mirror of
https://github.com/firebase/firebase-ios-sdk
synced 2026-11-11 22:55:59 +05:45
Greg Soltis
4afaafdc77
* Start work on leveldb transactions * Style * Working API. Not plumbed in yet * Move files into correct place * Wrangling file locations and associations * Tests pass * Add some comments * style * Fix copyright * Rewrite iterator internals to handle deletion-while-iterating. Also add tests for same * Switch to strings instead of slices * Style * More style fixes * Start switching writegroup over * Swap out write group tracking for transaction usage * Style * Response to feedback before updating docs * Style * Add comment * Initialize version_ * Satisfy the linter * Start switching writegroup over * Swap out write group tracking for transaction usage * Style * Checkpoint before implementing BatchDescription * Style * Everything passing * Drop unused function * Style * Renaming * Style * Add log line * Style * Add debug log line for commits, drop unused BatchDescription
62 lines
1.9 KiB
Objective-C
62 lines
1.9 KiB
Objective-C
/*
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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 <Foundation/Foundation.h>
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#include <memory>
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#import "Firestore/Source/Local/FSTQueryCache.h"
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#include "Firestore/core/src/firebase/firestore/local/leveldb_transaction.h"
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#include "leveldb/db.h"
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@class FSTLocalSerializer;
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@class FSTPBTargetGlobal;
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@protocol FSTGarbageCollector;
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NS_ASSUME_NONNULL_BEGIN
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/** Cached Queries backed by LevelDB. */
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@interface FSTLevelDBQueryCache : NSObject <FSTQueryCache>
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/**
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* Retrieves the global singleton metadata row from the given database, if it exists.
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* TODO(gsoltis): remove this method once fully ported to transactions.
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*/
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+ (nullable FSTPBTargetGlobal *)readTargetMetadataFromDB:(std::shared_ptr<leveldb::DB>)db;
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/**
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* Retrieves the global singleton metadata row using the given transaction, if it exists.
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*/
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+ (nullable FSTPBTargetGlobal *)readTargetMetadataWithTransaction:
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(firebase::firestore::local::LevelDbTransaction *)transaction;
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- (instancetype)init NS_UNAVAILABLE;
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/** The garbage collector to notify about potential garbage keys. */
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@property(nonatomic, weak, readwrite, nullable) id<FSTGarbageCollector> garbageCollector;
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/**
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* Creates a new query cache in the given LevelDB.
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*
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* @param db The LevelDB in which to create the cache.
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*/
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- (instancetype)initWithDB:(std::shared_ptr<leveldb::DB>)db
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serializer:(FSTLocalSerializer *)serializer NS_DESIGNATED_INITIALIZER;
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@end
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NS_ASSUME_NONNULL_END
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