/// <summary>
/// Attempts to read a single event and dispatch it to the target.
/// </summary>
public BinaryLogReader.EventReadResult ReadNextEvent()
{
return(Reader.ReadEvent());
}
public void RoundTripLog()
{
BuildXLContext context = BuildXLContext.CreateInstanceForTesting();
var pt = context.PathTable;
string path1 = A("c", "a", "b", "c");
var ap1 = AbsolutePath.Create(pt, path1);
string path2 = A("c", "d", "c", "a");
var ap2 = AbsolutePath.Create(pt, path2);
string path3 = A("d", "a", "c", "a");
var ap3 = AbsolutePath.Create(pt, path3);
string path3Caps = A("D", "A", "c", "a");
var ap3Caps = AbsolutePath.Create(pt, path3Caps);
int lastTestCase0EventIteration = 0;
int testCase0EventIteration = 0;
int expectedReadCount = 0;
Guid logId = Guid.NewGuid();
using (MemoryStream ms = new MemoryStream())
{
using (BinaryLogger writer = new BinaryLogger(ms, context, logId, lastStaticAbsolutePathIndex: ap2.Value.Value, closeStreamOnDispose: false))
{
using (var eventScope = writer.StartEvent((uint)EventId.TestCase0, workerId: 0))
{
eventScope.Writer.Write(ap1);
eventScope.Writer.Write("test string");
eventScope.Writer.Write(ap3);
eventScope.Writer.Write(12345);
expectedReadCount++;
lastTestCase0EventIteration++;
}
using (var eventScope = writer.StartEvent((uint)EventId.TestCase0, workerId: 0))
{
eventScope.Writer.Write("test string 2");
eventScope.Writer.Write(true);
eventScope.Writer.Write(ap3);
expectedReadCount++;
lastTestCase0EventIteration++;
}
}
ms.Position = 0;
using (BinaryLogReader reader = new BinaryLogReader(ms, context))
{
XAssert.IsTrue(reader.LogId.HasValue);
XAssert.AreEqual(logId, reader.LogId.Value);
reader.RegisterHandler((uint)EventId.TestCase0, (eventId, workerId, timestamp, eventReader) =>
{
switch (testCase0EventIteration)
{
case 0:
XAssert.AreEqual(ap1, eventReader.ReadAbsolutePath());
XAssert.AreEqual("test string", eventReader.ReadString());
XAssert.AreEqual(ap3, eventReader.ReadAbsolutePath());
XAssert.AreEqual(12345, eventReader.ReadInt32());
break;
case 1:
XAssert.AreEqual("test string 2", eventReader.ReadString());
XAssert.AreEqual(true, eventReader.ReadBoolean());
XAssert.AreEqual(ap3, eventReader.ReadAbsolutePath());
break;
default:
XAssert.Fail("Event raised unexpected number of times.");
break;
}
testCase0EventIteration++;
});
reader.RegisterHandler((uint)EventId.UnusedEvent, (eventId, workerId, timestamp, eventReader) =>
{
XAssert.Fail("This event should never be called.");
});
int readCount = 0;
BinaryLogReader.EventReadResult?readResult;
while ((readResult = reader.ReadEvent()) == BinaryLogReader.EventReadResult.Success)
{
XAssert.IsTrue(readCount < expectedReadCount);
readCount++;
}
XAssert.AreEqual(expectedReadCount, readCount);
XAssert.AreEqual(lastTestCase0EventIteration, testCase0EventIteration);
XAssert.AreEqual(BinaryLogReader.EventReadResult.EndOfStream, readResult);
}
}
}