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Name	Size	Permission	Date
internal	[ DIR ]	drwxr-xr-x	2024-07-10 10:55
allocation.h	11.61 KB	-rw-r--r--	2024-02-13 21:40
common.h	695 B	-rw-r--r--	2024-02-13 21:40
cross-thread-persistent.h	14.69 KB	-rw-r--r--	2024-02-13 21:40
custom-space.h	2.4 KB	-rw-r--r--	2024-02-13 21:40
default-platform.h	2.18 KB	-rw-r--r--	2024-02-13 21:40
ephemeron-pair.h	804 B	-rw-r--r--	2024-02-13 21:40
explicit-management.h	3.29 KB	-rw-r--r--	2024-02-13 21:40
garbage-collected.h	3.11 KB	-rw-r--r--	2024-02-13 21:40
heap-consistency.h	9.69 KB	-rw-r--r--	2024-02-13 21:40
heap-state.h	2.57 KB	-rw-r--r--	2024-02-13 21:40
heap-statistics.h	3.87 KB	-rw-r--r--	2024-02-13 21:40
heap.h	5.74 KB	-rw-r--r--	2024-02-13 21:40
liveness-broker.h	2.29 KB	-rw-r--r--	2024-02-13 21:40
macros.h	865 B	-rw-r--r--	2024-02-13 21:40
member.h	10.65 KB	-rw-r--r--	2024-02-13 21:40
name-provider.h	1.95 KB	-rw-r--r--	2024-02-13 21:40
object-size-trait.h	1.6 KB	-rw-r--r--	2024-02-13 21:40
persistent.h	13.2 KB	-rw-r--r--	2024-02-13 21:40
platform.h	5.35 KB	-rw-r--r--	2024-02-13 21:40
prefinalizer.h	2.88 KB	-rw-r--r--	2024-02-13 21:40
process-heap-statistics.h	1009 B	-rw-r--r--	2024-02-13 21:40
sentinel-pointer.h	934 B	-rw-r--r--	2024-02-13 21:40
source-location.h	2.57 KB	-rw-r--r--	2024-02-13 21:40
testing.h	2.96 KB	-rw-r--r--	2024-02-13 21:40
trace-trait.h	3.05 KB	-rw-r--r--	2024-02-13 21:40
type-traits.h	7.44 KB	-rw-r--r--	2024-02-13 21:40
visitor.h	13.8 KB	-rw-r--r--	2024-02-13 21:40

Rename

// Copyright 2021 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 INCLUDE_CPPGC_HEAP_STATE_H_
#define INCLUDE_CPPGC_HEAP_STATE_H_

#include "v8config.h"  // NOLINT(build/include_directory)

namespace cppgc {

class HeapHandle;

namespace subtle {

/**
 * Helpers to peek into heap-internal state.
 */
class V8_EXPORT HeapState final {
 public:
  /**
   * Returns whether the garbage collector is marking. This API is experimental
   * and is expected to be removed in future.
   *
   * \param heap_handle The corresponding heap.
   * \returns true if the garbage collector is currently marking, and false
   *   otherwise.
   */
  static bool IsMarking(const HeapHandle& heap_handle);

/*
   * Returns whether the garbage collector is sweeping. This API is experimental
   * and is expected to be removed in future.
   *
   * \param heap_handle The corresponding heap.
   * \returns true if the garbage collector is currently sweeping, and false
   *   otherwise.
   */
  static bool IsSweeping(const HeapHandle& heap_handle);

/*
   * Returns whether the garbage collector is currently sweeping on the thread
   * owning this heap. This API allows the caller to determine whether it has
   * been called from a destructor of a managed object. This API is experimental
   * and may be removed in future.
   *
   * \param heap_handle The corresponding heap.
   * \returns true if the garbage collector is currently sweeping on this
   *   thread, and false otherwise.
   */
  static bool IsSweepingOnOwningThread(const HeapHandle& heap_handle);

/**
   * Returns whether the garbage collector is in the atomic pause, i.e., the
   * mutator is stopped from running. This API is experimental and is expected
   * to be removed in future.
   *
   * \param heap_handle The corresponding heap.
   * \returns true if the garbage collector is currently in the atomic pause,
   *   and false otherwise.
   */
  static bool IsInAtomicPause(const HeapHandle& heap_handle);

/**
   * Returns whether the last garbage collection was finalized conservatively
   * (i.e., with a non-empty stack). This API is experimental and is expected to
   * be removed in future.
   *
   * \param heap_handle The corresponding heap.
   * \returns true if the last garbage collection was finalized conservatively,
   * and false otherwise.
   */
  static bool PreviousGCWasConservative(const HeapHandle& heap_handle);

private:
  HeapState() = delete;
};

}  // namespace subtle
}  // namespace cppgc

#endif  // INCLUDE_CPPGC_HEAP_STATE_H_