diff options
Diffstat (limited to 'src/csharp/Grpc.Core/Internal/NativeLogRedirector.cs')
-rw-r--r-- | src/csharp/Grpc.Core/Internal/NativeLogRedirector.cs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/csharp/Grpc.Core/Internal/NativeLogRedirector.cs b/src/csharp/Grpc.Core/Internal/NativeLogRedirector.cs index bf6440123a..30264acb10 100644 --- a/src/csharp/Grpc.Core/Internal/NativeLogRedirector.cs +++ b/src/csharp/Grpc.Core/Internal/NativeLogRedirector.cs @@ -51,6 +51,7 @@ namespace Grpc.Core.Internal } } + [MonoPInvokeCallback(typeof(GprLogDelegate))] private static void HandleWrite(IntPtr fileStringPtr, int line, ulong threadId, IntPtr severityStringPtr, IntPtr msgPtr) { try @@ -86,4 +87,22 @@ namespace Grpc.Core.Internal } } } + + /// <summary> + /// Use this attribute to mark methods that will be called back from P/Invoke calls. + /// iOS (and probably other AOT platforms) needs to have delegates registered. + /// Instead of depending on Xamarin.iOS for this, we can just create our own, + /// the iOS runtime just checks for the type name. + /// See: https://docs.microsoft.com/en-gb/xamarin/ios/internals/limitations#reverse-callbacks + /// </summary> + [AttributeUsage(AttributeTargets.Method)] + internal sealed class MonoPInvokeCallbackAttribute : Attribute + { + public MonoPInvokeCallbackAttribute(Type type) + { + Type = type; + } + + public Type Type { get; private set; } + } } |