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https://github.com/Wojtek242/rwmstatus.git
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Split into binary and lib
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32e6201270
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169
src/lib.rs
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169
src/lib.rs
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@ -0,0 +1,169 @@
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//! # rwmstatus-lib
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//!
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//! Library for status monitor displays.
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//!
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//! This is part of a larger project to port various
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//! [suckless.org](https://suckless.org/) programs to Rust, a programming
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//! language that sucks less.
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extern crate chrono;
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extern crate chrono_tz;
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extern crate libc;
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// std module imports
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use std::io;
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// std type imports
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use std::io::prelude::*;
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use std::fs::File;
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// Other external imports
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use chrono::prelude::*;
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// Internal module imports
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mod config;
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use config::*;
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/// Read the contents of the file base/filename and return as a String.
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#[inline]
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fn read_file(base: &str, filename: &str) -> io::Result<String> {
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let mut file = File::open([base, filename].join("/"))?;
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let mut contents = String::new();
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file.read_to_string(&mut contents)?;
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Ok(contents)
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}
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/// Return temperature reads from all monitors.
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pub fn get_temperatures() -> String {
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let mut temp_strs: Vec<String> = vec![];
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for hwmon in HWMONS.iter() {
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temp_strs.push(get_temp(&[HWMON_PATH, hwmon].join("/")));
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}
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temp_strs.join("|")
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}
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/// Return temperature read from the provided monitor.
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fn get_temp(hwmon: &str) -> String {
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match read_file(hwmon, "temp1_input") {
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Ok(contents) => {
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match contents.trim().parse::<f64>() {
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Ok(val) => format!("{:02.0}°C", val / 1000.0),
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Err(_) => format!(""),
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}
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}
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Err(_) => format!(""),
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}
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}
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/// Return the three load average values.
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pub fn get_load_avgs() -> String {
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let mut avgs: [libc::c_double; 3] = [0.0; 3];
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let rc: libc::c_int;
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unsafe {
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rc = libc::getloadavg(&mut avgs[0] as *mut libc::c_double, 3);
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}
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if rc < 0 {
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return format!("");
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}
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format!("{:.2} {:.2} {:.2}", avgs[0], avgs[1], avgs[2])
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}
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/// Return battery status for all batteries.
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pub fn get_batteries() -> String {
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let mut batt_strs: Vec<String> = vec![];
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for batt in BATTS.iter() {
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batt_strs.push(get_batt(&[BATT_PATH, batt].join("/")));
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}
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batt_strs.join("|")
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}
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/// Return battery status for the battery at the provided path.
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fn get_batt(batt: &str) -> String {
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match read_file(&batt, "present") {
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Ok(contents) => {
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if !contents.starts_with('1') {
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return format!("not present");
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}
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}
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Err(_) => return format!(""),
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};
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let co = match read_file(&batt, "charge_full_design") {
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Ok(contents) => contents,
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Err(_) => {
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match read_file(&batt, "energy_full_design") {
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Ok(contents) => contents,
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Err(_) => return format!(""),
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}
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}
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};
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let desired_capacity: u64 = match co.trim().parse() {
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Ok(val) => val,
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Err(_) => return format!("invalid"),
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};
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let co = match read_file(&batt, "charge_now") {
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Ok(contents) => contents,
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Err(_) => {
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match read_file(&batt, "energy_now") {
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Ok(contents) => contents,
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Err(_) => return format!(""),
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}
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}
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};
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let remaining_capacity: u64 = match co.trim().parse() {
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Ok(val) => val,
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Err(_) => return format!("invalid"),
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};
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let status: char = match read_file(&batt, "status") {
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Ok(contents) => {
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match &contents.trim()[..] {
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"Full" => 'F',
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"Discharging" => '-',
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"Charging" => '+',
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_ => '?',
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}
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}
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Err(_) => '?',
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};
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format!(
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"{:.0}%{}",
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((remaining_capacity as f64) / (desired_capacity as f64)) * 100.0,
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status
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)
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}
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/// Return times for all configured time zones.
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pub fn get_times() -> String {
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let mut tz_strs: Vec<String> = vec![];
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for tz in TZS.iter() {
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tz_strs.push(format!("{}:{}", tz.0, get_tz_time(tz.1, "%H:%M")));
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}
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tz_strs.push(get_tz_time(TZ_DEF, "KW %W %a %d %b %H:%M %Z %Y"));
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tz_strs.join(" ")
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}
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/// Get the time for the provided time zone.
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fn get_tz_time(tz_name: &str, fmt: &str) -> String {
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match tz_name.parse::<chrono_tz::Tz>() {
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Ok(tz) => {
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let utc = Utc::now().naive_utc();
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format!("{}", tz.from_utc_datetime(&utc).format(fmt))
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}
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Err(_) => return format!(""),
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}
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}
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170
src/main.rs
170
src/main.rs
@ -8,184 +8,25 @@
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//! [suckless.org](https://suckless.org/) programs to Rust, a programming
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//! language that sucks less.
