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[AIX] Update tests/ui/wait-forked-but-failed-child.rs to accomodate exiting and idle processes. #136556

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Merged
merged 2 commits into from
Feb 8, 2025
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[AIX] Update tests/ui/wait-forked-but-failed-child.rs to accomodate exiting and idle processes. #136556

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6c4cf30
[AIX] Update tests/ui/wait-forked-but-failed-child.rs to accomodate e…
amy-kwan Feb 4, 2025
bdaf7a8
Use split_whitespace() when filtering lines in the ps output
amy-kwan Feb 6, 2025
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11 changes: 10 additions & 1 deletion tests/ui/wait-forked-but-failed-child.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -31,8 +31,17 @@ fn find_zombies() {
// https://pubs.opengroup.org/onlinepubs/9699919799/utilities/ps.html
let ps_cmd_output = Command::new("ps").args(&["-A", "-o", "pid,ppid,args"]).output().unwrap();
let ps_output = String::from_utf8_lossy(&ps_cmd_output.stdout);
// On AIX, the PPID is not always present, such as when a process is blocked
// (marked as <exiting>), or if a process is idle. In these situations,
// the PPID column contains a "-" for the respective process.
// Filter out any lines that have a "-" as the PPID as the PPID is
// expected to be an integer.
let filtered_ps: Vec<_> = ps_output
.lines()
.filter(|line| line.split_whitespace().nth(1) != Some("-"))
.collect();

for (line_no, line) in ps_output.split('\n').enumerate() {
for (line_no, line) in filtered_ps.into_iter().enumerate() {
if 0 < line_no && 0 < line.len() &&
my_pid == line.split(' ').filter(|w| 0 < w.len()).nth(1)
.expect("1st column should be PPID")
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