101 lines
2.7 KiB
C#
101 lines
2.7 KiB
C#
using System;
|
|
using System.Runtime.InteropServices;
|
|
|
|
class FuncLoader
|
|
{
|
|
private class Windows
|
|
{
|
|
[DllImport("kernel32", CharSet = CharSet.Ansi, ExactSpelling = true, SetLastError = true)]
|
|
public static extern IntPtr GetProcAddress(IntPtr hModule, string procName);
|
|
|
|
[DllImport("kernel32", SetLastError = true, CharSet = CharSet.Unicode)]
|
|
public static extern IntPtr LoadLibraryW(string lpszLib);
|
|
}
|
|
|
|
private class Linux
|
|
{
|
|
[DllImport("libdl.so.2")]
|
|
public static extern IntPtr dlopen(string path, int flags);
|
|
|
|
[DllImport("libdl.so.2")]
|
|
public static extern IntPtr dlsym(IntPtr handle, string symbol);
|
|
}
|
|
|
|
private class OSX
|
|
{
|
|
[DllImport("/usr/lib/libSystem.dylib")]
|
|
public static extern IntPtr dlopen(string path, int flags);
|
|
|
|
[DllImport("/usr/lib/libSystem.dylib")]
|
|
public static extern IntPtr dlsym(IntPtr handle, string symbol);
|
|
}
|
|
|
|
[DllImport("libc")]
|
|
private static extern int uname(IntPtr buf);
|
|
|
|
private const int RTLD_LAZY = 0x0001;
|
|
private const int RTLD_GLOBAL = 0x0100;
|
|
|
|
public static bool IsWindows, IsOSX;
|
|
|
|
static FuncLoader()
|
|
{
|
|
switch (Environment.OSVersion.Platform)
|
|
{
|
|
case PlatformID.Win32NT:
|
|
case PlatformID.Win32S:
|
|
case PlatformID.Win32Windows:
|
|
case PlatformID.WinCE:
|
|
IsWindows = true;
|
|
break;
|
|
case PlatformID.MacOSX:
|
|
IsOSX = true;
|
|
break;
|
|
case PlatformID.Unix:
|
|
try
|
|
{
|
|
var buf = Marshal.AllocHGlobal(8192);
|
|
if (uname(buf) == 0 && Marshal.PtrToStringAnsi(buf) == "Darwin")
|
|
IsOSX = true;
|
|
|
|
Marshal.FreeHGlobal(buf);
|
|
}
|
|
catch { }
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
public static IntPtr LoadLibrary(string libname)
|
|
{
|
|
if (IsWindows)
|
|
return Windows.LoadLibraryW(libname);
|
|
|
|
if (IsOSX)
|
|
return OSX.dlopen(libname, RTLD_GLOBAL | RTLD_LAZY);
|
|
|
|
return Linux.dlopen(libname, RTLD_GLOBAL | RTLD_LAZY);
|
|
}
|
|
|
|
public static IntPtr GetProcAddress(IntPtr library, string function)
|
|
{
|
|
var ret = IntPtr.Zero;
|
|
|
|
if (IsWindows)
|
|
ret = Windows.GetProcAddress(library, function);
|
|
else if (IsOSX)
|
|
ret = OSX.dlsym(library, function);
|
|
else
|
|
ret = Linux.dlsym(library, function);
|
|
|
|
return ret;
|
|
}
|
|
|
|
public static T LoadFunction<T>(IntPtr procaddress)
|
|
{
|
|
if (procaddress == IntPtr.Zero)
|
|
return default(T);
|
|
|
|
return Marshal.GetDelegateForFunctionPointer<T>(procaddress);
|
|
}
|
|
}
|