添加计数器时Perflib 2崩溃（来自Perfmon） [英] Perflib 2 crashes when adding a counter (from Perfmon)

问题描述

我有一个C ++应用程序（在Win32下），我需要提供性能计数器信息。我使用Perflib v2，所以创建了一个由CTRPP处理的清单。

我的提供者然后调用PerfAutoInitialize和PerfCreateInstance没有错误。

当我去添加计数器在Perfmon ，我的应用程序崩溃。通过反汇编进行跟踪显示了perflib工作线程中调用内部函数（pcwum.dll）PerfpAddOrRemoveCounter的代码。这调用PerfpValidateCounter，它返回一个地址edi;此地址无效，当调用者解除引用时，应用程序崩溃。

如果我重新启动提供程序，计数器在Perfmon中仍然可见，

清单如下

 < instrumentationManifest xsi：schemaLocation =http：// schemas .microsoft.com / win / 2004/08 / events eventman.xsd
 xmlns：win =http://manifests.microsoft.com/win/2004/08/windows/events
 xmlns ：xsi =http://www.w3.org/2001/XMLSchema-instance
 xmlns：xs =http://www.w3.org/2001/XMLSchema
 xmlns：trace =http://schemas.microsoft.com/win/2004/08/events/trace> 
< instrumentation> 
< counters xmlns =http://schemas.microsoft.com/win/2005/12/counters> 
< provider callback =custom
 applicationIdentity =TPerfStatsCollector.exe
 providerName =TPerfstatscollector
 providerType =userMode
 providerGuid ={33d68436 -4cf9-4f58-9976-44b048b072f3}
 symbol =symbolGUID> 
< counterSet guid ={381300a5-3be6-46d8-8615-12d8b259aae4}
 uri =A.AxPServer.Counters.Basic
 name =基本计数器
 description =这些是样本计数器
 instances =Single
 symbol =setGUID> 
< counter id =1
 uri =A.AxPServer.Counters.Basic.Session
 name =Sessions
 description =会话数
 type =perf_counter_rawcount
 detailLevel =standard
 defaultScale =1> 
< / counter> 
< / counterSet> 
< / provider> 
< / counters> 
< / instrumentation> 
< / instrumentationManifest> 
  

解决方案

这是一个64/32位的问题，我意识到，我正在构建一个32位提供程序运行在64位操作系统。所有工作正常，当这被矫直了。

I have a C++ application (under Win32) for which I need to provide performance counter information. I'm using Perflib v2, so have created a manifest which is processed by CTRPP.

My provider then calls PerfAutoInitialize and PerfCreateInstance with no errors.

When I go to add the counter in Perfmon, my application crashes. Tracing through the disassembly shows the code in the perflib worker thread calling the internal function (pcwum.dll) PerfpAddOrRemoveCounter. This calls on to PerfpValidateCounter which returns an address in edi; this address is invalid and when caller dereferences it, the application crashes.

If I restart my provider, the counter is still visible in Perfmon and increments correctly.

Manifest follows

<instrumentationManifest xsi:schemaLocation="http://schemas.microsoft.com/win/2004/08/events eventman.xsd"
     xmlns:win="http://manifests.microsoft.com/win/2004/08/windows/events"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:xs="http://www.w3.org/2001/XMLSchema"
     xmlns:trace="http://schemas.microsoft.com/win/2004/08/events/trace">
  <instrumentation>
    <counters xmlns="http://schemas.microsoft.com/win/2005/12/counters">
      <provider callback = "custom"
        applicationIdentity = "TPerfStatsCollector.exe"
            providerName = "TPerfstatscollector"
        providerType = "userMode"
        providerGuid = "{33d68436-4cf9-4f58-9976-44b048b072f3}"
        symbol = "symbolGUID">
        <counterSet guid = "{381300a5-3be6-46d8-8615-12d8b259aae4}"
          uri = "A.AxPServer.Counters.Basic"
          name = "Basic counters"
          description = "These are the sample counters"
          instances = "Single"
          symbol = "setGUID">
          <counter id = "1"
            uri = "A.AxPServer.Counters.Basic.Session"
            name = "Sessions"
            description = "Number of sessions"
            type = "perf_counter_rawcount"
            detailLevel = "standard"
            defaultScale = "1">            
          </counter>
        </counterSet>
      </provider>
   </counters>
  </instrumentation>
</instrumentationManifest>

解决方案

My bad. This was a 64/32 bit issue and I realised that I was building a 32 bit provider to run on a 64 bit OS. All works fine when this was straightened out.

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