1 files changed, 74 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/lib/swift/Sources/TMemoryBufferTransport.swift b/src/jaegertracing/thrift/lib/swift/Sources/TMemoryBufferTransport.swift
new file mode 100644
index 000000000..bd58b6ef7
--- /dev/null
+++ b/src/jaegertracing/thrift/lib/swift/Sources/TMemoryBufferTransport.swift
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import Foundation
+
+public class TMemoryBufferTransport : TTransport {
+  public private(set) var readBuffer = Data()
+  public private(set) var writeBuffer = Data()
+  
+  public private(set) var position = 0
+
+  public var bytesRemainingInBuffer: Int {
+    return readBuffer.count - position
+  }
+  
+  public func consumeBuffer(size: Int) {
+    position += size
+  }
+  public func clear() {
+    readBuffer = Data()
+    writeBuffer = Data()
+  }
+  
+  
+  private var flushHandler: ((TMemoryBufferTransport, Data) -> ())?
+  
+  public init(flushHandler: ((TMemoryBufferTransport, Data) -> ())? = nil) {
+    self.flushHandler = flushHandler
+  }
+  
+  public convenience init(readBuffer: Data, flushHandler: ((TMemoryBufferTransport, Data) -> ())? = nil) {
+    self.init()
+    self.readBuffer = readBuffer
+  }
+  
+  public func reset(readBuffer: Data = Data(), writeBuffer: Data = Data()) {
+    self.readBuffer = readBuffer
+    self.writeBuffer = writeBuffer
+  }
+  
+  public func read(size: Int) throws -> Data {
+    let amountToRead = min(bytesRemainingInBuffer, size)
+    if amountToRead > 0 {
+      let ret = readBuffer.subdata(in: Range(uncheckedBounds: (lower: position, upper: position + amountToRead)))
+      position += ret.count
+      return ret
+    }
+    return Data()
+  }
+  
+  public func write(data: Data) throws {
+    writeBuffer.append(data)
+  }
+  
+  public func flush() throws {
+    flushHandler?(self, writeBuffer)
+  }
+}