Gio::ProxyResolver Class Reference
Portable Network I/O Functionality

ProxyResolver - Asynchronous and cancellable network proxy resolver. More...

`#include <giomm/proxyresolver.h>`

Inheritance diagram for Gio::ProxyResolver:
[legend]

## Public Member Functions

| ProxyResolver (ProxyResolver&& src) noexcept
ProxyResolver& | operator= (ProxyResolver&& src) noexcept
| ~ProxyResolver () noexcept override
GProxyResolver* | gobj ()
| Provides access to the underlying C GObject. More...
const GProxyResolver* | gobj () const
| Provides access to the underlying C GObject. More...
bool | is_supported () const
| Checks if resolver can be used on this system. More...
std::vector< Glib::ustring > | lookup (const Glib::ustring& uri, const Glib::RefPtr< Cancellable >& cancellable)
| Looks into the system proxy configuration to determine what proxy, if any, to use to connect to uri. More...
std::vector< Glib::ustring > | lookup (const Glib::ustring& uri)
| Looks into the system proxy configuration to determine what proxy, if any, to use to connect to uri. More...
void | lookup_async (const Glib::ustring& uri, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable)
| Asynchronous lookup of proxy. More...
void | lookup_async (const Glib::ustring& uri, const SlotAsyncReady& slot)
| Asynchronous lookup of proxy. More...
std::vector< Glib::ustring > | lookup_finish (const Glib::RefPtr< AsyncResult >& result)
| Call this function to obtain the array of proxy URIs when g_proxy_resolver_lookup_async() is complete. More...
Public Member Functions inherited from Glib::Interface
| Interface ()
| A Default constructor. More...
| Interface (Interface&& src) noexcept
Interface& | operator= (Interface&& src) noexcept
| Interface (const Glib::Interface_Class& interface_class)
| Called by constructors of derived classes. More...
| Interface (GObject* castitem)
| Called by constructors of derived classes. More...
| ~Interface () noexcept override
| Interface (const Interface&)=delete
Interface& | operator= (const Interface&)=delete
GObject* | gobj ()
const GObject* | gobj () const
Public Member Functions inherited from Glib::ObjectBase
| ObjectBase (const ObjectBase&)=delete
ObjectBase& | operator= (const ObjectBase&)=delete
void | set_property_value (const Glib::ustring& property_name, const Glib::ValueBase& value)
| You probably want to use a specific property_*() accessor method instead. More...
void | get_property_value (const Glib::ustring& property_name, Glib::ValueBase& value) const
| You probably want to use a specific property_*() accessor method instead. More...
template<class PropertyType >
void | set_property (const Glib::ustring& property_name, const PropertyType& value)
| You probably want to use a specific property_*() accessor method instead. More...
template<class PropertyType >
void | get_property (const Glib::ustring& property_name, PropertyType& value) const
| You probably want to use a specific property_*() accessor method instead. More...
void | connect_property_changed (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
void | connect_property_changed (const Glib::ustring& property_name, sigc::slot< void >&& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, sigc::slot< void >&& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
void | freeze_notify ()
| Increases the freeze count on object. More...
void | thaw_notify ()
| Reverts the effect of a previous call to freeze_notify(). More...
virtual void | reference () const
| Increment the reference count for this object. More...
virtual void | unreference () const
| Decrement the reference count for this object. More...
GObject* | gobj ()
| Provides access to the underlying C GObject. More...
const GObject* | gobj () const
| Provides access to the underlying C GObject. More...
GObject* | gobj_copy () const
| Give a ref-ed copy to someone. Use for direct struct access. More...
Public Member Functions inherited from sigc::trackable
| trackable () noexcept
| trackable (const trackable &src) noexcept
| trackable (trackable &&src)
| ~trackable ()
void | add_destroy_notify_callback (void *data, func_destroy_notify func) const
void | notify_callbacks ()
trackable & | operator= (const trackable &src)
trackable & | operator= (trackable &&src)
void | remove_destroy_notify_callback (void *data) const

## Static Public Member Functions

static void | add_interface (GType gtype_implementer)
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...
static Glib::RefPtr< ProxyResolver > | get_default ()
| Gets the default ProxyResolver for the system. More...

## Protected Member Functions

| ProxyResolver ()
| You should derive from this class to use it. More...
Protected Member Functions inherited from Glib::ObjectBase
| ObjectBase ()
| This default constructor is called implicitly from the constructor of user-derived classes, even if, for instance, Gtk::Button calls a different ObjectBase constructor. More...
| ObjectBase (const char* custom_type_name)
| A derived constructor always overrides this choice. More...
| ObjectBase (const std::type_info& custom_type_info)
| This constructor is a special feature to allow creation of derived types on the fly, without having to use g_object_new() manually. More...
| ObjectBase (ObjectBase&& src) noexcept
ObjectBase& | operator= (ObjectBase&& src) noexcept
virtual | ~ObjectBase () noexcept=0
void | initialize (GObject* castitem)
void | initialize_move (GObject* castitem, Glib::ObjectBase* previous_wrapper)

## Related Functions

(Note that these are not member functions.)
Glib::RefPtr< Gio::ProxyResolver > | wrap (GProxyResolver* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...

## Additional Inherited Members

Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify | func_destroy_notify

## Detailed Description

ProxyResolver - Asynchronous and cancellable network proxy resolver.

