1/* Wait for process state.
2 Copyright (C) 2020-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#ifndef SUPPORT_PROCESS_STATE_H
20#define SUPPORT_PROCESS_STATE_H
21
22#include <sys/types.h>
23
24enum support_process_state
25{
26 support_process_state_running = 0x01, /* R (running). */
27 support_process_state_sleeping = 0x02, /* S (sleeping). */
28 support_process_state_disk_sleep = 0x04, /* D (disk sleep). */
29 support_process_state_stopped = 0x08, /* T (stopped). */
30 support_process_state_tracing_stop = 0x10, /* t (tracing stop). */
31 support_process_state_dead = 0x20, /* X (dead). */
32 support_process_state_zombie = 0x40, /* Z (zombie). */
33 support_process_state_parked = 0x80, /* P (parked). */
34};
35
36/* Wait for process PID to reach state STATE. It can be a combination of
37 multiple possible states ('process_state_running | process_state_sleeping')
38 where the function return when any of these state are observed.
39 For an invalid state not represented by SUPPORT_PROCESS_STATE, it fallbacks
40 to a 2 second sleep. */
41void support_process_state_wait (pid_t pid, enum support_process_state state);
42
43#endif
44