[Concurrency] Fixes from initial review.

al45tair · al45tair · commit ff1575a17218 · 2025-03-11T14:52:30.000Z
Rename `DispatchTaskExecutor` to `DispatchGlobalTaskExecutor` as we
may want to use the former for an executor that runs things on an
arbitrary Dispatch queue.

Rename `DispatchExecutor` to `DispatchExecutorProtocol`; again, we
might want the name for something else.

Add `@Sendable` attribute to `registerEvent`.

Fix missing `extern "C" SWIFT_CC(swift)` on `_swift_exit` (merge
error).

Remove stray whitespace from `CMakeLists.txt`

rdar://141348916
diff --git a/stdlib/public/Concurrency/CFExecutor.swift b/stdlib/public/Concurrency/CFExecutor.swift
@@ -59,7 +59,8 @@ public final class CFMainExecutor: DispatchMainExecutor, @unchecked Sendable {
 // .. Task Executor ............................................................
 
 @available(SwiftStdlib 6.2, *)
-public final class CFTaskExecutor: DispatchTaskExecutor, @unchecked Sendable {
+public final class CFTaskExecutor: DispatchGlobalTaskExecutor,
+                                   @unchecked Sendable {
 
 }
 
diff --git a/stdlib/public/Concurrency/CMakeLists.txt b/stdlib/public/Concurrency/CMakeLists.txt
@@ -179,7 +179,7 @@ set(SWIFT_RUNTIME_CONCURRENCY_NONEMBEDDED_SWIFT_SOURCES
 
 set(SWIFT_RUNTIME_CONCURRENCY_EMBEDDED_SWIFT_SOURCES
   PlatformExecutorEmbedded.swift
-  )
+)
 
 add_swift_target_library(swift_Concurrency ${SWIFT_STDLIB_LIBRARY_BUILD_TYPES} IS_STDLIB
   ${SWIFT_RUNTIME_CONCURRENCY_C_SOURCES}
diff --git a/stdlib/public/Concurrency/DispatchExecutor.swift b/stdlib/public/Concurrency/DispatchExecutor.swift
@@ -84,7 +84,9 @@ extension DispatchMainExecutor: SerialExecutor {
 extension DispatchMainExecutor: EventableExecutor {
 
   /// Register a new event with a given handler.
-  public func registerEvent(handler: @escaping () -> ()) -> ExecutorEvent {
+  public func registerEvent(
+    handler: @escaping @Sendable () -> ()
+  ) -> ExecutorEvent {
     let source = _createDispatchEvent(handler: handler)
 
     // Stash the pointer in the id of the ExecutorEvent struct
@@ -114,7 +116,7 @@ extension DispatchMainExecutor: MainExecutor {}
 // .. Task Executor ............................................................
 
 @available(SwiftStdlib 6.2, *)
-public class DispatchTaskExecutor: TaskExecutor, @unchecked Sendable {
+public class DispatchGlobalTaskExecutor: TaskExecutor, @unchecked Sendable {
 
   public init() {}
 
@@ -156,7 +158,7 @@ public class DispatchTaskExecutor: TaskExecutor, @unchecked Sendable {
 /// It is used to help convert instants and durations from arbitrary `Clock`s
 /// to Dispatch's time base.
 @available(SwiftStdlib 6.2, *)
-protocol DispatchExecutor: Executor {
+protocol DispatchExecutorProtocol: Executor {
 
   /// Convert an `Instant` from the specified clock to a tuple identifying
   /// the Dispatch clock and the seconds and nanoseconds components.
@@ -184,7 +186,7 @@ enum DispatchClockID: CInt {
 }
 
 @available(SwiftStdlib 6.2, *)
-extension DispatchExecutor {
+extension DispatchExecutorProtocol {
 
   func timestamp<C: Clock>(for instant: C.Instant, clock: C)
     -> (clockID: DispatchClockID, seconds: Int64, nanoseconds: Int64) {
@@ -218,11 +220,11 @@ extension DispatchExecutor {
 }
 
 @available(SwiftStdlib 6.2, *)
-extension DispatchTaskExecutor: DispatchExecutor {
+extension DispatchGlobalTaskExecutor: DispatchExecutorProtocol {
 }
 