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extern crate chrono;
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extern crate chrono_tz;
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extern crate libc;
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// Lib imports
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extern crate rwmstatus;
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use rwmstatus::*;
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extern crate x11;
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// std module imports
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use std::io;
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use std::process;
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use std::ptr;
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use std::thread;
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use std::time;
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// std type imports
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use std::io::prelude::*;
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use std::ffi::CString;
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use std::fs::File;
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// x11 imports
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use x11::xlib::Display;
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use x11::xlib::{XDefaultRootWindow, XOpenDisplay, XStoreName, XSync};
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// Other external imports
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use chrono::prelude::*;
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// Internal module imports
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mod config;
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use config::*;
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/// Convert a Rust string to a CString and panic if it fails.
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#[inline]
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fn cstring(string: &str) -> CString {
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CString::new(string).expect(&format!("CString::new({}) failed.", string))
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}
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/// Read the contents of the file base/filename and return as a String.
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#[inline]
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fn read_file(base: &str, filename: &str) -> io::Result<String> {
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let mut file = File::open([base, filename].join("/"))?;
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let mut contents = String::new();
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file.read_to_string(&mut contents)?;
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Ok(contents)
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}
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/// Return temperature reads from all monitors.
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fn get_temperatures() -> String {
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let mut temp_strs: Vec<String> = vec![];
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for hwmon in HWMONS.iter() {
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temp_strs.push(get_temp(&[HWMON_PATH, hwmon].join("/")));
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}
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temp_strs.join("|")
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}
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/// Return temperature read from the provided monitor.
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fn get_temp(hwmon: &str) -> String {
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match read_file(hwmon, "temp1_input") {
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Ok(contents) => {
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match contents.trim().parse::<f64>() {
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Ok(val) => format!("{:02.0}°C", val / 1000.0),
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Err(_) => format!(""),
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}
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}
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Err(_) => format!(""),
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}
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}
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/// Return the three load average values.
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fn get_load_avgs() -> String {
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let mut avgs: [libc::c_double; 3] = [0.0; 3];
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let rc: libc::c_int;
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unsafe {
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rc = libc::getloadavg(&mut avgs[0] as *mut libc::c_double, 3);
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}
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if rc < 0 {
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return format!("");
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}
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format!("{:.2} {:.2} {:.2}", avgs[0], avgs[1], avgs[2])
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}
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/// Return battery status for all batteries.
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fn get_batteries() -> String {
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let mut batt_strs: Vec<String> = vec![];
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for batt in BATTS.iter() {
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batt_strs.push(get_batt(&[BATT_PATH, batt].join("/")));
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}
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batt_strs.join("|")
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}
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/// Return battery status for the battery at the provided path.
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fn get_batt(batt: &str) -> String {
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match read_file(&batt, "present") {
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Ok(contents) => {
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if !contents.starts_with('1') {
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return format!("not present");
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}
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}
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Err(_) => return format!(""),
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};
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let co = match read_file(&batt, "charge_full_design") {
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Ok(contents) => contents,
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Err(_) => {
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match read_file(&batt, "energy_full_design") {
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Ok(contents) => contents,
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Err(_) => return format!(""),
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}
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}
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};
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let desired_capacity: u64 = match co.trim().parse() {
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Ok(val) => val,
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Err(_) => return format!("invalid"),
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};
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let co = match read_file(&batt, "charge_now") {
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Ok(contents) => contents,
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Err(_) => {
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match read_file(&batt, "energy_now") {
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Ok(contents) => contents,
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Err(_) => return format!(""),
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}
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}
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};
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let remaining_capacity: u64 = match co.trim().parse() {
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Ok(val) => val,
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Err(_) => return format!("invalid"),
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};
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let status: char = match read_file(&batt, "status") {
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Ok(contents) => {
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match &contents.trim()[..] {
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"Full" => 'F',
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"Discharging" => '-',
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"Charging" => '+',
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_ => '?',
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}
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}
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Err(_) => '?',
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};
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format!(
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"{:.0}%{}",
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((remaining_capacity as f64) / (desired_capacity as f64)) * 100.0,
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status
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)
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}
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/// Return times for all configured time zones.
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fn get_times() -> String {
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let mut tz_strs: Vec<String> = vec![];
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for tz in TZS.iter() {
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tz_strs.push(format!("{}:{}", tz.0, get_tz_time(tz.1, "%H:%M")));
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}
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tz_strs.push(get_tz_time(TZ_DEF, "KW %W %a %d %b %H:%M %Z %Y"));
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tz_strs.join(" ")
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}
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/// Get the time for the provided time zone.
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fn get_tz_time(tz_name: &str, fmt: &str) -> String {
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match tz_name.parse::<chrono_tz::Tz>() {
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Ok(tz) => {
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let utc = Utc::now().naive_utc();
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format!("{}", tz.from_utc_datetime(&utc).format(fmt))
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}
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Err(_) => return format!(""),
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}
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}
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fn main() {
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let display: *mut Display;
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@ -204,7 +45,8 @@ fn main() {
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let batts = get_batteries();
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let times = get_times();
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let status = cstring(&format!("T:{} L:{} B:{} {}", temps, avgs, batts, times));
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let status = CString::new(format!("T:{} L:{} B:{} {}", temps, avgs, batts, times))
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.expect("Failed to create status CString.");
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unsafe {
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XStoreName(display, XDefaultRootWindow(display), status.as_ptr());
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XSync(display, false as i32);
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