很抱歉这个问题很长。我只是想包括目前我所知道的关于这个问题的一切。
我正在使用Visual Studio 2008在C＃中创建一个Windows窗体程序，该程序调用用C ++编写的库
C ++ DLL分析测量数据，该数据由几个样本组成。样本通过函数（PDSetWaveSample）传递给库，该函数将结构作为参数
设置完所有样品后，测量数据将使用另一个函数（PDPreProcess）处理，该函数也将结构作为参数。
C ++ DLL将所有测量数据保存在其内部数据结构中，并进行所有处理以获得结果。
在程序开始处理测量数据之前，一切似乎都能正常运行。此时程序崩溃并退出此错误：
程序'XXX.vshost.exe：Managed'已退出，代码为-1073741819（0xc0000005）。
我将在本问题的后面添加一些调试信息和C＃源代码。
您是否有任何提示如何前进或可能导致这种情况？
我正在运行Windows XP Professional，版本2002 SP 3。
当程序崩溃时，它首先提供此错误消息
未知模块中出现未处理的“System.ExecutionEngineException”类型异常。
以及打破或继续的可能性。我选择休息。
之后我看看集会：
没有为任何调用堆栈帧加载符号。无法显示源代码。
根据调试器，发生错误的位置的程序集如下所示：
7C90E4FA call 7C90E528
7C90E4FF mov eax,dword ptr [esp]
7C90E502 mov esp,ebp
7C90E504 pop ebp
7C90E505 ret
7C90E506 lea esp,[esp]
7C90E50D lea ecx,[ecx]
7C90E510 mov edx,esp
7C90E512 sysenter
==>7C90E514 ret
7C90E515 lea esp,[esp]
7C90E51C lea esp,[esp]
7C90E520 lea edx,[esp+8]
7C90E524 int 2Eh
7C90E526 ret
7C90E527 nop
7C90E528 push ebp
7C90E529 mov ebp,esp
7C90E52B pushfd
执行在7C90E514 ret处停止（我标有==＆gt;）
输出窗口显示以下消息：
'CalculationForm.exe': Loaded 'C:\CalculationForm\CalculationForm\bin\Debug\CalculationForm.exe', No native symbols in symbol file.
'CalculationForm.exe': Loaded 'C:\WINNT\system32\ntdll.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\kernel32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\sysfer.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\mscoree.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\advapi32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\rpcrt4.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\secur32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\shlwapi.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\gdi32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\user32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\msvcrt.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\imm32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\Microsoft.NET\Framework\v2.0.50727\mscorwks.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\WinSxS\x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.4053_x-ww_e6967989\msvcr80.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\shell32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.6028_x-ww_61e65202\comctl32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\comctl32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\Microsoft.NET\Framework\v2.0.50727\Culture.dll'
'CalculationForm.exe': Unloaded 'C:\WINNT\Microsoft.NET\Framework\v2.0.50727\Culture.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\assembly\NativeImages_v2.0.50727_32\mscorlib\17179b71d7680399c00ce88ddc310209\mscorlib.ni.dll'
'CalculationForm.exe' (Managed): Loaded 'C:\WINNT\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CalculationForm.exe': Loaded 'C:\WINNT\system32\ole32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\MSCTF.dll'
'CalculationForm.exe' (Managed): Loaded 'C:\Tyohakemisto\WaveRoller\CalculationForm\CalculationForm\bin\Debug\CalculationForm.exe', Symbols loaded.
