POSIX_SPAWNATTR_GETSIGMASK(3P)                      POSIX Programmer's Manual                     POSIX_SPAWNATTR_GETSIGMASK(3P)



PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (con-
       sult the corresponding Linux manual page for details of Linux behavior), or the  interface  may  not  be  implemented  on
       Linux.

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 ref-
       erenced 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_get-
       flags(),   posix_spawnattr_getpgroup(),  posix_spawnattr_getschedparam(),  posix_spawnattr_getschedpolicy(),  posix_spaw-
       nattr_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, 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                                POSIX_SPAWNATTR_GETSIGMASK(3P)