Struct x11rb::extension_manager::ExtensionManager

pub struct ExtensionManager(/* private fields */);

Helper for implementing RequestConnection::extension_information().

This helps with implementing RequestConnection. Most likely, you do not need this in your own code, unless you really want to implement your own X11 connection.

Implementations

impl ExtensionManager

pub fn prefetch_extension_information<C: RequestConnection>( &mut self, conn: &C, extension_name: &'static str ) -> Result<(), ConnectionError>

Prefetchs an extension sending a QueryExtension without waiting for the reply.

pub fn insert_extension_information( &mut self, extension_name: &'static str, info: Option<ExtensionInformation> )

Insert an extension if you already have the information.

pub fn extension_information<C: RequestConnection>( &mut self, conn: &C, extension_name: &'static str ) -> Result<Option<ExtensionInformation>, ConnectionError>

An implementation of RequestConnection::extension_information().

The given connection is used for sending a QueryExtension request if needed.

Trait Implementations

impl Debug for ExtensionManager

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ExtensionManager

fn default() -> ExtensionManager

Returns the “default value” for a type.

impl ExtInfoProvider for ExtensionManager

fn get_from_major_opcode( &self, major_opcode: u8 ) -> Option<(&str, ExtensionInformation)>

Returns the information of the extension that whose opcode is major_opcode.

fn get_from_event_code( &self, event_code: u8 ) -> Option<(&str, ExtensionInformation)>

Returns the information of the extension that whose event number range includes event_number.

fn get_from_error_code( &self, error_code: u8 ) -> Option<(&str, ExtensionInformation)>

Returns the information of the extension that whose error number range includes error_number.