Shortened processes names

[aellwein]

Please provide any of the following information if relevant:

• rust-psutil version: 3.1.0 (also reproducable with current master, "git+https://github.com/rust-psutil/rust-psutil#3dbb40fddee611c7bd80c2cf8dd2fec8b253caf0")
• target platform info
  • kernel version: MacOS Catalina 10.15.6
  • architecture: Darwin
  • (if linux) distro:
• any relevant hardware info: nothing special

While iterating through psutil::process::processes(), the processes names are somehow shortened.
if pid and name are printed, i see only the starting parts, like "Google Chrome He" instead of "Google Chrome Helper"
and so on.

[cjbassi]

Can you give a minimal example? Also which field is it that's shrunk, cmdline or name?

[aellwein]

Sure! A simple example

fn main() {
    let ps_vec = psutil::process::processes().unwrap();
    for res in ps_vec {
        match res {
            Ok(ps) => println!("PID: {:?} NAME: {:?}", ps.pid(), ps.name().unwrap()),
            Err(_) => {}
        }
    }
}

this produces (excerpt):

PID: 33189 NAME: "psutil-rs"
PID: 33028 NAME: "MTLCompilerServi"
PID: 33027 NAME: "Activity Monitor"
PID: 32917 NAME: "Google Chrome He"
PID: 32912 NAME: "Google Chrome He"
PID: 32742 NAME: "Google Chrome He"
PID: 31838 NAME: "rust-analyzer-ma"
PID: 31833 NAME: "VSCodium Helper "
PID: 31785 NAME: "VSCodium Helper "
PID: 31783 NAME: "gitstatusd-darwi"
PID: 29975 NAME: "QuickLookUIServi"
PID: 28642 NAME: "VTDecoderXPCServ"
PID: 47726 NAME: "com.apple.CoreSi"
PID: 13694 NAME: "com.apple.WebKit"
PID: 9044 NAME: "MTLCompilerServi"
PID: 9043 NAME: "MTLCompilerServi"
PID: 25967 NAME: "com.apple.audio."
PID: 25934 NAME: "com.apple.audio."
PID: 21592 NAME: "recentsd"
PID: 15433 NAME: "IMAutomaticHisto"
PID: 15322 NAME: "AMPArtworkAgent"
PID: 15321 NAME: "com.apple.audio."
PID: 15320 NAME: "com.apple.BKAgen"
PID: 15319 NAME: "PodcastContentSe"
PID: 406 NAME: "QuickLookUIServi"
PID: 405 NAME: "backgroundtaskma"
PID: 402 NAME: "accountsd"
PID: 401 NAME: "rapportd"
PID: 377 NAME: "coreauthd"
PID: 190 NAME: "loginwindow"

BTW using cmdline() doesn't work at all:

fn main() {
    let ps_vec = psutil::process::processes().unwrap();
    for res in ps_vec {
        match res {
            Ok(ps) => println!("PID: {:?} NAME: {:?}", ps.pid(), ps.cmdline().unwrap()),
            Err(_) => {}
        }
    }
}

produces

thread 'main' panicked at 'not yet implemented', /Users/alex/.cargo/registry/src/github.com-1ecc6299db9ec823/psutil-3.2.0/src/process/sys/macos/process.rs:103:9
stack backtrace:
   0: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
   1: core::fmt::write
   2: std::io::Write::write_fmt
   3: std::panicking::default_hook::{{closure}}
   4: std::panicking::default_hook
   5: std::panicking::rust_panic_with_hook
   6: std::panicking::begin_panic
   7: psutil::process::sys::macos::process::<impl psutil::process::process::Process>::sys_cmdline
   8: psutil::process::process::Process::cmdline
   9: psutil_rs::main
  10: std::rt::lang_start::{{closure}}
  11: std::rt::lang_start_internal
  12: std::rt::lang_start
  13: main

P.S.: i tried with psutil 3.1.0, 3.2.0 and also with the version mentioned above, they all produce the same results.

[cjbassi]

I tried the example on Linux and it seems to be working for me, so it must be a bug with the name method on macos.

[aellwein]

I just stumbled upon this issue:
heim-rs/heim#262