117 lines
2.7 KiB
C++
117 lines
2.7 KiB
C++
#include <network/socket_handler.hpp>
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#include <utils/scopeguard.hpp>
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#include <network/poller.hpp>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <cstring>
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#include <netdb.h>
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#include <unistd.h>
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#include <iostream>
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SocketHandler::SocketHandler():
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poller(nullptr)
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{
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if ((this->socket = ::socket(AF_INET, SOCK_STREAM, 0)) == -1)
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throw std::runtime_error("Could not create socket");
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}
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void SocketHandler::connect(const std::string& address, const std::string& port)
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{
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std::cout << "Trying to connect to " << address << ":" << port << std::endl;
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struct addrinfo hints;
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memset(&hints, 0, sizeof(struct addrinfo));
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hints.ai_flags = 0;
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hints.ai_family = AF_INET;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_protocol = 0;
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struct addrinfo* addr_res;
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const int res = ::getaddrinfo(address.c_str(), port.c_str(), &hints, &addr_res);
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// Make sure the alloced structure is always freed at the end of the
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// function
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utils::ScopeGuard sg([&addr_res](){ freeaddrinfo(addr_res); });
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if (res != 0)
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{
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perror("getaddrinfo");
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throw std::runtime_error("getaddrinfo failed");
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}
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for (struct addrinfo* rp = addr_res; rp; rp = rp->ai_next)
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{
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std::cout << "One result" << std::endl;
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if (::connect(this->socket, rp->ai_addr, rp->ai_addrlen) == 0)
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{
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std::cout << "Connection success." << std::endl;
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this->on_connected();
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return ;
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}
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std::cout << "Connection failed:" << std::endl;
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perror("connect");
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}
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std::cout << "All connection attempts failed." << std::endl;
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this->close();
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}
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void SocketHandler::set_poller(Poller* poller)
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{
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this->poller = poller;
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}
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void SocketHandler::on_recv()
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{
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char buf[4096];
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ssize_t size = ::recv(this->socket, buf, 4096, 0);
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if (0 == size)
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{
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this->on_connection_close();
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this->close();
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}
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else if (-1 == static_cast<ssize_t>(size))
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throw std::runtime_error("Error reading from socket");
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else
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{
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this->in_buf += std::string(buf, size);
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this->parse_in_buffer();
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}
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}
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void SocketHandler::on_send()
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{
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const ssize_t res = ::send(this->socket, this->out_buf.data(), this->out_buf.size(), 0);
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if (res == -1)
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{
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perror("send");
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this->close();
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}
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else
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{
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this->out_buf = this->out_buf.substr(res, std::string::npos);
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if (this->out_buf.empty())
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this->poller->stop_watching_send_events(this);
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}
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}
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void SocketHandler::close()
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{
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this->poller->remove_socket_handler(this->get_socket());
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::close(this->socket);
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}
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socket_t SocketHandler::get_socket() const
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{
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return this->socket;
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}
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void SocketHandler::send_data(std::string&& data)
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{
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this->out_buf += std::move(data);
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if (!this->out_buf.empty())
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{
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this->poller->watch_send_events(this);
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}
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}
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