strawboat 0.2.6

A native storage format based on Apache Arrow.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

mod array;
pub mod batch_read;
pub mod deserialize;
pub use deserialize::{column_iter_to_arrays, ArrayIter};
pub(crate) mod read_basic;
use std::io::BufReader;
pub mod reader;

pub trait NativeReadBuf: std::io::BufRead {
    fn buffer_bytes(&self) -> &[u8];
}

impl<R: std::io::Read> NativeReadBuf for BufReader<R> {
    fn buffer_bytes(&self) -> &[u8] {
        self.buffer()
    }
}

impl NativeReadBuf for &[u8] {
    fn buffer_bytes(&self) -> &[u8] {
        self
    }
}

impl<T: AsRef<[u8]>> NativeReadBuf for std::io::Cursor<T> {
    fn buffer_bytes(&self) -> &[u8] {
        let len = self.position().min(self.get_ref().as_ref().len() as u64);
        &self.get_ref().as_ref()[(len as usize)..]
    }
}

impl<B: NativeReadBuf + ?Sized> NativeReadBuf for Box<B> {
    fn buffer_bytes(&self) -> &[u8] {
        (**self).buffer_bytes()
    }
}

pub trait PageIterator {
    fn swap_buffer(&mut self, buffer: &mut Vec<u8>);
}