75 lines
2.2 KiB
Swift
75 lines
2.2 KiB
Swift
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import Foundation
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public class TMemoryBufferTransport : TTransport {
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public private(set) var readBuffer = Data()
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public private(set) var writeBuffer = Data()
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public private(set) var position = 0
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public var bytesRemainingInBuffer: Int {
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return readBuffer.count - position
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}
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public func consumeBuffer(size: Int) {
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position += size
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}
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public func clear() {
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readBuffer = Data()
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writeBuffer = Data()
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}
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private var flushHandler: ((TMemoryBufferTransport, Data) -> ())?
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public init(flushHandler: ((TMemoryBufferTransport, Data) -> ())? = nil) {
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self.flushHandler = flushHandler
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}
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public convenience init(readBuffer: Data, flushHandler: ((TMemoryBufferTransport, Data) -> ())? = nil) {
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self.init()
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self.readBuffer = readBuffer
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}
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public func reset(readBuffer: Data = Data(), writeBuffer: Data = Data()) {
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self.readBuffer = readBuffer
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self.writeBuffer = writeBuffer
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}
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public func read(size: Int) throws -> Data {
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let amountToRead = min(bytesRemainingInBuffer, size)
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if amountToRead > 0 {
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let ret = readBuffer.subdata(in: Range(uncheckedBounds: (lower: position, upper: position + amountToRead)))
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position += ret.count
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return ret
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}
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return Data()
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}
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public func write(data: Data) throws {
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writeBuffer.append(data)
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}
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public func flush() throws {
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flushHandler?(self, writeBuffer)
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}
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}
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