source: vendor/glibc-include/current/spawn.h@ 2723

Last change on this file since 2723 was 1024, checked in by bird, 22 years ago

Initial revision
  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 6.4 KB
Line 
1/* Definitions for POSIX spawn interface.
2 Copyright (C) 2000 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, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
19
20#ifndef _SPAWN_H
21#define _SPAWN_H 1
22
23#include <features.h>
24#include <sched.h>
25#include <signal.h>
26#include <sys/types.h>
27
28
29/* Data structure to contain attributes for thread creation. */
30typedef struct
31{
32 short int __flags;
33 pid_t __pgrp;
34 sigset_t __sd;
35 sigset_t __ss;
36 struct sched_param __sp;
37 int __policy;
38 int __pad[16];
39} posix_spawnattr_t;
40
41
42/* Data structure to contain information about the actions to be
43 performed in the new process with respect to file descriptors. */
44typedef struct
45{
46 int __allocated;
47 int __used;
48 struct __spawn_action *__actions;
49 int __pad[16];
50} posix_spawn_file_actions_t;
51
52
53/* Flags to be set in the `posix_spawnattr_t'. */
54#define POSIX_SPAWN_RESETIDS 0x01
55#define POSIX_SPAWN_SETPGROUP 0x02
56#define POSIX_SPAWN_SETSIGDEF 0x04
57#define POSIX_SPAWN_SETSIGMASK 0x08
58#define POSIX_SPAWN_SETSCHEDPARAM 0x10
59#define POSIX_SPAWN_SETSCHEDULER 0x20
60
61
62__BEGIN_DECLS
63
64/* Spawn a new process executing PATH with the attributes describes in *ATTRP.
65 Before running the process perform the actions described in FILE-ACTIONS. */
66extern int posix_spawn (pid_t *__restrict __pid,
67 __const char *__restrict __path,
68 __const posix_spawn_file_actions_t *__restrict
69 __file_actions,
70 __const posix_spawnattr_t *__restrict __attrp,
71 char *__const argv[__restrict_arr],
72 char *__const envp[__restrict_arr]) __THROW;
73
74/* Similar to `posix_spawn' but search for FILE in the PATH. */
75extern int posix_spawnp (pid_t *__pid, __const char *__file,
76 __const posix_spawn_file_actions_t *__file_actions,
77 __const posix_spawnattr_t *__attrp,
78 char *__const argv[], char *__const envp[]) __THROW;
79
80
81/* Initialize data structure with attributes for `spawn' to default values. */
82extern int posix_spawnattr_init (posix_spawnattr_t *__attr) __THROW;
83
84/* Free resources associated with ATTR. */
85extern int posix_spawnattr_destroy (posix_spawnattr_t *__attr) __THROW;
86
87/* Store signal mask for signals with default handling from ATTR in
88 SIGDEFAULT. */
89extern int posix_spawnattr_getsigdefault (__const posix_spawnattr_t *
90 __restrict __attr,
91 sigset_t *__restrict __sigdefault)
92 __THROW;
93
94/* Set signal mask for signals with default handling in ATTR to SIGDEFAULT. */
95extern int posix_spawnattr_setsigdefault (posix_spawnattr_t *__restrict __attr,
96 __const sigset_t *__restrict
97 __sigdefault)
98 __THROW;
99
100/* Store signal mask for the new process from ATTR in SIGMASK. */
101extern int posix_spawnattr_getsigmask (__const posix_spawnattr_t *__restrict
102 __attr,
103 sigset_t *__restrict __sigmask) __THROW;
104
105/* Set signal mask for the new process in ATTR to SIGMASK. */
106extern int posix_spawnattr_setsigmask (posix_spawnattr_t *__restrict __attr,
107 __const sigset_t *__restrict __sigmask)
108 __THROW;
109
110/* Get flag word from the attribute structure. */
111extern int posix_spawnattr_getflags (__const posix_spawnattr_t *__restrict
112 __attr,
113 short int *__restrict __flags) __THROW;
114
115/* Store flags in the attribute structure. */
116extern int posix_spawnattr_setflags (posix_spawnattr_t *_attr,
117 short int __flags) __THROW;
118
119/* Get process group ID from the attribute structure. */
120extern int posix_spawnattr_getpgroup (__const posix_spawnattr_t *__restrict
121 __attr, pid_t *__restrict __pgroup)
122 __THROW;
123
124/* Store process group ID in the attribute structure. */
125extern int posix_spawnattr_setpgroup (posix_spawnattr_t *__attr,
126 pid_t __pgroup) __THROW;
127
128/* Get scheduling policy from the attribute structure. */
129extern int posix_spawnattr_getschedpolicy (__const posix_spawnattr_t *
130 __restrict __attr,
131 int *__restrict __schedpolicy)
132 __THROW;
133
134/* Store scheduling policy in the attribute structure. */
135extern int posix_spawnattr_setschedpolicy (posix_spawnattr_t *__attr,
136 int __schedpolicy) __THROW;
137
138/* Get scheduling parameters from the attribute structure. */
139extern int posix_spawnattr_getschedparam (__const posix_spawnattr_t *
140 __restrict __attr,
141 struct sched_param *__restrict
142 __schedparam) __THROW;
143
144/* Store scheduling parameters in the attribute structure. */
145extern int posix_spawnattr_setschedparam (posix_spawnattr_t *__restrict __attr,
146 const struct sched_param *
147 __restrict __schedparam) __THROW;
148
149
150/* Initialize data structure for file attribute for `spawn' call. */
151extern int posix_spawn_file_actions_init (posix_spawn_file_actions_t *
152 __file_actions) __THROW;
153
154/* Free resources associated with FILE-ACTIONS. */
155extern int posix_spawn_file_actions_destroy (posix_spawn_file_actions_t *
156 __file_actions) __THROW;
157
158/* Add an action to FILE-ACTIONS which tells the implementation to call
159 `open' for the given file during the `spawn' call. */
160extern int posix_spawn_file_actions_addopen (posix_spawn_file_actions_t *
161 __restrict __file_actions,
162 int __fd,
163 __const char *__restrict __path,
164 int __oflag, mode_t __mode)
165 __THROW;
166
167/* Add an action to FILE-ACTIONS which tells the implementation to call
168 `close' for the given file descriptor during the `spawn' call. */
169extern int posix_spawn_file_actions_addclose (posix_spawn_file_actions_t *
170 __file_actions, int __fd)
171 __THROW;
172
173/* Add an action to FILE-ACTIONS which tells the implementation to call
174 `dup2' for the given file descriptors during the `spawn' call. */
175extern int posix_spawn_file_actions_adddup2 (posix_spawn_file_actions_t *
176 __file_actions,
177 int __fd, int __newfd) __THROW;
178
179__END_DECLS
180
181#endif /* spawn.h */
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