1spawn.h(0P) POSIX Programmer's Manual spawn.h(0P)
2
6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
10
12 spawn.h — spawn (ADVANCED REALTIME)
13
15 #include <spawn.h>
16
18 The <spawn.h> header shall define the posix_spawnattr_t and
19 posix_spawn_file_actions_t types used in performing spawn operations.
20 The <spawn.h> header shall define the mode_t and pid_t types as
22 described in <sys/types.h>.
23 The <spawn.h> header shall define the sigset_t type as described in
25 <signal.h>.
26 The tag sched_param shall be declared as naming an incomplete structure
28 type, the contents of which are described in the <sched.h> header.
29 The <spawn.h> header shall define the following symbolic constants for
31 use as the flags that may be set in a posix_spawnattr_t object using
32 the posix_spawnattr_setflags() function:
33 POSIX_SPAWN_RESETIDS
35 POSIX_SPAWN_SETPGROUP
36 POSIX_SPAWN_SETSCHEDPARAM
37 POSIX_SPAWN_SETSCHEDULER
38 POSIX_SPAWN_SETSIGDEF
39 POSIX_SPAWN_SETSIGMASK
40 The following shall be declared as functions and may also be defined as
42 macros. Function prototypes shall be provided.
43 int posix_spawn(pid_t *restrict, const char *restrict,
46 const posix_spawn_file_actions_t *,
47 const posix_spawnattr_t *restrict, char *const [restrict],
48 char *const [restrict]);
49 int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *,
50 int);
51 int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *,
52 int, int);
53 int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t *restrict,
54 int, const char *restrict, int, mode_t);
55 int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *);
56 int posix_spawn_file_actions_init(posix_spawn_file_actions_t *);
57 int posix_spawnattr_destroy(posix_spawnattr_t *);
58 int posix_spawnattr_getflags(const posix_spawnattr_t *restrict,
59 short *restrict);
60 int posix_spawnattr_getpgroup(const posix_spawnattr_t *restrict,
61 pid_t *restrict);
62 int posix_spawnattr_getschedparam(const posix_spawnattr_t *restrict,
63 struct sched_param *restrict);
64 int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *restrict,
65 int *restrict);
66 int posix_spawnattr_getsigdefault(const posix_spawnattr_t *restrict,
67 sigset_t *restrict);
68 int posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict,
69 sigset_t *restrict);
70 int posix_spawnattr_init(posix_spawnattr_t *);
71 int posix_spawnattr_setflags(posix_spawnattr_t *, short);
72 int posix_spawnattr_setpgroup(posix_spawnattr_t *, pid_t);
73 int posix_spawnattr_setschedparam(posix_spawnattr_t *restrict,
74 const struct sched_param *restrict);
75 int posix_spawnattr_setschedpolicy(posix_spawnattr_t *, int);
76 int posix_spawnattr_setsigdefault(posix_spawnattr_t *restrict,
77 const sigset_t *restrict);
78 int posix_spawnattr_setsigmask(posix_spawnattr_t *restrict,
79 const sigset_t *restrict);
80 int posix_spawnp(pid_t *restrict, const char *restrict,
81 const posix_spawn_file_actions_t *,
82 const posix_spawnattr_t *restrict,
83 char *const [restrict], char *const [restrict]);
84 Inclusion of the <spawn.h> header may make visible symbols defined in
86 the <sched.h> and <signal.h> headers.
87 The following sections are informative.
89
91 None.
92
94 None.
95
97 None.
98
100 <sched.h>, <semaphore.h>, <signal.h>, <sys_types.h>
101 The System Interfaces volume of POSIX.1‐2017, posix_spawn(),
103 posix_spawn_file_actions_addclose(),
104 posix_spawn_file_actions_adddup2(), posix_spawn_file_actions_destroy(),
105 posix_spawnattr_destroy(), posix_spawnattr_getflags(), posix_spaw‐
106 nattr_getpgroup(), posix_spawnattr_getschedparam(), posix_spaw‐
107 nattr_getschedpolicy(), posix_spawnattr_getsigdefault(), posix_spaw‐
108 nattr_getsigmask()
109
111 Portions of this text are reprinted and reproduced in electronic form
112 from IEEE Std 1003.1-2017, Standard for Information Technology -- Por‐
113 table Operating System Interface (POSIX), The Open Group Base Specifi‐
114 cations Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of
115 Electrical and Electronics Engineers, Inc and The Open Group. In the
116 event of any discrepancy between this version and the original IEEE and
117 The Open Group Standard, the original IEEE and The Open Group Standard
118 is the referee document. The original Standard can be obtained online
119 at http://www.opengroup.org/unix/online.html .
120 Any typographical or formatting errors that appear in this page are
122 most likely to have been introduced during the conversion of the source
123 files to man page format. To report such errors, see https://www.ker‐
124 nel.org/doc/man-pages/reporting_bugs.html .
125IEEE/The Open Group 2017 spawn.h(0P)