// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using System.Threading;

namespace Libuv.Internal
{
  public class UvLoopHandle : UvMemory
  {
    public UvLoopHandle(ILibuvTrace logger) : base(logger)
    {
    }

    public void Init(LibuvFunctions uv)
    {
      CreateMemory(
        uv,
        Thread.CurrentThread.ManagedThreadId,
        uv.loop_size());

      _uv.loop_init(this);
    }

    public void Run(int mode = 0)
    {
      _uv.run(this, mode);
    }

    public void Stop()
    {
      _uv.stop(this);
    }

    public long Now() => _uv.now(this);

    protected override unsafe bool ReleaseHandle()
    {
      var memory = handle;
      if (memory != IntPtr.Zero)
      {
        // loop_close clears the gcHandlePtr
        var gcHandlePtr = *(IntPtr*)memory;

        _uv.loop_close(this);
        handle = IntPtr.Zero;

        DestroyMemory(memory, gcHandlePtr);
      }

      return true;
    }
  }
}