Source code of Windows XP (NT5)
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/**********************************************************************/
/** Microsoft Windows NT **/
/** Copyright(c) Microsoft Corp., 1993 **/
/**********************************************************************/
/*
ftpdata.h
Extensible object definitions for the WINS Server's counter
objects & counters.
FILE HISTORY:
Pradeepb 20-July-1993 Created.
*/
#ifndef _WINSDATA_H_
#define _WINSDATA_H_
//
// This structure is used to ensure the first counter is properly
// aligned. Unfortunately, since PERF_COUNTER_BLOCK consists
// of just a single DWORD, any LARGE_INTEGERs that immediately
// follow will not be aligned properly.
//
// In our case, the counters that follow are of type DWORD, so we do not
// need to pad. The total number of bytes in the buffer returned to perflib
// *has* to be a multiple of 8 otherwise perflib is going to log an
// event in the application log indicating that the dll needs to be fixed.
// Perflib requires buffer data returned to be 8 byte aligned because it
// concatenates the data from multiple dlls. *Ideally, perflib should be
// doing the padding before concatenating*. Since WINS
// has an odd number of counters (there are 15 counters) and
// PerfCounterBlock is DWORD, we should not pad the WINS_DATA_COUNTER_BLOCK.
// if we do, the length will become 732 and so it will not be a multiple of
// 8
//
// This structure requires "natural" packing & alignment (probably
// quad-word, especially on Alpha). Ergo, keep it out of the
// #pragma pack(4) scope below.
//
typedef struct _WINSDATA_COUNTER_BLOCK
{
PERF_COUNTER_BLOCK PerfCounterBlock;
// DWORD DummyEntryForAlignmentPurposesOnly;
} WINSDATA_COUNTER_BLOCK;
//
// The routines that load these structures assume that all fields
// are DWORD packed & aligned.
//
#pragma pack(4)
//
// Offsets within a PERF_COUNTER_BLOCK.
//
#define WINSDATA_UNIQUE_REGISTRATIONS_OFFSET sizeof(WINSDATA_COUNTER_BLOCK)
#define WINSDATA_GROUP_REGISTRATIONS_OFFSET \
(WINSDATA_UNIQUE_REGISTRATIONS_OFFSET + sizeof(DWORD))
#define WINSDATA_TOTAL_REGISTRATIONS_OFFSET \
(WINSDATA_GROUP_REGISTRATIONS_OFFSET + sizeof(DWORD))
#define WINSDATA_UNIQUE_REFRESHES_OFFSET \
(WINSDATA_TOTAL_REGISTRATIONS_OFFSET + sizeof(DWORD))
#define WINSDATA_GROUP_REFRESHES_OFFSET \
(WINSDATA_UNIQUE_REFRESHES_OFFSET + sizeof(DWORD))
#define WINSDATA_TOTAL_REFRESHES_OFFSET \
(WINSDATA_GROUP_REFRESHES_OFFSET + sizeof(DWORD))
#define WINSDATA_RELEASES_OFFSET \
(WINSDATA_TOTAL_REFRESHES_OFFSET + sizeof(DWORD))
#define WINSDATA_QUERIES_OFFSET \
(WINSDATA_RELEASES_OFFSET + sizeof(DWORD))
#define WINSDATA_UNIQUE_CONFLICTS_OFFSET \
(WINSDATA_QUERIES_OFFSET + sizeof(DWORD))
#define WINSDATA_GROUP_CONFLICTS_OFFSET \
(WINSDATA_UNIQUE_CONFLICTS_OFFSET + sizeof(DWORD))
#define WINSDATA_TOTAL_CONFLICTS_OFFSET \
(WINSDATA_GROUP_CONFLICTS_OFFSET + sizeof(DWORD))
#define WINSDATA_SUCC_RELEASES_OFFSET \
(WINSDATA_TOTAL_CONFLICTS_OFFSET + sizeof(DWORD))
#define WINSDATA_FAIL_RELEASES_OFFSET \
(WINSDATA_SUCC_RELEASES_OFFSET + sizeof(DWORD))
#define WINSDATA_SUCC_QUERIES_OFFSET \
(WINSDATA_FAIL_RELEASES_OFFSET + sizeof(DWORD))
#define WINSDATA_FAIL_QUERIES_OFFSET \
(WINSDATA_SUCC_QUERIES_OFFSET + sizeof(DWORD))
#define WINSDATA_SIZE_OF_PERFORMANCE_DATA \
(WINSDATA_FAIL_QUERIES_OFFSET + sizeof(DWORD))
//
// The counter structure returned.
//
//
// If the number of counters is odd, do not use DWORD alignment in
// WINSDATA_COUNTER_BLOCK, otherwise, use it. See comment near the
// definition of the above structure to get more info.
//
typedef struct _WINSDATA_DATA_DEFINITION
{
PERF_OBJECT_TYPE ObjectType;
PERF_COUNTER_DEFINITION UniqueReg;
PERF_COUNTER_DEFINITION GroupReg;
PERF_COUNTER_DEFINITION TotalReg;
PERF_COUNTER_DEFINITION UniqueRef;
PERF_COUNTER_DEFINITION GroupRef;
PERF_COUNTER_DEFINITION TotalRef;
PERF_COUNTER_DEFINITION Releases;
PERF_COUNTER_DEFINITION Queries;
PERF_COUNTER_DEFINITION UniqueCnf;
PERF_COUNTER_DEFINITION GroupCnf;
PERF_COUNTER_DEFINITION TotalCnf;
PERF_COUNTER_DEFINITION SuccReleases;
PERF_COUNTER_DEFINITION FailReleases;
PERF_COUNTER_DEFINITION SuccQueries;
PERF_COUNTER_DEFINITION FailQueries;
} WINSDATA_DATA_DEFINITION;
extern WINSDATA_DATA_DEFINITION WinsDataDataDefinition;
#define NUMBER_OF_WINSDATA_COUNTERS ((sizeof(WINSDATA_DATA_DEFINITION) - \
sizeof(PERF_OBJECT_TYPE)) / \
sizeof(PERF_COUNTER_DEFINITION))
#define WINSDATA_PERFORMANCE_KEY \
TEXT("System\\CurrentControlSet\\Services\\Wins\\Performance")
//
// Restore default packing & alignment.
//
#pragma pack()
#endif // _WINSDATA_H_