public Expression Build(IEventTraceOperand operand, ParameterExpression eventRecordReader, ParameterExpression eventRecordWriter, ParameterExpression eventMetadataTable, ParameterExpression runtimeMetadata)
{
var eventMetadata = Expression.Parameter(typeof(EventMetadata));
var properties = Expression.Parameter(typeof(PropertyMetadata[]));
var variables = new List <ParameterExpression>
{
eventMetadata,
properties
};
var expGenerator = new ExpressionGenerator(eventRecordReader, eventRecordWriter, properties);
var list = new List <Expression>
{
Expression.Assign(eventMetadata, Expression.ArrayAccess(eventMetadataTable, Expression.Constant(operand.EventMetadataTableIndex))),
Expression.Assign(properties, Expression.PropertyOrField(eventMetadata, "Properties")),
eventRecordWriter.Call("WriteEventBegin", eventMetadata, runtimeMetadata),
expGenerator.CodeGenerate(operand.EventPropertyOperands),
eventRecordWriter.Call("WriteEventEnd")
};
var returnExpression = Expression.Block(variables, list);
return(returnExpression);
}
public static Expression Build(
IEventTraceOperand operand,
ParameterExpression eventRecordReader,
ParameterExpression eventRecordWriter,
ParameterExpression eventMetadataTable,
ParameterExpression runtimeMetadata)
{
return new EventTraceOperandExpressionBuilderImpl().Build(operand, eventRecordReader, eventRecordWriter, eventMetadataTable, runtimeMetadata);
}
public static Expression Build(
IEventTraceOperand operand,
ParameterExpression eventRecordReader,
ParameterExpression eventRecordWriter,
ParameterExpression eventMetadataTable,
ParameterExpression runtimeMetadata)
{
return(new EventTraceOperandExpressionBuilderImpl().Build(operand, eventRecordReader, eventRecordWriter, eventMetadataTable, runtimeMetadata));
}
private static unsafe IEventTraceOperand BuildOperandFromTdh(EVENT_RECORD *eventRecord, int metadataTableIndex)
{
uint bufferSize;
byte *buffer = (byte *)0;
// Not Found
if (Tdh.GetEventInformation(eventRecord, 0, IntPtr.Zero, buffer, out bufferSize) == 1168)
{
return(null);
}
buffer = (byte *)Marshal.AllocHGlobal((int)bufferSize);
Tdh.GetEventInformation(eventRecord, 0, IntPtr.Zero, buffer, out bufferSize);
var traceEventInfo = (TRACE_EVENT_INFO *)buffer;
IEventTraceOperand traceEventOperand = EventTraceOperandBuilder.Build(traceEventInfo, metadataTableIndex);
Marshal.FreeHGlobal((IntPtr)buffer);
return(traceEventOperand);
}
public Expression Build(IEventTraceOperand operand, ParameterExpression eventRecordReader, ParameterExpression eventRecordWriter, ParameterExpression eventMetadataTable, ParameterExpression runtimeMetadata)
{
var eventMetadata = Expression.Parameter(typeof(EventMetadata));
var properties = Expression.Parameter(typeof(PropertyMetadata[]));
var variables = new List<ParameterExpression>
{
eventMetadata,
properties
};
var expGenerator = new ExpressionGenerator(eventRecordReader, eventRecordWriter, properties);
var list = new List<Expression>
{
Expression.Assign(eventMetadata, Expression.ArrayAccess(eventMetadataTable, Expression.Constant(operand.EventMetadataTableIndex))),
Expression.Assign(properties, Expression.PropertyOrField(eventMetadata, "Properties")),
eventRecordWriter.Call("WriteEventBegin", eventMetadata, runtimeMetadata),
expGenerator.CodeGenerate(operand.EventPropertyOperands),
eventRecordWriter.Call("WriteEventEnd")
};
var returnExpression = Expression.Block(variables, list);
return returnExpression;
}
