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// 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;
#ifdef V8_RUNTIME_CALL_STATS
static bool is_runtime_stats_enabled() {
return runtime_stats.load(std::memory_order_relaxed) != 0;
}
#endif
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_
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