mirror of
https://github.com/firebase/firebase-ios-sdk
synced 2026-11-11 22:55:59 +05:45
Gil
729b8d176c
* Move all Firestore files to Objective-C++
* Update project file references
* Don't use module imports from Objective-C++
* Use extern "C" for C-accessible globals
* Work around more stringent type checking in Objective-C++
* NSMutableDictionary ivars aren't implicitly casted to NSDictionary
* FSTMaybeDocument callback can't be passed a function that accepts
FSTDocument
* NSComparisonResult can't be multiplied by -1 without casting
* Add a #include <inttypes.h> where needed
* Avoid using C++ keywords as variables
* Remove #if __cplusplus guards
90 lines
2.4 KiB
Plaintext
90 lines
2.4 KiB
Plaintext
/*
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* Copyright 2017 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "Firestore/Source/Local/FSTEagerGarbageCollector.h"
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#import "Firestore/Source/Model/FSTDocumentKey.h"
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NS_ASSUME_NONNULL_BEGIN
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#pragma mark - FSTMultiReferenceSet
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@interface FSTEagerGarbageCollector ()
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/** The garbage collectible sources to double-check during garbage collection. */
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@property(nonatomic, strong, readonly) NSMutableArray<id<FSTGarbageSource>> *sources;
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/** A set of potentially garbage keys. */
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@property(nonatomic, strong, readonly) NSMutableSet<FSTDocumentKey *> *potentialGarbage;
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@end
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@implementation FSTEagerGarbageCollector
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- (instancetype)init {
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self = [super init];
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if (self) {
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_sources = [NSMutableArray array];
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_potentialGarbage = [[NSMutableSet alloc] init];
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}
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return self;
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}
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- (BOOL)isEager {
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return YES;
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}
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- (void)addGarbageSource:(id<FSTGarbageSource>)garbageSource {
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[self.sources addObject:garbageSource];
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garbageSource.garbageCollector = self;
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}
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- (void)removeGarbageSource:(id<FSTGarbageSource>)garbageSource {
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[self.sources removeObject:garbageSource];
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garbageSource.garbageCollector = nil;
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}
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- (void)addPotentialGarbageKey:(FSTDocumentKey *)key {
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[self.potentialGarbage addObject:key];
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}
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- (NSMutableSet<FSTDocumentKey *> *)collectGarbage {
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NSMutableArray<id<FSTGarbageSource>> *sources = self.sources;
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NSMutableSet<FSTDocumentKey *> *actualGarbage = [NSMutableSet set];
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for (FSTDocumentKey *key in self.potentialGarbage) {
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BOOL isGarbage = YES;
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for (id<FSTGarbageSource> source in sources) {
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if ([source containsKey:key]) {
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isGarbage = NO;
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break;
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}
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}
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if (isGarbage) {
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[actualGarbage addObject:key];
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}
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}
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// Clear locally retained potential keys and returned confirmed garbage.
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[self.potentialGarbage removeAllObjects];
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return actualGarbage;
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}
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@end
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NS_ASSUME_NONNULL_END
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