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() function:

       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_spawnattr_setflags(), posix_spawnattr_setpgroup(),
       posix_spawnattr_setschedparam(),                         posix_spawnattr_setschedpolicy(),
       posix_spawnattr_setsigmask(),      posix_spawn(),     posix_spawn_file_actions_addclose(),
       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 Technology  --  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 .