 @available(SwiftStdlib 6.2, *)
-extension DispatchMainExecutor: DispatchExecutor {
+extension DispatchMainExecutor: DispatchExecutorProtocol {
 }
 
 #endif // !$Embedded
diff --git a/stdlib/public/Concurrency/Executor.swift b/stdlib/public/Concurrency/Executor.swift
@@ -555,7 +555,7 @@ public protocol EventableExecutor {
   /// - handler:  The handler to call when the event fires.
   ///
   /// Returns a new opaque `Event`.
-  func registerEvent(handler: @escaping () -> ()) -> ExecutorEvent
+  func registerEvent(handler: @escaping @Sendable () -> ()) -> ExecutorEvent
 
   /// Deregister the given event.
   ///
diff --git a/stdlib/public/Concurrency/ExecutorBridge.cpp b/stdlib/public/Concurrency/ExecutorBridge.cpp
@@ -22,6 +22,7 @@ using namespace swift;
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wreturn-type-c-linkage"
 
+extern "C" SWIFT_CC(swift)
 void _swift_exit(int result) {
   exit(result);
 }
diff --git a/stdlib/public/Concurrency/ExecutorBridge.swift b/stdlib/public/Concurrency/ExecutorBridge.swift
@@ -121,14 +121,14 @@ internal func _createDispatchEventC(
 ) -> OpaquePointer
 
 fileprivate class DispatchEventHandlerBox {
-  var handler: () -> ()
-  init(handler: @escaping () -> ()) {
+  var handler: @Sendable () -> ()
+  init(handler: @escaping @Sendable () -> ()) {
     self.handler = handler
   }
 }
 
 @available(SwiftStdlib 6.2, *)
-internal func _createDispatchEvent(handler: @escaping () -> ()) -> OpaquePointer {
+internal func _createDispatchEvent(handler: @escaping @Sendable () -> ()) -> OpaquePointer {
   let boxed = DispatchEventHandlerBox(handler: handler)
   let opaqueHandlerBox = Unmanaged.passRetained(boxed).toOpaque()
   return _createDispatchEventC(
diff --git a/stdlib/public/Concurrency/PlatformExecutorDarwin.swift b/stdlib/public/Concurrency/PlatformExecutorDarwin.swift
@@ -28,7 +28,7 @@ public struct PlatformExecutorFactory: ExecutorFactory {
     if CoreFoundation.isPresent {
       return CFTaskExecutor()
     } else {
-      return DispatchTaskExecutor()
+      return DispatchGlobalTaskExecutor()
     }
   }
 }
diff --git a/stdlib/public/Concurrency/PlatformExecutorLinux.swift b/stdlib/public/Concurrency/PlatformExecutorLinux.swift
@@ -18,7 +18,8 @@ import Swift
 @available(SwiftStdlib 6.2, *)
 public struct PlatformExecutorFactory: ExecutorFactory {
   public static let mainExecutor: any MainExecutor = DispatchMainExecutor()
-  public static let defaultExecutor: any TaskExecutor = DispatchTaskExecutor()
+  public static let defaultExecutor: any TaskExecutor
+    = DispatchGlobalTaskExecutor()
 }
 
 #endif // os(Linux)
diff --git a/stdlib/public/Concurrency/PlatformExecutorWindows.swift b/stdlib/public/Concurrency/PlatformExecutorWindows.swift
@@ -18,7 +18,8 @@ import Swift
 @available(SwiftStdlib 6.2, *)
 public struct PlatformExecutorFactory: ExecutorFactory {
   public static let mainExecutor: any MainExecutor = DispatchMainExecutor()
-  public static let defaultExecutor: any TaskExecutor = DispatchTaskExecutor()
+  public static let defaultExecutor: any TaskExecutor =
+    DispatchGlobalTaskExecutor()
 }
 
