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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2024 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import CAtomics
#if compiler(>=6.2)
#warning("We should be able to use atomics in the stdlib when we raise the deployment target to require Swift 6")
#endif
public final class AtomicBool: Sendable {
private nonisolated(unsafe) let atomic: UnsafeMutablePointer<CAtomicUInt32>
public init(initialValue: Bool) {
self.atomic = atomic_uint32_create(initialValue ? 1 : 0)
}
deinit {
atomic_uint32_destroy(atomic)
}
public var value: Bool {
get {
atomic_uint32_get(atomic) != 0
}
set {
atomic_uint32_set(atomic, newValue ? 1 : 0)
}
}
}
public final class AtomicUInt8: Sendable {
private nonisolated(unsafe) let atomic: UnsafeMutablePointer<CAtomicUInt32>
public init(initialValue: UInt8) {
self.atomic = atomic_uint32_create(UInt32(initialValue))
}
deinit {
atomic_uint32_destroy(atomic)
}
public var value: UInt8 {
get {
UInt8(atomic_uint32_get(atomic))
}
set {
atomic_uint32_set(atomic, UInt32(newValue))
}
}
}
public final class AtomicUInt32: Sendable {
private nonisolated(unsafe) let atomic: UnsafeMutablePointer<CAtomicUInt32>
public init(initialValue: UInt32) {
self.atomic = atomic_uint32_create(initialValue)
}
public var value: UInt32 {
get {
atomic_uint32_get(atomic)
}
set {
atomic_uint32_set(atomic, newValue)
}
}
deinit {
atomic_uint32_destroy(atomic)
}
public func fetchAndIncrement() -> UInt32 {
return atomic_uint32_fetch_and_increment(atomic)
}
}
public final class AtomicInt32: Sendable {
private nonisolated(unsafe) let atomic: UnsafeMutablePointer<CAtomicInt32>
public init(initialValue: Int32) {
self.atomic = atomic_int32_create(initialValue)
}
public var value: Int32 {
get {
atomic_int32_get(atomic)
}
set {
atomic_int32_set(atomic, newValue)
}
}
deinit {
atomic_int32_destroy(atomic)
}
public func fetchAndIncrement() -> Int32 {
return atomic_int32_fetch_and_increment(atomic)
}
}
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