POSIX_SPAWNATTR_SETSI... BSD Library Functions Manual POSIX_SPAWNATTR_SETSI...

NAME
     posix_spawnattr_setsigdefault posix_spawnattr_getsigdefault -- set or get
     the spawn-sigdefault attribute on a posix_spawnattr_t

SYNOPSIS
     #include <spawn.h>

     int
     posix_spawnattr_setsigdefault(posix_spawnattr_t *restrict attr,
         const sigset_t *restrict sigdefault);

     int
     posix_spawnattr_getsigdefault(const posix_spawnattr_t *restrict attr,
         sigset_t *restrict sigdefault);

DESCRIPTION
     The posix_spawnattr_setsigdefault() function sets the sigdefault on the
     attributes object referenced by attr.

     The posix_spawnattr_getsigdefault() function retrieves the sigdefault on
     the attributes object referenced by attr.

     The argument sigdefault is the set of signals to be returned to default
     behaviour in the new process on creation if the POSIX_SPAWN_SETSIGDEF
     flag is set in the posix_spawnattr_t.  It's default value must be set via
     a call to posix_spawnattr_setflags(3) or the behaviour is undefined.

RETURN VALUES
     On success, these functions return 0; on failure they return an error
     number from <errno.h>.  Additionally, if successful,
     posix_spawnattr_getsigdefault() will modify the contents of the
     sigdefault parameter with the current attribute value.

ERRORS
     These functions may fail if:

     [EINVAL]           The value specified by attr is invalid.

     [EINVAL]           The value of attr is invalid.

SEE ALSO
     posix_spawn(2), posix_spawnp(2), posix_spawnattr_init(3),
     posix_spawnattr_destroy(3), posix_spawnattr_setflags(3)

STANDARDS
     Version 3 of the Single UNIX Specification (``SUSv3'') [SPN]

HISTORY
     The posix_spawnattr_setsigdefault() and posix_spawnattr_getsigdefault()
     function calls appeared in Version 3 of the Single UNIX Specification
     (``SUSv3'') [SPN].

Mac OS X                        August 22, 2007                       Mac OS X