nghttp2/src/shrpx_http_downstream_conne...

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/*
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* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2012 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SHRPX_HTTP_DOWNSTREAM_CONNECTION_H
#define SHRPX_HTTP_DOWNSTREAM_CONNECTION_H
#include "shrpx.h"
#include "http-parser/http_parser.h"
#include "shrpx_downstream_connection.h"
#include "shrpx_io_control.h"
#include "shrpx_connection.h"
namespace shrpx {
class DownstreamConnectionPool;
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class Worker;
struct DownstreamAddrGroup;
struct DownstreamAddr;
class HttpDownstreamConnection : public DownstreamConnection {
public:
HttpDownstreamConnection(DownstreamAddrGroup *group, struct ev_loop *loop,
Worker *worker);
virtual ~HttpDownstreamConnection();
virtual int attach_downstream(Downstream *downstream);
virtual void detach_downstream(Downstream *downstream);
virtual int push_request_headers();
virtual int push_upload_data_chunk(const uint8_t *data, size_t datalen);
virtual int end_upload_data();
virtual void pause_read(IOCtrlReason reason);
virtual int resume_read(IOCtrlReason reason, size_t consumed);
virtual void force_resume_read();
virtual int on_read();
virtual int on_write();
virtual void on_upstream_change(Upstream *upstream);
virtual bool poolable() const { return true; }
virtual DownstreamAddrGroup *get_downstream_addr_group() const;
int read_clear();
int write_clear();
int read_tls();
int write_tls();
int process_input(const uint8_t *data, size_t datalen);
int tls_handshake();
int connected();
void signal_write();
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int noop();
private:
Connection conn_;
std::function<int(HttpDownstreamConnection &)> do_read_, do_write_;
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Worker *worker_;
// nullptr if TLS is not used.
SSL_CTX *ssl_ctx_;
DownstreamAddrGroup *group_;
// Address of remote endpoint
DownstreamAddr *addr_;
IOControl ioctrl_;
http_parser response_htp_;
};
} // namespace shrpx
#endif // SHRPX_HTTP_DOWNSTREAM_CONNECTION_H