mirror of
https://github.com/prometheus-community/windows_exporter.git
synced 2026-02-17 02:06:35 +00:00
chore: release 0.29.0.rc0 (#1600)
This commit is contained in:
Jan-Otto Kröpke
638
pkg/perfdata/pdh.go
Normal file
638
pkg/perfdata/pdh.go
Normal file
@@ -0,0 +1,638 @@
|
||||
// Copyright (c) 2010-2024 The win Authors. All rights reserved.
|
||||
// Copyright (c) 2024 The prometheus-community Authors. All rights reserved.
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without
|
||||
// modification, are permitted provided that the following conditions
|
||||
// are met:
|
||||
// 1. Redistributions of source code must retain the above copyright
|
||||
// notice, this list of conditions and the following disclaimer.
|
||||
// 2. Redistributions in binary form must reproduce the above copyright
|
||||
// notice, this list of conditions and the following disclaimer in the
|
||||
// documentation and/or other materials provided with the distribution.
|
||||
// 3. The names of the authors may not be used to endorse or promote products
|
||||
// derived from this software without specific prior written permission.
|
||||
//
|
||||
// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
|
||||
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
//
|
||||
// This is the official list of 'win' authors for copyright purposes.
|
||||
//
|
||||
// Alexander Neumann <an2048@googlemail.com>
|
||||
// Joseph Watson <jtwatson@linux-consulting.us>
|
||||
// Kevin Pors <krpors@gmail.com>
|
||||
|
||||
//go:build windows
|
||||
|
||||
package perfdata
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"time"
|
||||
"unsafe"
|
||||
|
||||
"github.com/prometheus-community/windows_exporter/pkg/headers/kernel32"
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
// Error codes.
|
||||
const (
|
||||
ErrorSuccess = 0
|
||||
ErrorFailure = 1
|
||||
ErrorInvalidFunction = 1
|
||||
EpochDifferenceMicros int64 = 11644473600000000
|
||||
)
|
||||
|
||||
type (
|
||||
HANDLE uintptr
|
||||
)
|
||||
|
||||
// PDH error codes, which can be returned by all Pdh* functions. Taken from mingw-w64 pdhmsg.h
|
||||
|
||||
const (
|
||||
PdhCstatusValidData = 0x00000000 // The returned data is valid.
|
||||
PdhCstatusNewData = 0x00000001 // The return data value is valid and different from the last sample.
|
||||
PdhCstatusNoMachine = 0x800007D0 // Unable to connect to the specified computer, or the computer is offline.
|
||||
PdhCstatusNoInstance = 0x800007D1
|
||||
PdhMoreData = 0x800007D2 // The PdhGetFormattedCounterArray* function can return this if there's 'more data to be displayed'.
|
||||
PdhCstatusItemNotValidated = 0x800007D3
|
||||
PdhRetry = 0x800007D4
|
||||
PdhNoData = 0x800007D5 // The query does not currently contain any counters (for example, limited access)
|
||||
PdhCalcNegativeDenominator = 0x800007D6
|
||||
PdhCalcNegativeTimebase = 0x800007D7
|
||||
PdhCalcNegativeValue = 0x800007D8
|
||||
PdhDialogCancelled = 0x800007D9
|
||||
PdhEndOfLogFile = 0x800007DA
|
||||
PdhAsyncQueryTimeout = 0x800007DB
|
||||
PdhCannotSetDefaultRealtimeDatasource = 0x800007DC
|
||||
PdhCstatusNoObject = 0xC0000BB8
|
||||
PdhCstatusNoCounter = 0xC0000BB9 // The specified counter could not be found.
|
||||
PdhCstatusInvalidData = 0xC0000BBA // The counter was successfully found, but the data returned is not valid.
|
||||
PdhMemoryAllocationFailure = 0xC0000BBB
|
||||
PdhInvalidHandle = 0xC0000BBC
|
||||
PdhInvalidArgument = 0xC0000BBD // Required argument is missing or incorrect.
|
||||
PdhFunctionNotFound = 0xC0000BBE
|
||||
PdhCstatusNoCountername = 0xC0000BBF
|
||||
PdhCstatusBadCountername = 0xC0000BC0 // Unable to parse the counter path. Check the format and syntax of the specified path.
|
||||
PdhInvalidBuffer = 0xC0000BC1
|
||||
PdhInsufficientBuffer = 0xC0000BC2
|
||||
PdhCannotConnectMachine = 0xC0000BC3
|
||||
PdhInvalidPath = 0xC0000BC4
|
||||
PdhInvalidInstance = 0xC0000BC5
|
||||
PdhInvalidData = 0xC0000BC6 // specified counter does not contain valid data or a successful status code.
