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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/. */
#ifndef _MOZJEMALLOC_PROFILING_H
#define _MOZJEMALLOC_PROFILING_H
#include "mozilla/RefCounted.h"
#include "mozilla/RefPtr.h"
#include "mozilla/TimeStamp.h"
#include "mozjemalloc_types.h"
#include "mozmemory_wrap.h"
namespace mozilla {
struct PurgeStats {
arena_id_t arena_id;
const char* arena_label;
const char* caller;
// The number of previously-dirty pages that are now clean.
size_t pages_dirty = 0;
// The total number of pages that were cleaned (includes previously an pages).
size_t pages_total = 0;
// The number of pages that can't be purged because of alignment because
// of logical/hardware page alignment.
size_t pages_unpurgable = 0;
size_t system_calls = 0;
size_t chunks = 0;
PurgeStats(arena_id_t aId, const char* aLabel, const char* aCaller)
: arena_id(aId), arena_label(aLabel), caller(aCaller) {}
};
#ifdef MOZJEMALLOC_PROFILING_CALLBACKS
class MallocProfilerCallbacks
: public external::AtomicRefCounted<MallocProfilerCallbacks> {
public:
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(MallocProfilerCallbacks)
virtual ~MallocProfilerCallbacks() {}
using TS = mozilla::TimeStamp;
virtual void OnPurge(TS aStart, TS aEnd, const PurgeStats& aStats,
ArenaPurgeResult aResult) = 0;
};
MOZ_JEMALLOC_API void jemalloc_set_profiler_callbacks(
RefPtr<MallocProfilerCallbacks>&& aCallbacks);
#endif
} // namespace mozilla
#endif // ! _MOZJEMALLOC_PROFILING_H
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