mirror of
https://github.com/apple/swift.git
synced 2026-06-20 15:42:51 +02:00
Doug Gregor
4f1a0b7016
The Embedded Swift concurrency library needs a way to exit the program at the end of async main. The existing implementation calls through a _swift_exit() function to the POSIX/C exit(). Enshrine _swift_exit() as part of the Platform Abstraction Layer, with the same signature (albeit in C), and implement it in the PAL-on-POSIX library as a call through to exit().
98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
//===--- ExecutorBridge.cpp - C++ side of executor bridge -----------------===//
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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 - 2025 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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#if SWIFT_CONCURRENCY_USES_DISPATCH
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#include <dispatch/dispatch.h>
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#endif
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#include "swift/Threading/Once.h"
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#include "Error.h"
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#include "ExecutorBridge.h"
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#include "TaskPrivate.h"
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using namespace swift;
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wreturn-type-c-linkage"
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#if !SWIFT_CONCURRENCY_EMBEDDED || !SWIFT_USE_EMBEDDED_SWIFT_PLATFORM
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// When using the Embedded Swift Platform Abstraction Layer, _swift_exit is
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// provided by the platform, so we don't define it here.
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extern "C"
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void _swift_exit(int result) {
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exit(result);
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}
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#endif
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extern "C" SWIFT_CC(swift)
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void swift_createDefaultExecutorsOnce() {
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static swift::once_t createExecutorsOnce;
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swift::once(createExecutorsOnce, swift_createDefaultExecutors);
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}
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#if SWIFT_STDLIB_TASK_TO_THREAD_MODEL_CONCURRENCY
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extern "C" SWIFT_CC(swift)
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SerialExecutorRef swift_getMainExecutor() {
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return SerialExecutorRef::generic();
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}
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#endif
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extern "C" SWIFT_CC(swift)
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void _swift_task_checkIsolatedSwift(HeapObject *executor,
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const Metadata *executorType,
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const SerialExecutorWitnessTable *witnessTable);
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extern "C" SWIFT_CC(swift)
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uint8_t swift_job_getPriority(Job *job) {
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return (uint8_t)(job->getPriority());
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}
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extern "C" SWIFT_CC(swift)
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void swift_job_setPriority(Job *job, uint8_t priority) {
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job->setPriority(JobPriority(priority));
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}
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extern "C" SWIFT_CC(swift)
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uint8_t swift_job_getKind(Job *job) {
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return (uint8_t)(job->Flags.getKind());
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}
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extern "C" SWIFT_CC(swift)
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void *swift_job_getExecutorPrivateData(Job *job) {
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return &job->SchedulerPrivate[0];
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}
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#if SWIFT_CONCURRENCY_USES_DISPATCH
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extern "C" SWIFT_CC(swift) __attribute__((noreturn))
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void swift_dispatchMain() {
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dispatch_main();
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}
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extern "C" SWIFT_CC(swift)
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void swift_dispatchAssertMainQueue() {
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dispatch_assert_queue(dispatch_get_main_queue());
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}
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extern "C" SWIFT_CC(swift)
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void *swift_getDispatchQueueForExecutor(SerialExecutorRef executor) {
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if (executor.getRawImplementation() == (uintptr_t)_swift_task_getDispatchQueueSerialExecutorWitnessTable()) {
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return executor.getIdentity();
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}
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return nullptr;
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}
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#endif // SWIFT_CONCURRENCY_USES_DISPATCH
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#pragma clang diagnostic pop
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