|
||||
PdhNoDialogData = 0xC0000BC7
|
||||
PdhCannotReadNameStrings = 0xC0000BC8
|
||||
PdhLogFileCreateError = 0xC0000BC9
|
||||
PdhLogFileOpenError = 0xC0000BCA
|
||||
PdhLogTypeNotFound = 0xC0000BCB
|
||||
PdhNoMoreData = 0xC0000BCC
|
||||
PdhEntryNotInLogFile = 0xC0000BCD
|
||||
PdhDataSourceIsLogFile = 0xC0000BCE
|
||||
PdhDataSourceIsRealTime = 0xC0000BCF
|
||||
PdhUnableReadLogHeader = 0xC0000BD0
|
||||
PdhFileNotFound = 0xC0000BD1
|
||||
PdhFileAlreadyExists = 0xC0000BD2
|
||||
PdhNotImplemented = 0xC0000BD3
|
||||
PdhStringNotFound = 0xC0000BD4
|
||||
PdhUnableMapNameFiles = 0x80000BD5
|
||||
PdhUnknownLogFormat = 0xC0000BD6
|
||||
PdhUnknownLogsvcCommand = 0xC0000BD7
|
||||
PdhLogsvcQueryNotFound = 0xC0000BD8
|
||||
PdhLogsvcNotOpened = 0xC0000BD9
|
||||
PdhWbemError = 0xC0000BDA
|
||||
PdhAccessDenied = 0xC0000BDB
|
||||
PdhLogFileTooSmall = 0xC0000BDC
|
||||
PdhInvalidDatasource = 0xC0000BDD
|
||||
PdhInvalidSqldb = 0xC0000BDE
|
||||
PdhNoCounters = 0xC0000BDF
|
||||
PdhSQLAllocFailed = 0xC0000BE0
|
||||
PdhSQLAllocconFailed = 0xC0000BE1
|
||||
PdhSQLExecDirectFailed = 0xC0000BE2
|
||||
PdhSQLFetchFailed = 0xC0000BE3
|
||||
PdhSQLRowcountFailed = 0xC0000BE4
|
||||
PdhSQLMoreResultsFailed = 0xC0000BE5
|
||||
PdhSQLConnectFailed = 0xC0000BE6
|
||||
PdhSQLBindFailed = 0xC0000BE7
|
||||
PdhCannotConnectWmiServer = 0xC0000BE8
|
||||
PdhPlaCollectionAlreadyRunning = 0xC0000BE9
|
||||
PdhPlaErrorScheduleOverlap = 0xC0000BEA
|
||||
PdhPlaCollectionNotFound = 0xC0000BEB
|
||||
PdhPlaErrorScheduleElapsed = 0xC0000BEC
|
||||
PdhPlaErrorNostart = 0xC0000BED
|
||||
PdhPlaErrorAlreadyExists = 0xC0000BEE
|
||||
PdhPlaErrorTypeMismatch = 0xC0000BEF
|
||||
PdhPlaErrorFilepath = 0xC0000BF0
|
||||
PdhPlaServiceError = 0xC0000BF1
|
||||
PdhPlaValidationError = 0xC0000BF2
|
||||
PdhPlaValidationWarning = 0x80000BF3
|
||||
PdhPlaErrorNameTooLong = 0xC0000BF4
|
||||
PdhInvalidSQLLogFormat = 0xC0000BF5
|
||||
PdhCounterAlreadyInQuery = 0xC0000BF6
|
||||
PdhBinaryLogCorrupt = 0xC0000BF7
|
||||
PdhLogSampleTooSmall = 0xC0000BF8
|
||||
PdhOsLaterVersion = 0xC0000BF9
|
||||
PdhOsEarlierVersion = 0xC0000BFA
|
||||
PdhIncorrectAppendTime = 0xC0000BFB
|
||||
PdhUnmatchedAppendCounter = 0xC0000BFC
|
||||
PdhSQLAlterDetailFailed = 0xC0000BFD
|
||||
PdhQueryPerfDataTimeout = 0xC0000BFE
|
||||
)
|
||||
|
||||
var PDHErrors = map[uint32]string{
|
||||
PdhCstatusValidData: "PDH_CSTATUS_VALID_DATA",
|
||||
PdhCstatusNewData: "PDH_CSTATUS_NEW_DATA",
|
||||
PdhCstatusNoMachine: "PDH_CSTATUS_NO_MACHINE",
|
||||
PdhCstatusNoInstance: "PDH_CSTATUS_NO_INSTANCE",
|
||||
PdhMoreData: "PDH_MORE_DATA",
|
||||
PdhCstatusItemNotValidated: "PDH_CSTATUS_ITEM_NOT_VALIDATED",
|
||||
PdhRetry: "PDH_RETRY",
|
||||
PdhNoData: "PDH_NO_DATA",
|
||||
PdhCalcNegativeDenominator: "PDH_CALC_NEGATIVE_DENOMINATOR",
|
||||
PdhCalcNegativeTimebase: "PDH_CALC_NEGATIVE_TIMEBASE",
|
||||
PdhCalcNegativeValue: "PDH_CALC_NEGATIVE_VALUE",
|
||||
PdhDialogCancelled: "PDH_DIALOG_CANCELLED",
|
||||
PdhEndOfLogFile: "PDH_END_OF_LOG_FILE",
|
||||
PdhAsyncQueryTimeout: "PDH_ASYNC_QUERY_TIMEOUT",
|
||||
PdhCannotSetDefaultRealtimeDatasource: "PDH_CANNOT_SET_DEFAULT_REALTIME_DATASOURCE",
|
||||
