/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

use crash_helper_common::{messages::ChildProcessRendezVousReply, GeckoChildId, Pid};
use nix::libc::{prctl, PR_SET_PTRACER};
use std::process;

use crate::CrashHelperClient;

impl CrashHelperClient {
    pub(crate) fn prepare_for_minidump(
        crash_helper_pid: Pid,
        id: GeckoChildId,
    ) -> ChildProcessRendezVousReply {
        // SAFETY: Calling `prctl()` is always safe, no pointers are involved.
        let res = unsafe { prctl(PR_SET_PTRACER, crash_helper_pid) };

        ChildProcessRendezVousReply::new(/* dumpable */ res >= 0, process::id() as Pid, id, [])
    }
}