r2d2-diesel

Provides r2d2 support to allow connection pooling with Diesel.

Examples

The examples creates a connection pool with default settings for a PostgreSQL or SQLite database running on localhost, then creates a bunch of threads and acquires a connection from the pool for each thread.

Executable versions are in examples/ which you can run with cargo run --example postgres or cargo run --example sqlite --features sqlite.

extern crate diesel;
extern crate r2d2;
extern crate r2d2_diesel;

use std::thread;

use diesel::pg::PgConnection;
use r2d2_diesel::ConnectionManager;

fn main() {
    let config = r2d2::Config::default();
    let manager = ConnectionManager::<PgConnection>::new("postgres://localhost/");
    let pool = r2d2::Pool::new(config, manager).expect("Failed to create pool.");

    for _ in 0..10i32 {
        let pool = pool.clone();
        thread::spawn(move || {
            let connection = pool.get();

            assert!(connection.is_ok());
        });
    }
}