64206b2d83
Replace a manual fetch/or/store sequence with fetch_or. Bug: chromium:1056170 Change-Id: Ib18d26686aa6e822f91b5b6662dd0bdcfafe5092 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2531788 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Omer Katz <omerkatz@chromium.org> Auto-Submit: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Omer Katz <omerkatz@chromium.org> Cr-Commit-Position: refs/heads/master@{#71129}
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef INCLUDE_CPPGC_INTERNAL_API_CONSTANTS_H_
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#define INCLUDE_CPPGC_INTERNAL_API_CONSTANTS_H_
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#include <stddef.h>
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#include <stdint.h>
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#include "v8config.h" // NOLINT(build/include_directory)
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namespace cppgc {
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namespace internal {
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// Embedders should not rely on this code!
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// Internal constants to avoid exposing internal types on the API surface.
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namespace api_constants {
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constexpr size_t kKB = 1024;
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constexpr size_t kMB = kKB * 1024;
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constexpr size_t kGB = kMB * 1024;
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// Offset of the uint16_t bitfield from the payload contaning the
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// in-construction bit. This is subtracted from the payload pointer to get
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// to the right bitfield.
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static constexpr size_t kFullyConstructedBitFieldOffsetFromPayload =
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2 * sizeof(uint16_t);
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// Mask for in-construction bit.
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static constexpr uint16_t kFullyConstructedBitMask = uint16_t{1};
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static constexpr size_t kPageSize = size_t{1} << 17;
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static constexpr size_t kLargeObjectSizeThreshold = kPageSize / 2;
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#if defined(CPPGC_CAGED_HEAP)
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constexpr size_t kCagedHeapReservationSize = static_cast<size_t>(4) * kGB;
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constexpr size_t kCagedHeapReservationAlignment = kCagedHeapReservationSize;
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#endif
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} // namespace api_constants
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} // namespace internal
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} // namespace cppgc
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#endif // INCLUDE_CPPGC_INTERNAL_API_CONSTANTS_H_
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