'CalculationForm.exe': Loaded 'C:\WINNT\Microsoft.NET\Framework\v2.0.50727\mscorjit.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\assembly\NativeImages_v2.0.50727_32\System\2f867d97fb1a34e4d6985780631574bb\System.ni.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\assembly\NativeImages_v2.0.50727_32\System.Drawing\f78f03ba3b1b21e3b26369402c117d33\System.Drawing.ni.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\assembly\NativeImages_v2.0.50727_32\System.Windows.Forms\06b728c1e4ea291d4febee5ca33db4b4\System.Windows.Forms.ni.dll'
'CalculationForm.exe' (Managed): Loaded 'C:\WINNT\assembly\GAC_MSIL\System.Windows.Forms\2.0.0.0__b77a5c561934e089\System.Windows.Forms.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CalculationForm.exe' (Managed): Loaded 'C:\WINNT\assembly\GAC_MSIL\System\2.0.0.0__b77a5c561934e089\System.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CalculationForm.exe' (Managed): Loaded 'C:\WINNT\assembly\GAC_MSIL\System.Drawing\2.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CalculationForm.exe': Loaded 'C:\WINNT\assembly\NativeImages_v2.0.50727_32\System.Configuration\b2f3e4c45a980474c2dd08166038d645\System.Configuration.ni.dll'
'CalculationForm.exe' (Managed): Loaded 'C:\WINNT\assembly\GAC_MSIL\System.Configuration\2.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CalculationForm.exe': Loaded 'C:\WINNT\assembly\NativeImages_v2.0.50727_32\System.Xml\8ee82dfeff03ca87492149cdcbfc3f21\System.Xml.ni.dll'
'CalculationForm.exe' (Managed): Loaded 'C:\WINNT\assembly\GAC_MSIL\System.Xml\2.0.0.0__b77a5c561934e089\System.Xml.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CalculationForm.exe': Loaded 'ImageAtBase0x10000000'
'CalculationForm.exe': Unloaded 'ImageAtBase0x10000000'
'CalculationForm.exe': Loaded 'C:\WINNT\assembly\GAC_MSIL\Microsoft.VisualStudio.Debugger.Runtime\9.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Debugger.Runtime.dll'
'CalculationForm.exe' (Managed): Loaded 'C:\WINNT\assembly\GAC_MSIL\Microsoft.VisualStudio.Debugger.Runtime\9.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Debugger.Runtime.dll'
'CalculationForm.exe': Loaded 'C:\Program Files\Microsoft Visual Studio 9.0\Common7\Packages\Debugger\x86\Microsoft.VisualStudio.Debugger.Runtime.Impl.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\WinSxS\x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.30729.4148_x-ww_d495ac4e\msvcr90.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\uxtheme.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\xpsp2res.dll', Binary was not built with debug information.
'CalculationForm.exe' (Managed): Loaded 'C:\CalculationForm\CalculationForm\bin\Debug\AxInterop.PDCOMMXLib.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\WinSxS\x86_Microsoft.Windows.GdiPlus_6595b64144ccf1df_1.0.6002.22509_x-ww_c7dad023\GdiPlus.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\version.dll'
'CalculationForm.exe': Unloaded 'C:\WINNT\system32\version.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\MSCTFIME.IME'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\oleaut32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\Microsoft.NET\Framework\v2.0.50727\diasymreader.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\clbcatq.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\comres.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\version.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\msi.dll'
'CalculationForm.exe': Loaded 'C:\Nortek\PdCommX\PdCommX.dll', Binary was not built with debug information.
'CalculationForm.exe': Loaded 'C:\WINNT\system32\mfc100.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\msvcr100.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\msimg32.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\msvcp100.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\system32\sxs.dll'
'CalculationForm.exe' (Managed): Loaded 'C:\ CalculationForm\CalculationForm\bin\Debug\Interop.PDCOMMXLib.dll'
'CalculationForm.exe': Loaded 'C:\WINNT\assembly\NativeImages_v2.0.50727_32\Accessibility\775f9f0da40c277eb7d460084858a2ac\Accessibility.ni.dll'
'CalculationForm.exe' (Managed): Loaded 'C:\WINNT\assembly\GAC_MSIL\Accessibility\2.0.0.0__b03f5f7f11d50a3a\Accessibility.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
The thread 'Win32 Thread' (0x1f08) has exited with code 0 (0x0).