 #endif // os(Windows)
diff --git a/test/Concurrency/Runtime/custom_main_executor.swift b/test/Concurrency/Runtime/custom_main_executor.swift
@@ -20,7 +20,7 @@ struct SimpleExecutorFactory: ExecutorFactory {
   }
   public static var defaultExecutor: any TaskExecutor {
     print("Creating task executor")
-    return DispatchTaskExecutor()
+    return DispatchGlobalTaskExecutor()
   }
 }
 
@@ -60,7 +60,7 @@ final class SimpleMainExecutor: MainExecutor, @unchecked Sendable {
     shouldStop = true
   }
 
-  func registerEvent(handler: @escaping () -> ()) -> ExecutorEvent {
+  func registerEvent(handler: @escaping @Sendable () -> ()) -> ExecutorEvent {
     return ExecutorEvent(id: 0)
   }
 
diff --git a/test/abi/Inputs/macOS/arm64/concurrency/baseline-asserts b/test/abi/Inputs/macOS/arm64/concurrency/baseline-asserts
@@ -474,12 +474,12 @@ _$ss11JobPriorityVMn
 _$ss11JobPriorityVN
 _$ss11JobPriorityVSLsMc
 _$ss11JobPriorityVSQsMc
-_$ss12SwiftSettingVsE16defaultIsolationyABScA_pXpSgFZ
 _$ss12MainExecutorMp
 _$ss12MainExecutorPScfTb
 _$ss12MainExecutorPs07RunLoopB0Tb
 _$ss12MainExecutorPs09EventableB0Tb
 _$ss12MainExecutorTL
+_$ss12SwiftSettingVsE16defaultIsolationyABScA_pXpSgFZ
 _$ss13ExecutorEventV1loiySbAB_ABtFZ
 _$ss13ExecutorEventV2eeoiySbAB_ABtFZ
 _$ss13ExecutorEventV2idABSi_tcfC
@@ -629,8 +629,8 @@ _$ss16AsyncMapSequenceVyxq_GScisMc
 _$ss17EventableExecutorMp
 _$ss17EventableExecutorP10deregister5eventys0B5EventV_tFTj
 _$ss17EventableExecutorP10deregister5eventys0B5EventV_tFTq
-_$ss17EventableExecutorP13registerEvent7handlers0bD0Vyyc_tFTj
-_$ss17EventableExecutorP13registerEvent7handlers0bD0Vyyc_tFTq
+_$ss17EventableExecutorP13registerEvent7handlers0bD0VyyYbc_tFTj
+_$ss17EventableExecutorP13registerEvent7handlers0bD0VyyYbc_tFTq
 _$ss17EventableExecutorP6notify5eventys0B5EventV_tFTj
 _$ss17EventableExecutorP6notify5eventys0B5EventV_tFTq
 _$ss17EventableExecutorTL
@@ -727,7 +727,7 @@ _$ss20DispatchMainExecutorC02isbC0Sbvg
 _$ss20DispatchMainExecutorC02isbC0SbvpMV
 _$ss20DispatchMainExecutorC10deregister5eventys0C5EventV_tF
 _$ss20DispatchMainExecutorC13checkIsolatedyyF
-_$ss20DispatchMainExecutorC13registerEvent7handlers0cE0Vyyc_tF
+_$ss20DispatchMainExecutorC13registerEvent7handlers0cE0VyyYbc_tF
 _$ss20DispatchMainExecutorC18supportsSchedulingSbvg
 _$ss20DispatchMainExecutorC18supportsSchedulingSbvpMV
 _$ss20DispatchMainExecutorC3runyyKFTj
@@ -759,32 +759,6 @@ _$ss20DispatchMainExecutorCs09EventableC0sMc
 _$ss20DispatchMainExecutorCs09EventableC0sWP
 _$ss20DispatchMainExecutorCs0bC0sMc
 _$ss20DispatchMainExecutorCs0bC0sWP
-_$ss20DispatchTaskExecutorC06isMainC0SbvgTj
-_$ss20DispatchTaskExecutorC06isMainC0SbvgTq
