sn_networking 0.3.28

Safe Networking Infrastructure
Documentation 
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// Copyright 2023 MaidSafe.net limited.
//
// This SAFE Network Software is licensed to you under The General Public License (GPL), version 3.
// Unless required by applicable law or agreed to in writing, the SAFE Network Software distributed
// under the GPL Licence is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. Please review the Licences for the specific language governing
// permissions and limitations relating to use of the SAFE Network Software.

/// Based on https://users.rust-lang.org/t/the-best-ring-buffer-library/58489/7

#[derive(Debug)]
pub struct CircularVec<T> {
    inner: std::collections::VecDeque<T>,
}

impl<T> CircularVec<T> {
    pub fn new(capacity: usize) -> Self {
        Self {
            inner: std::collections::VecDeque::with_capacity(capacity),
        }
    }

    pub fn push(&mut self, item: T) {
        if self.inner.len() == self.inner.capacity() {
            let _ = self.inner.pop_front();
        }
        self.inner.push_back(item);
    }

    pub fn contains(&self, item: &T) -> bool
    where
        T: PartialEq,
    {
        self.inner.contains(item)
    }
}