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Fix issue where lsl -> c# generation in co-operative termination mode did not correctly handle single statement versions of for, while and do-while loops. 

Add regression tests to validate the fix.
This problem will not affect the default abort termination mode.
user_profiles
Justin Clark-Casey (justincc) 2013-01-30 03:44:56 +00:00
parent a61ecee227
commit 5ac84a3793
2 changed files with 171 additions and 22 deletions
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30
OpenSim/Region/ScriptEngine/Shared/CodeTools/CSCodeGenerator.cs
View File

@ -31,7 +31,6 @@ using System.Collections.Generic;
using System.Reflection;
using log4net;
using Tools;
using OpenSim.Region.Framework.Interfaces;
namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
@ -479,20 +478,27 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
{
string retstr = String.Empty;
bool printSemicolon = true;
retstr += Indent();
bool transformToBlock = false;
if (m_insertCoopTerminationChecks)
{
// We have to check in event functions as well because the user can manually call these.
if (previousSymbol is GlobalFunctionDefinition
|| previousSymbol is WhileStatement
// A non-braced single line do while structure cannot contain multiple statements.
// So to insert the termination check we change this to a braced control structure instead.
if (previousSymbol is WhileStatement
|| previousSymbol is DoWhileStatement
|| previousSymbol is ForLoop
|| previousSymbol is StateEvent)
retstr += Generate(m_coopTerminationCheck);
|| previousSymbol is ForLoop)
{
transformToBlock = true;
// FIXME: This will be wrongly indented because the previous for/while/dowhile will have already indented.
retstr += GenerateIndentedLine("{");
retstr += GenerateIndentedLine(m_coopTerminationCheck);
}
}
retstr += Indent();
if (0 < s.kids.Count)
{
// Jump label prints its own colon, we don't need a semicolon.
@ -508,6 +514,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
if (printSemicolon)
retstr += GenerateLine(";");
if (transformToBlock)
{
// FIXME: This will be wrongly indented because the for/while/dowhile is currently handling the unindent
retstr += GenerateIndentedLine("}");
}
return retstr;
}

