#![crate_type = "bin"]
#![allow(unused_must_use, non_upper_case_globals)]
#![allow(clippy::manual_range_contains)]
use std::io::{self, BufRead, Write};
use std::str::FromStr;
use sysinfo::{
Components, Disks, Groups, Motherboard, Networks, Pid, Product, SUPPORTED_SIGNALS, System,
Users,
};
fn print_help() {
println!(
"\
== Help menu ==
help : shows this menu
quit : exits the program
= Refresh commands =
refresh : reloads all processes information
refresh [pid] : reloads corresponding process information
refresh_components : reloads components information
refresh_cpu : reloads CPU information
refresh_disks : reloads disks information
refresh_networks : reloads networks information
refresh_users : reloads users information
= Process commands =
all : displays all process name and pid
kill [pid] [signal]: sends [signal] to the process with this [pid]. To get the [signal] number, use the `signals` command.
show [pid | name] : shows information of the given process corresponding to [pid | name]
signals : shows the available signals
pid : displays this example's PID
= CPU commands =
brand : displays CPU brand
cpus : displays CPUs state
frequency : displays CPU frequency
vendor_id : displays CPU vendor id
= Users and groups commands =
groups : displays all groups
users : displays all users and their groups
= System commands =
boot_time : displays system boot time
load_avg : displays system load average
system : displays system information (such as name, version and hostname)
uptime : displays system uptime
motherboard : displays motherboard information
product : displays product information
= Extra components commands =
disks : displays disks' information
memory : displays memory state
network : displays network' information
temperature : displays components' temperature"
);
}
fn interpret_input(
input: &str,
sys: &mut System,
networks: &mut Networks,
disks: &mut Disks,
components: &mut Components,
users: &mut Users,
) -> bool {
match input.trim() {
"help" => print_help(),
"refresh_disks" => {
println!("Refreshing disk list...");
disks.refresh(true);
println!("Done.");
}
"refresh_users" => {
println!("Refreshing user list...");
users.refresh();
println!("Done.");
}
"refresh_networks" => {
println!("Refreshing network list...");
networks.refresh(true);
println!("Done.");
}
"refresh_components" => {
println!("Refreshing component list...");
components.refresh(true);
println!("Done.");
}
"refresh_cpu" => {
println!("Refreshing CPUs...");
sys.refresh_cpu_all();
println!("Done.");
}
"signals" => {
for (nb, sig) in SUPPORTED_SIGNALS.iter().enumerate() {
println!("{:2}:{sig:?}", nb + 1);
}
}
"cpus" => {
println!(
"number of physical cores: {}",
System::physical_core_count()
.map(|c| c.to_string())
.unwrap_or_else(|| "Unknown".to_owned()),
);
println!("total CPU usage: {}%", sys.global_cpu_usage());
for cpu in sys.cpus() {
println!("{cpu:?}");
}
}
"memory" => {
println!("total memory: {: >10} KB", sys.total_memory() / 1_000);
println!(
"available memory: {: >10} KB",
sys.available_memory() / 1_000
);
println!("used memory: {: >10} KB", sys.used_memory() / 1_000);
println!("total swap: {: >10} KB", sys.total_swap() / 1_000);
println!("used swap: {: >10} KB", sys.used_swap() / 1_000);
}
"quit" | "exit" => return true,
"all" => {
for (pid, proc_) in sys.processes() {
println!(
"{}:{} status={:?}",
pid,
proc_.name().to_string_lossy(),
proc_.status()
);
}
}
"frequency" => {
for cpu in sys.cpus() {
println!("[{}] {} MHz", cpu.name(), cpu.frequency());
}
}
"vendor_id" => {
println!("vendor ID: {}", sys.cpus()[0].vendor_id());
}
"brand" => {
println!("brand: {}", sys.cpus()[0].brand());
}
"load_avg" => {
let load_avg = System::load_average();
println!("one minute : {}%", load_avg.one);
println!("five minutes : {}%", load_avg.five);
println!("fifteen minutes: {}%", load_avg.fifteen);
}
e if e.starts_with("show ") => {
let tmp: Vec<&str> = e.split(' ').filter(|s| !s.is_empty()).collect();
if tmp.len() != 2 {
println!("show command takes a pid or a name in parameter!");
println!("example: show 1254");
} else if let Ok(pid) = Pid::from_str(tmp[1]) {
match sys.process(pid) {
Some(p) => {
println!("{:?}", *p);
println!(
"Files open/limit: {:?}/{:?}",
p.open_files(),
p.open_files_limit(),
);
}
None => {
println!("pid \"{pid:?}\" not found");
}
}
} else {
let proc_name = tmp[1];
for proc_ in sys.processes_by_name(proc_name.as_ref()) {
println!("==== {} ====", proc_.name().to_string_lossy());