PdhCstatusNoObject: "PDH_CSTATUS_NO_OBJECT",
|
||||
PdhCstatusNoCounter: "PDH_CSTATUS_NO_COUNTER",
|
||||
PdhCstatusInvalidData: "PDH_CSTATUS_INVALID_DATA",
|
||||
PdhMemoryAllocationFailure: "PDH_MEMORY_ALLOCATION_FAILURE",
|
||||
PdhInvalidHandle: "PDH_INVALID_HANDLE",
|
||||
PdhInvalidArgument: "PDH_INVALID_ARGUMENT",
|
||||
PdhFunctionNotFound: "PDH_FUNCTION_NOT_FOUND",
|
||||
PdhCstatusNoCountername: "PDH_CSTATUS_NO_COUNTERNAME",
|
||||
PdhCstatusBadCountername: "PDH_CSTATUS_BAD_COUNTERNAME",
|
||||
PdhInvalidBuffer: "PDH_INVALID_BUFFER",
|
||||
PdhInsufficientBuffer: "PDH_INSUFFICIENT_BUFFER",
|
||||
PdhCannotConnectMachine: "PDH_CANNOT_CONNECT_MACHINE",
|
||||
PdhInvalidPath: "PDH_INVALID_PATH",
|
||||
PdhInvalidInstance: "PDH_INVALID_INSTANCE",
|
||||
PdhInvalidData: "PDH_INVALID_DATA",
|
||||
PdhNoDialogData: "PDH_NO_DIALOG_DATA",
|
||||
PdhCannotReadNameStrings: "PDH_CANNOT_READ_NAME_STRINGS",
|
||||
PdhLogFileCreateError: "PDH_LOG_FILE_CREATE_ERROR",
|
||||
PdhLogFileOpenError: "PDH_LOG_FILE_OPEN_ERROR",
|
||||
PdhLogTypeNotFound: "PDH_LOG_TYPE_NOT_FOUND",
|
||||
PdhNoMoreData: "PDH_NO_MORE_DATA",
|
||||
PdhEntryNotInLogFile: "PDH_ENTRY_NOT_IN_LOG_FILE",
|
||||
PdhDataSourceIsLogFile: "PDH_DATA_SOURCE_IS_LOG_FILE",
|
||||
PdhDataSourceIsRealTime: "PDH_DATA_SOURCE_IS_REAL_TIME",
|
||||
PdhUnableReadLogHeader: "PDH_UNABLE_READ_LOG_HEADER",
|
||||
PdhFileNotFound: "PDH_FILE_NOT_FOUND",
|
||||
PdhFileAlreadyExists: "PDH_FILE_ALREADY_EXISTS",
|
||||
PdhNotImplemented: "PDH_NOT_IMPLEMENTED",
|
||||
PdhStringNotFound: "PDH_STRING_NOT_FOUND",
|
||||
PdhUnableMapNameFiles: "PDH_UNABLE_MAP_NAME_FILES",
|
||||
PdhUnknownLogFormat: "PDH_UNKNOWN_LOG_FORMAT",
|
||||
PdhUnknownLogsvcCommand: "PDH_UNKNOWN_LOGSVC_COMMAND",
|
||||
PdhLogsvcQueryNotFound: "PDH_LOGSVC_QUERY_NOT_FOUND",
|
||||
PdhLogsvcNotOpened: "PDH_LOGSVC_NOT_OPENED",
|
||||
PdhWbemError: "PDH_WBEM_ERROR",
|
||||
PdhAccessDenied: "PDH_ACCESS_DENIED",
|
||||
PdhLogFileTooSmall: "PDH_LOG_FILE_TOO_SMALL",
|
||||
PdhInvalidDatasource: "PDH_INVALID_DATASOURCE",
|
||||
PdhInvalidSqldb: "PDH_INVALID_SQLDB",
|
||||
PdhNoCounters: "PDH_NO_COUNTERS",
|
||||
PdhSQLAllocFailed: "PDH_SQL_ALLOC_FAILED",
|
||||
PdhSQLAllocconFailed: "PDH_SQL_ALLOCCON_FAILED",
|
||||
PdhSQLExecDirectFailed: "PDH_SQL_EXEC_DIRECT_FAILED",
|
||||
PdhSQLFetchFailed: "PDH_SQL_FETCH_FAILED",
|
||||
PdhSQLRowcountFailed: "PDH_SQL_ROWCOUNT_FAILED",
|
||||
PdhSQLMoreResultsFailed: "PDH_SQL_MORE_RESULTS_FAILED",
|
||||
PdhSQLConnectFailed: "PDH_SQL_CONNECT_FAILED",
|
||||
PdhSQLBindFailed: "PDH_SQL_BIND_FAILED",
|
||||
PdhCannotConnectWmiServer: "PDH_CANNOT_CONNECT_WMI_SERVER",
|
||||
PdhPlaCollectionAlreadyRunning: "PDH_PLA_COLLECTION_ALREADY_RUNNING",
|
||||
PdhPlaErrorScheduleOverlap: "PDH_PLA_ERROR_SCHEDULE_OVERLAP",
|
||||
PdhPlaCollectionNotFound: "PDH_PLA_COLLECTION_NOT_FOUND",
|
||||
PdhPlaErrorScheduleElapsed: "PDH_PLA_ERROR_SCHEDULE_ELAPSED",
|
||||
PdhPlaErrorNostart: "PDH_PLA_ERROR_NOSTART",
|
||||
PdhPlaErrorAlreadyExists: "PDH_PLA_ERROR_ALREADY_EXISTS",
|
||||
PdhPlaErrorTypeMismatch: "PDH_PLA_ERROR_TYPE_MISMATCH",
|
||||
PdhPlaErrorFilepath: "PDH_PLA_ERROR_FILEPATH",
|
||||
