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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Telemetry and use counter functionality. */
#ifndef js_friend_UsageStatistics_h
#define js_friend_UsageStatistics_h
#include <stdint.h> // uint32_t
#include "jstypes.h" // JS_PUBLIC_API
struct JS_PUBLIC_API JSContext;
class JS_PUBLIC_API JSObject;
/*
* Telemetry reasons passed to the accumulate telemetry callback.
*
* It's OK for these enum values to change as they will be mapped to a fixed
* member of the mozilla::Telemetry::HistogramID enum by the callback.
*/
#define FOR_EACH_JS_METRIC(_) \
_(GC_REASON_2, Enumeration) \
_(GC_IS_COMPARTMENTAL, Boolean) \
_(GC_ZONE_COUNT, QuantityDistribution) \
_(GC_ZONES_COLLECTED, QuantityDistribution) \
_(GC_MS, TimeDuration_MS) \
_(GC_BUDGET_MS_2, TimeDuration_MS) \
_(GC_BUDGET_WAS_INCREASED, Boolean) \
_(GC_SLICE_WAS_LONG, Boolean) \
_(GC_BUDGET_OVERRUN, TimeDuration_US) \
_(GC_ANIMATION_MS, TimeDuration_MS) \
_(GC_MAX_PAUSE_MS_2, TimeDuration_MS) \
_(GC_PREPARE_MS, TimeDuration_MS) \
_(GC_MARK_MS, TimeDuration_MS) \
_(GC_SWEEP_MS, TimeDuration_MS) \
_(GC_COMPACT_MS, TimeDuration_MS) \
_(GC_MARK_ROOTS_US, TimeDuration_US) \
_(GC_MARK_GRAY_MS_2, TimeDuration_MS) \
_(GC_MARK_WEAK_MS, TimeDuration_MS) \
_(GC_SLICE_MS, TimeDuration_MS) \
_(GC_SLOW_PHASE, Enumeration) \
_(GC_SLOW_TASK, Enumeration) \
_(GC_MMU_50, Percentage) \
_(GC_RESET, Boolean) \
_(GC_RESET_REASON, Enumeration) \
_(GC_NON_INCREMENTAL, Boolean) \
_(GC_NON_INCREMENTAL_REASON, Enumeration) \
_(GC_MINOR_REASON, Enumeration) \
_(GC_MINOR_REASON_LONG, Enumeration) \
_(GC_MINOR_US, TimeDuration_US) \
_(GC_NURSERY_BYTES_2, MemoryDistribution) \
_(GC_PRETENURE_COUNT_2, QuantityDistribution) \
_(GC_NURSERY_PROMOTION_RATE, Percentage) \
_(GC_TENURED_SURVIVAL_RATE, Percentage) \
_(GC_MARK_RATE_2, QuantityDistribution) \
_(GC_TIME_BETWEEN_S, TimeDuration_S) \
_(GC_TIME_BETWEEN_SLICES_MS, TimeDuration_MS) \
_(GC_SLICE_COUNT, QuantityDistribution) \
_(DESERIALIZE_BYTES, MemoryDistribution) \
_(DESERIALIZE_ITEMS, QuantityDistribution) \
_(DESERIALIZE_US, TimeDuration_US) \
_(GC_EFFECTIVENESS, MemoryDistribution) \
_(GC_PARALLEL_MARK, Boolean) \
_(GC_PARALLEL_MARK_SPEEDUP, Integer) \
_(GC_PARALLEL_MARK_UTILIZATION, Percentage) \
_(GC_PARALLEL_MARK_INTERRUPTIONS, Integer) \
_(GC_TASK_START_DELAY_US, TimeDuration_US)
// clang-format off
#define ENUM_DEF(NAME, _) NAME,
enum class JSMetric {
FOR_EACH_JS_METRIC(ENUM_DEF)
Count
};
#undef ENUM_DEF
// clang-format on
using JSAccumulateTelemetryDataCallback = void (*)(JSMetric, uint32_t);
extern JS_PUBLIC_API void JS_SetAccumulateTelemetryCallback(
JSContext* cx, JSAccumulateTelemetryDataCallback callback);
/*
* Use counter names passed to the accumulate use counter callback.
*
* It's OK to for these enum values to change as they will be mapped to a
* fixed member of the mozilla::UseCounter enum by the callback.
*/
enum class JSUseCounter { ASMJS, WASM, WASM_LEGACY_EXCEPTIONS, LATE_WEEKDAY };
using JSSetUseCounterCallback = void (*)(JSObject*, JSUseCounter);
extern JS_PUBLIC_API void JS_SetSetUseCounterCallback(
JSContext* cx, JSSetUseCounterCallback callback);
#endif // js_friend_UsageStatistics_h
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