wait: Support ptrace events for Linux #438
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chaosagent
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This works on newer versions of Rust; not really sure how to cleanly do a cfg on a block in previous versions. |
| @@ -184,6 +191,12 @@ fn decode(pid : pid_t, status: i32) -> WaitStatus { | |||
| } else if status::signaled(status) { | |||
| WaitStatus::Signaled(pid, status::term_signal(status), status::dumped_core(status)) | |||
| } else if status::stopped(status) { | |||
| #[cfg(any(target_os = "linux", target_os = "android"))] { | |||
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I didn't know cfg on blocks was possible, even if nightly only.
To do this on stable, I think your best approach is going to be adding an inner function like this:
// ...
} else if status::stopped(status) {
cfg_if! {
if #[cfg(any(target_os = "linux", target_os = "android"))] {
fn decode_stopped(status) -> WaitStatus {
// Linux code
}
} else {
fn decode_stopped(status) -> WaitStatus {
// Other platform code
}
}
}
decode_stopped(status)
} else {
// ...
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Oh yeah, should have pointed out where that comes from. We already have it in nix, so it's not a risk to use it.
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Thanks @chaosagent! I'm going to try and get someone who's used these APIs to see if they make sense. Should be able to merge soon though. :-) |
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I've found this implementation of this, which works pretty much the same, if that's of any help. Edit: screwed up markdown |
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On a quick glance this seems OK to me. I can't remember if it's possible that non-signal event still has ptrace information. Anyway, that's better than my old solution! |
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@chaosagent I'm really sorry for the delay on this PR. I'm going to assume that nothing has changed since November in terms of correctness. @homu r+ |
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📌 Commit e6bfbbb has been approved by |
wait: Support ptrace events for Linux Adds new WaitStatus value `PtraceEvent`. Implementation of #273 that only affects Linux/Android.
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☀️ Test successful - status |
changelog: Add note for ptrace events (#438)
Adds new WaitStatus value
PtraceEvent. Implementation of #273 that only affects Linux/Android.