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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#ifndef __EVENTPIPE_METADATAGENERATOR_H__
#define __EVENTPIPE_METADATAGENERATOR_H__
#ifdef FEATURE_PERFTRACING
enum class EventPipeEventLevel;
// Represents the type of an event parameter.
// This enum is derived from the managed TypeCode type, though
// not all of these values are available in TypeCode.
// For example, Guid does not exist in TypeCode.
enum class EventPipeParameterType
{
Empty = 0, // Null reference
Object = 1, // Instance that isn't a value
DBNull = 2, // Database null value
Boolean = 3, // Boolean
Char = 4, // Unicode character
SByte = 5, // Signed 8-bit integer
Byte = 6, // Unsigned 8-bit integer
Int16 = 7, // Signed 16-bit integer
UInt16 = 8, // Unsigned 16-bit integer
Int32 = 9, // Signed 32-bit integer
UInt32 = 10, // Unsigned 32-bit integer
Int64 = 11, // Signed 64-bit integer
UInt64 = 12, // Unsigned 64-bit integer
Single = 13, // IEEE 32-bit float
Double = 14, // IEEE 64-bit double
Decimal = 15, // Decimal
DateTime = 16, // DateTime
Guid = 17, // Guid
String = 18, // Unicode character string
};
// Contains the metadata associated with an EventPipe event parameter.
struct EventPipeParameterDesc
{
EventPipeParameterType Type;
LPCWSTR Name;
};
// Generates metadata for an event emitted by the EventPipe.
class EventPipeMetadataGenerator
{
public:
static BYTE* GenerateEventMetadata(
unsigned int eventID,
LPCWSTR pEventName,
INT64 keywords,
unsigned int version,
EventPipeEventLevel level,
EventPipeParameterDesc *pParams,
unsigned int paramCount,
size_t &metadataLength);
};
#endif // FEATURE_PERFTRACING
#endif // __EVENTPIPE_METADATAGENERATOR_H__
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