diff --git a/FFMpegCore/FFMpeg/Arguments/PipeArgument.cs b/FFMpegCore/FFMpeg/Arguments/PipeArgument.cs index 5a809f7..4011c23 100644 --- a/FFMpegCore/FFMpeg/Arguments/PipeArgument.cs +++ b/FFMpegCore/FFMpeg/Arguments/PipeArgument.cs @@ -7,6 +7,7 @@ namespace FFMpegCore.Arguments; public abstract class PipeArgument { private readonly PipeDirection _direction; + private readonly object _pipeLock = new(); protected PipeArgument(PipeDirection direction) { @@ -22,19 +23,25 @@ public abstract class PipeArgument public void Pre() { - if (Pipe != null) + lock (_pipeLock) { - throw new InvalidOperationException("Pipe already has been opened"); - } + if (Pipe != null) + { + throw new InvalidOperationException("Pipe already has been opened"); + } - Pipe = new NamedPipeServerStream(PipeName, _direction, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous); + Pipe = new NamedPipeServerStream(PipeName, _direction, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous); + } } public void Post() { Debug.WriteLine($"Disposing NamedPipeServerStream on {GetType().Name}"); - Pipe?.Dispose(); - Pipe = null!; + lock (_pipeLock) + { + Pipe?.Dispose(); + Pipe = null!; + } } public async Task During(CancellationToken cancellationToken = default) @@ -50,9 +57,12 @@ public abstract class PipeArgument finally { Debug.WriteLine($"Disconnecting NamedPipeServerStream on {GetType().Name}"); - if (Pipe is { IsConnected: true }) + lock (_pipeLock) { - Pipe.Disconnect(); + if (Pipe is { IsConnected: true }) + { + Pipe.Disconnect(); + } } } }