pub fn push_lua_wake_key(key: &[u8])Expand description
Lua’s redis.call dispatch closure calls this after every
wake-triggering write (LPUSH / RPUSH / XADD / ZADD / ZINCRBY).
The runtime drains via [drain_lua_wake_buffer] after the outer
EVAL dispatch returns and fires wake_key for each.
Cheap: one thread-local lookup + one Vec::push per call.