1 /* 2 * nghttp2 - HTTP/2 C Library 3 * 4 * Copyright (c) 2012 Tatsuhiro Tsujikawa 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining 7 * a copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sublicense, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be 15 * included in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 #ifndef SHRPX_HTTP2_DOWNSTREAM_CONNECTION_H 26 #define SHRPX_HTTP2_DOWNSTREAM_CONNECTION_H 27 28 #include "shrpx.h" 29 30 #include <openssl/ssl.h> 31 32 #include <nghttp2/nghttp2.h> 33 34 #include "shrpx_downstream_connection.h" 35 36 namespace shrpx { 37 38 struct StreamData; 39 class Http2Session; 40 class DownstreamConnectionPool; 41 42 class Http2DownstreamConnection : public DownstreamConnection { 43 public: 44 Http2DownstreamConnection(Http2Session *http2session); 45 virtual ~Http2DownstreamConnection(); 46 virtual int attach_downstream(Downstream *downstream); 47 virtual void detach_downstream(Downstream *downstream); 48 49 virtual int push_request_headers(); 50 virtual int push_upload_data_chunk(const uint8_t *data, size_t datalen); 51 virtual int end_upload_data(); 52 pause_read(IOCtrlReason reason)53 virtual void pause_read(IOCtrlReason reason) {} 54 virtual int resume_read(IOCtrlReason reason, size_t consumed); force_resume_read()55 virtual void force_resume_read() {} 56 57 virtual int on_read(); 58 virtual int on_write(); 59 virtual int on_timeout(); 60 on_upstream_change(Upstream * upstream)61 virtual void on_upstream_change(Upstream *upstream) {} 62 63 // This object is not poolable because we don't have facility to 64 // migrate to another Http2Session object. poolable()65 virtual bool poolable() const { return false; } 66 67 virtual const std::shared_ptr<DownstreamAddrGroup> & 68 get_downstream_addr_group() const; 69 virtual DownstreamAddr *get_addr() const; 70 71 int send(); 72 73 void attach_stream_data(StreamData *sd); 74 StreamData *detach_stream_data(); 75 76 int submit_rst_stream(Downstream *downstream, 77 uint32_t error_code = NGHTTP2_INTERNAL_ERROR); 78 79 Http2DownstreamConnection *dlnext, *dlprev; 80 81 private: 82 Http2Session *http2session_; 83 StreamData *sd_; 84 }; 85 86 } // namespace shrpx 87 88 #endif // SHRPX_HTTP2_DOWNSTREAM_CONNECTION_H 89