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eeda39aea2
Adds an `IsSuspended` field to `AsyncTaskInfo`, which is the same value as `HasTaskDependency`, but uses the `Is<State>` naming to match `IsEnqueued`, `IsRunning`, and `IsComplete`. Based on the docs in Task.h: ```cpp /// A task can have the following states: /// * suspended: In this state, a task is considered not runnable /// * enqueued: In this state, a task is considered runnable /// * running on a thread /// * completed ``` rdar://148663671
207 lines
6.1 KiB
C++
207 lines
6.1 KiB
C++
//===--- RuntimeInternals.h - Runtime Internal Structures -------*- 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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// Runtime data structures that Reflection inspects externally.
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//
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// FIXME: Ideally the original definitions would be templatized on a Runtime
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// parameter and we could use the original definitions in both the runtime and
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// in Reflection.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_REFLECTION_RUNTIME_INTERNALS_H
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#define SWIFT_REFLECTION_RUNTIME_INTERNALS_H
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#include <stdint.h>
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namespace swift {
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namespace reflection {
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template <typename Runtime>
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struct ConformanceNode {
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typename Runtime::StoredPointer Left, Right;
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typename Runtime::StoredPointer Type;
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typename Runtime::StoredPointer Proto;
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typename Runtime::StoredPointer Description;
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typename Runtime::StoredSize FailureGeneration;
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};
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template <typename Runtime>
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struct MetadataAllocation {
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uint16_t Tag;
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typename Runtime::StoredPointer Ptr;
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unsigned Size;
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};
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template <typename Runtime> struct MetadataCacheNode {
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typename Runtime::StoredPointer Left;
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typename Runtime::StoredPointer Right;
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};
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template <typename Runtime> struct ConcurrentHashMap {
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uint32_t ReaderCount;
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uint32_t ElementCount;
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typename Runtime::StoredPointer Elements;
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typename Runtime::StoredPointer Indices;
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// We'll ignore the remaining fields for now....
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};
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template <typename Runtime> struct ConformanceCacheEntry {
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typename Runtime::StoredPointer Type;
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typename Runtime::StoredSignedPointer Proto;
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typename Runtime::StoredPointer Witness;
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};
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template <typename Runtime>
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struct HeapObject {
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typename Runtime::StoredSignedPointer Metadata;
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typename Runtime::StoredSize RefCounts;
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};
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template <typename Runtime>
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struct Job {
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HeapObject<Runtime> HeapObject;
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typename Runtime::StoredPointer SchedulerPrivate[2];
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uint32_t Flags;
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uint32_t Id;
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typename Runtime::StoredPointer Reserved[2];
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typename Runtime::StoredSignedPointer RunJob;
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};
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template <typename Runtime>
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struct StackAllocator {
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typename Runtime::StoredPointer LastAllocation;
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typename Runtime::StoredPointer FirstSlab;
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int32_t NumAllocatedSlabsAndFirstSlabIsPreallocated;
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struct Slab {
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typename Runtime::StoredPointer Metadata;
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typename Runtime::StoredPointer Next;
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uint32_t Capacity;
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uint32_t CurrentOffset;
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};
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};
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template <typename Runtime>
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struct ActiveTaskStatusWithEscalation {
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uint32_t Flags[1];
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uint32_t ExecutionLock[(sizeof(typename Runtime::StoredPointer) == 8) ? 1 : 2];
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typename Runtime::StoredPointer Record;
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};
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template <typename Runtime>
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struct ActiveTaskStatusWithoutEscalation {
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uint32_t Flags[sizeof(typename Runtime::StoredPointer) == 8 ? 2 : 1];
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typename Runtime::StoredPointer Record;
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};
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struct ActiveTaskStatusFlags {
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static const uint32_t PriorityMask = 0xFF;
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static const uint32_t IsCancelled = 0x100;
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static const uint32_t IsStatusRecordLocked = 0x200;
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static const uint32_t IsEscalated = 0x400;
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static const uint32_t IsRunning = 0x800;
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static const uint32_t IsEnqueued = 0x1000;
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static const uint32_t IsComplete = 0x2000;
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static const uint32_t HasTaskDependency = 0x4000;
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};
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template <typename Runtime, typename ActiveTaskStatus>
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struct AsyncTaskPrivateStorage {
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typename Runtime::StoredPointer ExclusivityAccessSet[2];
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ActiveTaskStatus Status;
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StackAllocator<Runtime> Allocator;
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typename Runtime::StoredPointer Local;
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uint32_t Id;
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typename Runtime::StoredSize BasePriority;
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typename Runtime::StoredPointer DependencyRecord;
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};
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template <typename Runtime, typename ActiveTaskStatus>
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struct AsyncTask: Job<Runtime> {
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// On 64-bit, there's a Reserved64 after ResumeContext.
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typename Runtime::StoredPointer ResumeContextAndReserved[
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sizeof(typename Runtime::StoredPointer) == 8 ? 2 : 1];
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AsyncTaskPrivateStorage<Runtime, ActiveTaskStatus> PrivateStorage;
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};
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template <typename Runtime>
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struct AsyncContext {
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typename Runtime::StoredSignedPointer Parent;
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typename Runtime::StoredSignedPointer ResumeParent;
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};
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template <typename Runtime>
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struct AsyncContextPrefix {
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typename Runtime::StoredSignedPointer AsyncEntryPoint;
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typename Runtime::StoredPointer ClosureContext;
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typename Runtime::StoredPointer ErrorResult;
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};
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template <typename Runtime>
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struct FutureAsyncContextPrefix {
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typename Runtime::StoredPointer IndirectResult;
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typename Runtime::StoredSignedPointer AsyncEntryPoint;
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typename Runtime::StoredPointer ClosureContext;
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typename Runtime::StoredPointer ErrorResult;
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};
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template <typename Runtime>
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struct alignas(2 * sizeof(typename Runtime::StoredPointer))
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ActiveActorStatusWithEscalation {
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uint32_t Flags[1];
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uint32_t DrainLock[(sizeof(typename Runtime::StoredPointer) == 8) ? 1 : 2];
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typename Runtime::StoredPointer FirstJob;
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};
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template <typename Runtime>
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struct alignas(2 * sizeof(typename Runtime::StoredPointer))
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ActiveActorStatusWithoutEscalation {
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uint32_t Flags[sizeof(typename Runtime::StoredPointer) == 8 ? 2 : 1];
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typename Runtime::StoredPointer FirstJob;
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};
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template <typename Runtime, typename ActiveActorStatus>
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struct DefaultActorImpl {
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HeapObject<Runtime> HeapObject;
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bool IsDistributedRemote;
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ActiveActorStatus Status;
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};
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template <typename Runtime>
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struct TaskStatusRecord {
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typename Runtime::StoredSize Flags;
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typename Runtime::StoredPointer Parent;
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};
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template <typename Runtime>
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struct ChildTaskStatusRecord : TaskStatusRecord<Runtime> {
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typename Runtime::StoredPointer FirstChild;
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};
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template <typename Runtime>
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struct TaskGroupTaskStatusRecord : TaskStatusRecord<Runtime> {
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typename Runtime::StoredPointer FirstChild;
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};
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template <typename Runtime>
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struct ChildFragment {
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typename Runtime::StoredPointer Parent;
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typename Runtime::StoredPointer NextChild;
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};
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} // end namespace reflection
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} // end namespace swift
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#endif // SWIFT_REFLECTION_RUNTIME_INTERNALS_H
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