PdhPlaServiceError: "PDH_PLA_SERVICE_ERROR",
|
||||
PdhPlaValidationError: "PDH_PLA_VALIDATION_ERROR",
|
||||
PdhPlaValidationWarning: "PDH_PLA_VALIDATION_WARNING",
|
||||
PdhPlaErrorNameTooLong: "PDH_PLA_ERROR_NAME_TOO_LONG",
|
||||
PdhInvalidSQLLogFormat: "PDH_INVALID_SQL_LOG_FORMAT",
|
||||
PdhCounterAlreadyInQuery: "PDH_COUNTER_ALREADY_IN_QUERY",
|
||||
PdhBinaryLogCorrupt: "PDH_BINARY_LOG_CORRUPT",
|
||||
PdhLogSampleTooSmall: "PDH_LOG_SAMPLE_TOO_SMALL",
|
||||
PdhOsLaterVersion: "PDH_OS_LATER_VERSION",
|
||||
PdhOsEarlierVersion: "PDH_OS_EARLIER_VERSION",
|
||||
PdhIncorrectAppendTime: "PDH_INCORRECT_APPEND_TIME",
|
||||
PdhUnmatchedAppendCounter: "PDH_UNMATCHED_APPEND_COUNTER",
|
||||
PdhSQLAlterDetailFailed: "PDH_SQL_ALTER_DETAIL_FAILED",
|
||||
PdhQueryPerfDataTimeout: "PDH_QUERY_PERF_DATA_TIMEOUT",
|
||||
}
|
||||
|
||||
// Formatting options for GetFormattedCounterValue().
|
||||
//
|
||||
//goland:noinspection GoUnusedConst
|
||||
const (
|
||||
PdhFmtRaw = 0x00000010
|
||||
PdhFmtAnsi = 0x00000020
|
||||
PdhFmtUnicode = 0x00000040
|
||||
PdhFmtLong = 0x00000100 // Return data as a long int.
|
||||
PdhFmtDouble = 0x00000200 // Return data as a double precision floating point real.
|
||||
PdhFmtLarge = 0x00000400 // Return data as a 64 bit integer.
|
||||
PdhFmtNoscale = 0x00001000 // can be OR-ed: Do not apply the counter's default scaling factor.
|
||||
PdhFmt1000 = 0x00002000 // can be OR-ed: multiply the actual value by 1,000.
|
||||
PdhFmtNodata = 0x00004000 // can be OR-ed: unknown what this is for, MSDN says nothing.
|
||||
PdhFmtNocap100 = 0x00008000 // can be OR-ed: do not cap values > 100.
|
||||
PerfDetailCostly = 0x00010000
|
||||
PerfDetailStandard = 0x0000FFFF
|
||||
)
|
||||
|
||||
type (
|
||||
pdhQueryHandle HANDLE // query handle
|
||||
pdhCounterHandle HANDLE // counter handle
|
||||
)
|
||||
|
||||
var (
|
||||
libPdhDll = windows.NewLazySystemDLL("pdh.dll")
|
||||
|
||||
pdhAddCounterW = libPdhDll.NewProc("PdhAddCounterW")
|
||||
pdhAddEnglishCounterW = libPdhDll.NewProc("PdhAddEnglishCounterW")
|
||||
pdhCloseQuery = libPdhDll.NewProc("PdhCloseQuery")
|
||||
pdhCollectQueryData = libPdhDll.NewProc("PdhCollectQueryData")
|
||||
pdhCollectQueryDataWithTime = libPdhDll.NewProc("PdhCollectQueryDataWithTime")
|
||||
pdhGetFormattedCounterValue = libPdhDll.NewProc("PdhGetFormattedCounterValue")
|
||||
pdhGetFormattedCounterArrayW = libPdhDll.NewProc("PdhGetFormattedCounterArrayW")
|
||||
pdhOpenQuery = libPdhDll.NewProc("PdhOpenQuery")
|
||||
pdhValidatePathW = libPdhDll.NewProc("PdhValidatePathW")
|
||||
pdhExpandWildCardPathW = libPdhDll.NewProc("PdhExpandWildCardPathW")
|
||||
pdhGetCounterInfoW = libPdhDll.NewProc("PdhGetCounterInfoW")
|
||||
pdhGetRawCounterValue = libPdhDll.NewProc("PdhGetRawCounterValue")
|
||||
pdhGetRawCounterArrayW = libPdhDll.NewProc("PdhGetRawCounterArrayW")
|
||||
pdhPdhGetCounterTimeBase = libPdhDll.NewProc("PdhGetCounterTimeBase")
|
||||
)
|
||||
|
||||
// PdhAddCounter adds the specified counter to the query. This is the internationalized version. Preferably, use the
|
||||
// function PdhAddEnglishCounter instead. hQuery is the query handle, which has been fetched by PdhOpenQuery.
