Function findConnection [src]

Finds and acquires a connection from the connection pool matching the criteria. If no connection is found, null is returned. Threadsafe.

Prototype

pub fn findConnection(pool: *ConnectionPool, criteria: Criteria) ?*Connection

Parameters

pool: *ConnectionPoolcriteria: Criteria

Source

  pub fn findConnection(pool: *ConnectionPool, criteria: Criteria) ?*Connection {
    pool.mutex.lock();
    defer pool.mutex.unlock();

    var next = pool.free.last;
    while (next) |node| : (next = node.prev) {
        const connection: *Connection = @alignCast(@fieldParentPtr("pool_node", node));
        if (connection.protocol != criteria.protocol) continue;
        if (connection.port != criteria.port) continue;

        // Domain names are case-insensitive (RFC 5890, Section 2.3.2.4)
        if (!std.ascii.eqlIgnoreCase(connection.host(), criteria.host)) continue;

        pool.acquireUnsafe(connection);
        return connection;
    }

    return null;
}  