xref: /freebsd/include/spawn.h (revision fe75646a0234a261c0013bf1840fdac4acaf0cec)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef _SPAWN_H_
30 #define _SPAWN_H_
31 
32 #include <sys/cdefs.h>
33 #include <sys/_types.h>
34 #include <sys/_sigset.h>
35 
36 #ifndef _MODE_T_DECLARED
37 typedef	__mode_t	mode_t;
38 #define	_MODE_T_DECLARED
39 #endif
40 
41 #ifndef _PID_T_DECLARED
42 typedef	__pid_t		pid_t;
43 #define	_PID_T_DECLARED
44 #endif
45 
46 #ifndef _SIGSET_T_DECLARED
47 #define	_SIGSET_T_DECLARED
48 typedef	__sigset_t	sigset_t;
49 #endif
50 
51 struct sched_param;
52 
53 typedef struct __posix_spawnattr		*posix_spawnattr_t;
54 typedef struct __posix_spawn_file_actions	*posix_spawn_file_actions_t;
55 
56 #define POSIX_SPAWN_RESETIDS		0x01
57 #define POSIX_SPAWN_SETPGROUP		0x02
58 #define POSIX_SPAWN_SETSCHEDPARAM	0x04
59 #define POSIX_SPAWN_SETSCHEDULER	0x08
60 #define POSIX_SPAWN_SETSIGDEF		0x10
61 #define POSIX_SPAWN_SETSIGMASK		0x20
62 
63 __BEGIN_DECLS
64 /*
65  * Spawn routines
66  *
67  * XXX both arrays should be __restrict, but this does not work when GCC
68  * is invoked with -std=c99.
69  */
70 int posix_spawn(pid_t * __restrict, const char * __restrict,
71     const posix_spawn_file_actions_t *, const posix_spawnattr_t * __restrict,
72     char * const [], char * const []);
73 int posix_spawnp(pid_t * __restrict, const char * __restrict,
74     const posix_spawn_file_actions_t *, const posix_spawnattr_t * __restrict,
75     char * const [], char * const []);
76 
77 /*
78  * File descriptor actions
79  */
80 int posix_spawn_file_actions_init(posix_spawn_file_actions_t *);
81 int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *);
82 
83 int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t * __restrict,
84     int, const char * __restrict, int, mode_t);
85 int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *, int, int);
86 int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *, int);
87 
88 #if __BSD_VISIBLE
89 int posix_spawn_file_actions_addchdir_np(posix_spawn_file_actions_t *
90     __restrict, const char * __restrict);
91 int posix_spawn_file_actions_addfchdir_np(posix_spawn_file_actions_t *,
92     int);
93 int posix_spawn_file_actions_addclosefrom_np(posix_spawn_file_actions_t *,
94     int);
95 #endif
96 
97 /*
98  * Spawn attributes
99  */
100 int posix_spawnattr_init(posix_spawnattr_t *);
101 int posix_spawnattr_destroy(posix_spawnattr_t *);
102 
103 int posix_spawnattr_getflags(const posix_spawnattr_t * __restrict,
104     short * __restrict);
105 int posix_spawnattr_getpgroup(const posix_spawnattr_t * __restrict,
106     pid_t * __restrict);
107 int posix_spawnattr_getschedparam(const posix_spawnattr_t * __restrict,
108     struct sched_param * __restrict);
109 int posix_spawnattr_getschedpolicy(const posix_spawnattr_t * __restrict,
110     int * __restrict);
111 int posix_spawnattr_getsigdefault(const posix_spawnattr_t * __restrict,
112     sigset_t * __restrict);
113 int posix_spawnattr_getsigmask(const posix_spawnattr_t * __restrict,
114     sigset_t * __restrict sigmask);
115 
116 int posix_spawnattr_setflags(posix_spawnattr_t *, short);
117 int posix_spawnattr_setpgroup(posix_spawnattr_t *, pid_t);
118 int posix_spawnattr_setschedparam(posix_spawnattr_t * __restrict,
119     const struct sched_param * __restrict);
120 int posix_spawnattr_setschedpolicy(posix_spawnattr_t *, int);
121 int posix_spawnattr_setsigdefault(posix_spawnattr_t * __restrict,
122     const sigset_t * __restrict);
123 int posix_spawnattr_setsigmask(posix_spawnattr_t * __restrict,
124     const sigset_t * __restrict);
125 __END_DECLS
126 
127 #endif /* !_SPAWN_H_ */
128