diff options
Diffstat (limited to 'src/basic/process-util.c')
| -rw-r--r-- | src/basic/process-util.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/basic/process-util.c b/src/basic/process-util.c index 0b7e3010e0..a737686ab0 100644 --- a/src/basic/process-util.c +++ b/src/basic/process-util.c @@ -595,9 +595,12 @@ int getenv_for_pid(pid_t pid, const char *field, char **_value) { bool pid_is_unwaited(pid_t pid) { /* Checks whether a PID is still valid at all, including a zombie */ - if (pid <= 0) + if (pid < 0) return false; + if (pid <= 1) /* If we or PID 1 would be dead and have been waited for, this code would not be running */ + return true; + if (kill(pid, 0) >= 0) return true; @@ -609,9 +612,12 @@ bool pid_is_alive(pid_t pid) { /* Checks whether a PID is still valid and not a zombie */ - if (pid <= 0) + if (pid < 0) return false; + if (pid <= 1) /* If we or PID 1 would be a zombie, this code would not be running */ + return true; + r = get_process_state(pid); if (r == -ESRCH || r == 'Z') return false; |