mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
//===--- DispatchShims.h - Shims for dispatch vended APIs --------------------*- C++ -*-//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2022 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef SWIFT_CONCURRENCY_DISPATCHSHIMS_H
|
|
#define SWIFT_CONCURRENCY_DISPATCHSHIMS_H
|
|
|
|
#include "Concurrency.h"
|
|
|
|
#if SWIFT_CONCURRENCY_ENABLE_PRIORITY_ESCALATION
|
|
#include <dispatch/swift_concurrency_private.h>
|
|
|
|
#if SWIFT_CONCURRENCY_TASK_TO_THREAD_MODEL
|
|
#error Cannot use task-to-thread model with priority escalation
|
|
#endif
|
|
|
|
// Provide wrappers with runtime checks to make sure that the dispatch functions
|
|
// are only called on OS-es where they are supported
|
|
static inline dispatch_thread_override_info_s
|
|
swift_dispatch_thread_get_current_override_qos_floor()
|
|
{
|
|
if (__builtin_available(macOS 9998, iOS 9998, tvOS 9998, watchOS 9998, *)) {
|
|
return dispatch_thread_get_current_override_qos_floor();
|
|
}
|
|
|
|
return (dispatch_thread_override_info_s){
|
|
0, // can_override
|
|
0, // unused
|
|
QOS_CLASS_UNSPECIFIED, // override_qos_floor
|
|
};
|
|
}
|
|
|
|
static inline int
|
|
swift_dispatch_thread_override_self(qos_class_t override_qos) {
|
|
|
|
if (__builtin_available(macOS 9998, iOS 9998, tvOS 9998, watchOS 9998, *)) {
|
|
return dispatch_thread_override_self(override_qos);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
swift_dispatch_lock_override_start_with_debounce(dispatch_lock_t *lock_addr,
|
|
dispatch_tid_t expected_thread, qos_class_t override_to_apply) {
|
|
|
|
if (__builtin_available(macOS 9998, iOS 9998, tvOS 9998, watchOS 9998, *)) {
|
|
return dispatch_lock_override_start_with_debounce(lock_addr, expected_thread, override_to_apply);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
swift_dispatch_lock_override_end(qos_class_t override_to_end) {
|
|
if (__builtin_available(macOS 9998, iOS 9998, tvOS 9998, watchOS 9998, *)) {
|
|
return dispatch_lock_override_end(override_to_end);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#endif /* SWIFT_CONCURRENCY_DISPATCHSHIMS_H */
|