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Pop all values from a process queue (proc_queue_clear)

Declaration​

values = proc_queue_clear(key)

Parameters​

  • key
    String.

Returns​

  • values
    Array (list). Returns a list containing all popped values. If the queue does not exist or is empty, returns an empty list.

Notes​

  • All process queues whose names start with "xxtouch." or "1ferver." are preserved.
  • Pop all values from the specified process queue and clear it.

Example​

local billnos = proc_queue_clear("billnos")
if #billnos ~= 0 then
    for i, billno in ipairs(billnos) do
        print(i, billno)
    end
else
    print("no bill")
end