chromium/third_party/grpc/src/src/core/lib/debug/event_log.h

// Copyright 2022 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef GRPC_SRC_CORE_LIB_DEBUG_EVENT_LOG_H
#define GRPC_SRC_CORE_LIB_DEBUG_EVENT_LOG_H

#include <grpc/support/port_platform.h>

#include <stdint.h>

#include <atomic>
#include <string>
#include <vector>

#include "absl/base/thread_annotations.h"
#include "absl/strings/string_view.h"
#include "absl/types/span.h"

#include "src/core/lib/gpr/time_precise.h"
#include "src/core/lib/gprpp/per_cpu.h"
#include "src/core/lib/gprpp/sync.h"

namespace grpc_core {

// Debug utility to collect a burst of events and then later log them as a
// detailed sequence.
// Collects (timestamp, counter-name, delta) and gives back a csv with
// timestamps and accumulated values for each counter in separate columns.
class EventLog { … };

}  // namespace grpc_core

#endif  // GRPC_SRC_CORE_LIB_DEBUG_EVENT_LOG_H