Adding method for waiting, with timeout, until a condition is true

ICD.Common.Utils.Tests/ThreadingUtilsTest.cs

@@ -4,8 +4,25 @@ using NUnit.Framework;
 namespace ICD.Common.Utils.Tests
 {
 	[TestFixture]
-    public sealed class ThreadingUtilsTest
-    {
+	public sealed class ThreadingUtilsTest
+	{
+		[Test]
+		public static void WaitTest()
+		{
+			Assert.IsFalse(ThreadingUtils.Wait(() => false, 100));
+			Assert.IsTrue(ThreadingUtils.Wait(() => true, 100));
+
+			bool complete = false;
+
+			ThreadingUtils.SafeInvoke(() =>
+			                          {
+				                          ThreadingUtils.Sleep(50);
+				                          complete = true;
+			                          });
+
+			Assert.IsTrue(ThreadingUtils.Wait(() => complete, 100));
+		}
+
 		[Test]
 		public void Sleep()
 		{
@@ -20,7 +37,11 @@ namespace ICD.Common.Utils.Tests
 		public void SafeInvokeTest()
 		{
 			bool result = false;
-			ThreadingUtils.SafeInvoke(() => { ThreadingUtils.Sleep(100); result = true; });
+			ThreadingUtils.SafeInvoke(() =>
+			                          {
+				                          ThreadingUtils.Sleep(100);
+				                          result = true;
+			                          });
 
 			Assert.IsFalse(result);
 			ThreadingUtils.Sleep(1000);
@@ -31,7 +52,11 @@ namespace ICD.Common.Utils.Tests
 		public void SafeInvokeParamTest()
 		{
 			bool result = false;
-			ThreadingUtils.SafeInvoke(p => { ThreadingUtils.Sleep(100); result = p; }, true);
+			ThreadingUtils.SafeInvoke(p =>
+			                          {
+				                          ThreadingUtils.Sleep(100);
+				                          result = p;
+			                          }, true);
 
 			Assert.IsFalse(result);
 			ThreadingUtils.Sleep(1000);

ICD.Common.Utils/ThreadingUtils.cs

@@ -12,6 +12,28 @@ namespace ICD.Common.Utils
 {
 	public static class ThreadingUtils
 	{
+		/// <summary>
+		/// Wait until the given condition is true.
+		/// </summary>
+		/// <param name="condition"></param>
+		/// <param name="timeout"></param>
+		/// <returns></returns>
+		public static bool Wait(Func<bool> condition, long timeout)
+		{
+			if (condition == null)
+				throw new ArgumentNullException("condition");
+
+			DateTime end = IcdEnvironment.GetLocalTime().AddMilliseconds(timeout);
+
+			while (!condition())
+			{
+				if (IcdEnvironment.GetLocalTime() >= end)
+					return false;
+			}
+
+			return true;
+		}
+
 		/// <summary>
 		/// Puts the current thread to sleep for the given amount of time.
 		/// </summary>