-_$ss20DispatchTaskExecutorC06isMainC0SbvpMV
-_$ss20DispatchTaskExecutorC18supportsSchedulingSbvgTj
-_$ss20DispatchTaskExecutorC18supportsSchedulingSbvgTq
-_$ss20DispatchTaskExecutorC18supportsSchedulingSbvpMV
-_$ss20DispatchTaskExecutorC7enqueue_2at9tolerance5clockys0C3JobVn_7InstantQz8DurationQzSgxts5ClockRzlFTj
-_$ss20DispatchTaskExecutorC7enqueue_2at9tolerance5clockys0C3JobVn_7InstantQz8DurationQzSgxts5ClockRzlFTq
-_$ss20DispatchTaskExecutorC7enqueueyys0C3JobVnFTj
-_$ss20DispatchTaskExecutorC7enqueueyys0C3JobVnFTq
-_$ss20DispatchTaskExecutorCABycfC
-_$ss20DispatchTaskExecutorCABycfCTj
-_$ss20DispatchTaskExecutorCABycfCTq
-_$ss20DispatchTaskExecutorCABycfc
-_$ss20DispatchTaskExecutorCMa
-_$ss20DispatchTaskExecutorCMm
-_$ss20DispatchTaskExecutorCMn
-_$ss20DispatchTaskExecutorCMo
-_$ss20DispatchTaskExecutorCMu
-_$ss20DispatchTaskExecutorCN
-_$ss20DispatchTaskExecutorCScFsMc
-_$ss20DispatchTaskExecutorCScFsWP
-_$ss20DispatchTaskExecutorCSchsMc
-_$ss20DispatchTaskExecutorCSchsWP
-_$ss20DispatchTaskExecutorCfD
-_$ss20DispatchTaskExecutorCfd
 _$ss21withThrowingTaskGroup2of9returning4bodyq_xm_q_mq_Scgyxs5Error_pGzYaKXEtYaKr0_lF
 _$ss21withThrowingTaskGroup2of9returning4bodyq_xm_q_mq_Scgyxs5Error_pGzYaKXEtYaKr0_lFTu
 _$ss21withUnsafeCurrentTask4bodyxxSctSgKXE_tKlF
@@ -920,6 +894,32 @@ _$ss24AsyncThrowingMapSequenceVMa
 _$ss24AsyncThrowingMapSequenceVMn
 _$ss24AsyncThrowingMapSequenceV_9transformAByxq_Gx_q_7ElementQzYaKctcfC
 _$ss24AsyncThrowingMapSequenceVyxq_GScisMc
+_$ss26DispatchGlobalTaskExecutorC06isMainD0SbvgTj
+_$ss26DispatchGlobalTaskExecutorC06isMainD0SbvgTq
+_$ss26DispatchGlobalTaskExecutorC06isMainD0SbvpMV
+_$ss26DispatchGlobalTaskExecutorC18supportsSchedulingSbvgTj
+_$ss26DispatchGlobalTaskExecutorC18supportsSchedulingSbvgTq
+_$ss26DispatchGlobalTaskExecutorC18supportsSchedulingSbvpMV
+_$ss26DispatchGlobalTaskExecutorC7enqueue_2at9tolerance5clockys0D3JobVn_7InstantQz8DurationQzSgxts5ClockRzlFTj
+_$ss26DispatchGlobalTaskExecutorC7enqueue_2at9tolerance5clockys0D3JobVn_7InstantQz8DurationQzSgxts5ClockRzlFTq
+_$ss26DispatchGlobalTaskExecutorC7enqueueyys0D3JobVnFTj
+_$ss26DispatchGlobalTaskExecutorC7enqueueyys0D3JobVnFTq
+_$ss26DispatchGlobalTaskExecutorCABycfC
+_$ss26DispatchGlobalTaskExecutorCABycfCTj
+_$ss26DispatchGlobalTaskExecutorCABycfCTq
+_$ss26DispatchGlobalTaskExecutorCABycfc
+_$ss26DispatchGlobalTaskExecutorCMa
+_$ss26DispatchGlobalTaskExecutorCMm
+_$ss26DispatchGlobalTaskExecutorCMn
+_$ss26DispatchGlobalTaskExecutorCMo
+_$ss26DispatchGlobalTaskExecutorCMu
+_$ss26DispatchGlobalTaskExecutorCN
+_$ss26DispatchGlobalTaskExecutorCScFsMc
+_$ss26DispatchGlobalTaskExecutorCScFsWP
+_$ss26DispatchGlobalTaskExecutorCSchsMc
+_$ss26DispatchGlobalTaskExecutorCSchsWP
+_$ss26DispatchGlobalTaskExecutorCfD
+_$ss26DispatchGlobalTaskExecutorCfd
 _$ss26_enqueueJobGlobalWithDelayyys6UInt64V_ScJtF
 _$ss27AsyncThrowingFilterSequenceV04makeA8IteratorAB0F0Vyx_GyF
 _$ss27AsyncThrowingFilterSequenceV10isIncludedySb7ElementQzYaKcvg
diff --git a/test/abi/Inputs/macOS/x86_64/concurrency/baseline-asserts b/test/abi/Inputs/macOS/x86_64/concurrency/baseline-asserts
@@ -474,12 +474,12 @@ _$ss11JobPriorityVMn
 _$ss11JobPriorityVN
 _$ss11JobPriorityVSLsMc
 _$ss11JobPriorityVSQsMc
-_$ss12SwiftSettingVsE16defaultIsolationyABScA_pXpSgFZ
 _$ss12MainExecutorMp
 _$ss12MainExecutorPScfTb
 _$ss12MainExecutorPs07RunLoopB0Tb
 _$ss12MainExecutorPs09EventableB0Tb
 _$ss12MainExecutorTL
+_$ss12SwiftSettingVsE16defaultIsolationyABScA_pXpSgFZ
 _$ss13ExecutorEventV1loiySbAB_ABtFZ
 _$ss13ExecutorEventV2eeoiySbAB_ABtFZ
 _$ss13ExecutorEventV2idABSi_tcfC
@@ -629,8 +629,8 @@ _$ss16AsyncMapSequenceVyxq_GScisMc
 _$ss17EventableExecutorMp
 _$ss17EventableExecutorP10deregister5eventys0B5EventV_tFTj
 _$ss17EventableExecutorP10deregister5eventys0B5EventV_tFTq
-_$ss17EventableExecutorP13registerEvent7handlers0bD0Vyyc_tFTj
-_$ss17EventableExecutorP13registerEvent7handlers0bD0Vyyc_tFTq
+_$ss17EventableExecutorP13registerEvent7handlers0bD0VyyYbc_tFTj
+_$ss17EventableExecutorP13registerEvent7handlers0bD0VyyYbc_tFTq
 _$ss17EventableExecutorP6notify5eventys0B5EventV_tFTj
 _$ss17EventableExecutorP6notify5eventys0B5EventV_tFTq
 _$ss17EventableExecutorTL
@@ -727,7 +727,7 @@ _$ss20DispatchMainExecutorC02isbC0Sbvg
 _$ss20DispatchMainExecutorC02isbC0SbvpMV
 _$ss20DispatchMainExecutorC10deregister5eventys0C5EventV_tF
 _$ss20DispatchMainExecutorC13checkIsolatedyyF
-_$ss20DispatchMainExecutorC13registerEvent7handlers0cE0Vyyc_tF
+_$ss20DispatchMainExecutorC13registerEvent7handlers0cE0VyyYbc_tF
 _$ss20DispatchMainExecutorC18supportsSchedulingSbvg
 _$ss20DispatchMainExecutorC18supportsSchedulingSbvpMV
 _$ss20DispatchMainExecutorC3runyyKFTj
@@ -759,32 +759,6 @@ _$ss20DispatchMainExecutorCs09EventableC0sMc
 _$ss20DispatchMainExecutorCs09EventableC0sWP
 _$ss20DispatchMainExecutorCs0bC0sMc
 _$ss20DispatchMainExecutorCs0bC0sWP
-_$ss20DispatchTaskExecutorC06isMainC0SbvgTj
-_$ss20DispatchTaskExecutorC06isMainC0SbvgTq
-_$ss20DispatchTaskExecutorC06isMainC0SbvpMV
-_$ss20DispatchTaskExecutorC18supportsSchedulingSbvgTj
-_$ss20DispatchTaskExecutorC18supportsSchedulingSbvgTq
-_$ss20DispatchTaskExecutorC18supportsSchedulingSbvpMV
-_$ss20DispatchTaskExecutorC7enqueue_2at9tolerance5clockys0C3JobVn_7InstantQz8DurationQzSgxts5ClockRzlFTj
-_$ss20DispatchTaskExecutorC7enqueue_2at9tolerance5clockys0C3JobVn_7InstantQz8DurationQzSgxts5ClockRzlFTq
-_$ss20DispatchTaskExecutorC7enqueueyys0C3JobVnFTj
-_$ss20DispatchTaskExecutorC7enqueueyys0C3JobVnFTq
-_$ss20DispatchTaskExecutorCABycfC
-_$ss20DispatchTaskExecutorCABycfCTj
-_$ss20DispatchTaskExecutorCABycfCTq
-_$ss20DispatchTaskExecutorCABycfc
-_$ss20DispatchTaskExecutorCMa
-_$ss20DispatchTaskExecutorCMm
-_$ss20DispatchTaskExecutorCMn
-_$ss20DispatchTaskExecutorCMo
-_$ss20DispatchTaskExecutorCMu
-_$ss20DispatchTaskExecutorCN
-_$ss20DispatchTaskExecutorCScFsMc
-_$ss20DispatchTaskExecutorCScFsWP
-_$ss20DispatchTaskExecutorCSchsMc
-_$ss20DispatchTaskExecutorCSchsWP
-_$ss20DispatchTaskExecutorCfD
-_$ss20DispatchTaskExecutorCfd
 _$ss21withThrowingTaskGroup2of9returning4bodyq_xm_q_mq_Scgyxs5Error_pGzYaKXEtYaKr0_lF
 _$ss21withThrowingTaskGroup2of9returning4bodyq_xm_q_mq_Scgyxs5Error_pGzYaKXEtYaKr0_lFTu
 _$ss21withUnsafeCurrentTask4bodyxxSctSgKXE_tKlF
@@ -920,6 +894,32 @@ _$ss24AsyncThrowingMapSequenceVMa
 _$ss24AsyncThrowingMapSequenceVMn
 _$ss24AsyncThrowingMapSequenceV_9transformAByxq_Gx_q_7ElementQzYaKctcfC
 _$ss24AsyncThrowingMapSequenceVyxq_GScisMc
+_$ss26DispatchGlobalTaskExecutorC06isMainD0SbvgTj
+_$ss26DispatchGlobalTaskExecutorC06isMainD0SbvgTq
+_$ss26DispatchGlobalTaskExecutorC06isMainD0SbvpMV
+_$ss26DispatchGlobalTaskExecutorC18supportsSchedulingSbvgTj
+_$ss26DispatchGlobalTaskExecutorC18supportsSchedulingSbvgTq
+_$ss26DispatchGlobalTaskExecutorC18supportsSchedulingSbvpMV
+_$ss26DispatchGlobalTaskExecutorC7enqueue_2at9tolerance5clockys0D3JobVn_7InstantQz8DurationQzSgxts5ClockRzlFTj
+_$ss26DispatchGlobalTaskExecutorC7enqueue_2at9tolerance5clockys0D3JobVn_7InstantQz8DurationQzSgxts5ClockRzlFTq
+_$ss26DispatchGlobalTaskExecutorC7enqueueyys0D3JobVnFTj
+_$ss26DispatchGlobalTaskExecutorC7enqueueyys0D3JobVnFTq
+_$ss26DispatchGlobalTaskExecutorCABycfC
+_$ss26DispatchGlobalTaskExecutorCABycfCTj
+_$ss26DispatchGlobalTaskExecutorCABycfCTq
+_$ss26DispatchGlobalTaskExecutorCABycfc
+_$ss26DispatchGlobalTaskExecutorCMa
+_$ss26DispatchGlobalTaskExecutorCMm
+_$ss26DispatchGlobalTaskExecutorCMn
+_$ss26DispatchGlobalTaskExecutorCMo
+_$ss26DispatchGlobalTaskExecutorCMu
+_$ss26DispatchGlobalTaskExecutorCN
+_$ss26DispatchGlobalTaskExecutorCScFsMc
+_$ss26DispatchGlobalTaskExecutorCScFsWP
+_$ss26DispatchGlobalTaskExecutorCSchsMc
+_$ss26DispatchGlobalTaskExecutorCSchsWP
+_$ss26DispatchGlobalTaskExecutorCfD
+_$ss26DispatchGlobalTaskExecutorCfd
 _$ss26_enqueueJobGlobalWithDelayyys6UInt64V_ScJtF
 _$ss27AsyncThrowingFilterSequenceV04makeA8IteratorAB0F0Vyx_GyF
 _$ss27AsyncThrowingFilterSequenceV10isIncludedySb7ElementQzYaKcvg

