Max Katz
3 years ago
committed by
GitHub
GitHub
27 changed files with 270 additions and 321 deletions
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using System; |
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using System.ComponentModel; |
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using System.Reflection; |
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using System.Runtime.InteropServices; |
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using Avalonia.Compatibility; |
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using Avalonia.Platform.Interop; |
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namespace Avalonia.Compatibility |
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{ |
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internal class NativeLibraryEx |
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{ |
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#if NET6_0_OR_GREATER
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public static IntPtr Load(string dll, Assembly assembly) => NativeLibrary.Load(dll, assembly, null); |
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public static IntPtr Load(string dll) => NativeLibrary.Load(dll); |
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public static bool TryGetExport(IntPtr handle, string name, out IntPtr address) => |
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NativeLibrary.TryGetExport(handle, name, out address); |
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#else
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public static IntPtr Load(string dll, Assembly assembly) => Load(dll); |
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public static IntPtr Load(string dll) |
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{ |
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var handle = DlOpen!(dll); |
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if (handle != IntPtr.Zero) |
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return handle; |
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throw new InvalidOperationException("Unable to load " + dll, DlError!()); |
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} |
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public static bool TryGetExport(IntPtr handle, string name, out IntPtr address) |
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{ |
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try |
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{ |
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address = DlSym!(handle, name); |
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return address != default; |
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} |
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catch (Exception) |
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{ |
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address = default; |
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return false; |
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} |
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} |
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static NativeLibraryEx() |
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{ |
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if (OperatingSystemEx.IsWindows()) |
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{ |
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Win32Imports.Init(); |
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} |
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else if (OperatingSystemEx.IsLinux() || OperatingSystemEx.IsMacOS()) |
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{ |
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var buffer = Marshal.AllocHGlobal(0x1000); |
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uname(buffer); |
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var unixName = Marshal.PtrToStringAnsi(buffer); |
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Marshal.FreeHGlobal(buffer); |
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if (unixName == "Darwin") |
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OsXImports.Init(); |
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else |
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LinuxImports.Init(); |
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} |
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} |
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private static Func<string, IntPtr>? DlOpen; |
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private static Func<IntPtr, string, IntPtr>? DlSym; |
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private static Func<Exception?>? DlError; |
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[DllImport("libc")] |
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static extern int uname(IntPtr buf); |
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static class Win32Imports |
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{ |
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[DllImport("kernel32", CharSet = CharSet.Ansi, ExactSpelling = true, SetLastError = true)] |
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private static extern IntPtr GetProcAddress(IntPtr hModule, string procName); |
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[DllImport("kernel32", EntryPoint = "LoadLibraryW", SetLastError = true, CharSet = CharSet.Unicode)] |
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private static extern IntPtr LoadLibrary(string lpszLib); |
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public static void Init() |
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{ |
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DlOpen = LoadLibrary; |
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DlSym = GetProcAddress; |
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DlError = () => new Win32Exception(Marshal.GetLastWin32Error()); |
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} |
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} |
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static class LinuxImports |
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{ |
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[DllImport("libdl.so.2")] |
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private static extern IntPtr dlopen(string path, int flags); |
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[DllImport("libdl.so.2")] |
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private static extern IntPtr dlsym(IntPtr handle, string symbol); |
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[DllImport("libdl.so.2")] |
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private static extern IntPtr dlerror(); |
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public static void Init() |
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{ |
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DlOpen = s => dlopen(s, 1); |
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DlSym = dlsym; |
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DlError = () => new InvalidOperationException(Marshal.PtrToStringAnsi(dlerror())); |
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} |
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} |
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static class OsXImports |
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{ |
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[DllImport("/usr/lib/libSystem.dylib")] |
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private static extern IntPtr dlopen(string path, int flags); |
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[DllImport("/usr/lib/libSystem.dylib")] |
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private static extern IntPtr dlsym(IntPtr handle, string symbol); |
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[DllImport("/usr/lib/libSystem.dylib")] |
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private static extern IntPtr dlerror(); |
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public static void Init() |
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{ |
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DlOpen = s => dlopen(s, 1); |
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DlSym = dlsym; |
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DlError = () => new InvalidOperationException(Marshal.PtrToStringAnsi(dlerror())); |
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} |
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} |
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#endif
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} |
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} |
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@ -1,161 +0,0 @@ |
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using System; |
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using System.Runtime.InteropServices; |
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using Avalonia.Platform.Interop; |
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// ReSharper disable InconsistentNaming
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namespace Avalonia.Platform.Internal |
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{ |
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class UnixLoader : IDynamicLibraryLoader |
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{ |
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static class LinuxImports |
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{ |
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[DllImport("libdl.so.2")] |
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private static extern IntPtr dlopen(string path, int flags); |
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[DllImport("libdl.so.2")] |
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private static extern IntPtr dlsym(IntPtr handle, string symbol); |
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[DllImport("libdl.so.2")] |
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private static extern IntPtr dlerror(); |
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public static void Init() |
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{ |
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DlOpen = dlopen; |
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DlSym = dlsym; |
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DlError = dlerror; |
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} |
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} |
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static class OsXImports |
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{ |
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[DllImport("/usr/lib/libSystem.dylib")] |
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private static extern IntPtr dlopen(string path, int flags); |
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[DllImport("/usr/lib/libSystem.dylib")] |
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private static extern IntPtr dlsym(IntPtr handle, string symbol); |
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[DllImport("/usr/lib/libSystem.dylib")] |
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private static extern IntPtr dlerror(); |
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public static void Init() |
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{ |
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DlOpen = dlopen; |
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DlSym = dlsym; |
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DlError = dlerror; |
