Struct QueueStats

pub struct QueueStats<T: Ord + Add<Output = T>> {
    pub min: Option<T>,
    pub max: Option<T>,
    pub sum: Option<T>,
    pub len: usize,
}

Stats of the queue.

It provides the following statistics: min and max value in the queue, the sum of all the values and the length of all elements hold in the queue.

The values are computed taking into account only the existent elements in the queue, and not past elements removed because expiration or because they were removed.

You can get the stats object calling to the SumQueue::stats() method of the queue:

use std::time::Duration;
use sum_queue::SumQueue;
let mut queue = SumQueue::new(Duration::from_millis(800));
queue.push(-1);
queue.push(5);
queue.push(2);
let stats = queue.stats();
assert_eq!(stats.min, Some(-1));
assert_eq!(stats.max, Some(5));
assert_eq!(stats.sum, Some(6));
assert_eq!(stats.len, 3);

But you can also get the stats while pushing elements, which it’s more efficient than push and then get the stats:

use std::time::Duration;
use sum_queue::SumQueue;
let mut queue = SumQueue::new(Duration::from_secs(1000));
queue.push(-1);
queue.push(5);
let stats = queue.push_and_stats(2);
assert_eq!(stats.min, Some(-1));
assert_eq!(stats.max, Some(5));
assert_eq!(stats.sum, Some(6));
assert_eq!(stats.len, 3);

Fields

min: Option<T>

min value of the queue

max: Option<T>

max value of the queue

sum: Option<T>

sum of all the values in the queue

len: usize

size of the queue, same than SumQueue::len()