1 files changed, 113 insertions, 0 deletions
diff --git a/src/network/socket_handler.cpp b/src/network/socket_handler.cpp
new file mode 100644
index 0000000..e738302
--- /dev/null
+++ b/src/network/socket_handler.cpp
@@ -0,0 +1,113 @@
+#include <network/socket_handler.hpp>
+
+#include <utils/scopeguard.hpp>
+#include <network/poller.hpp>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <cstring>
+#include <netdb.h>
+#include <unistd.h>
+
+#include <iostream>
+
+SocketHandler::SocketHandler():
+  poller(nullptr)
+{
+  if ((this->socket = ::socket(AF_INET, SOCK_STREAM, 0)) == -1)
+    throw std::runtime_error("Could not create socket");
+}
+
+void SocketHandler::connect(const std::string& address, const std::string& port)
+{
+  std::cout << "Trying to connect to " << address << ":" << port << std::endl;
+  struct addrinfo hints;
+  memset(&hints, 0, sizeof(struct addrinfo));
+  hints.ai_flags = 0;
+  hints.ai_family = AF_INET;
+  hints.ai_socktype = SOCK_STREAM;
+  hints.ai_protocol = 0;
+
+  struct addrinfo* addr_res;
+  const int res = ::getaddrinfo(address.c_str(), port.c_str(), &hints, &addr_res);
+  // Make sure the alloced structure is always freed at the end of the
+  // function
+  utils::ScopeGuard sg([&addr_res](){ freeaddrinfo(addr_res); });
+
+  if (res != 0)
+    {
+      perror("getaddrinfo");
+      throw std::runtime_error("getaddrinfo failed");
+    }
+  for (struct addrinfo* rp = addr_res; rp; rp = rp->ai_next)
+    {
+      std::cout << "One result" << std::endl;
+      if (::connect(this->socket, rp->ai_addr, rp->ai_addrlen) == 0)
+        {
+          std::cout << "Connection success." << std::endl;
+          this->on_connected();
+          return ;
+        }
+      std::cout << "Connection failed:" << std::endl;
+      perror("connect");
+    }
+  std::cout << "All connection attempts failed." << std::endl;
+  this->close();
+}
+
+void SocketHandler::set_poller(Poller* poller)
+{
+  this->poller = poller;
+}
+
+void SocketHandler::on_recv()
+{
+  char buf[4096];
+
+  ssize_t size = ::recv(this->socket, buf, 4096, 0);
+  if (0 == size)
+    this->on_connection_close();
+  else if (-1 == static_cast<ssize_t>(size))
+    throw std::runtime_error("Error reading from socket");
+  else
+    {
+      this->in_buf += std::string(buf, size);
+      this->parse_in_buffer();
+    }
+}
+
+void SocketHandler::on_send()
+{
+  const ssize_t res = ::send(this->socket, this->out_buf.data(), this->out_buf.size(), 0);
+  if (res == -1)
+    {
+      perror("send");
+      this->close();
+    }
+  else
+    {
+      this->out_buf = this->out_buf.substr(res, std::string::npos);
+      if (this->out_buf.empty())
+        this->poller->stop_watching_send_events(this);
+    }
+}
+
+void SocketHandler::close()
+{
+  this->poller->remove_socket_handler(this->get_socket());
+  ::close(this->socket);
+}
+
+socket_t SocketHandler::get_socket() const
+{
+  return this->socket;
+}
+
+void SocketHandler::send_data(std::string&& data)
+{
+  this->out_buf += std::move(data);
+  if (!this->out_buf.empty())
+    {
+      this->poller->watch_send_events(this);
+    }
+}