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56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
//===--- Actor.h - ABI structures for actors --------------------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Swift ABI describing actors.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_ABI_ACTOR_BACKDEPLOYED_H
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#define SWIFT_ABI_ACTOR_BACKDEPLOYED_H
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#include "swift/ABI/HeapObject.h"
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#include "swift/ABI/MetadataValues.h"
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#include "ConditionVariable.h"
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namespace swift {
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/// The default actor implementation. This is the layout of both
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/// the DefaultActor and NSDefaultActor classes.
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class alignas(Alignment_DefaultActor) DefaultActor : public HeapObject {
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public:
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// These constructors do not initialize the actor instance, and the
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// destructor does not destroy the actor instance; you must call
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// swift_defaultActor_{initialize,destroy} yourself.
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constexpr DefaultActor(const HeapMetadata *metadata)
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: HeapObject(metadata), PrivateData{} {
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initHeapObject();
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}
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constexpr DefaultActor(const HeapMetadata *metadata,
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InlineRefCounts::Immortal_t immortal)
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: HeapObject(metadata, immortal), PrivateData{} {
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// By a lucky coincidence, the modern bit pattern for immortal objects also
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// sets the immortal bit for older runtimes, so we don't need an immortal
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// equivalent to initHeapObject().
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}
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void initHeapObject() {
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_swift_instantiateInertHeapObject(this, metadata);
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}
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void *PrivateData[NumWords_DefaultActor];
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};
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} // end namespace swift
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#endif
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