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< get_name_info_req, uv_getnameinfo_t, E... >
std::shared_ptr< R >	data () const
	Gets user-defined data. uvw won't use this field in any case.
Public Member Functions inherited from uvw::uv_type< uv_getnameinfo_t >
loop &	parent () const noexcept
	Gets the loop from which the resource was originated.
const uv_getnameinfo_t *	raw () const noexcept
	Gets the underlying raw data structure.
Public Member Functions inherited from uvw::emitter< get_name_info_req, E... >
void	on (listener_t< Type > f)
	Registers a long-lived listener with the event emitter.
void	reset () noexcept
	Disconnects the listener for the given event type.
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.

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

• src/uvw/dns.h