| // Copyright 2020 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_LOGGING_TRACING_FLAGS_H_ |
| #define V8_LOGGING_TRACING_FLAGS_H_ |
| |
| #include <atomic> |
| |
| #include "src/base/macros.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| // This struct contains a set of flags that can be modified from multiple |
| // threads at runtime unlike the normal FLAG_-like flags which are not modified |
| // after V8 instance is initialized. |
| |
| struct TracingFlags { |
| static V8_EXPORT_PRIVATE std::atomic_uint runtime_stats; |
| static V8_EXPORT_PRIVATE std::atomic_uint gc; |
| static V8_EXPORT_PRIVATE std::atomic_uint gc_stats; |
| static V8_EXPORT_PRIVATE std::atomic_uint ic_stats; |
| static V8_EXPORT_PRIVATE std::atomic_uint zone_stats; |
| |
| static bool is_runtime_stats_enabled() { |
| return runtime_stats.load(std::memory_order_relaxed) != 0; |
| } |
| |
| static bool is_gc_enabled() { |
| return gc.load(std::memory_order_relaxed) != 0; |
| } |
| |
| static bool is_gc_stats_enabled() { |
| return gc_stats.load(std::memory_order_relaxed) != 0; |
| } |
| |
| static bool is_ic_stats_enabled() { |
| return ic_stats.load(std::memory_order_relaxed) != 0; |
| } |
| |
| static bool is_zone_stats_enabled() { |
| return zone_stats.load(std::memory_order_relaxed) != 0; |
| } |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_LOGGING_TRACING_FLAGS_H_ |