example

SIG_COUNTER = 1 signal_map = { [SIG_COUNTER] = "counter", } signals = {}

function index_signals() for idx, signal in pairs(signal_map) do local sv_idx = model.sv["signal"]:find(signal) signals[idx] = sv_idx model:log_notice("signal indexed: [%d]%s -> sv[\"signal\"].scalar[%d]", idx, signal, sv_idx) end end

function set_initial_values() for idx, signal in pairs(signal_map) do local annotation = model.sv["signal"]:annotation(signal, "initial_value") local value = tonumber(annotation) if value ~= nil then model.sv["signal"].scalar[signals[idx]] = value end end end

function print_signal_values() for idx, signal in pairs(signal_map) do model:log_notice("signal value: [%d]%s = %f", idx, signal, model.sv["signal"].scalar[signals[idx]]) end end

function model_create() model:log_notice("model_create()") model:log_notice(" step_size: %f", model:step_size())

-- Debugging info.
model:log_debug(tostring(model))

-- Index signals used by this model.
index_signals()

-- Signal initial values.
set_initial_values()
print_signal_values()

-- Indicate success.
return 0

end

function model_step() model:log_notice("model_step() @ %f", model:model_time())

-- Increment the counter signal.
model.sv["signal"].scalar[signals[SIG_COUNTER]] = model.sv["signal"].scalar[signals[SIG_COUNTER]] + 1
print_signal_values()

-- Indicate success.
return 0

end

function model_destroy() model:log_notice("model_destroy()")

-- Indicate success.
return 0

end