Set a callback that will be invoked to generate transaction IDs. By
default, we pick transaction IDs based on the current clock time, which
is bad for security.
@param fn the new callback, or NULL to use the default.
NOTE: This function has no effect in Libevent 2.0.4-alpha and later,
since Libevent now provides its own secure RNG.
Set a callback that will be invoked to generate transaction IDs. By default, we pick transaction IDs based on the current clock time, which is bad for security.
@param fn the new callback, or NULL to use the default.
NOTE: This function has no effect in Libevent 2.0.4-alpha and later, since Libevent now provides its own secure RNG.