1 /* 2 * nghttp2 - HTTP/2 C Library 3 * 4 * Copyright (c) 2021 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_NULL_DOWNSTREAM_CONNECTION_H 26 #define SHRPX_NULL_DOWNSTREAM_CONNECTION_H 27 28 #include "shrpx_downstream_connection.h" 29 #include "template.h" 30 31 using namespace nghttp2; 32 33 namespace shrpx { 34 35 class NullDownstreamConnection : public DownstreamConnection { 36 public: 37 NullDownstreamConnection(const std::shared_ptr<DownstreamAddrGroup> &group); 38 virtual ~NullDownstreamConnection(); 39 virtual int attach_downstream(Downstream *downstream); 40 virtual void detach_downstream(Downstream *downstream); 41 42 virtual int push_request_headers(); 43 virtual int push_upload_data_chunk(const uint8_t *data, size_t datalen); 44 virtual int end_upload_data(); 45 46 virtual void pause_read(IOCtrlReason reason); 47 virtual int resume_read(IOCtrlReason reason, size_t consumed); 48 virtual void force_resume_read(); 49 50 virtual int on_read(); 51 virtual int on_write(); 52 53 virtual void on_upstream_change(Upstream *upstream); 54 55 // true if this object is poolable. 56 virtual bool poolable() const; 57 58 virtual const std::shared_ptr<DownstreamAddrGroup> & 59 get_downstream_addr_group() const; 60 virtual DownstreamAddr *get_addr() const; 61 62 private: 63 std::shared_ptr<DownstreamAddrGroup> group_; 64 }; 65 66 } // namespace shrpx 67 68 #endif // SHRPX_NULL_DOWNSTREAM_CONNECTION_H 69