Original file line number	Diff line number	Diff line change
`@@ -59,7 +59,8 @@ public final class CFMainExecutor: DispatchMainExecutor, @unchecked Sendable {`
`59`	`59`	`// .. Task Executor ............................................................`
`60`	`60`
`61`	`61`	`@available(SwiftStdlib 6.2, *)`
`62`		`-public final class CFTaskExecutor: DispatchTaskExecutor, @unchecked Sendable {`
	`62`	`+public final class CFTaskExecutor: DispatchGlobalTaskExecutor,`
	`63`	`+ @unchecked Sendable {`
`63`	`64`
`64`	`65`	`}`
`65`	`66`
Original file line number	Diff line number	Diff line change
`@@ -22,6 +22,7 @@ using namespace swift;`
`22`	`22`	`#pragma clang diagnostic push`
`23`	`23`	`#pragma clang diagnostic ignored "-Wreturn-type-c-linkage"`
`24`	`24`
	`25`	`+extern "C" SWIFT_CC(swift)`
`25`	`26`	`void _swift_exit(int result) {`
`26`	`27`	`exit(result);`
`27`	`28`	`}`
Original file line number	Diff line number	Diff line change
`@@ -28,7 +28,7 @@ public struct PlatformExecutorFactory: ExecutorFactory {`
`28`	`28`	`if CoreFoundation.isPresent {`
`29`	`29`	`return CFTaskExecutor()`
`30`	`30`	`} else {`
`31`		`- return DispatchTaskExecutor()`
	`31`	`+ return DispatchGlobalTaskExecutor()`
`32`	`32`	`}`
`33`	`33`	`}`
`34`	`34`	`}`
Original file line number	Diff line number	Diff line change
`@@ -18,7 +18,8 @@ import Swift`
`18`	`18`	`@available(SwiftStdlib 6.2, *)`
`19`	`19`	`public struct PlatformExecutorFactory: ExecutorFactory {`
`20`	`20`	`public static let mainExecutor: any MainExecutor = DispatchMainExecutor()`
`21`		`- public static let defaultExecutor: any TaskExecutor = DispatchTaskExecutor()`
	`21`	`+ public static let defaultExecutor: any TaskExecutor`
	`22`	`+ = DispatchGlobalTaskExecutor()`
`22`	`23`	`}`
`23`	`24`
`24`	`25`	`#endif // os(Linux)`
Original file line number	Diff line number	Diff line change
`@@ -20,7 +20,7 @@ struct SimpleExecutorFactory: ExecutorFactory {`
`20`	`20`	`}`
`21`	`21`	`public static var defaultExecutor: any TaskExecutor {`
`22`	`22`	`print("Creating task executor")`
`23`		`- return DispatchTaskExecutor()`
	`23`	`+ return DispatchGlobalTaskExecutor()`
`24`	`24`	`}`
`25`	`25`	`}`
`26`	`26`
`@@ -60,7 +60,7 @@ final class SimpleMainExecutor: MainExecutor, @unchecked Sendable {`
`60`	`60`	`shouldStop = true`
`61`	`61`	`}`
`62`	`62`
`63`		`- func registerEvent(handler: @escaping () -> ()) -> ExecutorEvent {`
	`63`	`+ func registerEvent(handler: @escaping @Sendable () -> ()) -> ExecutorEvent {`
`64`	`64`	`return ExecutorEvent(id: 0)`
`65`	`65`	`}`
`66`	`66`