Fix managed iOS native media linking

dotnet/Directory.Build.props

@@ -8,7 +8,6 @@
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
   <PropertyGroup Condition="'$(VoiceCatIosStatic)' == 'true'">
-    <DefineConstants>$(DefineConstants);VOICECAT_IOS_STATIC</DefineConstants>
     <RuntimeIdentifiers>ios-arm64;iossimulator-arm64</RuntimeIdentifiers>
     <NuGetLockFilePath>packages.ios.lock.json</NuGetLockFilePath>
   </PropertyGroup>

dotnet/src/VoiceCat.Codec/NativeMethods.cs

@@ -1,14 +1,19 @@
 using System.Runtime.InteropServices;
+using System.Reflection;
 
 namespace VoiceCat.Codec;
 
 internal static unsafe partial class NativeMethods
 {
-#if VOICECAT_IOS_STATIC
-    private const string Library = "__Internal";
-#else
+    static NativeMethods()
+    {
+        if (OperatingSystem.IsIOS()) NativeLibrary.SetDllImportResolver(typeof(NativeMethods).Assembly, ResolveIosStaticLibrary);
+    }
+
+    private static nint ResolveIosStaticLibrary(string libraryName, Assembly assembly, DllImportSearchPath? searchPath) =>
+        libraryName == "voicecat_media" ? NativeLibrary.GetMainProgramHandle() : 0;
+
     private const string Library = "voicecat_media";
-#endif
     [LibraryImport(Library, EntryPoint = "vcm_opus_version")]
     internal static partial nint Version();
     [LibraryImport(Library, EntryPoint = "vcm_opus_error")]

dotnet/src/VoiceCat.Core/VoiceCatClient.cs

@@ -43,6 +43,7 @@ public sealed partial class VoiceCatClient : IAsyncDisposable
 
     public event Action<ClientConnectionState>? ConnectionStateChanged;
     public ClientConnectionState State { get { lock (stateGate) return state; } }
+    public Exception? ConnectionFailure { get; private set; }
     public Task Completion => reader;
     public AuthResult? Authentication { get { lock (stateGate) return authentication?.Clone(); } }
     public ServerHello? ServerHello { get { lock (stateGate) return hello?.Clone(); } }
@@ -72,6 +73,7 @@ public sealed partial class VoiceCatClient : IAsyncDisposable
             ObjectDisposedException.ThrowIf(disposed.IsCancellationRequested, this);
             if (control is not null) throw new InvalidOperationException("Disconnect before reconnecting.");
             started = true;
+            ConnectionFailure = null;
             connectionLifetime = CancellationTokenSource.CreateLinkedTokenSource(disposed.Token);
             using var connecting = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, connectionLifetime.Token);
             CancellationToken token = connecting.Token;
@@ -201,7 +203,7 @@ public sealed partial class VoiceCatClient : IAsyncDisposable
                 if (message.Disconnect is not null) { connection.CompleteWrites(); break; }
             }
         }
-        catch (Exception exception) when (exception is IOException or OperationCanceledException or SocketException or ObjectDisposedException) { failure = exception; }
+        catch (Exception exception) { failure = exception; ConnectionFailure = exception; }
         finally
         {
             connectionLifetime?.Cancel();

dotnet/src/VoiceCat.Dsp/RnnoiseProcessor.cs

@@ -1,21 +1,26 @@
 using System.Runtime.InteropServices;
+using System.Reflection;
 using Microsoft.Win32.SafeHandles;
 
 namespace VoiceCat.Dsp;
 
 public sealed unsafe partial class RnnoiseProcessor : IDisposable
 {
-#if VOICECAT_IOS_STATIC
-    private const string NativeLibrary = "__Internal";
-#else
     private const string NativeLibrary = "voicecat_media";
-#endif
     public const int SampleRate = 48000;
     public const int FrameSamples = 480;
     private readonly RnnoiseHandle handle;
     private readonly float[] input = new float[FrameSamples];
     private readonly float[] output = new float[FrameSamples];
 
+    static RnnoiseProcessor()
+    {
+        if (OperatingSystem.IsIOS()) System.Runtime.InteropServices.NativeLibrary.SetDllImportResolver(typeof(RnnoiseProcessor).Assembly, ResolveIosStaticLibrary);
+    }
+
+    private static nint ResolveIosStaticLibrary(string libraryName, Assembly assembly, DllImportSearchPath? searchPath) =>
+        libraryName == NativeLibrary ? System.Runtime.InteropServices.NativeLibrary.GetMainProgramHandle() : 0;
+
     public RnnoiseProcessor()
     {
         handle = new(Create());