84 lines
3.4 KiB
C
84 lines
3.4 KiB
C
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// --monshare.h-----------------------------------------------------------------
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//
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// Header file containing the definition of the performance monitoring shared
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// memory structure. The shared memory is used to communicate between the
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// monitored object side and the performance DLL called by the NT Performance
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// Monitor.
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//
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// Copyright 1986 - 1998 Microsoft Corporation. All Rights Reserved.
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// -----------------------------------------------------------------------------
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#if !defined(_MONSHARE_H)
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#pragma option push -b -a8 -pc -A- /*P_O_Push*/
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#define _MONSHARE_H
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//
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// Mapping and Mutex Object Names
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//
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// NOTE: "" and L"" versions must be the same!!!
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#define MON_MAPPING_NAME_TEMPLATE "MS Exchange SDK PerfMon Mapping %s"
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#define MON_MAPPING_NAME_TEMPLATE_W L"MS Exchange SDK PerfMon Mapping %s"
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#define MON_MUTEX_NAME_TEMPLATE "MS Exchange SDK PerfMon Mutex %s"
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#define MON_MUTEX_NAME_TEMPLATE_W L"MS Exchange SDK PerfMon Mutex %s"
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//
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// Defined Constants
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//
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// MON_SHARED_MEMORY_SIGNATURE identifies the shared memory section as an
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// Exchange SDK performance monitoring shared memory communication block.
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// This constant should be incremented when the structure of the shared
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// memory section is changed to catch version mismatches between the
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// monitored object and the DLL.
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#define MON_SHARED_MEMORY_SIGNATURE 0x47575011
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// MON_DATA_BLOCK_SIZE is the size of the buffer within the shared block
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// in which is built the structure that is sent to the Windows NT
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// Performance Monitor. This value may be increased if needed to hold
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// a larger number of counters. A change in this value does not require
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// any other values to be changed.
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#define MON_DATA_BLOCK_SIZE 4000
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// MON_MUTEX_TIMEOUT is the number of miliseconds to wait for the
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// mutex that locks the shared memory section. May be defined as
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// INFINITE to wait forever.
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#define MON_MUTEX_TIMEOUT (5*60*1000)
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//
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// Structure Definitions
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//
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//$--MONSHAREDMEMORY------------------------------------------------------------
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// This is the structure of the shared memory block used to communicate with
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// the performance DLL. The _PERF_* structures are all built inside the
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// rgbDataBlock array within this structure.
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// -----------------------------------------------------------------------------
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typedef struct _MonSharedMemory // (hungarian notation = msm)
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{
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DWORD dwSignature; // value that identifies this as an
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// Exchange SDK perf mon memory block
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DWORD fDataIsValid; // safe for DLL to use shared mem data
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DWORD ibHeaderOffset; // offset of _PERF_OBJECT_TYPE and
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// _PERF_COUNTER_DEFINITION structures
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// in this shared memory block
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DWORD cbHeaderSize; // size of _PERF_OBJECT_TYPE and
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// _PERF_COUNTER_DEFINITION structures
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// in this shared memory block
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DWORD ibInstanceOffset; // offset of _PERF_INSTANCE_DEFINITION,
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// _PERF_COUNTER_BLOCK and counters
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// in this shared memory block
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DWORD cbInstanceSize; // size of _PERF_INSTANCE_DEFINITION,
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// _PERF_COUNTER_BLOCK and counters
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// in this shared memory block
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BYTE rgbDataBlock[MON_DATA_BLOCK_SIZE]; // the actual data block containing
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// both of the structures listed above
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} MONSHAREDMEMORY, *LPMONSHAREDMEMORY;
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#pragma option pop /*P_O_Pop*/
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#endif
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