导致堆栈溢出的非托管回调

我正在使用c#处理非托管资源。该资源公开了一个回调，可以为硬件中可能发生的某些事件设置该回调。为了获得对非托管函数的访问权限，我做了以下操作:

[DllImportAttribute("testDLL.dll", EntryPoint = "InstallCallback")]
public static extern short InstallCallback(uint handle, byte x, byte y, IntFuncPtr ptr);
[UnmanagedFunctionPointer(CallingConvention.StdCall)]
public delegate void IntFuncPtr(uint handle, byte x, byte y, LogEntry info);

我首先使用对IntFuncPtr委托之后的方法的引用来安装回调。然后让硬件去做它自己的事情。大约调用4700次回调之后，应用程序崩溃了。如果我用c/c++编写代码，回调工作得很好，但是我可以通过从回调函数中删除__stdcall来复制它。在c#中，我无法捕捉到指示应用程序在非托管资源中死亡的错误。在c/c++应用程序中，我可以看到没有__stdcall的堆栈溢出。

我认为委托可能无法与调用约定stdcall一起工作，所以我尝试了以下操作:

[DllImportAttribute("testDLL.dll", EntryPoint = "InstallCallback")]
public static extern short InstallCallback(uint handle, byte x, byte y, IntPtr ptr);
public delegate void IntFuncPtr(uint handle, byte x, byte y, LogEntry info);
var callBackDelegate = new IntFuncPtr(Callback);
var callBackPtr = Marshal.GetFunctionPointerForDelegate(callBackDelegate);
InstallCallback(handle, 1, 1, callBackPtr);

总结一下，我有一个非托管回调，它需要一个指向定义为__stdcall的函数的函数指针。如果函数指针指向非__stdcall函数，则堆栈增长并溢出。我试图在c#中使用DllImport和具有stdcall调用约定的UnmanagedFunctionPointer委托使用回调。当我这样做时，c#应用程序的行为就像使用非__stdcall函数的C/c++应用程序。

我怎么能让它完全在c#中工作?

这是本机方法定义&结构信息，包括c#结构信息。

extern "C" __declspec( dllexport ) short __stdcall InstallCallback(unsigned int handle, unsigned char x, unsigned char y, LOG_ENTRY info );
typedef union
{
    unsigned int ul_All;
    struct
    {
    unsigned int ul_Info:24;
    unsigned int uc_IntType:8;
    }t;
    struct
    {
    unsigned int ul_Info:24;
    unsigned int uc_Biu1:1;
    unsigned int uc_Biu2:1;
    unsigned int uc_Dma:1;
    unsigned int uc_Target:1;
    unsigned int uc_Cmd:1;
    unsigned int uc_Biu3:1;
    unsigned int uc_Biu4:1;
    unsigned int res:1;
    }b;
} LOG_ENTRY_C;
typedef union
{
    unsigned int All;
    struct
    {
    AiUInt32 Index:16;
    AiUInt32 Res:8;
    AiUInt32 IntSrc:8;
    }t;
} LOG_ENTRY_D;
typedef struct log_entry
{
    unsigned int a;
    unsigned int b;
    LOG_ENTRY_C c;
    LOG_ENTRY_D d;
} LOG_ENTRY;
[StructLayoutAttribute(LayoutKind.Sequential)]
public struct LogEntry {
    public uint Lla;
    public uint Llb;
    public LogEntryC Llc;
    public LogEntryD Lld;
}
[StructLayoutAttribute(LayoutKind.Explicit)]
public struct LogEntryC {
    [FieldOffsetAttribute(0)]
    public uint All;
    [FieldOffsetAttribute(0)]
    public LogEntryCT t;
    [FieldOffsetAttribute(0)]
    public LogEntryCB b;
}
[StructLayoutAttribute(LayoutKind.Explicit)]
public struct LogEntryD {
    [FieldOffsetAttribute(0)]
    public uint All;
    [FieldOffsetAttribute(0)]
    public LogEntryDT t;
}
[StructLayoutAttribute(LayoutKind.Sequential)]
public struct LogEntryCT {
    public uint bitvector1;
    public uint IntType {
        get { return ((uint)((this.bitvector1 & 255u))); }
        set { this.bitvector1 = ((uint)((value | this.bitvector1))); }
    }
    public uint Info {
        get { return ((uint)(((this.bitvector1 & 4294967040u) / 256))); }
        set { this.bitvector1 = ((uint)(((value * 256) | this.bitvector1))); }
    }
}
[StructLayoutAttribute(LayoutKind.Sequential)]
public struct LogEntryCB {
    public uint bitvector1;
    public uint res {
        get { return ((uint)((this.bitvector1 & 1u))); }
        set { this.bitvector1 = ((uint)((value | this.bitvector1))); }
    }
    public uint Biu4 {
        get { return ((uint)(((this.bitvector1 & 2u) / 2))); }
        set { this.bitvector1 = ((uint)(((value * 2) | this.bitvector1))); }
    }
    public uint Biu3 {
        get { return ((uint)(((this.bitvector1 & 4u) / 4))); }
        set { this.bitvector1 = ((uint)(((value * 4) | this.bitvector1))); }
    }
    public uint Cmd {
        get { return ((uint)(((this.bitvector1 & 8u) / 8))); }
        set { this.bitvector1 = ((uint)(((value * 8) | this.bitvector1))); }
    }
    public uint Target {
        get { return ((uint)(((this.bitvector1 & 16u) / 16))); }
        set { this.bitvector1 = ((uint)(((value * 16) | this.bitvector1))); }
    }
    public uint Dma {
        get { return ((uint)(((this.bitvector1 & 32u) / 32))); }
        set { this.bitvector1 = ((uint)(((value * 32) | this.bitvector1))); }
    }
    public uint Biu2 {
        get { return ((uint)(((this.bitvector1 & 64u) / 64))); }
        set { this.bitvector1 = ((uint)(((value * 64) | this.bitvector1))); }
    }
    public uint Biu1 {
        get { return ((uint)(((this.bitvector1 & 128u) / 128))); }
        set { this.bitvector1 = ((uint)(((value * 128) | this.bitvector1))); }
    }
    public uint Info {
        get { return ((uint)(((this.bitvector1 & 4294967040u) / 256))); }
        set { this.bitvector1 = ((uint)(((value * 256) | this.bitvector1))); }
    }
}
[StructLayoutAttribute(LayoutKind.Sequential)]
public struct LogEntryDT {
    public uint bitvector1;
    public uint IntSrc {
        get { return ((uint)((this.bitvector1 & 255u))); }
        set { this.bitvector1 = ((uint)((value | this.bitvector1))); }
    }
    public uint Res {
        get { return ((uint)(((this.bitvector1 & 65280u) / 256))); }
        set { this.bitvector1 = ((uint)(((value * 256) | this.bitvector1))); }
    }
    public uint Index {
        get { return ((uint)(((this.bitvector1 & 4294901760u) / 65536))); }
        set { this.bitvector1 = ((uint)(((value * 65536) | this.bitvector1))); }
    }
}