30 lines
1.2 KiB
C
30 lines
1.2 KiB
C
//
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// Copyright 2024 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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NS_ASSUME_NONNULL_BEGIN
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// The block is executed immediately if called from the
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// main thread; otherwise it is dispatched async to the
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// main thread.
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void DispatchMainThreadSafe(dispatch_block_t block);
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// The block is executed immediately if called from the
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// main thread; otherwise it is dispatched sync to the
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// main thread.
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void DispatchSyncMainThreadSafe(dispatch_block_t block);
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/// Returns YES if the result returned from dispatch_get_current_queue() matches
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/// the provided queue. There's all sorts of different circumstances where these queue
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/// comparisons may fail (queue hierarchies, etc.) so this should only be used optimistically
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/// for perf optimizations. This should never be used to determine if some pattern of block dispatch is deadlock free.
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BOOL DispatchQueueIsCurrentQueue(dispatch_queue_t queue);
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/// Returns a value [0.0, 1.0] indicating the proportion of the current thread's stack that's in-use
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/// Returns NaN on any unexpected error
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/// Only for use in SignalServiceKit's promise implementation. Please do not use.
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double _CurrentStackUsage(void);
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NS_ASSUME_NONNULL_END
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