12c593315Sopenharmony_ci/*
22c593315Sopenharmony_ci * nghttp2 - HTTP/2 C Library
32c593315Sopenharmony_ci *
42c593315Sopenharmony_ci * Copyright (c) 2012 Tatsuhiro Tsujikawa
52c593315Sopenharmony_ci *
62c593315Sopenharmony_ci * Permission is hereby granted, free of charge, to any person obtaining
72c593315Sopenharmony_ci * a copy of this software and associated documentation files (the
82c593315Sopenharmony_ci * "Software"), to deal in the Software without restriction, including
92c593315Sopenharmony_ci * without limitation the rights to use, copy, modify, merge, publish,
102c593315Sopenharmony_ci * distribute, sublicense, and/or sell copies of the Software, and to
112c593315Sopenharmony_ci * permit persons to whom the Software is furnished to do so, subject to
122c593315Sopenharmony_ci * the following conditions:
132c593315Sopenharmony_ci *
142c593315Sopenharmony_ci * The above copyright notice and this permission notice shall be
152c593315Sopenharmony_ci * included in all copies or substantial portions of the Software.
162c593315Sopenharmony_ci *
172c593315Sopenharmony_ci * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
182c593315Sopenharmony_ci * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
192c593315Sopenharmony_ci * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
202c593315Sopenharmony_ci * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
212c593315Sopenharmony_ci * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
222c593315Sopenharmony_ci * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
232c593315Sopenharmony_ci * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
242c593315Sopenharmony_ci */
252c593315Sopenharmony_ci#ifndef SHRPX_HTTP2_DOWNSTREAM_CONNECTION_H
262c593315Sopenharmony_ci#define SHRPX_HTTP2_DOWNSTREAM_CONNECTION_H
272c593315Sopenharmony_ci
282c593315Sopenharmony_ci#include "shrpx.h"
292c593315Sopenharmony_ci
302c593315Sopenharmony_ci#include <openssl/ssl.h>
312c593315Sopenharmony_ci
322c593315Sopenharmony_ci#include <nghttp2/nghttp2.h>
332c593315Sopenharmony_ci
342c593315Sopenharmony_ci#include "shrpx_downstream_connection.h"
352c593315Sopenharmony_ci
362c593315Sopenharmony_cinamespace shrpx {
372c593315Sopenharmony_ci
382c593315Sopenharmony_cistruct StreamData;
392c593315Sopenharmony_ciclass Http2Session;
402c593315Sopenharmony_ciclass DownstreamConnectionPool;
412c593315Sopenharmony_ci
422c593315Sopenharmony_ciclass Http2DownstreamConnection : public DownstreamConnection {
432c593315Sopenharmony_cipublic:
442c593315Sopenharmony_ci  Http2DownstreamConnection(Http2Session *http2session);
452c593315Sopenharmony_ci  virtual ~Http2DownstreamConnection();
462c593315Sopenharmony_ci  virtual int attach_downstream(Downstream *downstream);
472c593315Sopenharmony_ci  virtual void detach_downstream(Downstream *downstream);
482c593315Sopenharmony_ci
492c593315Sopenharmony_ci  virtual int push_request_headers();
502c593315Sopenharmony_ci  virtual int push_upload_data_chunk(const uint8_t *data, size_t datalen);
512c593315Sopenharmony_ci  virtual int end_upload_data();
522c593315Sopenharmony_ci
532c593315Sopenharmony_ci  virtual void pause_read(IOCtrlReason reason) {}
542c593315Sopenharmony_ci  virtual int resume_read(IOCtrlReason reason, size_t consumed);
552c593315Sopenharmony_ci  virtual void force_resume_read() {}
562c593315Sopenharmony_ci
572c593315Sopenharmony_ci  virtual int on_read();
582c593315Sopenharmony_ci  virtual int on_write();
592c593315Sopenharmony_ci  virtual int on_timeout();
602c593315Sopenharmony_ci
612c593315Sopenharmony_ci  virtual void on_upstream_change(Upstream *upstream) {}
622c593315Sopenharmony_ci
632c593315Sopenharmony_ci  // This object is not poolable because we don't have facility to
642c593315Sopenharmony_ci  // migrate to another Http2Session object.
652c593315Sopenharmony_ci  virtual bool poolable() const { return false; }
662c593315Sopenharmony_ci
672c593315Sopenharmony_ci  virtual const std::shared_ptr<DownstreamAddrGroup> &
682c593315Sopenharmony_ci  get_downstream_addr_group() const;
692c593315Sopenharmony_ci  virtual DownstreamAddr *get_addr() const;
702c593315Sopenharmony_ci
712c593315Sopenharmony_ci  int send();
722c593315Sopenharmony_ci
732c593315Sopenharmony_ci  void attach_stream_data(StreamData *sd);
742c593315Sopenharmony_ci  StreamData *detach_stream_data();
752c593315Sopenharmony_ci
762c593315Sopenharmony_ci  int submit_rst_stream(Downstream *downstream,
772c593315Sopenharmony_ci                        uint32_t error_code = NGHTTP2_INTERNAL_ERROR);
782c593315Sopenharmony_ci
792c593315Sopenharmony_ci  Http2DownstreamConnection *dlnext, *dlprev;
802c593315Sopenharmony_ci
812c593315Sopenharmony_ciprivate:
822c593315Sopenharmony_ci  Http2Session *http2session_;
832c593315Sopenharmony_ci  StreamData *sd_;
842c593315Sopenharmony_ci};
852c593315Sopenharmony_ci
862c593315Sopenharmony_ci} // namespace shrpx
872c593315Sopenharmony_ci
882c593315Sopenharmony_ci#endif // SHRPX_HTTP2_DOWNSTREAM_CONNECTION_H
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