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#![cfg_attr(nightly, feature(test))]
#![allow(dead_code)]
#[cfg(nightly)] extern crate test;
use std::{
io::{
Read,
},
fmt::Write,
};
type HASHER = hash::Crc64Checksum;
#[cfg(test)]
mod tests {
use super::*;
use std::collections::HashMap;
#[cfg(nightly)]
use test::{Bencher, black_box,};
#[test]
fn distrubution()
{
const THREADS: usize = 10;
const ITERATIONS: usize = 1000;
use std::{
sync::{
Arc,
Mutex,
},
thread,
};
let global = Arc::new(Mutex::new(HashMap::with_capacity(map::KANA.len()+map::KANA_SUB.len())));
let _ = {
let mut global = global.lock().unwrap();
for init_c in map::KANA.iter().chain(map::KANA_SUB.iter())
{
global.insert(*init_c, 0);
}
for init_c in map::KANA_SWAP.iter().chain(map::KANA_SWAP2.iter())
{
if let &Some(init_c) = init_c {
global.insert(init_c, 0);
}
}
};
fn do_work(num: usize, global: Arc<Mutex<HashMap<char, usize>>>, mut local: HashMap<char, usize>)
{
let mut random_buffer = [0u8; 4096];
let context = ctx::Context::new(ctx::Algorithm::Sha256, salt::Salt::none());
for _ in 0..num
{
getrandom::getrandom(&mut random_buffer[..]).unwrap();
let kana = generate(&context, &random_buffer[..]).unwrap();
for c in kana.chars()
{
*local.get_mut(&c).unwrap() += 1;
}
}
let mut global = global.lock().unwrap();
for (k,v) in local.into_iter()
{
*global.get_mut(&k).unwrap() += v;
}
}
let joiners: Vec<thread::JoinHandle<()>> = {
let lock = global.lock().unwrap();
(0..THREADS).map(|_| {
let global = Arc::clone(&global);
let local = lock.clone();
thread::spawn(move || {
do_work(ITERATIONS, global, local);
})
}).collect()
};
for x in joiners.into_iter()
{
x.join().unwrap();
}
println!("Running {} x {} ({}) hashes (sha256)", ITERATIONS, THREADS, (ITERATIONS*THREADS));
let global = global.lock().unwrap();
let mut lowest = usize::MAX;
let mut highest = 0;
let mut lowest_char = '.';
let mut highest_char = '.';
const FMAX: f64 = (ITERATIONS*THREADS) as f64;
let global = {
let mut out = Vec::with_capacity(global.len());
for (&k, &v) in global.iter()
{
out.push((k, v));
}
out.sort_by(|b, a| a.1.partial_cmp(&b.1).unwrap());
out.into_iter()
};
for (k, v) in global
{
println!("{} -> {} ({}%)", k, v, ((v as f64)/FMAX)*100.00);
if v < lowest {
lowest = v;
lowest_char = k;
}
if v > highest {
highest = v;
highest_char = k;
}
}
println!("Lowest was '{}' {} ({}%)", lowest_char, lowest, ((lowest as f64)/FMAX)*100.00);
println!("Highest was '{}' {} ({}%)", highest_char, highest, ((highest as f64)/FMAX)*100.00);
println!("Range was {}", highest-lowest);
assert!(lowest > 0);
}
#[test]
fn it_works() -> Result<(), error::Error>
{
let input = b"lolis are super ultra mega cute!";
let context = ctx::Context::default();
let kana = generate(&context, input)?;
println!("kana: {}", kana);
assert_eq!(kana, "もシちゅゆをヌョ");
Ok(())
}
#[test]
fn rng()
{
let input = b"loli";
for _ in 0..100
{
let context = ctx::Context::new(ctx::Algorithm::Sha256, salt::Salt::random().unwrap());
let kana = generate(&context, input).unwrap();
println!("kana: {}", kana);
}
}
#[test]
fn max_len()
{
fn max_length(algo: ctx::Algorithm, data_len: usize) -> usize
{
let mut output: libc::size_t = 0;
unsafe {
assert_eq!(khash_max_length(algo.into(), data_len.into(), &mut output as *mut libc::size_t), GENERIC_SUCCESS);
}
output
}
let input = "owowowoakpwodkapowkdapowkdpaokwpdoakwd";
let algos = [ctx::Algorithm::Crc32, ctx::Algorithm::Crc64, ctx::Algorithm::Sha256, ctx::Algorithm::Sha256Truncated];
for i in 0..1000
{
let max_len = max_length(algos[i%algos.len()].clone(), 0);
print!("{} - len of {:?}: {}... ", i, algos[i%algos.len()], max_len);
let len = {
let con = ctx::Context::new(algos[i%algos.len()].clone(), salt::Salt::random().unwrap());
generate(&con, input).unwrap().len()
};
assert!(len < max_len);
println!("\t\tOK {}", len);
}
}
}
pub const BUFFER_SIZE: usize = 4096;
mod array;
mod reinterpret;
mod ext;
mod group;
mod sixteen;
use sixteen::Bit16IterExt;
mod def;
mod map;
pub mod salt;
mod hash;
mod provider;
mod mnemonic;
pub mod error;
pub mod ctx;
mod stream;
pub use stream::Digest;
#[macro_use]
mod ffi;
use ffi::*;
fn compute<T: Read>(context: &ctx::Context, mut from: T) -> Result<(usize, String), error::Error>
{
let (read, hash) = context.compute(&mut from)?;
let mut output = String::with_capacity(128);
for element in hash.into_iter()
.into_16()
.map(|bytes| mnemonic::Digest::new(&u16::to_le_bytes(bytes)[..]))
{
write!(output, "{}", element)?;
}
Ok((read,output))
}
pub fn generate<T: AsRef<[u8]>>(context: &ctx::Context, bytes: T) -> Result<String, error::Error>
{
let bytes = bytes.as_ref();
let mut nbytes = bytes;
let (ok, string) = compute(context, &mut nbytes)?;
if ok == bytes.len() {
Ok(string)
} else {
return Err(error::Error::Length{expected: bytes.len(), got: ok});
}
}
#[inline] pub fn generate_stream<T: Read+?Sized>(context: &ctx::Context, from: &mut T) -> Result<(usize, String), error::Error>
{
compute(context, from)
}
use std::ffi::c_void;
use libc::{
size_t,
c_char,
};
use malloc_array::{
HeapArray,
};
#[cfg(feature="ffi")]
mod c;
#[cfg(feature="ffi")]
pub use c::*;