“运行时检查失败＃0-ESP的值未在函数调用中正确保存”。从C ++代码成功执行C＃回调后 [英] "Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call" after successful C# callback from the C++ code

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代码成功调用了回调（即C＃代码），但出现此错误运行时检查失败＃0-在函数调用中未正确保存ESP的值回调完成后。我已经用C代码制作了一个DLL，像这样：

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, 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＃这样称呼它：

   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);
   }
  }

我认为我需要清除堆栈中的内容回调或更改DLL中的调用约定（可能吗？）。还有其他想法吗？

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?

推荐答案

检查您使用的呼叫约定。

Check the calling conventions you are using.

 [UnmanagedFunctionPointer(CallingConvention.Cdecl)]

参考其他相关问题：从C函数进行回调-崩溃

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