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Use Buffered input/output where it makes sense.

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(cherry picked from commit c084bb1568)
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Dawid Ciężarkiewicz 2014-03-19 09:42:34 -07:00 committed by Dawid Ciężarkiewicz
parent 3ab1865177
commit a42bdea8ac
1 changed files with 3 additions and 1 deletions
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4
cat/cat.rs
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@ -17,6 +17,7 @@ extern crate getopts;
use std::os;
use std::io::{print, File};
use std::io::stdio::{stdout_raw, stdin_raw};
use std::io::{BufferedReader, BufferedWriter};
fn main() {
let args = os::args();
@ -96,7 +97,6 @@ fn is_newline_char(byte: u8) -> bool {
}
pub fn exec(files: ~[~str], number: NumberingMode, show_nonprint: bool, show_ends: bool, show_tabs: bool, squeeze_blank: bool) {
let mut writer = stdout_raw();
if NumberNone != number || show_nonprint || show_ends || show_tabs || squeeze_blank {
let mut counter: uint = 1;
@ -108,6 +108,7 @@ pub fn exec(files: ~[~str], number: NumberingMode, show_nonprint: bool, show_end
None => { continue }
};
let mut writer = BufferedWriter::with_capacity(1024 * 8, stdout_raw());
let mut at_line_start = true;
let mut buf = [0, .. 2];
loop {
@ -170,6 +171,7 @@ pub fn exec(files: ~[~str], number: NumberingMode, show_nonprint: bool, show_end
}
let mut buf = [0, .. 100000];
let mut writer = stdout_raw();
// passthru mode
for path in files.iter() {
let mut reader = match open(path.to_owned()) {