“运行时检查失败＃0 - ESP的值在功能调用中没有被正确保存”从GameSpy lib的C ++代码成功的C＃回调之后

问题描述

我正在制作一个使用GameSpy C代码（GP部分）的C＃应用​​程序。 C代码成功地调用回调（这是C＃代码），但是在回调完成之后，我收到这个错误运行时检查失败＃0 - 在函数调用中ESP的值没有正确保存。我从C代码中创建了一个DLL，如下所示：

  
 // GPCallback 
 ///////////// 
 __declspec（dllexport）typedef void（* GPCallback）（
 GPConnection * connection，
 void * arg，
 void * param 
）; 
 
 // gpConnect 
 //////////// 
 __declspec（dllexport）GPResult gpConnect 
（
 GPConnection * connection， 
 const gsi_char nick [GP_NICK_LEN]，
 const gsi_char电子邮件[GP_EMAIL_LEN]，
 const gsi_char密码[GP_PASSWORD_LEN]，
 GPEnum防火墙，
 GPEnum阻止，
 GPCallback回调，
 void * param 
）; 
  

C＃正在这样调用：

  
不安全的public delegate void GPCallback（
 GPConnection * connection，
 // GPConnectResponseArg arg，
 IntPtr arg，
 IntPtr param 
）; 
 
 [DllImport（saketestd.dll）] 
不安全的静态外部GPResult gpConnect（
 GPConnection *连接，
 gsi_char nick，
 gsi_char电子邮件， 
 gsi_char密码，
 GPEnum防火墙，
 GPEnum阻止，
 GPCallback回调，
 IntPtr param 
）; 
不安全的public bool gpConnectE（）{
 bool ret = false; 
 try {
 GPResult res; 
 debug.AddLine（this.getMethodName（）+：+connection before connect：+ connection.ToString（x））; 
 fixed（int * pconn =&connection）{
 res = gpConnect（
 pconn，
 this.NICK，
 this.EMAIL，
 this.PASSWORD ，
 GPEnum.GP_NO_FIREWALL，
 GPEnum.GP_BLOCKING，
 new GPCallback（this.ConnectResponse），
 IntPtr.Zero 
）; 
} 
 debug.AddLine（this.getMethodName（）+：+连接后连接：+ connection.ToString（x））; 
 if（res！= GPResult.GP_NO_ERROR）{
 debug.AddLine（this.getMethodName（）+：+failed：+ res）; 
} else {
 debug.AddLine（this.getMethodName（）+：+OK）; 
 ret = true; 
} 
} catch（Exception ex）{
 debug.Text + = ex.ToString（）; 
} 
 return ret; 
} 
 
不安全public void ConnectResponse（
 GPConnection * connection，
 // GPConnectResponseArg arg，
 IntPtr argPtr，
 IntPtr param 
）{
 debug.AddLine（this.getMethodName（）+用连接调用：+（* connection）.ToString（x））; 
 GPConnectResponseArg arg; 
 arg =（GPConnectResponseArg）Marshal.PtrToStructure（argPtr，typeof（GPConnectResponseArg））; 
 if（arg.result == GPResult.GP_NO_ERROR）{
 debug.AddLine（this.getMethodName（）+：Connected to GP）; 
 this.profileid = arg.profile; 
} else {
 debug.AddLine（this.getMethodName（）+：failed）; 
 debug.AddLine（this.getMethodName（）+：result：+ arg.result）; 
 debug.AddLine（this.getMethodName（）+：profile：+ arg.profile）; 
 debug.AddLine（this.getMethodName（）+：uniquenick：+ arg.uniquenick）; 
} 
} 
  

我相信我需要清除我的回调或更改DLL中的调用约定（可能吗？）。任何其他想法？

解决方案

检查您正在使用的呼叫惯例。

  [UnmanagedFunctionPointer（CallingConvention.Cdecl）] 
  

其他相关问题：

I'm making a C# application which is using GameSpy C code (the GP part). The C code is calling a callback (which is C# code) succesfully, but I get this error "Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call" right after the callback is done. I've made a DLL out of C code, BTW like this:

    // GPCallback
    /////////////
    __declspec(dllexport) typedef void (* GPCallback)(
      GPConnection * connection,
      void * arg,
      void * param
    );

    // gpConnect
    ////////////
    __declspec(dllexport) GPResult gpConnect
    (
      GPConnection * connection,
      const gsi_char nick[GP_NICK_LEN],
      const gsi_char email[GP_EMAIL_LEN],
      const gsi_char password[GP_PASSWORD_LEN],
      GPEnum firewall,
      GPEnum blocking,
      GPCallback callback,
      void * param
    );

C# is calling it like this:

   unsafe public delegate void GPCallback(
   GPConnection * connection,
   //GPConnectResponseArg arg,
   IntPtr arg,
   IntPtr param
  );

  [DllImport("saketestd.dll")]
  unsafe static extern GPResult gpConnect(
   GPConnection * connection,
   gsi_char nick,
   gsi_char email,
   gsi_char password,
   GPEnum firewall,
   GPEnum blocking,
   GPCallback callback,
   IntPtr param
  );
  unsafe public bool gpConnectE() {
   bool ret = false;
   try {
    GPResult res;
    debug.AddLine(this.getMethodName() + ": " + "connection before connect: " + connection.ToString("x"));
    fixed (int* pconn = &connection) {
     res = gpConnect(
      pconn,
      this.NICK,
      this.EMAIL,
      this.PASSWORD,
      GPEnum.GP_NO_FIREWALL,
      GPEnum.GP_BLOCKING,
      new GPCallback(this.ConnectResponse),
      IntPtr.Zero
     );
    }
    debug.AddLine(this.getMethodName() + ": " + "connection after connect: " + connection.ToString("x"));
    if (res != GPResult.GP_NO_ERROR) {
     debug.AddLine(this.getMethodName() + ": " + "failed: " + res);
    } else {
     debug.AddLine(this.getMethodName() + ": " + "OK");
     ret = true;
    }
   } catch (Exception ex) {
    debug.Text += ex.ToString();
   }
   return ret;
  }

  unsafe public void ConnectResponse(
   GPConnection * connection,
   //GPConnectResponseArg arg,
   IntPtr argPtr,
   IntPtr param
  ) {
   debug.AddLine(this.getMethodName() + " called with connection: " + (*connection).ToString("x"));
   GPConnectResponseArg arg;
   arg = (GPConnectResponseArg)Marshal.PtrToStructure(argPtr, typeof(GPConnectResponseArg));
   if (arg.result == GPResult.GP_NO_ERROR) {
    debug.AddLine(this.getMethodName() + ": Connected to GP");
    this.profileid = arg.profile;
   } else {
    debug.AddLine(this.getMethodName() + ": failed");
    debug.AddLine(this.getMethodName() + ": result: " + arg.result);
    debug.AddLine(this.getMethodName() + ": profile: " + arg.profile);
    debug.AddLine(this.getMethodName() + ": uniquenick: " + arg.uniquenick);
   }
  }

I believe that I need to clear the stack in my callback or change the calling convention in the DLL (is that possible?). Any other ideas?

解决方案

Check the calling conventions you are using.

 [UnmanagedFunctionPointer(CallingConvention.Cdecl)]

Reference to other related question: Callback from C function - crash

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