using Silk.NET.Vulkan;
using System;

namespace Ryujinx.Graphics.Vulkan
{
    static class FenceHelper
    {
        private const ulong DefaultTimeout = 100000000; // 100ms

        public static bool AnySignaled(Vk api, Device device, ReadOnlySpan<Fence> fences, ulong timeout = 0)
        {
            return api.WaitForFences(device, (uint)fences.Length, fences, false, timeout) == Result.Success;
        }

        public static bool AllSignaled(Vk api, Device device, ReadOnlySpan<Fence> fences, ulong timeout = 0)
        {
            return api.WaitForFences(device, (uint)fences.Length, fences, true, timeout) == Result.Success;
        }

        public static void WaitAllIndefinitely(Vk api, Device device, ReadOnlySpan<Fence> fences)
        {
            Result result;
            while ((result = api.WaitForFences(device, (uint)fences.Length, fences, true, DefaultTimeout)) == Result.Timeout)
            {
                // Keep waiting while the fence is not signaled.
            }

            result.ThrowOnError();
        }
    }
}
