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<spawn.h>(P)               POSIX Programmer's Manual              <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() 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_spaw-
       nattr_setflags(),       posix_spawnattr_setpgroup(),        posix_spaw-
       nattr_setschedparam(),   posix_spawnattr_setschedpolicy(),  posix_spaw-
       nattr_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 .

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

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