1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef NET_SPDY_SPDY_BUFFER_QUEUE_H_ 6 #define NET_SPDY_SPDY_BUFFER_QUEUE_H_ 7 8 #include <cstddef> 9 #include <deque> 10 11 #include "base/basictypes.h" 12 #include "base/memory/scoped_ptr.h" 13 #include "net/base/net_export.h" 14 15 namespace net { 16 17 class SpdyBuffer; 18 19 // A FIFO queue of incoming data from a SPDY connection. Useful for 20 // SpdyStream delegates. 21 class NET_EXPORT_PRIVATE SpdyReadQueue { 22 public: 23 SpdyReadQueue(); 24 ~SpdyReadQueue(); 25 26 // Returns whether there's anything in the queue. 27 bool IsEmpty() const; 28 29 // Returns the total number of bytes in the queue. 30 size_t GetTotalSize() const; 31 32 // Enqueues the bytes in |buffer|. 33 void Enqueue(scoped_ptr<SpdyBuffer> buffer); 34 35 // Dequeues up to |len| (which must be positive) bytes into 36 // |out|. Returns the number of bytes dequeued. 37 size_t Dequeue(char* out, size_t len); 38 39 // Removes all bytes from the queue. 40 void Clear(); 41 42 private: 43 std::deque<SpdyBuffer*> queue_; 44 size_t total_size_; 45 46 DISALLOW_COPY_AND_ASSIGN(SpdyReadQueue); 47 }; 48 49 } // namespace net 50 51 #endif // NET_SPDY_SPDY_BUFFER_QUEUE_H_ 52
