<spawn.h>(0P)                                       POSIX Programmer's Manual                                      <spawn.h>(0P)



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_set-
       flags() 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> head-
       ers.

       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_spaw-
       nattr_destroy(),  posix_spawnattr_getsigdefault(),  posix_spawnattr_getflags(),  posix_spawnattr_getpgroup(), posix_spaw-
       nattr_getschedparam(),    posix_spawnattr_getschedpolicy(),     posix_spawnattr_getsigmask(),     posix_spawnattr_init(),
       posix_spawnattr_setsigdefault(),   posix_spawnattr_setflags(),   posix_spawnattr_setpgroup(),   posix_spawnattr_setsched-
       param(),  posix_spawnattr_setschedpolicy(),  posix_spawnattr_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  Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copy-
       right (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.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                                 <spawn.h>(0P)