r2d2 v0.8.0 Release Notes

Release Date: 2017-11-26 // almost 5 years ago
  • ๐Ÿ”„ Changed

    • ๐Ÿ”ง Pool configuration has changed. Rather than constructing a Config and passing it to the Pool constructor, you now configure a Builder which then directly constructs the pool:

      // In 0.7.x
      let config = Config::builder()
          .min_idle(3)
          .build();
      let pool = Pool::new(config, manager)?;
      
      // In 0.8.x
      let pool = Pool::builder()
          .min_idle(3)
          .build(manager)?;
      
    • 0๏ธโƒฃ The Pool::new method can be used to construct a Pool with default settings:

      // In 0.7.x
      let config = Config::default();
      let pool = Pool::new(config, manager)?;
      
      // In 0.8.x
      let pool = Pool::new(manager)?;
      
    • The initialization_fail_fast configuration option has been replaced with separate Builder::build and Builder::build_unchecked methods. The second returns a Pool directly without wrapping it in a Result, and does not check that connections are being successfully opened:

      // In 0.7.x
      let config = Config::builder()
          .initialization_fail_fast(false)
          .build();
      let pool = Pool::new(config, manager).unwrap();
      
      // In 0.8.x
      let pool = Pool::builder().build_unchecked(manager);
      
    • ๐Ÿ”€ The InitializationError and GetTimeout error types have been merged into a unified Error type.

    • The Pool::config method has been replaced with accessor methods on Pool to directly access configuration, such as Pool::min_idle.

    • The scheduled_thread_pool crate has been upgraded from 0.1 to 0.2.

    โœ‚ Removed

    • โฑ The deprecated Builder::num_threads method has been removed. Construct a ScheduledThreadPool and set it via Builder::thread_pool instead.