Struct DeviceRestore

pub struct DeviceRestore { /* private fields */ }

A wrapper object providing device restore routines to a context.

Note: Saves a copy of active multi-use closure callbacks, which it frees on drop.

Implementations

impl DeviceRestore

pub fn test<F>(&mut self, callback: F) -> Operation<dyn FnMut(u32)>

where F: FnMut(u32) + 'static,

Tests if this extension module is available in the server.

The callback must accept an integer, which indicates version.

Panics if the underlying C function returns a null pointer.

pub fn subscribe<F>( &mut self, enable: bool, callback: F, ) -> Operation<dyn FnMut(bool)>

where F: FnMut(bool) + 'static,

Subscribes to changes in the device database.

The callback must accept a bool, which indicates success.

Panics if the underlying C function returns a null pointer.

pub fn set_subscribe_cb<F>(&mut self, callback: F)

where F: FnMut(Device, u32) + 'static,

Sets the subscription callback that is called when subscribe() was called.

The callback must accept two parameters, firstly a Device variant, and secondly an integer index.

pub fn read_formats_all<F>( &mut self, callback: F, ) -> Operation<dyn FnMut(ListResult<&Info>)>

where F: FnMut(ListResult<&Info>) + 'static,

Reads the formats for all present devices from the device database.

Panics if the underlying C function returns a null pointer.

pub fn read_formats<F>( &mut self, type_: Device, index: u32, callback: F, ) -> Operation<dyn FnMut(ListResult<&Info>)>

where F: FnMut(ListResult<&Info>) + 'static,

Reads an entry from the device database.

Panics if the underlying C function returns a null pointer.

pub fn save_formats<F>( &mut self, type_: Device, index: u32, formats: &mut [&mut Info], callback: F, ) -> Operation<dyn FnMut(bool)>

where F: FnMut(bool) + 'static,

Reads an entry from the device database.

The callback must accept a bool, which indicates success.

Panics if the underlying C function returns a null pointer.

Trait Implementations

impl Drop for DeviceRestore

fn drop(&mut self)

Executes the destructor for this type.

impl Send for DeviceRestore

impl Sync for DeviceRestore