENT_COUNTER( name) /* do nothing */
# define IP_SET_COUNTER( name, val) /* as usual do nothing! */
# define IP_COUNTER_VALUE( name) ( 0) // return value as 0 => invalid
# endif // IP_ENABLE_COUNTERS
# endif // _IPERFCTR_HXX_
/************************ End of File ***********************/