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} |
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} |
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[DllImport("libc")] |
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static extern int uname(IntPtr buf); |
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static UnixLoader() |
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{ |
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var buffer = Marshal.AllocHGlobal(0x1000); |
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uname(buffer); |
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var unixName = Marshal.PtrToStringAnsi(buffer); |
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Marshal.FreeHGlobal(buffer); |
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if (unixName == "Darwin") |
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OsXImports.Init(); |
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else |
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LinuxImports.Init(); |
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} |
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private static Func<string, int, IntPtr>? DlOpen; |
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private static Func<IntPtr, string, IntPtr>? DlSym; |
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private static Func<IntPtr>? DlError; |
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// ReSharper restore InconsistentNaming
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static string? DlErrorString() => Marshal.PtrToStringAnsi(DlError!.Invoke()); |
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public IntPtr LoadLibrary(string dll) |
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{ |
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var handle = DlOpen!.Invoke(dll, 1); |
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if (handle == IntPtr.Zero) |
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throw new DynamicLibraryLoaderException(DlErrorString()!); |
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return handle; |
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} |
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public IntPtr GetProcAddress(IntPtr dll, string proc, bool optional) |
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{ |
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var ptr = DlSym!.Invoke(dll, proc); |
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if (ptr == IntPtr.Zero && !optional) |
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throw new DynamicLibraryLoaderException(DlErrorString()!); |
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return ptr; |
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} |
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} |
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internal class Win32Loader : IDynamicLibraryLoader |
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{ |
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[DllImport("kernel32", CharSet = CharSet.Ansi, ExactSpelling = true, SetLastError = true)] |
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private static extern IntPtr GetProcAddress(IntPtr hModule, string procName); |
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[DllImport("kernel32", EntryPoint = "LoadLibraryW", SetLastError = true, CharSet = CharSet.Unicode)] |
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private static extern IntPtr LoadLibrary(string lpszLib); |
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IntPtr IDynamicLibraryLoader.LoadLibrary(string dll) |
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{ |
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var handle = LoadLibrary(dll); |
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if (handle != IntPtr.Zero) |
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return handle; |
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var err = Marshal.GetLastWin32Error(); |
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throw new DynamicLibraryLoaderException("Error loading " + dll + " error " + err); |
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} |
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IntPtr IDynamicLibraryLoader.GetProcAddress(IntPtr dll, string proc, bool optional) |
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{ |
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var ptr = GetProcAddress(dll, proc); |
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if (ptr == IntPtr.Zero && !optional) |
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throw new DynamicLibraryLoaderException("Error " + Marshal.GetLastWin32Error()); |
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return ptr; |
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} |
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} |
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#if NET6_0_OR_GREATER
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internal class Net6Loader : IDynamicLibraryLoader |
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{ |
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public IntPtr LoadLibrary(string dll) |
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{ |
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try |
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{ |
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return NativeLibrary.Load(dll); |
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} |
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catch (Exception ex) |
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{ |
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throw new DynamicLibraryLoaderException("Error loading " + dll, ex); |
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} |
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} |
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public IntPtr GetProcAddress(IntPtr dll, string proc, bool optional) |
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{ |
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try |
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{ |
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if (optional) |
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{ |
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return NativeLibrary.TryGetExport(dll, proc, out var address) ? address : default; |
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} |
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return NativeLibrary.GetExport(dll, proc); |
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} |
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catch (Exception ex) |
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{ |
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throw new DynamicLibraryLoaderException("Error " + dll, ex); |
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} |
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} |
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} |
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#endif
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internal class NotSupportedLoader : IDynamicLibraryLoader |
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{ |
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IntPtr IDynamicLibraryLoader.LoadLibrary(string dll) |
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{ |
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throw new PlatformNotSupportedException(); |
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} |
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IntPtr IDynamicLibraryLoader.GetProcAddress(IntPtr dll, string proc, bool optional) |
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{ |
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throw new PlatformNotSupportedException(); |
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} |
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} |
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} |
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@ -1,24 +0,0 @@ |
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using System; |
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using Avalonia.Metadata; |
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namespace Avalonia.Platform.Interop |
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{ |
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public interface IDynamicLibraryLoader |
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{ |
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IntPtr LoadLibrary(string dll); |
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IntPtr GetProcAddress(IntPtr dll, string proc, bool optional); |
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} |
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public class DynamicLibraryLoaderException : Exception |
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{ |
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public DynamicLibraryLoaderException(string message) : base(message) |
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{ |
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} |
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public DynamicLibraryLoaderException(string message, Exception innerException) : base(message, innerException) |
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{ |
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} |
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} |
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} |
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@ -1,26 +1,20 @@ |
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using System; |
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using System.Threading; |
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using Avalonia.Compatibility; |
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using Avalonia.Metadata; |
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using Avalonia.Platform.Internal; |
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namespace Avalonia.Platform |
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{ |
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[PrivateApi] |
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public class StandardRuntimePlatform : IRuntimePlatform |
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{ |
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public IDisposable StartSystemTimer(TimeSpan interval, Action tick) |
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{ |
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return new Timer(_ => tick(), null, interval, interval); |
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} |
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public IUnmanagedBlob AllocBlob(int size) => new UnmanagedBlob(size); |
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private static readonly RuntimePlatformInfo s_info = new() |
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{ |
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IsDesktop = OperatingSystemEx.IsWindows() || OperatingSystemEx.IsMacOS() || OperatingSystemEx.IsLinux(), |
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IsMobile = OperatingSystemEx.IsAndroid() || OperatingSystemEx.IsIOS() |
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}; |
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public virtual RuntimePlatformInfo GetRuntimeInfo() => s_info; |
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} |
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} |
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