|
||||
// szFullCounterPath is a full, internationalized counter path (this will differ per Windows language version).
|
||||
// dwUserData is a 'user-defined value', which becomes part of the counter information. To retrieve this value
|
||||
// later, call PdhGetCounterInfo() and access dwQueryUserData of the PdhCounterInfo structure.
|
||||
//
|
||||
// Examples of szFullCounterPath (in an English version of Windows):
|
||||
//
|
||||
// \\Processor(_Total)\\% Idle Time
|
||||
// \\Processor(_Total)\\% Processor Time
|
||||
// \\LogicalDisk(C:)\% Free Space
|
||||
//
|
||||
// To view all (internationalized...) counters on a system, there are three non-programmatic ways: perfmon utility,
|
||||
// the typeperf command, and the registry editor. perfmon.exe is perhaps the easiest way, because it's basically a
|
||||
// full implementation of the pdh.dll API, except with a GUI and all that. The registry setting also provides an
|
||||
// interface to the available counters, and can be found at the following key:
|
||||
//
|
||||
// HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib\CurrentLanguage
|
||||
//
|
||||
// This registry key contains several values as follows:
|
||||
//
|
||||
// 1
|
||||
// 1847
|
||||
// 2
|
||||
// System
|
||||
// 4
|
||||
// Memory
|
||||
// 6
|
||||
// % Processor Time
|
||||
// ... many, many more
|
||||
//
|
||||
// Somehow, these numeric values can be used as szFullCounterPath too:
|
||||
//
|
||||
// \2\6 will correspond to \\System\% Processor Time
|
||||
//
|
||||
// The typeperf command may also be pretty easy. To find all performance counters, simply execute:
|
||||
//
|
||||
// typeperf -qx
|
||||
func PdhAddCounter(hQuery pdhQueryHandle, szFullCounterPath string, dwUserData uintptr, phCounter *pdhCounterHandle) uint32 {
|
||||
ptxt, _ := windows.UTF16PtrFromString(szFullCounterPath)
|
||||
ret, _, _ := pdhAddCounterW.Call(
|
||||
uintptr(hQuery),
|
||||
uintptr(unsafe.Pointer(ptxt)),
|
||||
dwUserData,
|
||||
uintptr(unsafe.Pointer(phCounter)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhAddEnglishCounterSupported returns true if PdhAddEnglishCounterW Win API function was found in pdh.dll.
|
||||
// PdhAddEnglishCounterW function is not supported on pre-Windows Vista systems.
|
||||
func PdhAddEnglishCounterSupported() bool {
|
||||
return pdhAddEnglishCounterW != nil
|
||||
}
|
||||
|
||||
// PdhAddEnglishCounter adds the specified language-neutral counter to the query. See the PdhAddCounter function. This function only exists on
|
||||
// Windows versions higher than Vista.
|
||||
func PdhAddEnglishCounter(hQuery pdhQueryHandle, szFullCounterPath string, dwUserData uintptr, phCounter *pdhCounterHandle) uint32 {
|
||||
if pdhAddEnglishCounterW == nil {
|
||||
return ErrorInvalidFunction
|
||||
}
|
||||
|
||||
ptxt, _ := windows.UTF16PtrFromString(szFullCounterPath)
|
||||
ret, _, _ := pdhAddEnglishCounterW.Call(
|
||||
uintptr(hQuery),
|
||||
uintptr(unsafe.Pointer(ptxt)),
|
||||
dwUserData,
|
||||
uintptr(unsafe.Pointer(phCounter)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhCloseQuery closes all counters contained in the specified query, closes all handles related to the query,
|
||||
// and frees all memory associated with the query.
|
||||
func PdhCloseQuery(hQuery pdhQueryHandle) uint32 {
|
||||
ret, _, _ := pdhCloseQuery.Call(uintptr(hQuery))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhCollectQueryData collects the current raw data value for all counters in the specified query and updates the status
|
||||
// code of each counter. With some counters, this function needs to be repeatedly called before the value
|
||||
// of the counter can be extracted with PdhGetFormattedCounterValue(). For example, the following code
|
||||
// requires at least two calls:
|
||||
//
|
||||
// var handle win.PDH_HQUERY
|
||||
// var counterHandle win.PDH_HCOUNTER
|
||||
// ret := win.PdhOpenQuery(0, 0, &handle)
|
||||
// ret = win.PdhAddEnglishCounter(handle, "\\Processor(_Total)\\% Idle Time", 0, &counterHandle)
|
||||
// var derp win.PDH_FMT_COUNTERVALUE_DOUBLE
|
||||
//
|
||||
// ret = win.PdhCollectQueryData(handle)
|
||||
// fmt.Printf("Collect return code is %x\n", ret) // return code will be PDH_CSTATUS_INVALID_DATA
|
||||
// ret = win.PdhGetFormattedCounterValueDouble(counterHandle, 0, &derp)
|
||||
//
|
||||
// ret = win.PdhCollectQueryData(handle)
|
||||
// fmt.Printf("Collect return code is %x\n", ret) // return code will be ERROR_SUCCESS
|
||||
// ret = win.PdhGetFormattedCounterValueDouble(counterHandle, 0, &derp)
|
||||
//
|
||||
// The PdhCollectQueryData will return an error in the first call because it needs two values for
|
||||
// displaying the correct data for the processor idle time. The second call will have a 0 return code.
