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appleguy
465abb1ded
* [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses)
With permission of the Facebook Open Source team, we are simplifying the Texture
license so that clients can rely on the Apache 2 terms that most of Texture is
already covered by. This means that code originally forked from AsyncDisplayKit
will be re-licensed from "BSD 3-clause + PATENTS v2" to Apache 2 without a
PATENTS file.
After getting confirmation that the updates to these core files look good, we'll
propagate this new license header to all files (in this same PR) and get sign-off
from all parties before landing.
* [License] Update all Texture source files to be pure Apache 2.
* Changelog entry for Apache 2 license update.
* Revert "[License] Update all Texture source files to be pure Apache 2."
This reverts commit ffa0fbbba9.
* [License] Update all Texture source files to be pure Apache 2, maintaining copyrights.
* [License] Update CONTRIBUTING, README, Podspec & Dangerfile.
89 lines
3.2 KiB
Objective-C
89 lines
3.2 KiB
Objective-C
//
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// _ASAsyncTransactionGroup.m
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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 <AsyncDisplayKit/ASAssert.h>
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#import <AsyncDisplayKit/_ASAsyncTransaction.h>
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#import <AsyncDisplayKit/_ASAsyncTransactionGroup.h>
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#import <AsyncDisplayKit/_ASAsyncTransactionContainer.h>
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#import <AsyncDisplayKit/_ASAsyncTransactionContainer+Private.h>
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@implementation _ASAsyncTransactionGroup {
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NSHashTable<id<ASAsyncTransactionContainer>> *_containers;
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}
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+ (_ASAsyncTransactionGroup *)mainTransactionGroup
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{
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ASDisplayNodeAssertMainThread();
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static _ASAsyncTransactionGroup *mainTransactionGroup;
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if (mainTransactionGroup == nil) {
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mainTransactionGroup = [[_ASAsyncTransactionGroup alloc] _init];
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[mainTransactionGroup registerAsMainRunloopObserver];
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}
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return mainTransactionGroup;
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}
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- (void)registerAsMainRunloopObserver
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{
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ASDisplayNodeAssertMainThread();
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static CFRunLoopObserverRef observer;
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ASDisplayNodeAssert(observer == NULL, @"A _ASAsyncTransactionGroup should not be registered on the main runloop twice");
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// defer the commit of the transaction so we can add more during the current runloop iteration
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CFRunLoopRef runLoop = CFRunLoopGetCurrent();
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CFOptionFlags activities = (kCFRunLoopBeforeWaiting | // before the run loop starts sleeping
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kCFRunLoopExit); // before exiting a runloop run
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observer = CFRunLoopObserverCreateWithHandler(NULL, // allocator
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activities, // activities
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YES, // repeats
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INT_MAX, // order after CA transaction commits
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^(CFRunLoopObserverRef observer, CFRunLoopActivity activity) {
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ASDisplayNodeCAssertMainThread();
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[self commit];
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});
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CFRunLoopAddObserver(runLoop, observer, kCFRunLoopCommonModes);
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CFRelease(observer);
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}
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- (instancetype)_init
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{
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if ((self = [super init])) {
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_containers = [NSHashTable hashTableWithOptions:NSHashTableObjectPointerPersonality];
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}
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return self;
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}
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- (void)addTransactionContainer:(id<ASAsyncTransactionContainer>)container
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{
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ASDisplayNodeAssertMainThread();
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ASDisplayNodeAssert(container != nil, @"No container");
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[_containers addObject:container];
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}
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- (void)commit
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{
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ASDisplayNodeAssertMainThread();
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if ([_containers count]) {
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NSHashTable *containersToCommit = _containers;
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_containers = [NSHashTable hashTableWithOptions:NSHashTableObjectPointerPersonality];
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for (id<ASAsyncTransactionContainer> container in containersToCommit) {
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// Note that the act of committing a transaction may open a new transaction,
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// so we must nil out the transaction we're committing first.
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_ASAsyncTransaction *transaction = container.asyncdisplaykit_currentAsyncTransaction;
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container.asyncdisplaykit_currentAsyncTransaction = nil;
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[transaction commit];
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}
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}
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}
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@end
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