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<title>&lt;spawn.h&gt;</title>
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<basefont size="3"> <a name="&lt;spawn.h&gt;"></a> <a name="tag_13_44"></a><!-- &lt;spawn.h&gt; -->
<!--header start-->
<center><font size="2">The Open Group Base Specifications Issue 6<br>
IEEE Std 1003.1-2001<br>
Copyright &copy; 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
<!--header end-->
<hr size="2" noshade>
<h4><a name="tag_13_44_01"></a>NAME</h4>
<blockquote>spawn.h - spawn (<b>ADVANCED REALTIME</b>)</blockquote>
<h4><a name="tag_13_44_02"></a>SYNOPSIS</h4>
<blockquote class="synopsis">
<div class="box"><tt><sup>[<a href="javascript:open_code('SPN')">SPN</a>]</sup> <img src="../images/opt-start.gif" alt=
"[Option Start]" border="0"> #include &lt;spawn.h&gt; <img src="../images/opt-end.gif" alt="[Option End]" border="0"></tt></div>
</blockquote>
<h4><a name="tag_13_44_03"></a>DESCRIPTION</h4>
<blockquote>
<p>The <i>&lt;spawn.h&gt;</i> header shall define the <b>posix_spawnattr_t</b> and <b>posix_spawn_file_actions_t</b> types used in
performing spawn operations.</p>
<p>The <i>&lt;spawn.h&gt;</i> header shall define the flags that may be set in a <b>posix_spawnattr_t</b> object using the <a href=
"../functions/posix_spawnattr_setflags.html"><i>posix_spawnattr_setflags</i>()</a> function:</p>
<p><br>
POSIX_SPAWN_RESETIDS<br>
POSIX_SPAWN_SETPGROUP<br>
<sup>[<a href="javascript:open_code('PS')">PS</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"><br>
POSIX_SPAWN_SETSCHEDPARAM<br>
POSIX_SPAWN_SETSCHEDULER<br>
<img src="../images/opt-end.gif" alt="[Option End]" border="0"><br>
POSIX_SPAWN_SETSIGDEF<br>
POSIX_SPAWN_SETSIGMASK<br>
</p>
<p>The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.</p>
<pre>
<tt>int posix_spawn(pid_t *restrict, const char *restrict,
const posix_spawn_file_actions_t *,
const posix_spawnattr_t *restrict, char *const [restrict],
char *const [restrict]);
int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *,
int);
int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *,
int, int);
int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t *restrict,
int, const char *restrict, int, mode_t);
int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *);
int posix_spawn_file_actions_init(posix_spawn_file_actions_t *);
int posix_spawnattr_destroy(posix_spawnattr_t *);
int posix_spawnattr_getsigdefault(const posix_spawnattr_t *restrict,
sigset_t *restrict);
int posix_spawnattr_getflags(const posix_spawnattr_t *restrict,
short *restrict);
int posix_spawnattr_getpgroup(const posix_spawnattr_t *restrict,
pid_t *restrict);
<sup>[<a href="javascript:open_code('PS')">PS</a>]</sup><img src="../images/opt-start.gif" alt="[Option Start]" border="0">
int posix_spawnattr_getschedparam(const posix_spawnattr_t *restrict,
struct sched_param *restrict);
int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *restrict,
int *restrict);
<img src="../images/opt-end.gif" alt="[Option End]" border="0">
int posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict,
sigset_t *restrict);
int posix_spawnattr_init(posix_spawnattr_t *);
int posix_spawnattr_setsigdefault(posix_spawnattr_t *restrict,
const sigset_t *restrict);
int posix_spawnattr_setflags(posix_spawnattr_t *, short);
int posix_spawnattr_setpgroup(posix_spawnattr_t *, pid_t);
<br>
<sup>[<a href="javascript:open_code('PS')">PS</a>]</sup><img src="../images/opt-start.gif" alt="[Option Start]" border="0">
int posix_spawnattr_setschedparam(posix_spawnattr_t *restrict,
const struct sched_param *restrict);
int posix_spawnattr_setschedpolicy(posix_spawnattr_t *, int);
<img src="../images/opt-end.gif" alt="[Option End]" border="0">
int posix_spawnattr_setsigmask(posix_spawnattr_t *restrict,
const sigset_t *restrict);
int posix_spawnp(pid_t *restrict, const char *restrict,
const posix_spawn_file_actions_t *,
const posix_spawnattr_t *restrict,
char *const [restrict], char *const [restrict]);
</tt>
</pre>
<p>Inclusion of the <i>&lt;spawn.h&gt;</i> header may make visible symbols defined in the <a href=
"../basedefs/sched.h.html"><i>&lt;sched.h&gt;</i></a>, <a href="../basedefs/signal.h.html"><i>&lt;signal.h&gt;</i></a>, and <a
href="../basedefs/sys/types.h.html"><i>&lt;sys/types.h&gt;</i></a> headers.</p>
