posix_spawnattr_setsigmask

       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.
       posix_spawnattr_setflags() , posix_spawnattr_setpgroup() ,  posix_spaw-
       nattr_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 .



IEEE/The Open Group                  2003        POSIX_SPAWNATTR_GETSIGMASK(P)