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//! Trait definition for cross-platform browser use crate::{EventLoop, NetworkInterface, Result, ServiceType, TxtRecord}; use std::any::Any; use std::sync::Arc; /// Interface for interacting with underlying mDNS implementation service browsing capabilities. pub trait TMdnsBrowser { /// Creates a new `MdnsBrowser` that browses for the specified `kind` (e.g. `_http._tcp`) fn new(service_type: ServiceType) -> Self; /// Sets the network interface on which to browse for services on. /// /// Most applications will want to use the default value `NetworkInterface::Unspec` to browse /// on all available interfaces. fn set_network_interface(&mut self, interface: NetworkInterface); /// Sets the [`ServiceDiscoveredCallback`] that is invoked when the browser has discovered and /// resolved a service. /// /// [`ServiceDiscoveredCallback`]: ../type.ServiceDiscoveredCallback.html fn set_service_discovered_callback( &mut self, service_discovered_callback: Box<ServiceDiscoveredCallback>, ); /// Sets the optional user context to pass through to the callback. This is useful if you need /// to share state between pre and post-callback. The context type must implement `Any`. fn set_context(&mut self, context: Box<dyn Any>); /// Starts the browser. Returns an `EventLoop` which can be called to keep the browser alive. fn browse_services(&mut self) -> Result<EventLoop>; } /// Callback invoked from [`MdnsBrowser`] once a service has been discovered and resolved. /// /// # Arguments /// * `discovered_service` - The service that was disovered /// * `context` - The optional user context passed through /// /// [`MdnsBrowser`]: type.MdnsBrowser.html pub type ServiceDiscoveredCallback = dyn Fn(Result<ServiceDiscovery>, Option<Arc<dyn Any>>); /// Represents a service that has been discovered by a [`MdnsBrowser`]. /// /// [`MdnsBrowser`]: type.MdnsBrowser.html #[derive( Debug, Getters, Builder, BuilderDelegate, Serialize, Deserialize, Clone, PartialEq, Eq, )] pub struct ServiceDiscovery { name: String, service_type: ServiceType, domain: String, host_name: String, address: String, port: u16, txt: Option<TxtRecord>, }