53 lines
1.3 KiB
Swift
53 lines
1.3 KiB
Swift
//
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// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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import PromiseKit
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public extension YapDatabaseConnection {
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@objc
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func readWritePromise(_ block: @escaping (YapDatabaseReadWriteTransaction) -> Void) -> AnyPromise {
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return AnyPromise(readWritePromise(block) as Promise<Void>)
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}
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func readWritePromise(_ block: @escaping (YapDatabaseReadWriteTransaction) -> Void) -> Promise<Void> {
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return Promise { resolver in
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self.asyncReadWrite(block, completionBlock: { resolver.fulfill(()) })
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}
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}
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func read(_ block: @escaping (YapDatabaseReadTransaction) throws -> Void) throws {
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var errorToRaise: Error?
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read { transaction in
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do {
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try block(transaction)
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} catch {
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errorToRaise = error
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}
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}
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if let errorToRaise = errorToRaise {
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throw errorToRaise
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}
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}
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func readWrite(_ block: @escaping (YapDatabaseReadWriteTransaction) throws -> Void) throws {
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var errorToRaise: Error?
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readWrite { transaction in
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do {
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try block(transaction)
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} catch {
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errorToRaise = error
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}
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}
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if let errorToRaise = errorToRaise {
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throw errorToRaise
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}
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}
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}
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