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using System;

using System.Collections.Generic;

using System.Linq;

using System.Runtime.InteropServices;

using System.Text;

namespace QuantBox.XAPI

{

public class SoInvoke : InvokeBase

{

[DllImport("libdl.so")]

private extern static IntPtr dlopen(string path, int mode);

[DllImport("libdl.so")]

private extern static IntPtr dlsym(IntPtr handle, string symbol);

[DllImport("libdl.so")]

private extern static IntPtr dlerror();

[DllImport("libdl.so")]

private extern static int dlclose(IntPtr handle);

public SoInvoke(string DLLPath)

{

hLib = dlopen(DLLPath, 1);

if (hLib == IntPtr.Zero)

{

IntPtr errptr = dlerror();

string error = Marshal.PtrToStringAnsi(errptr);

throw new Exception(error);

}

}

~SoInvoke()

{

Dispose();

}

//将要执行的函数转换为委托

public override Delegate Invoke(String APIName, Type t)

{

if (hLib == IntPtr.Zero)

return (Delegate)null;

IntPtr api = dlsym(hLib, APIName);

return (Delegate)Marshal.GetDelegateForFunctionPointer(api, t);

}

public override void Dispose()

{

if (hLib != IntPtr.Zero)

dlclose(hLib);

hLib = IntPtr.Zero;

}

}

}