uvw::get_name_info_req Class Reference

The getnameinfo request. More...

#include <dns.h>

Inheritance diagram for uvw::get_name_info_req:

Collaboration diagram for uvw::get_name_info_req:

Public Member Functions
int	name_info (const sockaddr &addr, int flags=0)
	Async getnameinfo.
int	name_info (const std::string &ip, unsigned int port, int flags=0)
	Async getnameinfo.
int	name_info (socket_address addr, int flags=0)
	Async getnameinfo.
std::pair< bool, std::pair< const char *, const char * > >	name_info_sync (const sockaddr &addr, int flags=0)
	Sync getnameinfo.
std::pair< bool, std::pair< const char *, const char * > >	name_info_sync (const std::string &ip, unsigned int port, int flags=0)
	Sync getnameinfo.
std::pair< bool, std::pair< const char *, const char * > >	name_info_sync (socket_address addr, int flags=0)
	Sync getnameinfo.
Public Member Functions inherited from uvw::request< get_name_info_req, uv_getnameinfo_t, name_info_event >
int	cancel ()
	Cancels a pending request.
std::size_t	size () const noexcept
	Returns the size of the underlying request type.
Public Member Functions inherited from uvw::resource< T, U, E >
template<typename R = void>
std::shared_ptr< R >	data () const
	Gets user-defined data. uvw won't use this field in any case.
void	data (std::shared_ptr< void > udata)
	Sets arbitrary data. uvw won't use this field in any case.
Public Member Functions inherited from uvw::uv_type< U >
virtual int	init ()
	Initializes the handle.
loop &	parent () const noexcept
	Gets the loop from which the resource was originated.
const U *	raw () const noexcept
	Gets the underlying raw data structure.
U *	raw () noexcept
	Gets the underlying raw data structure.
Public Member Functions inherited from uvw::emitter< T, E... >
void	on (listener_t< U > f)
	Registers a long-lived listener with the event emitter.
void	reset () noexcept
	Disconnects the listener for the given event type.
void	reset () noexcept
	Disconnects all listeners.
bool	has () const noexcept
	Checks if there is a listener registered for the specific event.

Detailed Description

The getnameinfo request.

Wrapper for getnameinfo.
It offers either asynchronous and synchronous access methods.

To create a get_name_info_req through a loop, no arguments are required.

Definition at line 145 of file dns.h.

Member Function Documentation

name_info() [1/3]

int uvw::get_name_info_req::name_info	(	const sockaddr &	addr,
		int	flags = 0
	)

Async getnameinfo.

Parameters

addr	Initialized sockaddr_in or sockaddr_in6 data structure.
flags	Optional flags that modify the behavior of getnameinfo.

Returns

Underlying return value.

name_info() [2/3]

int uvw::get_name_info_req::name_info	(	const std::string &	ip,
		unsigned int	port,
		int	flags = 0
	)

Async getnameinfo.

Parameters

ip	A valid IP address.
port	A valid port number.
flags	Optional flags that modify the behavior of getnameinfo.

Returns

Underlying return value.

name_info() [3/3]

int uvw::get_name_info_req::name_info	(	socket_address	addr,
		int	flags = 0
	)

Async getnameinfo.

Parameters

addr	A valid instance of socket_address.
flags	Optional flags that modify the behavior of getnameinfo.

Returns

Underlying return value.

name_info_sync() [1/3]

std::pair< bool, std::pair< const char *, const char * > > uvw::get_name_info_req::name_info_sync	(	const sockaddr &	addr,
		int	flags = 0
	)

Sync getnameinfo.

Parameters

addr	Initialized sockaddr_in or sockaddr_in6 data structure.
flags	Optional flags that modify the behavior of getnameinfo.

Returns

A std::pair composed as it follows:

• A boolean value that is true in case of success, false otherwise.
• A std::pair composed as it follows:
  • A const char * containing a valid hostname.
  • A const char * containing a valid service name.

name_info_sync() [2/3]

std::pair< bool, std::pair< const char *, const char * > > uvw::get_name_info_req::name_info_sync	(	const std::string &	ip,
		unsigned int	port,
		int	flags = 0
	)

Sync getnameinfo.

Parameters

ip	A valid IP address.
port	A valid port number.
flags	Optional flags that modify the behavior of getnameinfo.

Returns

A std::pair composed as it follows:

• A boolean value that is true in case of success, false otherwise.
• A std::pair composed as it follows:
  • A const char * containing a valid hostname.
  • A const char * containing a valid service name.

name_info_sync() [3/3]

std::pair< bool, std::pair< const char *, const char * > > uvw::get_name_info_req::name_info_sync	(	socket_address	addr,
		int	flags = 0
	)

Sync getnameinfo.

Parameters

addr	A valid instance of socket_address.
flags	Optional flags that modify the behavior of getnameinfo.

Returns

A std::pair composed as it follows:

• A boolean value that is true in case of success, false otherwise.
• A std::pair composed as it follows:
  • A const char * containing a valid hostname.
  • A const char * containing a valid service name.

---

The documentation for this class was generated from the following file:

• src/uvw/dns.h