163
OpenSim/Region/ScriptEngine/Shared/Instance/Tests/CoopTerminationTests.cs
View File

@ -55,10 +55,22 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance.Tests
private OSChatMessage m_osChatMessageReceived;
/// <summary>
/// Number of chat messages received so far. Reset before each test.
/// </summary>
private int m_chatMessagesReceived;
/// <summary>
/// Number of chat messages expected. m_chatEvent is not fired until this number is reached or exceeded.
/// </summary>
private int m_chatMessagesThreshold;
[SetUp]
public void Init()
{
m_osChatMessageReceived = null;
m_chatMessagesReceived = 0;
m_chatMessagesThreshold = 0;
m_chatEvent = new AutoResetEvent(false);
m_stoppedEvent = new AutoResetEvent(false);
@ -125,6 +137,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance.Tests
TestStop(script);
}
[Test]
public void TestNoStopOnSingleStatementForLoop()
{
TestHelpers.InMethod();
// TestHelpers.EnableLogging();
string script =
@"default
{
state_entry()
{
integer i = 0;
for (i = 0; i <= 1; i++) llSay(0, ""Iter "" + (string)i);
}
}";
TestSingleStatementNoStop(script);
}
[Test]
public void TestStopOnLongSingleStatementForLoop()
{
@ -139,8 +170,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance.Tests
integer i = 0;
llSay(0, ""Thin Lizzy"");
for (i = 0; i < 2147483647; i++)
llSay(0, ""Iter "" + (string)i);
for (i = 0; i < 2147483647; i++) llSay(0, ""Iter "" + (string)i);
}
}";
@ -171,6 +201,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance.Tests
TestStop(script);
}
[Test]
public void TestNoStopOnSingleStatementWhileLoop()
{
TestHelpers.InMethod();
// TestHelpers.EnableLogging();
string script =
@"default
{
state_entry()
{
integer i = 0;
while (i < 2) llSay(0, ""Iter "" + (string)i++);
}
}";
TestSingleStatementNoStop(script);
}
[Test]
public void TestStopOnLongSingleStatementWhileLoop()
{
@ -218,7 +267,50 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance.Tests
}
[Test]
public void TestStopOnLongDoWhileLoop()
public void TestNoStopOnSingleStatementDoWhileLoop()
{
TestHelpers.InMethod();
// TestHelpers.EnableLogging();
string script =
@"default
{
state_entry()
{
integer i = 0;
do llSay(0, ""Iter "" + (string)i++);
while (i < 2);
}
}";
TestSingleStatementNoStop(script);
}
[Test]
public void TestStopOnLongSingleStatementDoWhileLoop()
{
TestHelpers.InMethod();
// TestHelpers.EnableLogging();
string script =
@"default
{
state_entry()
{
integer i = 0;
llSay(0, ""Thin Lizzy"");
do llSay(0, ""Iter "" + (string)i++);
while (1 == 1);
}
}";
TestStop(script);
}
[Test]
public void TestStopOnLongCompoundStatementDoWhileLoop()
{
TestHelpers.InMethod();
// TestHelpers.EnableLogging();
@ -234,7 +326,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance.Tests
do
{
llSay(0, ""Iter "" + (string)i++);
} while (1 == 1);
} while (1 == 1);
}
}";
@ -320,14 +412,13 @@ default
TestStop(script);
}
private void TestStop(string script)
private SceneObjectPart CreateScript(string script, string itemName, UUID userId)
{
UUID userId = TestHelpers.ParseTail(0x1);
// UUID objectId = TestHelpers.ParseTail(0x100);
// UUID itemId = TestHelpers.ParseTail(0x3);
string itemName = "TestStop() Item";
SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, "TestStop", 0x100);
SceneObjectGroup so
= SceneHelpers.CreateSceneObject(1, userId, string.Format("Object for {0}", itemName), 0x100);
m_scene.AddNewSceneObject(so, true);
InventoryItemBase itemTemplate = new InventoryItemBase();
@ -338,14 +429,57 @@ default
m_scene.EventManager.OnChatFromWorld += OnChatFromWorld;
SceneObjectPart partWhereRezzed = m_scene.RezNewScript(userId, itemTemplate, script);
return m_scene.RezNewScript(userId, itemTemplate, script);
}
private void TestSingleStatementNoStop(string script)
{
// In these tests we expect to see at least 2 chat messages to confirm that the loop is working properly.
m_chatMessagesThreshold = 2;
UUID userId = TestHelpers.ParseTail(0x1);
// UUID objectId = TestHelpers.ParseTail(0x100);
// UUID itemId = TestHelpers.ParseTail(0x3);
string itemName = "TestNoStop";
SceneObjectPart partWhereRezzed = CreateScript(script, itemName, userId);
TaskInventoryItem rezzedItem = partWhereRezzed.Inventory.GetInventoryItem(itemName);
// Wait for the script to start the event before we try stopping it.
m_chatEvent.WaitOne(60000);
Console.WriteLine("Script started with message [{0}]", m_osChatMessageReceived.Message);
if (m_osChatMessageReceived == null)
Assert.Fail("Script did not start");
else
Assert.That(m_chatMessagesReceived, Is.EqualTo(2));
bool running;
TaskInventoryItem scriptItem = partWhereRezzed.Inventory.GetInventoryItem(itemName);
Assert.That(
SceneObjectPartInventory.TryGetScriptInstanceRunning(m_scene, scriptItem, out running), Is.True);
Assert.That(running, Is.True);
}
private void TestStop(string script)
{
// In these tests we're only interested in the first message to confirm that the script has started.
m_chatMessagesThreshold = 1;
UUID userId = TestHelpers.ParseTail(0x1);
// UUID objectId = TestHelpers.ParseTail(0x100);
// UUID itemId = TestHelpers.ParseTail(0x3);
string itemName = "TestStop";
SceneObjectPart partWhereRezzed = CreateScript(script, itemName, userId);
TaskInventoryItem rezzedItem = partWhereRezzed.Inventory.GetInventoryItem(itemName);
// Wait for the script to start the event before we try stopping it.
m_chatEvent.WaitOne(60000);
if (m_osChatMessageReceived != null)
Console.WriteLine("Script started with message [{0}]", m_osChatMessageReceived.Message);
else
Assert.Fail("Script did not start");
// FIXME: This is a very poor way of trying to avoid a low-probability race condition where the script
// executes llSay() but has not started the next statement before we try to stop it.
@ -367,11 +501,14 @@ default
private void OnChatFromWorld(object sender, OSChatMessage oscm)
{
m_scene.EventManager.OnChatFromWorld -= OnChatFromWorld;
Console.WriteLine("Got chat [{0}]", oscm.Message);
m_osChatMessageReceived = oscm;
m_chatEvent.Set();
if (++m_chatMessagesReceived >= m_chatMessagesThreshold)
{
m_scene.EventManager.OnChatFromWorld -= OnChatFromWorld;
m_chatEvent.Set();
}
}
}
}