#![feature(test)]
extern crate quick_csv as csv;
extern crate rustc_serialize;
extern crate test;
use std::fmt::{Debug, Display};
use std::fs;
use std::io::Read;
use test::Bencher;
use csv::Csv;
static CSV_DATA: &'static str = "./examples/data/bench.csv";
fn ordie<T, E: Debug+Display>(r: Result<T, E>) -> T {
r.or_else(|e: E| -> Result<T, E> { panic!(format!("{:?}", e)) }).unwrap()
}
fn file_to_mem(fp: &str) -> Vec<u8> {
let mut f = ordie(fs::File::open(fp));
let mut bs = vec![];
ordie(f.read_to_end(&mut bs));
bs
}
#[bench]
fn str_records(b: &mut Bencher) {
let data = file_to_mem(CSV_DATA);
b.bytes = data.len() as u64;
b.iter(|| {
let dec = Csv::from_reader(&*data);
for row in dec.into_iter() {
for c in row.unwrap().columns() {
let _ = c;
}
}
})
}
#[bench]
fn bytes_records(b: &mut Bencher) {
let data = file_to_mem(CSV_DATA);
b.bytes = data.len() as u64;
b.iter(|| {
let dec = Csv::from_reader(&*data);
for row in dec.into_iter() {
for c in row.unwrap().bytes_columns() {
let _ = c;
}
}
})
}
#[allow(dead_code)]
#[derive(RustcDecodable)]
struct Play {
gameid: String,
qtr: i32,
min: Option<i32>,
sec: Option<i32>,
team_off: String,
team_def: String,
down: Option<i32>,
togo: Option<i32>,
ydline: Option<i32>,
description: String,
offscore: i32,
defscore: i32,
season: i32,
}
#[bench]
fn decoded_records(b: &mut Bencher) {
let data = file_to_mem(CSV_DATA);
b.bytes = data.len() as u64;
b.iter(|| {
let dec = Csv::from_reader(&*data);
for row in dec.skip(1).into_iter() {
let _ = row.unwrap().decode::<Play>().unwrap();
}
})
}