</blockquote>
<hr>
<div class="box"><em>The following sections are informative.</em></div>
<h4><a name="tag_13_44_04"></a>APPLICATION USAGE</h4>
<blockquote>
<p>None.</p>
</blockquote>
<h4><a name="tag_13_44_05"></a>RATIONALE</h4>
<blockquote>
<p>None.</p>
</blockquote>
<h4><a name="tag_13_44_06"></a>FUTURE DIRECTIONS</h4>
<blockquote>
<p>None.</p>
</blockquote>
<h4><a name="tag_13_44_07"></a>SEE ALSO</h4>
<blockquote>
<p><a href="sched.h.html"><i>&lt;sched.h&gt;</i></a> , <a href="semaphore.h.html"><i>&lt;semaphore.h&gt;</i></a> , <a href=
"signal.h.html"><i>&lt;signal.h&gt;</i></a> , <a href="sys/types.h.html"><i>&lt;sys/types.h&gt;</i></a> , the System Interfaces
volume of IEEE&nbsp;Std&nbsp;1003.1-2001, <a href="../functions/posix_spawnattr_destroy.html"><i>posix_spawnattr_destroy</i>()</a>,
<a href="../functions/posix_spawnattr_getsigdefault.html"><i>posix_spawnattr_getsigdefault</i>()</a>, <a href=
"../functions/posix_spawnattr_getflags.html"><i>posix_spawnattr_getflags</i>()</a>, <a href=
"../functions/posix_spawnattr_getpgroup.html"><i>posix_spawnattr_getpgroup</i>()</a>, <a href=
"../functions/posix_spawnattr_getschedparam.html"><i>posix_spawnattr_getschedparam</i>()</a>, <a href=
"../functions/posix_spawnattr_getschedpolicy.html"><i>posix_spawnattr_getschedpolicy</i>()</a>, <a href=
"../functions/posix_spawnattr_getsigmask.html"><i>posix_spawnattr_getsigmask</i>()</a>, <a href=
"../functions/posix_spawnattr_init.html"><i>posix_spawnattr_init</i>()</a>, <a href=
"../functions/posix_spawnattr_setsigdefault.html"><i>posix_spawnattr_setsigdefault</i>()</a>, <a href=
"../functions/posix_spawnattr_setflags.html"><i>posix_spawnattr_setflags</i>()</a>, <a href=
"../functions/posix_spawnattr_setpgroup.html"><i>posix_spawnattr_setpgroup</i>()</a>, <a href=
"../functions/posix_spawnattr_setschedparam.html"><i>posix_spawnattr_setschedparam</i>()</a>, <a href=
"../functions/posix_spawnattr_setschedpolicy.html"><i>posix_spawnattr_setschedpolicy</i>()</a>, <a href=
"../functions/posix_spawnattr_setsigmask.html"><i>posix_spawnattr_setsigmask</i>()</a>, <a href=
"../functions/posix_spawn.html"><i>posix_spawn</i>()</a>, <a href=
"../functions/posix_spawn_file_actions_addclose.html"><i>posix_spawn_file_actions_addclose</i>()</a>, <a href=
"../functions/posix_spawn_file_actions_adddup2.html"><i>posix_spawn_file_actions_adddup2</i>()</a>, <a href=
"../functions/posix_spawn_file_actions_addopen.html"><i>posix_spawn_file_actions_addopen</i>()</a>, <a href=
"../functions/posix_spawn_file_actions_destroy.html"><i>posix_spawn_file_actions_destroy</i>()</a>, <a href=
"../functions/posix_spawn_file_actions_init.html"><i>posix_spawn_file_actions_init</i>()</a>, <a href=
"../functions/posix_spawnp.html"><i>posix_spawnp</i>()</a></p>
</blockquote>
<h4><a name="tag_13_44_08"></a>CHANGE HISTORY</h4>
<blockquote>
<p>First released in Issue 6. Included for alignment with IEEE&nbsp;Std&nbsp;1003.1d-1999.</p>
<p>The <b>restrict</b> keyword is added to the prototypes for <a href="../functions/posix_spawn.html"><i>posix_spawn</i>()</a>, <a
href="../functions/posix_spawn_file_actions_addopen.html"><i>posix_spawn_file_actions_addopen</i>()</a>, <a href=
"../functions/posix_spawnattr_getsigdefault.html"><i>posix_spawnattr_getsigdefault</i>()</a>, <a href=
"../functions/posix_spawnattr_getflags.html"><i>posix_spawnattr_getflags</i>()</a>, <a href=
"../functions/posix_spawnattr_getpgroup.html"><i>posix_spawnattr_getpgroup</i>()</a>, <a href=
"../functions/posix_spawnattr_getschedparam.html"><i>posix_spawnattr_getschedparam</i>()</a>, <a href=
"../functions/posix_spawnattr_getschedpolicy.html"><i>posix_spawnattr_getschedpolicy</i>()</a>, <a href=
"../functions/posix_spawnattr_getsigmask.html"><i>posix_spawnattr_getsigmask</i>()</a>, <a href=
"../functions/posix_spawnattr_setsigdefault.html"><i>posix_spawnattr_setsigdefault</i>()</a>, <a href=
"../functions/posix_spawnattr_setschedparam.html"><i>posix_spawnattr_setschedparam</i>()</a>, <a href=
"../functions/posix_spawnattr_setsigmask.html"><i>posix_spawnattr_setsigmask</i>()</a>, and <a href=
"../functions/posix_spawnp.html"><i>posix_spawnp</i>()</a>.</p>
</blockquote>
<div class="box"><em>End of informative text.</em></div>
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