| //===--- TaskPrivate.h - Concurrency library internal interface -*- C++ -*-===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2020 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Internal functions for the concurrency library. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SWIFT_CONCURRENCY_TASKPRIVATE_H |
| #define SWIFT_CONCURRENCY_TASKPRIVATE_H |
| |
| namespace swift { |
| |
| class AsyncTask; |
| |
| /// Initialize the task-local allocator in the given task. |
| void _swift_task_alloc_initialize(AsyncTask *task); |
| |
| /// Destroy the task-local allocator in the given task. |
| void _swift_task_alloc_destroy(AsyncTask *task); |
| |
| #if defined(SWIFT_STDLIB_SINGLE_THREADED_RUNTIME) |
| #define SWIFT_CONCURRENCY_COOPERATIVE_GLOBAL_EXECUTOR 1 |
| #elif !__APPLE__ |
| // FIXME: this is a terrible workaround for our temporary |
| // inability to link libdispatch. |
| #define SWIFT_CONCURRENCY_COOPERATIVE_GLOBAL_EXECUTOR 1 |
| #else |
| #define SWIFT_CONCURRENCY_COOPERATIVE_GLOBAL_EXECUTOR 0 |
| #endif |
| |
| #if SWIFT_CONCURRENCY_COOPERATIVE_GLOBAL_EXECUTOR |
| /// Donate this thread to the global executor until either the |
| /// given condition returns true or we've run out of cooperative |
| /// tasks to run. |
| void donateThreadToGlobalExecutorUntil(bool (*condition)(void*), |
| void *context); |
| #endif |
| |
| } // end namespace swift |
| |
| #endif |