The thread 'Win32 Thread' (0x1cc4) has exited with code 0 (0x0).
The thread 'Win32 Thread' (0x1598) has exited with code 0 (0x0).
The thread 'Win32 Thread' (0xaa8) has exited with code 0 (0x0).
The thread 'Win32 Thread' (0x1db8) has exited with code 0 (0x0).
The thread 'Win32 Thread' (0x1e74) has exited with code 0 (0x0).
The thread 'Win32 Thread' (0x1958) has exited with code 0 (0x0).
The program '[4656] CalculationForm.exe: Managed' has exited with code 0 (0x0).
The program '[4656] CalculationForm.exe: Native' has exited with code 0 (0x0).
程序结束时，调用堆栈为：
ntdll.dll!7c90e514()
[Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll]
ntdll.dll!7c90df5a()
kernel32.dll!7c8025db()
mscorwks.dll!79e8c639()
mscorwks.dll!79e8c56f()
mscorwks.dll!79f7466d()
mscorwks.dll!7a105cf1()
mscorwks.dll!7a105e37()
mscorwks.dll!7a1061db()
mscorwks.dll!7a09c314()
mscorwks.dll!79f504da()
mscorwks.dll!79ef4755()
ntdll.dll!7c9032a8()
ntdll.dll!7c90327a()
ntdll.dll!7c92a8c3()
ntdll.dll!7c90e48a()
ntdll.dll!7c94b721()
ntdll.dll!7c919f68()
ntdll.dll!7c919f68()
ntdll.dll!7c919f68()
ntdll.dll!7c919f68()
ntdll.dll!7c910385()
ntdll.dll!7c917c51()
ntdll.dll!7c917e8f()
mscorwks.dll!79e71b4c()
mscorwks.dll!79e821f9()
mscorwks.dll!79e96571()
mscorwks.dll!79e965a4()
mscorwks.dll!79e965c2()
mscorwks.dll!79ecca87()
mscorwks.dll!79ef531b()
mscorwks.dll!79ef6dd8()
mscorwks.dll!79ef6e76()
mscorwks.dll!79ef4755()
ntdll.dll!7c9032a8()
ntdll.dll!7c90327a()
ntdll.dll!7c92a8c3()
ntdll.dll!7c90e48a()
ntdll.dll!7c917ca7()
ntdll.dll!7c917e8f()
mscorwks.dll!7a0ecb29()
mscorwks.dll!79f6879a()
mscorwks.dll!79f68780()
mscorwks.dll!79f73f3d()
mscorwks.dll!79ecd659()
mscorwks.dll!79e71b4c()
mscorwks.dll!79e821f9()
mscorwks.dll!79e96571()
mscorwks.dll!79e965a4()
mscorwks.dll!79e965c2()
mscorwks.dll!79f87ad3()
mscorwks.dll!79f87c32()
mscorlib.ni.dll!792d5428()
mscorlib.ni.dll!792d51d6()
mscorlib.ni.dll!792d50be()
mscorwks.dll!79e71b4c()
mscorwks.dll!79e821f9()
mscorwks.dll!79e96571()
mscorwks.dll!79e965a4()
mscorwks.dll!79f29e09()
mscorwks.dll!79f2a1e0()
mscorwks.dll!79f2a130()
mscorwks.dll!79f29837()
mscorwks.dll!79f298bc()
mscorwks.dll!79f29967()
System.ni.dll!7a574b73()
System.Windows.Forms.ni.dll!7b1c87be()
mscorwks.dll!79e71b4c()
mscorwks.dll!79e821f9()
System.Windows.Forms.ni.dll!7b1c86a0()
System.Windows.Forms.ni.dll!7b1c8621()
System.Windows.Forms.ni.dll!7b6fa167()
mscorwks.dll!79e71b4c()
mscorwks.dll!79e821f9()
mscorwks.dll!79fc1fe2()
mscorwks.dll!79fc219a()
mscorwks.dll!79fc22be()
mscorwks.dll!79f077ad()
mscorwks.dll!79e8c4ec()
mscorwks.dll!79e8840b()
mscorwks.dll!79f13cb5()
mscorwks.dll!79f1129c()
mscorwks.dll!79f07e17()
mscoree.dll!7900b77b()
mscoree.dll!7900b73d()
