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dd4359db7b
* Optimize ASCATransactionQueue. This queue is very busy, and it runs on the main thread so it's important for it to be fast. Avoid waking up the run loop for every single node. Avoid a ton of NSPointerArray overhead that we don't need. Avoid retain/release traffic on the singleton by using an inline function. I confirmed that in release mode, the static __strong is correctly inlined and no ARC traffic is incurred. * Comment * Unlock right * Remove magic number
70 lines
2.1 KiB
Plaintext
70 lines
2.1 KiB
Plaintext
//
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// ASDisplayNodeTestsHelper.mm
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// Texture
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//
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// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
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// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import "ASDisplayNodeTestsHelper.h"
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#import <AsyncDisplayKit/ASDisplayNode.h>
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#import <AsyncDisplayKit/ASLayout.h>
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#import <AsyncDisplayKit/ASRunLoopQueue.h>
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#import <QuartzCore/QuartzCore.h>
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#import <libkern/OSAtomic.h>
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// Poll the condition 1000 times a second.
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static CFTimeInterval kSingleRunLoopTimeout = 0.001;
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// Time out after 30 seconds.
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static CFTimeInterval kTimeoutInterval = 30.0f;
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BOOL ASDisplayNodeRunRunLoopUntilBlockIsTrue(as_condition_block_t block)
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{
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CFTimeInterval timeoutDate = CACurrentMediaTime() + kTimeoutInterval;
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BOOL passed = NO;
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while (true) {
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OSMemoryBarrier();
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passed = block();
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OSMemoryBarrier();
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if (passed) {
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break;
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}
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CFTimeInterval now = CACurrentMediaTime();
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if (now > timeoutDate) {
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break;
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}
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// Run until the poll timeout or until timeoutDate, whichever is first.
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CFTimeInterval runLoopTimeout = MIN(kSingleRunLoopTimeout, timeoutDate - now);
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CFRunLoopRunInMode(kCFRunLoopDefaultMode, runLoopTimeout, true);
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}
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return passed;
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}
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void ASDisplayNodeSizeToFitSize(ASDisplayNode *node, CGSize size)
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{
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CGSize sizeThatFits = [node layoutThatFits:ASSizeRangeMake(size)].size;
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node.bounds = (CGRect){.origin = CGPointZero, .size = sizeThatFits};
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}
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void ASDisplayNodeSizeToFitSizeRange(ASDisplayNode *node, ASSizeRange sizeRange)
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{
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CGSize sizeThatFits = [node layoutThatFits:sizeRange].size;
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node.bounds = (CGRect){.origin = CGPointZero, .size = sizeThatFits};
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}
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void ASCATransactionQueueWait(ASCATransactionQueue *q)
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{
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if (!q) { q = ASCATransactionQueueGet(); }
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NSDate *date = [NSDate dateWithTimeIntervalSinceNow:1];
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BOOL whileResult = YES;
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while ([date timeIntervalSinceNow] > 0 &&
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(whileResult = ![q isEmpty])) {
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[[NSRunLoop currentRunLoop] runUntilDate:
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[NSDate dateWithTimeIntervalSinceNow:0.01]];
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}
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}
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