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Kernel: Send SIGCHLD to the thread with same PID as my PPID

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Instead of delivering SIGCHLD to "any thread" in the process with PPID,
send it to the thread with the same TID as my PPID.
This commit is contained in:
Andreas Kling
2020-01-06 14:34:28 +01:00
parent cd42ccd686
commit a803312eb4
1 changed files with 3 additions and 4 deletions
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7
Kernel/Process.cpp
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@@ -2611,13 +2611,12 @@ void Process::finalize()
disown_all_shared_buffers();
{
InterruptDisabler disabler;
if (auto* parent_process = Process::from_pid(m_ppid)) {
// FIXME(Thread): What should we do here? Should we look at all threads' signal actions?
if (parent_process->thread_count() && parent_process->any_thread().m_signal_action_data[SIGCHLD].flags & SA_NOCLDWAIT) {
if (auto* parent_thread = Thread::from_tid(m_ppid)) {
if (parent_thread->m_signal_action_data[SIGCHLD].flags & SA_NOCLDWAIT) {
// NOTE: If the parent doesn't care about this process, let it go.
m_ppid = 0;
} else {
parent_process->send_signal(SIGCHLD, this);
parent_thread->send_signal(SIGCHLD, this);
}
}
}