juiz_core 0.0.5

Core library for JUIZ application. This package is not required if you want to build juiz functional module.
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use std::sync::{Arc, RwLock, RwLockReadGuard, RwLockWriteGuard};
use crate::prelude::*;

use super::Broker;

use juiz_sdk::anyhow::anyhow;


#[derive(Clone)]
pub struct BrokerPtr {
    identifier: Identifier,
    ptr: Arc<RwLock<dyn Broker>>,
}


impl BrokerPtr {

    pub fn new(br: impl Broker) -> Self {
        let identifier = br.identifier().clone();
        BrokerPtr{
            identifier,
            ptr: Arc::new(RwLock::new(br))
        }
    }

    pub fn identifier(&self) -> &Identifier {
        &self.identifier
    }
    
    pub fn lock(&self) -> JuizResult<RwLockReadGuard<dyn Broker>> {
        self.ptr.read().or_else(|_|{ Err(anyhow!(JuizError::ObjectLockError{target:"BrokerPtr".to_owned()})) })
    }

    pub fn lock_mut(&self) -> JuizResult<RwLockWriteGuard<dyn Broker>> {
        self.ptr.write().or_else(|_|{ Err(anyhow!(JuizError::ObjectLockError{target:"BrokerPtr".to_owned()})) })
    }
}