1/* Definitions of flag bits for `waitpid' et al. 
2 Copyright (C) 1992-2020 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#if !defined _SYS_WAIT_H && !defined _STDLIB_H 
20# error "Never include <bits/waitflags.h> directly; use <sys/wait.h> instead." 
21#endif 
22 
23 
24/* Bits in the third argument to `waitpid'. */ 
25#define WNOHANG 1 /* Don't block waiting. */ 
26#define WUNTRACED 2 /* Report status of stopped children. */ 
27 
28/* Bits in the fourth argument to `waitid'. */ 
29#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 
30# define WSTOPPED 2 /* Report stopped child (same as WUNTRACED). */ 
31# define WEXITED 4 /* Report dead child. */ 
32# define WCONTINUED 8 /* Report continued child. */ 
33# define WNOWAIT 0x01000000 /* Don't reap, just poll status. */ 
34#endif 
35 
36#define __WNOTHREAD 0x20000000 /* Don't wait on children of other threads 
37 in this group */ 
38#define __WALL 0x40000000 /* Wait for any child. */ 
39#define __WCLONE 0x80000000 /* Wait for cloned process. */ 
40 
41/* The following values are used by the `waitid' function. */ 
42#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 
43# ifndef __ENUM_IDTYPE_T 
44# define __ENUM_IDTYPE_T 1 
45 
46/* The Linux kernel defines these bare, rather than an enum, 
47 which causes a conflict if the include order is reversed. */ 
48# undef P_ALL 
49# undef P_PID 
50# undef P_PGID 
51 
52typedef enum 
53{ 
54 P_ALL, /* Wait for any child. */ 
55 P_PID, /* Wait for specified process. */ 
56 P_PGID /* Wait for members of process group. */ 
57} idtype_t; 
58# endif 
59#endif 
60