remove psutil which is too old

libs/hbb_common/Cargo.toml

@@ -30,6 +30,7 @@ filetime = "0.2"
 sodiumoxide = "0.2"
 regex = "1.4"
 tokio-socks = { git = "https://github.com/fufesou/tokio-socks" }
+sysinfo = "0.22"
 
 [target.'cfg(not(any(target_os = "android", target_os = "ios")))'.dependencies]
 mac_address = "1.1"

libs/hbb_common/src/lib.rs

@@ -27,12 +27,13 @@ pub use anyhow::{self, bail};
 pub use futures_util;
 pub mod config;
 pub mod fs;
+pub use mac_address;
 pub use regex;
 pub use sodiumoxide;
+pub use sysinfo;
 pub use tokio_socks;
 pub use tokio_socks::IntoTargetAddr;
 pub use tokio_socks::TargetAddr;
-pub use mac_address;
 
 #[cfg(feature = "quic")]
 pub type Stream = quic::Connection;
@@ -185,6 +186,17 @@ pub fn get_version_number(v: &str) -> i64 {
     n
 }
 
+pub fn get_process(pid: i32) -> Option<sysinfo::Process> {
+    use sysinfo::{System, SystemExt};
+    let mut sys = System::new();
+    sys.refresh_processes();
+    sys.process(pid).cloned()
+}
+
+pub fn get_current_process() -> Option<sysinfo::Process> {
+    get_process(std::process::id() as _)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;