Abseil Common Libraries (C++) (grcp 依赖)
https://abseil.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
2.1 KiB
56 lines
2.1 KiB
4 years ago
|
// Copyright 2019 The Abseil 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
|
||
|
|
//
|
||
|
|
// https://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 ABSL_STRINGS_INTERNAL_CORDZ_STATISTICS_H_
|
||
|
|
#define ABSL_STRINGS_INTERNAL_CORDZ_STATISTICS_H_
|
||
|
|
|
||
|
|
#include <cstdint>
|
||
|
|
|
||
|
|
#include "absl/base/config.h"
|
||
|
|
|
||
|
|
namespace absl {
|
||
|
|
ABSL_NAMESPACE_BEGIN
|
||
|
|
namespace cord_internal {
|
||
|
|
|
||
|
|
// CordzStatistics captures some meta information about a Cord's shape.
|
||
|
|
struct CordzStatistics {
|
||
|
|
// The size of the cord in bytes. This matches the result of Cord::size().
|
||
|
|
int64_t size = 0;
|
||
|
|
|
||
|
|
// The estimated memory used by the sampled cord. This value matches the
|
||
|
|
// value as reported by Cord::EstimatedMemoryUsage().
|
||
|
|
// A value of 0 implies the property has not been recorded.
|
||
|
|
int64_t estimated_memory_usage = 0;
|
||
|
|
|
||
|
|
// The effective memory used by the sampled cord, inversely weighted by the
|
||
|
|
// effective indegree of each allocated node. This is a representation of the
|
||
|
|
// fair share of memory usage that should be attributed to the sampled cord.
|
||
|
|
// This value is more useful for cases where one or more nodes are referenced
|
||
|
|
// by multiple Cord instances, and for cases where a Cord includes the same
|
||
|
|
// node multiple times (either directly or indirectly).
|
||
|
|
// A value of 0 implies the property has not been recorded.
|
||
|
|
int64_t estimated_fair_share_memory_usage = 0;
|
||
|
|
|
||
|
|
// The total number of nodes referenced by this cord.
|
||
|
|
// For ring buffer Cords, this includes the 'ring buffer' node.
|
||
|
|
// A value of 0 implies the property has not been recorded.
|
||
|
|
int64_t node_count = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace cord_internal
|
||
|
|
ABSL_NAMESPACE_END
|
||
|
|
} // namespace absl
|
||
|
|
|
||
|
|
#endif // ABSL_STRINGS_INTERNAL_CORDZ_STATISTICS_H_
|