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patch 9.0.1377: job_status() may return "dead" if the process parent changed

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Problem:    job_status() may return "dead" if the process parent changed.
Solution:   Call mch_process_running() to check if the job is still alive.
This commit is contained in:
Bram Moolenaar
2023-03-04 13:23:26 +00:00
parent 1c73b65229
commit 5c6a3c9bad
2 changed files with 10 additions and 1 deletions
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9
src/os_unix.c
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@@ -5863,10 +5863,17 @@ mch_job_status(job_T *job)
# endif
if (wait_pid == -1)
{
int waitpid_errno = errno;
if (waitpid_errno == ECHILD && mch_process_running(job->jv_pid))
// The process is alive, but it was probably reparented (for
// example by ptrace called by a debugger like lldb or gdb).
// Note: This assumes that process IDs are not reused.
return "run";
// process must have exited
if (job->jv_status < JOB_ENDED)
ch_log(job->jv_channel, "Job no longer exists: %s",
strerror(errno));
strerror(waitpid_errno));
goto return_dead;
}
if (wait_pid == 0)