println!("{proc_:?}");
}
}
}
"temperature" => {
for component in components.iter() {
println!("{component:?}");
}
}
"network" => {
for (interface_name, data) in networks.iter() {
println!(
"\
{interface_name}:
ether {}
input data (new / total): {} / {} B
output data (new / total): {} / {} B",
data.mac_address(),
data.received(),
data.total_received(),
data.transmitted(),
data.total_transmitted(),
);
}
}
"show" => {
println!("'show' command expects a pid number or a process name");
}
e if e.starts_with("kill ") => {
let tmp: Vec<&str> = e
.split(' ')
.map(|s| s.trim())
.filter(|s| !s.is_empty())
.collect();
if tmp.len() != 3 {
println!("kill command takes the pid and a signal number in parameter!");
println!("example: kill 1254 9");
} else {
let Ok(pid) = Pid::from_str(tmp[1]) else {
eprintln!("Expected a number for the PID, found {:?}", tmp[1]);
return false;
};
let Ok(signal) = usize::from_str(tmp[2]) else {
eprintln!("Expected a number for the signal, found {:?}", tmp[2]);
return false;
};
let Some(signal) = SUPPORTED_SIGNALS.get(signal) else {
eprintln!(
"No signal matching {signal}. Use the `signals` command to get the \
list of signals.",
);
return false;
};
match sys.process(pid) {
Some(p) => {
if let Some(res) = p.kill_with(*signal) {
println!("kill: {res}");
} else {
eprintln!("kill: signal not supported on this platform");
}
}
None => {
eprintln!("pid not found");
}
}
}
}
"disks" => {
for disk in disks {
println!("{disk:?}");
}
}
"users" => {
for user in users {
println!("{:?} => {:?}", user.name(), user.groups());
}
}
"groups" => {
for group in Groups::new_with_refreshed_list().list() {
println!("{group:?}");
}
}
"boot_time" => {
println!("{} seconds", System::boot_time());
}
"uptime" => {
let up = System::uptime();
let mut uptime = up;
let days = uptime / 86400;
uptime -= days * 86400;
let hours = uptime / 3600;
uptime -= hours * 3600;
let minutes = uptime / 60;
println!("{days} days {hours} hours {minutes} minutes ({up} seconds in total)");
}
x if x.starts_with("refresh") => {
if x == "refresh" {
println!("Getting processes' information...");
sys.refresh_all();
println!("Done.");
} else if x.starts_with("refresh ") {
println!("Getting process' information...");
if let Some(pid) = x
.split(' ')
.filter_map(|pid| pid.parse().ok())
.take(1)
.next()
{
if sys.refresh_processes(sysinfo::ProcessesToUpdate::Some(&[pid]), true) != 0 {
println!("Process `{pid}` updated successfully");
} else {
println!("Process `{pid}` couldn't be updated...");
}
} else {
println!("Invalid [pid] received...");
}
} else {
println!(
"\"{x}\": Unknown command. Enter 'help' if you want to get the commands' \
list.",
);
}
}
"pid" => {
println!(
"PID: {}",
sysinfo::get_current_pid().expect("failed to get PID")
);
}
"system" => {
println!(
"System name: {}\n\
System kernel version: {}\n\
System OS version: {}\n\
System OS (long) version: {}\n\
System host name: {}\n\
System kernel: {}",
System::name().unwrap_or_else(|| "<unknown>".to_owned()),
System::kernel_version().unwrap_or_else(|| "<unknown>".to_owned()),
System::os_version().unwrap_or_else(|| "<unknown>".to_owned()),
System::long_os_version().unwrap_or_else(|| "<unknown>".to_owned()),
System::host_name().unwrap_or_else(|| "<unknown>".to_owned()),
System::kernel_long_version(),
);
}
"motherboard" => match Motherboard::new() {
Some(m) => println!("{m:#?}"),
None => println!("No motherboard information available"),
},
"product" => {
println!("{:#?}", Product);
}
e => {
println!(
"\"{e}\": Unknown command. Enter 'help' if you want to get the commands' \
list.",
);
}
}
false
}
fn main() {
println!("Getting system information...");
let mut system = System::new_all();
let mut networks = Networks::new_with_refreshed_list();
let mut disks = Disks::new_with_refreshed_list();
let mut components = Components::new_with_refreshed_list();
let mut users = Users::new_with_refreshed_list();
println!("Done.");
let t_stin = io::stdin();
let mut stin = t_stin.lock();
let mut done = false;
println!("To get the commands' list, enter 'help'.");
while !done {
let mut input = String::new();
write!(&mut io::stdout(), "> ");
io::stdout().flush();
stin.read_line(&mut input);
if input.is_empty() {
println!("\nLeaving, bye!");
break;
}
if (&input as &str).ends_with('\n') {
input.pop();
}
done = interpret_input(
input.as_ref(),
&mut system,
&mut networks,
&mut disks,
&mut components,
&mut users,
);
}
}