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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.
namespace System.Diagnostics.Tracing
{
#if FEATURE_PERFTRACING
/// <summary>
/// RuntimeEventSource is an EventSource that represents the ETW/EventPipe events emitted by the native runtime.
/// Most of RuntimeEventSource is auto-generated by scripts/genRuntimeEventSources.py based on the contents of the Microsoft-Windows-DotNETRuntime provider.
/// </summary>
internal sealed partial class RuntimeEventSource : EventSource
{
/// <summary>
/// Dispatch a single event with the specified event ID and payload.
/// </summary>
/// <param name="eventID">The eventID corresponding to the event as defined in the auto-generated portion of the RuntimeEventSource class.</param>
/// <param name="payload">A span pointing to the data payload for the event.</param>
[NonEvent]
internal unsafe void ProcessEvent(uint eventID, uint osThreadID, DateTime timeStamp, Guid activityId, Guid childActivityId, ReadOnlySpan<Byte> payload)
{
// Make sure the eventID is valid.
if (eventID >= m_eventData.Length)
{
return;
}
// Decode the payload.
object[] decodedPayloadFields = EventPipePayloadDecoder.DecodePayload(ref m_eventData[eventID], payload);
WriteToAllListeners(
eventId: (int)eventID,
osThreadId: &osThreadID,
timeStamp: &timeStamp,
activityID: &activityId,
childActivityID: &childActivityId,
args: decodedPayloadFields);
}
}
#endif // FEATURE_PERFTRACING
}
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