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Clean up handling of child process

This commit is contained in:
Ryan Levick 2021-03-11 16:23:25 +01:00
parent 0201e2bbde
commit 302867cf48
1 changed files with 9 additions and 19 deletions
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28
src/bootstrap/bin/rustc.rs
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@ -17,7 +17,7 @@
use std::env;
use std::path::PathBuf;
use std::process::Command;
use std::process::{Child, Command};
use std::str::FromStr;
use std::time::Instant;
@ -171,19 +171,8 @@ fn main() {
let is_test = args.iter().any(|a| a == "--test");
// If the user requested resource usage data, then
// include that in addition to the timing output.
let rusage_data = env::var_os("RUSTC_PRINT_STEP_RUSAGE").and_then(|_| {
#[cfg(windows)]
{
use std::os::windows::io::AsRawHandle;
let handle = child.as_raw_handle();
format_rusage_data(handle)
}
#[cfg(not(windows))]
{
let _child = child;
format_rusage_data()
}
});
let rusage_data =
env::var_os("RUSTC_PRINT_STEP_RUSAGE").and_then(|_| format_rusage_data(child));
eprintln!(
"[RUSTC-TIMING] {} test:{} {}.{:03}{}{}",
crate_name,
@ -221,15 +210,16 @@ fn main() {
}
#[cfg(all(not(unix), not(windows)))]
/// getrusage is not available on non-unix platforms. So for now, we do not
/// bother trying to make a shim for it.
fn format_rusage_data() -> Option<String> {
// In the future we can add this for more platforms
fn format_rusage_data(_child: Child) -> Option<String> {
None
}
#[cfg(windows)]
fn format_rusage_data(handle: std::os::windows::raw::HANDLE) -> Option<String> {
fn format_rusage_data(child: Child) -> Option<String> {
use std::os::windows::io::AsRawHandle;
use winapi::um::{processthreadsapi, psapi, timezoneapi};
let handle = child.as_raw_handle();
macro_rules! try_bool {
($e:expr) => {
if $e != 1 {
@ -295,7 +285,7 @@ fn format_rusage_data(handle: std::os::windows::raw::HANDLE) -> Option<String> {
/// fields. Note that we are focusing mainly on data that we believe to be
/// supplied on Linux (the `rusage` struct has other fields in it but they are
/// currently unsupported by Linux).
fn format_rusage_data() -> Option<String> {
fn format_rusage_data(_child: Child) -> Option<String> {
let rusage: libc::rusage = unsafe {
let mut recv = std::mem::zeroed();
// -1 is RUSAGE_CHILDREN, which means to get the rusage for all children