Enum Event

#[non_exhaustive]
pub enum Event {
    FencedRelease {
        fence: OwnedFd,
    },
    ImmediateRelease,
}

Available on crate feature wayland and Linux only.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

FencedRelease

release buffer with fence

Sent when the compositor has finalised its usage of the associated buffer for the relevant commit, providing a dma_fence which will be signaled when all operations by the compositor on that buffer for that commit have finished.

Once the fence has signaled, and assuming the associated buffer is not pending release from other wl_surface.commit requests, no additional explicit or implicit synchronization is required to safely reuse or destroy the buffer.

This event destroys the zwp_linux_buffer_release_v1 object.

This is a destructor, once received this object cannot be used any longer.

Fields

fence: OwnedFd

fence for last operation on buffer

ImmediateRelease

release buffer immediately

Sent when the compositor has finalised its usage of the associated buffer for the relevant commit, and either performed no operations using it, or has a guarantee that all its operations on that buffer for that commit have finished.

Once this event is received, and assuming the associated buffer is not pending release from other wl_surface.commit requests, no additional explicit or implicit synchronization is required to safely reuse or destroy the buffer.

This event destroys the zwp_linux_buffer_release_v1 object.

This is a destructor, once received this object cannot be used any longer.

Implementations

impl Event

pub fn opcode(&self) -> u16

Get the opcode number of this message

Trait Implementations

impl Debug for Event

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

Formats the value using the given formatter.