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wry/src/pipewire/pw_object.rs
2022-07-31 11:25:57 +02:00

52 lines
1.2 KiB
Rust

use {
crate::{pipewire::pw_parser::PwParser, utils::numcell::NumCell},
std::{cell::Cell, fmt::Debug, rc::Rc},
thiserror::Error,
};
pub trait PwObjectBase {
fn data(&self) -> &PwObjectData;
fn interface(&self) -> &str;
fn handle_msg(self: Rc<Self>, opcode: u8, parser: PwParser<'_>) -> Result<(), PwObjectError>;
fn event_name(&self, opcode: u8) -> Option<&'static str>;
}
pub trait PwObject: PwObjectBase {
fn bound_id(&self, id: u32) {
let _ = id;
}
fn done(&self) {}
fn break_loops(&self) {}
}
pub struct PwObjectData {
pub id: u32,
pub bound_id: Cell<Option<u32>>,
pub sync_id: NumCell<u32>,
}
#[derive(Debug, Error)]
#[error("An error occurred in a `{interface}`")]
pub struct PwObjectError {
pub interface: &'static str,
#[source]
pub source: PwObjectErrorType,
}
#[derive(Debug, Error)]
pub enum PwObjectErrorType {
#[error("Unknown event {0}")]
UnknownEvent(u8),
#[error("An error occurred in event `{method}`")]
EventError {
method: &'static str,
#[source]
source: Box<dyn std::error::Error>,
},
}
pub trait PwOpcode: Debug {
fn id(&self) -> u8;
}