[ZeroBrane Studio] Debugging 2
- From: "Clive Monk" <clive@xxxxxxxxxxxxxxxxxxxx>
- To: <zerobrane@xxxxxxxxxxxxx>
- Date: Mon, 15 Jul 2013 20:23:01 +0100
Hi Paul,
This is really a Lua question but my debugging session is failing with the
output below.
I am guessing but it could be to do with a common scenario in Vera. The Luup
library provided by MCV includes the function call_delay. It is used to
schedule an action in the future e.g switch on bedroom light at 22:30.
call_delay takes a function name to call, the delay period, and the device
id and action to apply to the device. I am scheduling an action where the
function that is activated is in the module I am debugging. I don't know
anything about threading/reentrancy in Lua but the failure coincides with
having scheduled an action that will be performed immediately. When I
comment the call_delay line, I don't get the error. As far as I can see,
the call_delay function argument has to be in the same module as the
call_delay statement. I will check on this in the forum. I have pasted some
MCV documentation at the bottom of this note that shows 'call_delay' in
action.
Regards,
Clive
Connecting to MCV Vera device at 192.168.0.200:3480...
Program starting as '"D:\Products\ZeroBraneStudio for
Lua\ZeroBraneStudio\bin\lua.exe" -e "local s = require('socket') local c =
s.tcp() c:settimeout(5) function check(ok, err) if not ok then print(err);
os.exit() end end check(c:connect('192.168.0.200', 3480)) check(c:send([[GET
/data_request?id=lu_action&serviceId=urn:micasaverde-com:serviceId:HomeAutomationGateway1&action=RunLua&Code=require('mobdebug').loop('192.168.0.2',8172);require('mobdebug').done()
HTTP/1.1]]..'\n\n')) c:settimeout(nil) local line, err = c:receive()
c:close() if not line:find('200 OK') then print(err or line) end"'.
Program 'lua.exe' started in
'D:\Development\MiCasaVerde\Vera\Luup\OccupiedVSwitch' (pid: 4920).
Debugging session started in
'D:\Development\MiCasaVerde\Vera\Luup\OccupiedVSwitch\'.
Debugging session completed (traced 30 instructions).
D:\Products\ZeroBraneStudio for Lua\ZeroBraneStudio\bin\lua.exe: (command
line):1: attempt to index local 'line' (a nil value)
stack traceback:
(command line):1: in main chunk
[C]: ?
Program completed in 112.97 seconds (pid: 4920; code: 1).
Example Code from the MCV Documents
Thermostat conditioned by door/window
Turn off the thermostat if the door/window is left open for 5 minutes or
more and back on if the door/window is closed for 10 minutes or more.
1. Create a scene and add a trigger to run the scene when the door sensor is
tripped (door is opened).
2. Add this code in the Luup code box:
local SENSOR = 17 -- The door/window sensor device number
local THERMOSTAT = 3 -- The thermostat device number
local DELAY = 300 -- Seconds
local SES_SID = "urn:micasaverde-com:serviceId:SecuritySensor1"
local HVACO_SID = "urn:upnp-org:serviceId:HVAC_UserOperatingMode1"
luup.call_delay( "turnOffAc", DELAY)
-- Turn off the thermostat if the sensor has been tripped for at least 5
minutes.
function turnOffAc()
local tripped = luup.variable_get( SES_SID, "Tripped", SENSOR) or "0"
local lastTrip = luup.variable_get( SES_SID, "LastTrip", SENSOR) or
os.time()
if (tripped == "1" and (os.time() - lastTrip >= DELAY)) then
local modeStatus = luup.variable_get( HVACO_SID, "ModeStatus",
THERMOSTAT) or "Off"
luup.variable_set( HVACO_SID, "LastModeStatus", modeStatus,
THERMOSTAT)
luup.call_action( HVACO_SID, "SetModeTarget", {NewModeTarget =
"Off"}, THERMOSTAT)
end
end
3. Create another scene and add a trigger to run the scene when the door
sensor is not tripped (door is closed).
4. Add this code in the Luup code box:
local SENSOR = 17 -- The door/window sensor device number
local THERMOSTAT = 3 -- The thermostat device number
local DELAY = 600 -- Seconds
local SES_SID = "urn:micasaverde-com:serviceId:SecuritySensor1"
local HVACO_SID = "urn:upnp-org:serviceId:HVAC_UserOperatingMode1"
luup.call_delay( "turnOnAc", DELAY)
-- Turn on the thermostat if the sensor hasn't been tripped in the past 10
minutes.
function turnOnAc()
local tripped = luup.variable_get( SES_SID, "Tripped", SENSOR) or "0"
local lastTrip = luup.variable_get( SES_SID, "LastTrip", SENSOR) or
os.time()
if (tripped == "0" and (os.time() - lastTrip >= DELAY)) then
local lastModeStatus = luup.variable_get( HVACO_SID,
"LastModeStatus", THERMOSTAT) or "Off"
luup.call_action( HVACO_SID, "SetModeTarget", {NewModeTarget =
lastModeStatus}, THERMOSTAT)
end
end5. Save.
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