random-access-memory 4.0.0-alpha

Continuously read and write to memory using random offsets and lengths
Documentation 
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use criterion::{Criterion, criterion_group, criterion_main};
use random_access_memory as ram;
use random_access_storage::RandomAccess;

fn write_hello_world(c: &mut Criterion) {
    c.bench_function("write hello world", |b| {
        b.iter(|| {
            async_std::task::block_on(async {
                let file = ram::RandomAccessMemory::default();
                file.write(0, b"hello").await.unwrap();
                file.write(5, b" world").await.unwrap();
            })
        })
    });
}

fn read_hello_world(c: &mut Criterion) {
    c.bench_function("read hello world", |b| {
        async_std::task::block_on(async {
            let file = ram::RandomAccessMemory::default();
            file.write(0, b"hello").await.unwrap();
            file.write(5, b" world").await.unwrap();
            b.iter(|| {
                async_std::task::block_on(async {
                    let _text = file.read(0, 11).await.unwrap();
                })
            });
        })
    });
}

fn read_write_hello_world(c: &mut Criterion) {
    c.bench_function("read/write hello world", |b| {
        b.iter(|| {
            async_std::task::block_on(async {
                let file = ram::RandomAccessMemory::default();
                file.write(0, b"hello").await.unwrap();
                file.write(5, b" world").await.unwrap();
                let _text = file.read(0, 11).await.unwrap();
            })
        })
    });
}

fn write_del_hello_world(c: &mut Criterion) {
    c.bench_function("write/del hello world", |b| {
        b.iter(|| {
            async_std::task::block_on(async {
                let file = ram::RandomAccessMemory::default();
                file.write(0, b"hello world").await.unwrap();
                file.del(0, 5).await.unwrap();
                file.del(5, 6).await.unwrap();
            })
        })
    });
}

criterion_group!(
    benches,
    write_hello_world,
    read_hello_world,
    read_write_hello_world,
    write_del_hello_world,
);
criterion_main!(benches);