| ps_ppid {ps} | R Documentation |
Parent pid or parent process of a process
Description
ps_ppid() returns the parent pid, ps_parent() returns a ps_handle
of the parent.
Usage
ps_ppid(p = ps_handle())
ps_parent(p = ps_handle())
Arguments
p |
Process handle. |
Details
On POSIX systems, if the parent process terminates, another process
(typically the pid 1 process) is marked as parent. ps_ppid() and
ps_parent() will return this process then.
Both ps_ppid() and ps_parent() work for zombie processes.
Value
ps_ppid() returns and integer scalar, the pid of the parent
of p. ps_parent() returns a ps_handle.
See Also
Other process handle functions:
ps_children(),
ps_cmdline(),
ps_connections(),
ps_cpu_times(),
ps_create_time(),
ps_cwd(),
ps_descent(),
ps_environ(),
ps_exe(),
ps_handle(),
ps_interrupt(),
ps_is_running(),
ps_kill(),
ps_memory_info(),
ps_name(),
ps_num_fds(),
ps_num_threads(),
ps_open_files(),
ps_pid(),
ps_resume(),
ps_send_signal(),
ps_shared_libs(),
ps_status(),
ps_suspend(),
ps_terminal(),
ps_terminate(),
ps_uids(),
ps_username()
Examples
p <- ps_handle()
p
ps_ppid(p)
ps_parent(p)