|
||||
func PdhCollectQueryData(hQuery pdhQueryHandle) uint32 {
|
||||
ret, _, _ := pdhCollectQueryData.Call(uintptr(hQuery))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhCollectQueryDataWithTime queries data from perfmon, retrieving the device/windows timestamp from the node it was collected on.
|
||||
// Converts the filetime structure to a GO time class and returns the native time.
|
||||
func PdhCollectQueryDataWithTime(hQuery pdhQueryHandle) (uint32, time.Time) {
|
||||
var localFileTime windows.Filetime
|
||||
|
||||
ret, _, _ := pdhCollectQueryDataWithTime.Call(uintptr(hQuery), uintptr(unsafe.Pointer(&localFileTime)))
|
||||
|
||||
if ret == ErrorSuccess {
|
||||
var utcFileTime windows.Filetime
|
||||
|
||||
if ret := kernel32.LocalFileTimeToFileTime(&localFileTime, &utcFileTime); ret == 0 {
|
||||
return uint32(ErrorFailure), time.Now()
|
||||
}
|
||||
|
||||
retTime := time.Unix(0, utcFileTime.Nanoseconds())
|
||||
|
||||
return uint32(ErrorSuccess), retTime
|
||||
}
|
||||
|
||||
return uint32(ret), time.Now()
|
||||
}
|
||||
|
||||
// PdhGetFormattedCounterValueDouble formats the given hCounter using a 'double'. The result is set into the specialized union struct pValue.
|
||||
// This function does not directly translate to a Windows counterpart due to union specialization tricks.
|
||||
func PdhGetFormattedCounterValueDouble(hCounter pdhCounterHandle, lpdwType *uint32, pValue *PdhFmtCountervalueDouble) uint32 {
|
||||
ret, _, _ := pdhGetFormattedCounterValue.Call(
|
||||
uintptr(hCounter),
|
||||
uintptr(PdhFmtDouble|PdhFmtNocap100),
|
||||
uintptr(unsafe.Pointer(lpdwType)),
|
||||
uintptr(unsafe.Pointer(pValue)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhGetFormattedCounterArrayDouble returns an array of formatted counter values. Use this function when you want to format the counter values of a
|
||||
// counter that contains a wildcard character for the instance name. The itemBuffer must a slice of type PdhFmtCountervalueItemDouble.
|
||||
// An example of how this function can be used:
|
||||
//
|
||||
// okPath := "\\Process(*)\\% Processor Time" // notice the wildcard * character
|
||||
//
|
||||
// // omitted all necessary stuff ...
|
||||
//
|
||||
// var bufSize uint32
|
||||
// var bufCount uint32
|
||||
// var size uint32 = uint32(unsafe.Sizeof(win.PDH_FMT_COUNTERVALUE_ITEM_DOUBLE{}))
|
||||
// var emptyBuf [1]win.PDH_FMT_COUNTERVALUE_ITEM_DOUBLE // need at least 1 addressable null ptr.
|
||||
//
|
||||
// for {
|
||||
// // collect
|
||||
// ret := win.PdhCollectQueryData(queryHandle)
|
||||
// if ret == win.ERROR_SUCCESS {
|
||||
// ret = win.PdhGetFormattedCounterArrayDouble(counterHandle, &bufSize, &bufCount, &emptyBuf[0]) // uses null ptr here according to MSDN.
|
||||
// if ret == win.PDH_MORE_DATA {
|
||||
// filledBuf := make([]win.PDH_FMT_COUNTERVALUE_ITEM_DOUBLE, bufCount*size)
|
||||
// ret = win.PdhGetFormattedCounterArrayDouble(counterHandle, &bufSize, &bufCount, &filledBuf[0])
|
||||
// for i := 0; i < int(bufCount); i++ {
|
||||
// c := filledBuf[i]
|
||||
// var s string = win.UTF16PtrToString(c.SzName)
|
||||
// fmt.Printf("Index %d -> %s, value %v\n", i, s, c.FmtValue.DoubleValue)
|
||||
// }
|
||||
//
|
||||
// filledBuf = nil
|
||||
// // Need to at least set bufSize to zero, because if not, the function will not
|
||||
// // return PDH_MORE_DATA and will not set the bufSize.
|
||||
// bufCount = 0
|
||||
// bufSize = 0
|
||||
// }
|
||||
//
|
||||
// time.Sleep(2000 * time.Millisecond)
|
||||
// }
|
||||
// }
|
||||
func PdhGetFormattedCounterArrayDouble(hCounter pdhCounterHandle, lpdwBufferSize *uint32, lpdwBufferCount *uint32, itemBuffer *byte) uint32 {
|
||||
ret, _, _ := pdhGetFormattedCounterArrayW.Call(
|
||||
uintptr(hCounter),
|
||||
uintptr(PdhFmtDouble|PdhFmtNocap100),
|
||||
uintptr(unsafe.Pointer(lpdwBufferSize)),
|
||||
uintptr(unsafe.Pointer(lpdwBufferCount)),
|
||||
uintptr(unsafe.Pointer(itemBuffer)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhOpenQuery creates a new query that is used to manage the collection of performance data.
