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

NAME
     posix_spawnattr_setsigmask posix_spawnattr_getsigmask -- set or get the
     spawn-sigmask attribute on a posix_spawnattr_t

SYNOPSIS
     #include <spawn.h>

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

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

DESCRIPTION
     The posix_spawnattr_setsigmask() function sets the sigmask on the
     attributes object referenced by attr.

     The posix_spawnattr_getsigmask() function retrieves the sigmask on the
     attributes object referenced by attr.

     The argument sigmask is the initial signal mask to be set for the new
     process on creation if the POSIX_SPAWN_SETSIGMASK 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_getsigmask() will modify the contents of the sigmask
     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_setsigmask() and posix_spawnattr_getsigmask() func-
     tion calls appeared in Version 3 of the Single UNIX Specification
     (``SUSv3'') [SPN].

Mac OS X                        August 22, 2007                       Mac OS X