github.com/igggame/nebulas-go@v2.1.0+incompatible/nbre/3rd_party/fflib/src/net/middleware/net_nervure.cpp

/***********************************************
  The MIT License (MIT)

  Copyright (c) 2012 Athrun Arthur <athrunarthur@gmail.com>

  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
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  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
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  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
 *************************************************/
#include "ff/net/middleware/net_nervure.h"
#include "ff/net/common/defines.h"
#include "ff/net/middleware/event_handler.h"
#include "ff/net/network/asio_point.h"
#include "ff/net/network/end_point.h"
#include "ff/net/network/events.h"
#include "ff/net/network/tcp_client.h"
#include "ff/net/network/tcp_server.h"
#include "ff/net/network/udp_point.h"

namespace ff {
namespace net {
using namespace event;

net_nervure::net_nervure(net_mode nm)
    : m_oIOService(), mi_mode(nm), m_safe_to_stop(true) {
  m_pEH = new event_handler();
  m_pBS = new length_packer();
  m_pEH->listen<event::more::tcp_server_accept_connection>(std::bind(
      &net_nervure::on_tcp_server_accept_connect, this, std::placeholders::_1));
  m_pEH->listen<event::more::tcp_client_get_connection_succ>(std::bind(
      &net_nervure::on_tcp_client_get_connect, this, std::placeholders::_1));
  m_pEH->listen<event::more::tcp_recv_stream_error>(
      std::bind(&net_nervure::on_conn_recv_or_send_error, this,
                std::placeholders::_1, std::placeholders::_2));
  m_pEH->listen<event::more::tcp_send_stream_error>(
      std::bind(&net_nervure::on_conn_recv_or_send_error, this,
                std::placeholders::_1, std::placeholders::_2));
}

void net_nervure::add_pkg_handler(tcp_pkg_handler *p_tcp_handler,
                                  udp_pkg_handler *p_udp_handler) {
  if (p_tcp_handler)
    m_pTCPHandler.push_back(p_tcp_handler);
  if (p_udp_handler)
    m_pUDPHandler.push_back(p_udp_handler);
}

net_nervure::~net_nervure() {
  if (m_pEH != NULL) {
    delete m_pEH;
    m_pEH = NULL;
  }
  if (m_pBS) {
    delete m_pBS;
    m_pBS = NULL;
  }
}

tcp_connection_base_ptr net_nervure::add_tcp_client(const std::string &ip,
                                                    uint16_t iTCPPort) {
  tcp_endpoint ep(boost::asio::ip::address_v4::from_string(ip), iTCPPort);
  return add_tcp_client(ep);
}

tcp_connection_base_ptr net_nervure::add_tcp_client(const tcp_endpoint &ep) {
  tcp_connection_base *p = NULL;
  switch (mi_mode) {
  case real_net:
    p = new net_tcp_client(m_oIOService, m_pBS, m_pEH, m_pTCPHandler, ep);
    break;
  default:
    assert(0 && "not impl");
    break;
  }
  tcp_connection_base_ptr pclient(p);
  m_oClients.push_back(pclient);
  return pclient;
}

tcp_server_ptr net_nervure::add_tcp_server(const std::string &ip,
                                           uint16_t iTCPPort) {
  tcp_endpoint ep(boost::asio::ip::address_v4::from_string(ip), iTCPPort);
  return add_tcp_server(ep);
}

tcp_server_ptr net_nervure::add_tcp_server(const tcp_endpoint &ep) {
  tcp_server *p = NULL;
  switch (mi_mode) {
  case real_net:
    p = new net_tcp_server(m_oIOService, m_pBS, m_pEH, m_pTCPHandler, ep);
    p->start_accept();
    break;
  default:
    assert(0 && "not impl");
    break;
  }
  tcp_server_ptr pserver(p);
  m_oServers.push_back(pserver);
  return pserver;
}

udp_point_ptr net_nervure::add_udp_point(const std::string &ip,
                                         uint16_t iUDPPort) {
  udp_endpoint ep(boost::asio::ip::address_v4::from_string(ip), iUDPPort);
  return add_udp_point(ep);
}

udp_point_ptr net_nervure::add_udp_point(const udp_endpoint &ep) {
  udp_point *p = NULL;
  switch (mi_mode) {
  case real_net:
    p = new net_udp_point(m_oIOService, m_pBS, m_pEH, m_pUDPHandler, ep);
    break;
  // case simu_net:
  // p = new simu_udp_point(m_oIOService, m_pBS, m_pEH, m_pUDPHandler,
  // ep);  break;
  default:
    assert(0 && "not impl");
    break;
  }
  udp_point_ptr ppoint(p);
  m_oUDPPoints.push_back(ppoint);
  return ppoint;
}

void net_nervure::on_conn_recv_or_send_error(tcp_connection_base *pConn,
                                             boost::system::error_code ec) {
  // todo, should revise the connections.
  for (tcp_clients_t::iterator it = m_oClients.begin(); it != m_oClients.end();
       ++it) {
    tcp_connection_base_ptr p = *it;
    if (p.get() == pConn) {
      pConn->close();
      m_oClients.erase(it);
      m_pEH->triger<tcp_lost_connection>(pConn);
      break;
    }
  }
  for (tcp_connections_t::iterator it = m_oTCPConnections.begin();
       it != m_oTCPConnections.end(); ++it) {
    tcp_connection_base_ptr p = *it;
    if (p.get() == pConn) {
      pConn->close();
      m_oTCPConnections.erase(it);
      m_pEH->triger<tcp_lost_connection>(pConn);
      break;
    }
  }
}

void net_nervure::on_tcp_client_get_connect(tcp_connection_base *pClient) {
  m_pEH->triger<tcp_get_connection>(pClient);
}

void net_nervure::on_tcp_server_accept_connect(tcp_connection_base_ptr pConn) {
  m_oTCPConnections.push_back(pConn);
  m_pEH->triger<tcp_get_connection>(pConn.get());
}

void net_nervure::stop() {
  std::thread::id cid = std::this_thread::get_id();
  if (m_safe_to_stop)
    return;

  if (cid == m_io_service_thrd) {
    internal_stop();
  } else {
    std::unique_lock<std::mutex> _lock(m_stop_mutex);
    m_oIOService.post(std::bind(&net_nervure::internal_stop, this));
    while (!m_safe_to_stop) {
      m_stop_cond.wait(_lock);
    }
  }
}

void net_nervure::internal_stop() {
  m_oIOService.stop();
  for (tcp_servers_t::iterator it = m_oServers.begin(); it != m_oServers.end();
       ++it) {
    tcp_server_ptr p = *it;
    p->close();
  }
  m_oServers.clear();
  for (tcp_connections_t::iterator it = m_oTCPConnections.begin();
       it != m_oTCPConnections.end(); ++it) {
    tcp_connection_base_ptr p = *it;
    p->close();
  }
  m_oTCPConnections.clear();
  for (tcp_clients_t::iterator it = m_oClients.begin(); it != m_oClients.end();
       ++it) {
    tcp_connection_base_ptr p = *it;
    p->close();
  }
  m_oClients.clear();
  std::unique_lock<std::mutex> _lock(m_stop_mutex);
  m_safe_to_stop = true;
  m_stop_cond.notify_one();
}

void net_nervure::run() {
  m_safe_to_stop = false;
  m_io_service_thrd = std::this_thread::get_id();
  m_oIOService.run();
}

} // namespace net

} // namespace ff