|
||||
// szDataSource is a null terminated string that specifies the name of the log file from which to
|
||||
// retrieve the performance data. If 0, performance data is collected from a real-time data source.
|
||||
// dwUserData is a user-defined value to associate with this query. To retrieve the user data later,
|
||||
// call PdhGetCounterInfo and access dwQueryUserData of the PdhCounterInfo structure. phQuery is
|
||||
// the handle to the query, and must be used in subsequent calls. This function returns a PDH_
|
||||
// constant error code, or ErrorSuccess if the call succeeded.
|
||||
func PdhOpenQuery(szDataSource uintptr, dwUserData uintptr, phQuery *pdhQueryHandle) uint32 {
|
||||
ret, _, _ := pdhOpenQuery.Call(
|
||||
szDataSource,
|
||||
dwUserData,
|
||||
uintptr(unsafe.Pointer(phQuery)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhExpandWildCardPath examines the specified computer or log file and returns those counter paths that match the given counter path
|
||||
// which contains wildcard characters. The general counter path format is as follows:
|
||||
//
|
||||
// \\computer\object(parent/instance#index)\counter
|
||||
//
|
||||
// The parent, instance, index, and counter components of the counter path may contain either a valid name or a wildcard character.
|
||||
// The computer, parent, instance, and index components are not necessary for all counters.
|
||||
//
|
||||
// The following is a list of the possible formats:
|
||||
//
|
||||
// \\computer\object(parent/instance#index)\counter
|
||||
// \\computer\object(parent/instance)\counter
|
||||
// \\computer\object(instance#index)\counter
|
||||
// \\computer\object(instance)\counter
|
||||
// \\computer\object\counter
|
||||
// \object(parent/instance#index)\counter
|
||||
// \object(parent/instance)\counter
|
||||
// \object(instance#index)\counter
|
||||
// \object(instance)\counter
|
||||
// \object\counter
|
||||
// Use an asterisk (*) as the wildcard character, for example, \object(*)\counter.
|
||||
//
|
||||
// If a wildcard character is specified in the parent name, all instances of the specified object
|
||||
// that match the specified instance and counter fields will be returned.
|
||||
// For example, \object(*/instance)\counter.
|
||||
//
|
||||
// If a wildcard character is specified in the instance name, all instances of the specified object and parent object will be returned if all instance names
|
||||
// corresponding to the specified index match the wildcard character. For example, \object(parent/*)\counter.
|
||||
// If the object does not contain an instance, an error occurs.
|
||||
//
|
||||
// If a wildcard character is specified in the counter name, all counters of the specified object are returned.
|
||||
//
|
||||
// Partial counter path string matches (for example, "pro*") are supported.
|
||||
func PdhExpandWildCardPath(szWildCardPath string, mszExpandedPathList *uint16, pcchPathListLength *uint32) uint32 {
|
||||
ptxt, _ := windows.UTF16PtrFromString(szWildCardPath)
|
||||
flags := uint32(0) // expand instances and counters
|
||||
ret, _, _ := pdhExpandWildCardPathW.Call(
|
||||
0, // search counters on local computer
|
||||
uintptr(unsafe.Pointer(ptxt)),
|
||||
uintptr(unsafe.Pointer(mszExpandedPathList)),
|
||||
uintptr(unsafe.Pointer(pcchPathListLength)),
|
||||
uintptr(unsafe.Pointer(&flags)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhValidatePath validates a path. Will return ErrorSuccess when ok, or PdhCstatusBadCountername when the path is erroneous.
|
||||
func PdhValidatePath(path string) uint32 {
|
||||
ptxt, _ := windows.UTF16PtrFromString(path)
|
||||
ret, _, _ := pdhValidatePathW.Call(uintptr(unsafe.Pointer(ptxt)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
func PdhFormatError(msgID uint32) string {
|
||||
var flags uint32 = windows.FORMAT_MESSAGE_FROM_HMODULE | windows.FORMAT_MESSAGE_ARGUMENT_ARRAY | windows.FORMAT_MESSAGE_IGNORE_INSERTS
|
||||
|
||||
buf := make([]uint16, 300)
|
||||
_, err := windows.FormatMessage(flags, libPdhDll.Handle(), msgID, 0, buf, nil)
|
||||
|
||||
if err == nil {
|
||||
return windows.UTF16PtrToString(&buf[0])
|
||||
}
|
||||
|
||||
return fmt.Sprintf("(pdhErr=%d) %s", msgID, err.Error())
|
||||
}
|
||||
|
||||
// PdhGetCounterInfo retrieves information about a counter, such as data size, counter type, path, and user-supplied data values
|
||||
// hCounter [in]
|
||||
// Handle of the counter from which you want to retrieve information. The PdhAddCounter function returns this handle.
