nghttp2/src/shrpx_thread_event_receiver.h

/*
 * 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_THREAD_EVENT_RECEIVER_H
#define SHRPX_THREAD_EVENT_RECEIVER_H

#include "shrpx.h"

#include <memory>

#include <openssl/ssl.h>

#include <event2/bufferevent.h>

#include "shrpx_config.h"
#include "shrpx_downstream_connection_pool.h"

namespace shrpx {

class Http2Session;
class ConnectBlocker;
struct WorkerStat;

enum WorkerEventType {
  NEW_CONNECTION = 0x01,
  REOPEN_LOG = 0x02,
  GRACEFUL_SHUTDOWN = 0x03,
};

struct WorkerEvent {
  WorkerEventType type;
  union {
    struct {
      sockaddr_union client_addr;
      size_t client_addrlen;
      evutil_socket_t client_fd;
    };
  };
};

class ThreadEventReceiver {
public:
  ThreadEventReceiver(event_base *evbase, SSL_CTX *ssl_ctx,
                      Http2Session *http2session,
                      ConnectBlocker *http1_connect_blocker);
  ~ThreadEventReceiver();
  void on_read(bufferevent *bev);

private:
  DownstreamConnectionPool dconn_pool_;
  event_base *evbase_;
  SSL_CTX *ssl_ctx_;
  // Shared HTTP2 session for each thread. NULL if not client
  // mode. Not deleted by this object.
  Http2Session *http2session_;
  ConnectBlocker *http1_connect_blocker_;
  bufferevent_rate_limit_group *rate_limit_group_;
  std::unique_ptr<WorkerStat> worker_stat_;
};

} // namespace shrpx

#endif // SHRPX_THREAD_EVENT_RECEIVER_H