ProxyResolver provides synchronous and asynchronous network proxy resolution. ProxyResolver is used within ClientSocket through the method Gio::SocketConnectable::proxy_enumerate().

Since glibmm 2.28:

## Constructor & Destructor Documentation

## ProxyResolver() [1/2]

Gio::ProxyResolver::ProxyResolver | ( |  | ) |

protected

You should derive from this class to use it.

## ProxyResolver() [2/2]

Gio::ProxyResolver::ProxyResolver | ( | ProxyResolver&& | src | ) |

noexcept

## ~ProxyResolver()

Gio::ProxyResolver::~ProxyResolver | ( |  | ) |

override noexcept

## Member Function Documentation

## add_interface()

static void Gio::ProxyResolver::add_interface | ( | GType | gtype_implementer | ) |

static

## get_default()

static Glib::RefPtr<ProxyResolver> Gio::ProxyResolver::get_default | ( |  | ) |

static

Gets the default ProxyResolver for the system.

Since glibmm 2.26:

Returns
  The default ProxyResolver.

## get_type()

static GType Gio::ProxyResolver::get_type | ( |  | ) |

static

Get the GType for this class, for use with the underlying GObject type system.

## gobj() [1/2]

GProxyResolver* Gio::ProxyResolver::gobj | ( |  | ) |

inline

Provides access to the underlying C GObject.

## gobj() [2/2]

const GProxyResolver* Gio::ProxyResolver::gobj | ( |  | ) | const

inline

Provides access to the underlying C GObject.

## is_supported()

bool Gio::ProxyResolver::is_supported | ( |  | ) | const

Checks if resolver can be used on this system.

(This is used internally; g_proxy_resolver_get_default() will only return a proxy resolver that returns `true` for this method.)

Since glibmm 2.26:

Returns
  `true` if resolver is supported.

## lookup() [1/2]

std::vector<Glib::ustring> Gio::ProxyResolver::lookup | ( | const Glib::ustring& | uri,
|  | const Glib::RefPtr< Cancellable >& | cancellable
| ) |  |

Looks into the system proxy configuration to determine what proxy, if any, to use to connect to uri.

The returned proxy URIs are of the form `<protocol>://[user[:password]@]host:port` or `direct://`, where <protocol> could be http, rtsp, socks or other proxying protocol.

If you don't know what network protocol is being used on the socket, you should use `none` as the URI protocol. In this case, the resolver might still return a generic proxy type (such as SOCKS), but would not return protocol-specific proxy types (such as http).

`direct://` is used when no proxy is needed. Direct connection should not be attempted unless it is part of the returned array of proxies.

Since glibmm 2.26:

Parameters

  uri | A URI representing the destination to connect to.
  cancellable | A Cancellable, or `nullptr`.

Returns
  A `nullptr`-terminated array of proxy URIs.

## lookup() [2/2]

std::vector<Glib::ustring> Gio::ProxyResolver::lookup | ( | const Glib::ustring& | uri | ) |

Looks into the system proxy configuration to determine what proxy, if any, to use to connect to uri.

The returned proxy URIs are of the form <protocol>://[user[:password]@]host:port or direct://, where <protocol> could be http, rtsp, socks or other proxying protocol.

If you don't know what network protocol is being used on the socket, you should use none as the URI protocol. In this case, the resolver might still return a generic proxy type (such as SOCKS), but would not return protocol-specific proxy types (such as http).

direct:// is used when no proxy is needed. Direct connection should not be attempted unless it is part of the returned array of proxies.

Parameters

  uri | a URI representing the destination to connect to.

## lookup_async() [1/2]

void Gio::ProxyResolver::lookup_async | ( | const Glib::ustring& | uri,
|  | const SlotAsyncReady& | slot,
|  | const Glib::RefPtr< Cancellable >& | cancellable
| ) |  |

Asynchronous lookup of proxy.

See lookup() for more details.

Parameters

  uri | a URI representing the destination to connect to.
  slot | A callback slot to call after the resolution completes.
  cancellable | A Cancellable object which can be used to cancel the operation.

## lookup_async() [2/2]

void Gio::ProxyResolver::lookup_async | ( | const Glib::ustring& | uri,
|  | const SlotAsyncReady& | slot
| ) |  |

Asynchronous lookup of proxy.

See lookup() for more details.

Parameters

  uri | a URI representing the destination to connect to.
  slot | A callback slot to call after the resolution completes.

## lookup_finish()

std::vector<Glib::ustring> Gio::ProxyResolver::lookup_finish | ( | const Glib::RefPtr< AsyncResult >& | result | ) |

Call this function to obtain the array of proxy URIs when g_proxy_resolver_lookup_async() is complete.

See g_proxy_resolver_lookup() for more details.

Since glibmm 2.26:

Parameters

  result | The result passed to your SlotAsyncReady.

Returns
  A `nullptr`-terminated array of proxy URIs.

## operator=()

ProxyResolver& Gio::ProxyResolver::operator= | ( | ProxyResolver&& | src | ) |

noexcept

## Friends And Related Function Documentation

## wrap()

Glib::RefPtr< Gio::ProxyResolver > wrap | ( | GProxyResolver * | object,
|  | bool | take_copy = `false`
| ) |  |

related

A Glib::wrap() method for this object.

Parameters

  object | The C instance.
  take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns
  A C++ instance that wraps this C instance.