|
||||
//
|
||||
// bRetrieveExplainText [in]
|
||||
// Determines whether explain text is retrieved. If you set this parameter to TRUE, the explain text for the counter is retrieved.
|
||||
// If you set this parameter to FALSE, the field in the returned buffer is NULL.
|
||||
//
|
||||
// pdwBufferSize [in, out]
|
||||
// Size of the lpBuffer buffer, in bytes. If zero on input, the function returns PdhMoreData and sets this parameter to the required buffer size.
|
||||
// If the buffer is larger than the required size, the function sets this parameter to the actual size of the buffer that was used.
|
||||
// If the specified size on input is greater than zero but less than the required size, you should not rely on the returned size to reallocate the buffer.
|
||||
//
|
||||
// lpBuffer [out]
|
||||
// Caller-allocated buffer that receives a PdhCounterInfo structure.
|
||||
// The structure is variable-length, because the string data is appended to the end of the fixed-format portion of the structure.
|
||||
// This is done so that all data is returned in a single buffer allocated by the caller. Set to NULL if pdwBufferSize is zero.
|
||||
func PdhGetCounterInfo(hCounter pdhCounterHandle, bRetrieveExplainText int, pdwBufferSize *uint32, lpBuffer *byte) uint32 {
|
||||
ret, _, _ := pdhGetCounterInfoW.Call(
|
||||
uintptr(hCounter),
|
||||
uintptr(bRetrieveExplainText),
|
||||
uintptr(unsafe.Pointer(pdwBufferSize)),
|
||||
uintptr(unsafe.Pointer(lpBuffer)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhGetRawCounterValue returns the current raw value of the counter.
|
||||
// If the specified counter instance does not exist, this function will return ErrorSuccess
|
||||
// and the CStatus member of the PdhRawCounter structure will contain PdhCstatusNoInstance.
|
||||
//
|
||||
// hCounter [in]
|
||||
// Handle of the counter from which to retrieve the current raw value. The PdhAddCounter function returns this handle.
|
||||
//
|
||||
// lpdwType [out]
|
||||
// Receives the counter type. For a list of counter types, see the Counter Types section of the Windows Server 2003 Deployment Kit.
|
||||
// This parameter is optional.
|
||||
//
|
||||
// pValue [out]
|
||||
// A PdhRawCounter structure that receives the counter value.
|
||||
func PdhGetRawCounterValue(hCounter pdhCounterHandle, lpdwType *uint32, pValue *PdhRawCounter) uint32 {
|
||||
ret, _, _ := pdhGetRawCounterValue.Call(
|
||||
uintptr(hCounter),
|
||||
uintptr(unsafe.Pointer(lpdwType)),
|
||||
uintptr(unsafe.Pointer(pValue)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhGetRawCounterArray returns an array of raw values from the specified counter. Use this function when you want to retrieve the raw counter values
|
||||
// of a counter that contains a wildcard character for the instance name.
|
||||
// hCounter
|
||||
// Handle of the counter for whose current raw instance values you want to retrieve. The PdhAddCounter function returns this handle.
|
||||
//
|
||||
// lpdwBufferSize
|
||||
// Size of the ItemBuffer buffer, in bytes. If zero on input, the function returns PdhMoreData and sets this parameter to the required buffer size.
|
||||
// If the buffer is larger than the required size, the function sets this parameter to the actual size of the buffer that was used.
|
||||
// If the specified size on input is greater than zero but less than the required size, you should not rely on the returned size to reallocate the buffer.
|
||||
//
|
||||
// lpdwItemCount
|
||||
// Number of raw counter values in the ItemBuffer buffer.
|
||||
//
|
||||
// ItemBuffer
|
||||
// Caller-allocated buffer that receives the array of PdhRawCounterItem structures; the structures contain the raw instance counter values.
|
||||
// Set to NULL if lpdwBufferSize is zero.
|
||||
func PdhGetRawCounterArray(hCounter pdhCounterHandle, lpdwBufferSize *uint32, lpdwBufferCount *uint32, itemBuffer *byte) uint32 {
|
||||
ret, _, _ := pdhGetRawCounterArrayW.Call(
|
||||
uintptr(hCounter),
|
||||
uintptr(unsafe.Pointer(lpdwBufferSize)),
|
||||
uintptr(unsafe.Pointer(lpdwBufferCount)),
|
||||
uintptr(unsafe.Pointer(itemBuffer)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
|
||||
// PdhGetCounterTimeBase returns the time base of the specified counter.
|
||||
// hCounter
|
||||
// Handle of the counter for whose current raw instance values you want to retrieve. The PdhAddCounter function returns this handle.
|
||||
//
|
||||
// lpdwItemCount
|
||||
// Time base that specifies the number of performance values a counter samples per second.
|
||||
func PdhGetCounterTimeBase(hCounter pdhCounterHandle, pTimeBase *float64) uint32 {
|
||||
ret, _, _ := pdhPdhGetCounterTimeBase.Call(
|
||||
uintptr(hCounter),
|
||||
uintptr(unsafe.Pointer(pTimeBase)))
|
||||
|
||||
return uint32(ret)
|
||||
}
|
||||
Reference in New Issue
Block a user