internal static Task WriteAsync(this StreamWriter writer, NamedPipeCommand command)
{
return writer.WriteAsync((char)command);
}
internal static Task WriteAsync(this StreamWriter writer, NamedPipeCommand command)
{
return(writer.WriteAsync((char)command));
}
private async Task <T> SendReceiveCommandAsync <T>(Func <StreamReader, StreamWriter, Task <T> > func, NamedPipeCommand command, CancellationToken cancellationToken, T defaultValue = default(T))
{
// Time out after 2 seconds to access named pipe
using (var innerCancellationTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(2)))
{
try
{
// Ensure that the named pipe cancellation token gets cancelled if the main token is
using (cancellationToken.Register(innerCancellationTokenSource.Cancel))
using (var pipe = new NamedPipeClientStream(NamedPipePoshGitServer.ServerName, ServerInfo.Name, PipeDirection.InOut, PipeOptions.Asynchronous))
{
await pipe.ConnectAsync(innerCancellationTokenSource.Token);
using (var writer = new NonClosingStreamWriter(pipe)
{
AutoFlush = true
})
using (var reader = new NonClosingStreamReader(pipe))
{
await writer.WriteAsync(command);
var response = await reader.ReadCommandAsync();
if (response != NamedPipeCommand.Ready)
{
return(defaultValue);
}
return(await func(reader, writer));
}
}
}
catch (OperationCanceledException)
{
_log.Error("Named pipe communication with server was cancelled");
return(defaultValue);
}
}
}
