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// -*- coding: utf-8 -*-
//
// Copyright 2021 Michael Buesch <m@bues.ch>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
use lazy_static::lazy_static;
use std::sync::{Arc, RwLock};
lazy_static! {
static ref PRINT_SINGLETON: Arc<RwLock<Print>> = Arc::new(RwLock::new(Print::new()));
}
#[derive(PartialEq, Eq, PartialOrd, Ord, Copy, Clone, Debug)]
#[allow(dead_code)]
pub enum PrintLevel {
Silent,
Error,
Warning,
Info,
Debug,
}
pub struct Print {
level: PrintLevel,
}
macro_rules! define_printer {
($funcname:ident, $level:path, $prefix:literal) => {
#[allow(dead_code)]
pub fn $funcname(msg: &str) {
let level = PRINT_SINGLETON.read().unwrap().level;
if level >= $level {
if level == PrintLevel::Error || level == PrintLevel::Warning {
eprintln!("{}{}", $prefix, msg);
} else {
println!("{}{}", $prefix, msg);
}
}
}
}
}
impl Print {
fn new() -> Print {
Print {
level: PrintLevel::Info,
}
}
pub fn set_level(level: PrintLevel) {
let mut p = PRINT_SINGLETON.write().unwrap();
p.level = level;
}
pub fn set_level_number(level: u8) {
Print::set_level(match level {
0 => PrintLevel::Silent,
1 => PrintLevel::Error,
2 => PrintLevel::Warning,
3 => PrintLevel::Info,
4 => PrintLevel::Debug,
_ => PrintLevel::Debug,
});
}
define_printer!(error, PrintLevel::Error, "ERROR: ");
define_printer!(warning, PrintLevel::Warning, "Warning: ");
define_printer!(info, PrintLevel::Info, "");
define_printer!(debug, PrintLevel::Debug, "Debug: ");
}
// vim: ts=4 sw=4 expandtab
|