mscoree.dll!79004de3()
kernel32.dll!7c817077()
我为C ++ DLL创建了一个包装类。包装类基于库的头文件：
#ifndef _PDWAVEAPI_H__
#define _PDWAVEAPI_H__
#ifdef PDWAVE_EXPORTS
#define PDWAVE_API __declspec(dllexport)
#else
#define PDWAVE_API __declspec(dllimport)
#endif
typedef struct {
bool bValid;
float fPressure;
float fDistance;
float fVel[4];
unsigned short nAmp[4];
} PDWaveSample;
typedef struct {
float fST[4096];
float fWinFloor;
float fWinCeil;
bool bUseWindow;
bool bSTOk;
bool bGetRawAST;
bool bValidBurst;
} PDWaveBurst;
PDWAVE_API int __stdcall PDSetWaveSample(PDWaveSample *pWaveSample);
PDWAVE_API int __stdcall PDPreProcess(int nSample, PDWaveBurst *pWaveBurst);
和C＃包装类是：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices; // DllImport
namespace Cpp_LibraryApi
{
[StructLayout(LayoutKind.Sequential)]
public struct PDWaveSample
{
public bool bValid;
public float fPressure;
public float fDistance;
public float[] fVel;
public ushort[] nAmp
// Constructor to initialize tables
public static PDWaveSample Create()
{
PDWaveSample DataStruct = new PDWaveSample();
DataStruct.fVel = new float[4];
DataStruct.nAmp = new ushort[4];
return DataStruct;
}
}
[StructLayout(LayoutKind.Sequential)]
public struct PDWaveBurst {
public float[] fST;
public float fWinFloor;
public float fWinCeil;
public bool bUseWindow;
public bool bSTOk;
public bool bGetRawAST;
public bool bValidBurst;
public static PDWaveBurst Create()
{
PDWaveBurst DataStruct = new PDWaveBurst();
DataStruct.fST = new float[Constants.PD_MAX_WAVEMEAS_AST];
return DataStruct;
}
}
public class Cpp_LibraryWrapper
{
[DllImport("cpp_library.dll")]
public static extern int PDSetWaveSample(ref PDWaveSample pWaveSample);
[DllImport("cpp_library.dll")]
public static extern int PDPreProcess(int nSample, ref PDWaveBurst pWaveBurst);
}
}
Windows窗体应用程序以下列方式使用这些功能：
我已经简化了一点功能。实际上，使用第三方ActiveX组件从串行线读取测量值。
using System;
using System.Configuration;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;
using System.Timers;
using System.Diagnostics;
namespace CalculationForm
{
public partial class frmCalculationForm : Form
{
int nBurstSamples = 0;
public frmCalculationForm()
{
InitializeComponent();
}
private void OnNewData_Event(object sender, Events_OnNewDataEvent e)
{
try
{
Cpp_LibraryApi.PDWaveSample WaveSampleData = Cpp_LibraryApi.PDWaveSample.Create();
ReadWaveSample(ref WaveSampleData);
SetWaveSample(WaveSampleData);
if (++nBurstSamples > 512)
{
// Process
ProcessBurstData(nBurstSamples);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message.ToString());
}
}
public void ReadWaveSample(ref Cpp_LibraryApi.PDWaveSample WaveSampleData)
{
float[] dVel = new float[4] { (float)-3.26, (float)-2.808, (float)-3.651, (float)-3.43 };
