trusty (3) posix_spawnattr_getpgroup.3posix.gz

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NAME

       posix_spawnattr_getpgroup,  posix_spawnattr_setpgroup - get and set the spawn-pgroup attribute of a spawn
       attributes object (ADVANCED REALTIME)

SYNOPSIS

       #include <spawn.h>

       int posix_spawnattr_getpgroup(const posix_spawnattr_t *restrict attr,
              pid_t *restrict pgroup);
       int posix_spawnattr_setpgroup(posix_spawnattr_t *attr, pid_t pgroup);

DESCRIPTION

       The posix_spawnattr_getpgroup() function shall obtain the value of the spawn-pgroup  attribute  from  the
       attributes object referenced by attr.

       The  posix_spawnattr_setpgroup()  function  shall  set  the  spawn-pgroup  attribute  in  an  initialized
       attributes object referenced by attr.

       The spawn-pgroup attribute represents the process group to be joined by the new process image in a  spawn
       operation  (if  POSIX_SPAWN_SETPGROUP  is  set  in the spawn-flags attribute).  The default value of this
       attribute shall be zero.

RETURN VALUE

       Upon successful completion, posix_spawnattr_getpgroup() shall return zero and  store  the  value  of  the
       spawn-pgroup  attribute  of  attr into the object referenced by the pgroup parameter; otherwise, an error
       number shall be returned to indicate the error.

       Upon successful completion, posix_spawnattr_setpgroup() shall return zero;  otherwise,  an  error  number
       shall be returned to indicate the error.

ERRORS

       These functions may fail if:

       EINVAL The value specified by attr is invalid.

       The posix_spawnattr_setpgroup() function may fail if:

       EINVAL The value of the attribute being set is not valid.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       These functions are part of the Spawn option and need not be provided on all implementations.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       posix_spawn()  ,  posix_spawnattr_destroy()  , posix_spawnattr_init() , posix_spawnattr_getsigdefault() ,
       posix_spawnattr_getflags()  ,  posix_spawnattr_getschedparam()   ,   posix_spawnattr_getschedpolicy()   ,
       posix_spawnattr_getsigmask()    ,    posix_spawnattr_setsigdefault()   ,   posix_spawnattr_setflags()   ,
       posix_spawnattr_setschedparam()  ,  posix_spawnattr_setschedpolicy()  ,  posix_spawnattr_setsigmask()   ,
       posix_spawnp() , the Base Definitions volume of IEEE Std 1003.1-2001, <spawn.h>

       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 .