Function

GLib-2.0GLibatomic_int_exchangeSince 2.74

  • Sets the atomic to newval and returns the old value from atomic.

    This exchange is done atomically.

    Think of this operation as an atomic version of { tmp = *atomic; *atomic = val; return tmp; }.

    This call acts as a full compiler and hardware memory barrier.

    Parameters

    • atomic: any

      a pointer to a gint or guint

    • newval: number

      the value to replace with

    Returns number

    the value of atomic before the exchange, signed

    2.74