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pdh_amd64.go
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/
pdh_amd64.go
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// Copyright (c) 2010 The win 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>
// +build windows
package perfcounters
// Union specialization for double values
type PDH_FMT_COUNTERVALUE_DOUBLE struct {
CStatus uint32
DoubleValue float64
}
// Union specialization for 64 bit integer values
type PDH_FMT_COUNTERVALUE_LARGE struct {
CStatus uint32
LargeValue int64
}
// Union specialization for long values
type PDH_FMT_COUNTERVALUE_LONG struct {
CStatus uint32
LongValue int32
padding [4]byte
}
type PDH_FMT_COUNTERVALUE_ITEM_DOUBLE struct {
SzName *uint16
FmtValue PDH_FMT_COUNTERVALUE_DOUBLE
}
// Union specialization for 'large' values, used by PdhGetFormattedCounterArrayLarge()
type PDH_FMT_COUNTERVALUE_ITEM_LARGE struct {
SzName *uint16 // pointer to a string
FmtValue PDH_FMT_COUNTERVALUE_LARGE
}
// Union specialization for long values, used by PdhGetFormattedCounterArrayLong()
type PDH_FMT_COUNTERVALUE_ITEM_LONG struct {
SzName *uint16 // pointer to a string
FmtValue PDH_FMT_COUNTERVALUE_LONG
}
//PDH_COUNTER_INFO structure contains information describing the properties of a counter. This information also includes the counter path.
type PDH_COUNTER_INFO struct {
//Size of the structure, including the appended strings, in bytes.
DwLength uint32
//Counter type. For a list of counter types, see the Counter Types section of the <a "href=http://go.microsoft.com/fwlink/p/?linkid=84422">Windows Server 2003 Deployment Kit</a>.
//The counter type constants are defined in Winperf.h.
DwType uint32
//Counter version information. Not used.
CVersion uint32
//Counter status that indicates if the counter value is valid. For a list of possible values,
//see <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/aa371894(v=vs.85).aspx">Checking PDH Interface Return Values</a>.
CStatus uint32
//Scale factor to use when computing the displayable value of the counter. The scale factor is a power of ten.
//The valid range of this parameter is PDH_MIN_SCALE (–7) (the returned value is the actual value times 10–⁷) to
//PDH_MAX_SCALE (+7) (the returned value is the actual value times 10⁺⁷). A value of zero will set the scale to one, so that the actual value is returned
LScale int32
//Default scale factor as suggested by the counter's provider.
LDefaultScale int32
//The value passed in the dwUserData parameter when calling PdhAddCounter.
DwUserData *uint32
//The value passed in the dwUserData parameter when calling PdhOpenQuery.
DwQueryUserData *uint32
//Null-terminated string that specifies the full counter path. The string follows this structure in memory.
SzFullPath *uint16 // pointer to a string
//Null-terminated string that contains the name of the computer specified in the counter path. Is NULL, if the path does not specify a computer.
//The string follows this structure in memory.
SzMachineName *uint16 // pointer to a string
//Null-terminated string that contains the name of the performance object specified in the counter path. The string follows this structure in memory.
SzObjectName *uint16 // pointer to a string
//Null-terminated string that contains the name of the object instance specified in the counter path. Is NULL, if the path does not specify an instance.
//The string follows this structure in memory.
SzInstanceName *uint16 // pointer to a string
//Null-terminated string that contains the name of the parent instance specified in the counter path. Is NULL, if the path does not specify a parent instance.
//The string follows this structure in memory.
SzParentInstance *uint16 // pointer to a string
//Instance index specified in the counter path. Is 0, if the path does not specify an instance index.
DwInstanceIndex uint32 // pointer to a string
//Null-terminated string that contains the counter name. The string follows this structure in memory.
SzCounterName *uint16 // pointer to a string
//Help text that describes the counter. Is NULL if the source is a log file.
SzExplainText *uint16 // pointer to a string
//Start of the string data that is appended to the structure.
DataBuffer [1]uint32 // pointer to an extra space
}