inet_address.h

#ifndef __YDX_INET_ADDRESS_H__
#define __YDX_INET_ADDRESS_H__

#include "string_piece.h"
#include <netinet/in.h>
#include <string>
namespace ydx
{
class InetAddress 
{
 public:
  /// Constructs an endpoint with given port number.
  /// Mostly used in TcpServer listening.
  explicit InetAddress(uint16_t port = 0, bool loopbackOnly = false);

  /// Constructs an endpoint with given ip and port.
  /// @c ip should be "1.2.3.4"
  InetAddress(StringArg ip, uint16_t port);

  /// Constructs an endpoint with given struct @c sockaddr_in
  /// Mostly used when accepting new connections
  InetAddress(const struct sockaddr_in& addr)
    : addr_(addr)
  { }

  std::string toIp() const;
  std::string toIpPort() const;
  uint16_t toPort() const;

  // default copy/assignment are Okay

  const struct sockaddr_in& getSockAddrInet() const { return addr_; }
  void setSockAddrInet(const struct sockaddr_in& addr) { addr_ = addr; }

  uint32_t ipNetEndian() const { return addr_.sin_addr.s_addr; }
  uint16_t portNetEndian() const { return addr_.sin_port; }

  // resolve hostname to IP address, not changing port or sin_family
  // return true on success.
  // thread safe
  static bool resolve(StringArg hostname, InetAddress* result);
  // static std::vector<InetAddress> resolveAll(const char* hostname, uint16_t port = 0);

 private:
  struct sockaddr_in addr_;
};
}

#endif