ushort[] usAmp = new ushort[4] { 41, 40, 0, 0 };
WaveSampleData.bValid = true;
WaveSampleData.fPressure = 12.432;
WaveSampleData.fDistance = 2.64;
WaveSampleData.fVel = dVel;
WaveSampleData.nAmp = usAmp;
}
public void SetWaveSample(Cpp_LibraryApi.PDWaveSample WaveSampleData)
{
Cpp_LibraryWrapper.PDSetWaveSample(ref WaveSampleData);
}
public void ProcessBurstData(int nSamples)
{
try
{
Cpp_LibraryApi.PDWaveBurst WaveBurstData = Cpp_LibraryApi.PDWaveBurst.Create();
WaveBurstData.fST = new float[4096];
WaveBurstData.fWinFloor = (float)1.25;
WaveBurstData.fWinCeil = 2;
WaveBurstData.bUseWindow = false;
WaveBurstData.bSTOk = false;
WaveBurstData.bGetRawAST = false;
WaveBurstData.bValidBurst = false;
Cpp_LibraryWrapper.PDPreProcess(nSamples, ref WaveBurstData);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message.ToString());
}
}
}
}
在程序到达测量处理阶段之前，一切似乎都很顺利。当
Cpp_LibraryWrapper.PDPreProcess(nSamples, ref WaveBurstData);
，执行因此错误而停止：
程序'XXX.vshost.exe：Managed'已退出，代码为-1073741819（0xc0000005）。
我已经设置了这些调试选项：
答案 0 :(得分：6)
您的结构被错误地编组，因为您没有正确地声明数组。你需要告诉编组人员他们是固定长度的数组。
修改
在我原来的回答中，我错过了bool成员未正确编组的附加错误。默认编组是针对4字节Windows BOOL，但您需要1个字节的C ++ bool。下面的代码现在可以正确处理。对不起，感到困惑。
public struct PDWaveSample
{
[MarshalAs(UnmanagedType.I1)]
public bool bValid;
public float fPressure;
public float fDistance;
[MarshalAs(UnmanagedType.LPArray, SizeConst=4)]
public float[] fVel;
[MarshalAs(UnmanagedType.LPArray, SizeConst=4)]
public ushort[] nAmp
}
public struct PDWaveBurst {
[MarshalAs(UnmanagedType.LPArray, SizeConst=4096)]
public float[] fST;
public float fWinFloor;
public float fWinCeil;
[MarshalAs(UnmanagedType.I1)]
public bool bUseWindow;
[MarshalAs(UnmanagedType.I1)]
public bool bSTOk;
[MarshalAs(UnmanagedType.I1)]
public bool bGetRawAST;
[MarshalAs(UnmanagedType.I1)]
public bool bValidBurst;
}
答案 1 :(得分：1)
实际上，我不得不将数组编组为ByValArray。否则，运行环境会引起抱怨：
“CalculationForm.exe中出现'System.TypeLoadException'类型的第一次机会异常
其他信息：无法编组'PdWaveApi.PDWaveSample'类型的字段'fVel'：无效的托管/非托管类型组合（数组字段必须与ByValArray或SafeArray配对）。“
所以，我把结构改为：
public struct PDWaveSample
{
[MarshalAs(UnmanagedType.I1)]
public bool bValid;
public float fPressure;
public float fDistance;
[MarshalAs(UnmanagedType.ByValArray, SizeConst=4)]
public float[] fVel;
[MarshalAs(UnmanagedType.ByValArray, SizeConst=4)]
public ushort[] nAmp
}
public struct PDWaveBurst {
[MarshalAs(UnmanagedType.ByValArray, SizeConst=4096)]
public float[] fST;
public float fWinFloor;
public float fWinCeil;
[MarshalAs(UnmanagedType.I1)]
public bool bUseWindow;
[MarshalAs(UnmanagedType.I1)]
public bool bSTOk;
[MarshalAs(UnmanagedType.I1)]
public bool bGetRawAST;
[MarshalAs(UnmanagedType.I1)]
public bool bValidBurst;
}