NAME

       posix_spawnattr_getsigmask,  posix_spawnattr_setsigmask  -  get  and set the spawn-sigmask
       attribute of a spawn attributes object (ADVANCED REALTIME)

SYNOPSIS

       #include <signal.h>
       #include <spawn.h>

       int posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict attr,
              sigset_t *restrict sigmask);
       int posix_spawnattr_setsigmask(posix_spawnattr_t *restrict attr,
              const sigset_t *restrict sigmask);

DESCRIPTION

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

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

       The spawn-sigmask attribute represents the signal mask in effect in the new process  image
       of a spawn operation (if POSIX_SPAWN_SETSIGMASK is set in the spawn-flags attribute).  The
       default value of this attribute is unspecified.

RETURN VALUE

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

       Upon successful completion, posix_spawnattr_setsigmask() 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_setsigmask() 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_getpgroup()
       ,      posix_spawnattr_getschedparam()      ,      posix_spawnattr_getschedpolicy()      ,
       posix_spawnattr_setsigdefault() , posix_spawnattr_setflags() , posix_spawnattr_setpgroup()
       , posix_spawnattr_setschedparam() , posix_spawnattr_setschedpolicy()  ,  posix_spawnp()  ,
       the Base Definitions volume of IEEE Std 1003.1-2001, <signal.h>, <spawn.h>

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 .