no more submodule

2024-09-15 22:40:48 +02:00
parent df3b8a3135
commit 0234b33671
5804 changed files with 943618 additions and 1 deletions
--- a/GtkSharp/Source/Libs/Shared/FuncLoader.cs
+++ b/GtkSharp/Source/Libs/Shared/FuncLoader.cs
@@ -0,0 +1,117 @@
+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);
+    }
+
+    private class Unix
+    {
+        [DllImport("libc")]
+        public static extern IntPtr dlopen(string path, int flags);
+
+        [DllImport("libc")]
+        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, IsLinux;
+
+    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;
+                    if (uname(buf) == 0 && Marshal.PtrToStringAnsi(buf) == "Linux")
+                        IsLinux = 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);
+
+        if (IsLinux)
+            return Linux.dlopen(libname, RTLD_GLOBAL | RTLD_LAZY);
+
+        return Unix.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 if (IsLinux)
+            ret = Linux.dlsym(library, function);
+        else
+            ret = Unix.dlsym(library, function);
+
+        return ret;
+    }
+
+    public static T LoadFunction<T>(IntPtr procaddress)
+    {
+        if (procaddress == IntPtr.Zero)
+            return default(T);
+
+        return Marshal.GetDelegateForFunctionPointer<T>(procaddress);
+    }
+}