- fix large message

- make the default message size compat with 1.6 branch

Driver/Internal/MongoRequestMessage.cs

@@ -86,7 +86,7 @@ namespace MongoDB.Driver.Internal {
 
         #region protected methods
         protected void BackpatchMessageLength() {
-            int messageLength = buffer.Position - messageStartPosition;
+            messageLength = buffer.Position - messageStartPosition;
             buffer.Backpatch(messageStartPosition, messageLength);
         }
 

Driver/MongoDefaults.cs

@@ -23,7 +23,7 @@ namespace MongoDB.Driver {
     public static class MongoDefaults {
         #region public static fields
         private static TimeSpan connectTimeout = TimeSpan.FromSeconds(30);
-        private static int maxMessageLength = 16 * 1024 * 1204; // 16MB
+        private static int maxMessageLength = 4 * 1024 * 1204; // 4MB
         private static int tcpReceiveBufferSize = 4 * 1024 * 1204; // 4MB
         private static int tcpSendBufferSize = 4 * 1024 * 1204; // 4MB
         #endregion

DriverOnlineTests/Core/MongoCollectionTests.cs

@@ -17,6 +17,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using MongoDB.Driver.Builders;
 using NUnit.Framework;
 
 using MongoDB.Bson;
@@ -63,5 +64,32 @@ namespace MongoDB.DriverOnlineTests {
             Assert.AreEqual("_id", result.GetElement(0).Name);
             Assert.AreEqual("x", result.GetElement(1).Name);
         }
+
+        [Test]
+        public void TestSortAndLimit()
+        {
+            collection.RemoveAll();
+            collection.Insert(new BsonDocument { { "x", 4 }, { "y", 2 } });
+            collection.Insert(new BsonDocument { { "x", 2 }, { "y", 2 } });
+            collection.Insert(new BsonDocument { { "x", 3 }, { "y", 2 } });
+            collection.Insert(new BsonDocument { { "x", 1 }, { "y", 2 } });
+            var result = collection.FindAll().SetSortOrder("x").SetLimit(3).Select(x=>x["x"].AsInt32);
+            Assert.AreEqual(3, result.Count());
+            CollectionAssert.AreEqual(new[] {1, 2, 3}, result);
+        }
+
+        [Test]
+        public void TestFind()
+        {
+            collection.RemoveAll();
+            collection.Insert(new BsonDocument { { "x", 4 }, { "y", 2 } });
+            collection.Insert(new BsonDocument { { "x", 2 }, { "y", 2 } });
+            collection.Insert(new BsonDocument { { "x", 3 }, { "y", 2 } });
+            collection.Insert(new BsonDocument { { "x", 1 }, { "y", 2 } });
+            var result = collection.Find(Query.GT("x", BsonValue.Create(3)));
+            Assert.AreEqual(1, result.Count());
+            Assert.AreEqual(4, result.Select(x=>x["x"].AsInt32).FirstOrDefault());
+        }
+
     }
 }

DriverOnlineTests/DriverOnlineTests.csproj

@@ -74,6 +74,7 @@
     <Compile Include="Core\MongoDatabaseTests.cs" />
     <Compile Include="Core\MongoServerTests.cs" />
     <Compile Include="Jira\CSharp77Tests.cs" />
+    <Compile Include="Performance\Class1.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
@@ -103,6 +104,7 @@
       <Install>true</Install>
     </BootstrapperPackage>
   </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.