PROLOG

       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of
       this interface may differ (consult 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 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_getsigdefault(),
       posix_spawnattr_getflags(), posix_spawnattr_getpgroup(), posix_spawnattr_getschedparam(),
       posix_spawnattr_getschedpolicy()

       The Base Definitions volume of POSIX.1‐2008, <signal.h>, <spawn.h>

COPYRIGHT

       Portions of this text are reprinted and  reproduced  in  electronic  form  from  IEEE  Std
       1003.1,  2013  Edition,  Standard  for Information Technology -- Portable Operating System
       Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013  by  the
       Institute  of  Electrical  and  Electronics  Engineers,  Inc and The Open Group.  (This is
       POSIX.1-2008 with the  2013  Technical  Corrigendum  1  applied.)  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.unix.org/online.html .

       Any  typographical  or  formatting errors that appear in this page are most likely to have
       been introduced during the conversion of the source files to man page  format.  To  report
       such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .