spawn.h

<spawn.h>(P)							 <spawn.h>(P)



NAME
       spawn.h - spawn (ADVANCED REALTIME)

SYNOPSIS
       #include <spawn.h>

DESCRIPTION
       The   <spawn.h>	 header	  shall	  define  the  posix_spawnattr_t  and
       posix_spawn_file_actions_t types used in performing spawn  operations.

       The  <spawn.h>  header  shall  define  the  flags that may be set in a
       posix_spawnattr_t object using  the  posix_spawnattr_setflags()	func-
       tion:


       POSIX_SPAWN_RESETIDS
       POSIX_SPAWN_SETPGROUP

       POSIX_SPAWN_SETSCHEDPARAM
       POSIX_SPAWN_SETSCHEDULER

       POSIX_SPAWN_SETSIGDEF
       POSIX_SPAWN_SETSIGMASK

       The  following  shall be declared as functions and may also be defined
       as macros. Function prototypes shall be provided.


	      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);

	      int   posix_spawnattr_getschedparam(const posix_spawnattr_t *restrict,
			struct sched_param *restrict);
	      int   posix_spawnattr_getschedpolicy(const posix_spawnattr_t *restrict,
			int *restrict);

	      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);



	      int   posix_spawnattr_setschedparam(posix_spawnattr_t *restrict,
			const struct sched_param *restrict);
	      int   posix_spawnattr_setschedpolicy(posix_spawnattr_t *, int);

	      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]);

       Inclusion of the <spawn.h> header may make visible symbols defined  in
       the <sched.h>, <signal.h>, and <sys/types.h> headers.

       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       <sched.h>  ,  <semaphore.h>  , <signal.h> , <sys/types.h> , the System
       Interfaces volume of IEEE Std 1003.1-2001,  posix_spawnattr_destroy(),
       posix_spawnattr_getsigdefault(),		  posix_spawnattr_getflags(),
       posix_spawnattr_getpgroup(),	     posix_spawnattr_getschedparam(),
       posix_spawnattr_getschedpolicy(),	posix_spawnattr_getsigmask(),
       posix_spawnattr_init(),	posix_spawnattr_setsigdefault(),  posix_spaw-
       nattr_setflags(),       posix_spawnattr_setpgroup(),	  posix_spaw-
       nattr_setschedparam(),  posix_spawnattr_setschedpolicy(),  posix_spaw-
       nattr_setsigmask(),    posix_spawn(),	posix_spawn_file_actions_add-
       close(),				  posix_spawn_file_actions_adddup2(),
       posix_spawn_file_actions_addopen(),
       posix_spawn_file_actions_destroy(),   posix_spawn_file_actions_init(),
       posix_spawnp()

COPYRIGHT
       Portions	 of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information  Technol-
       ogy  --	Portable  Operating  System Interface (POSIX), The Open Group
       Base Specifications Issue 6, Copyright (C) 2001-2003 by the  Institute
       of  Electrical  and  Electronics Engineers, Inc and The Open Group. In
       the event of any discrepancy between this  version  and	the  original
       IEEE and The Open Group Standard, the original IEEE and The Open Group
       Standard is  the	 referee  document.  The  original  Standard  can  be
       obtained online at http://www.opengroup.org/unix/online.html .



POSIX				     2003			 <spawn.h>(P)