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local serial = require " serialization "
local rc = { }
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rc.pids = { }
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local service = { }
local cfg = { }
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cfg.enabled = { " getty " , " minitel " }
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local function loadConfig ( )
local f = io.open ( " /boot/cfg/rc.cfg " , " rb " )
if not f then return false end
cfg = serial.unserialize ( f : read ( " *a " ) ) or { }
f : close ( )
cfg.enabled = cfg.enabled or { }
return true
end
local function saveConfig ( )
local f = io.open ( " /boot/cfg/rc.cfg " , " wb " )
if not f then return false end
f : write ( serial.serialize ( cfg ) )
f : close ( )
return true
end
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function rc . load ( name , force ) -- string boolean -- table -- Attempts to load service *name*, and if *force* is true, replaces the current instance.
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if force then
rc.stop ( name )
service [ name ] = nil
end
if service [ name ] then return true end
service [ name ] = setmetatable ( { } , { __index = _G } )
local f = io.open ( " /boot/service/ " .. name .. " .lua " , " rb " )
local res = load ( f : read ( " *a " ) , name , " t " , service [ name ] ) ( )
f : close ( )
return res
end
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function rc . stop ( name , ... ) -- string -- boolean string -- Stops service *name*, supplying *...* to the stop function. Returns false and a reason if this fails.
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if not service [ name ] then return false , " service not found " end
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if service [ name ] . stop then
service [ name ] . stop ( ... )
coroutine.yield ( )
end
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if rc.pids [ name ] then
os.kill ( rc.pids [ name ] )
end
rc.pids [ name ] = nil
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end
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function rc . start ( name , ... ) -- string -- boolean string -- Stops service *name*, supplying *...* to the stop function. Returns false and a reason if this fails.
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rc.load ( name )
if not service [ name ] then return false , " service not found " end
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local rv = { service [ name ] . start ( ... ) }
if type ( rv [ 1 ] ) == " number " then
rc.pids [ name ] = rv [ 1 ]
end
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end
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function rc . restart ( name ) -- string -- -- Restarts service *name* using rc.stop and rc.start.
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rc.stop ( name )
rc.start ( name )
end
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function rc . enable ( name ) -- string -- -- Enables service *name* being started on startup.
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for k , v in pairs ( cfg.enabled ) do
if v == name then return false end
end
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cfg.enabled [ # cfg.enabled + 1 ] = name
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saveConfig ( )
end
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function rc . disable ( name ) -- string -- -- Disables service *name* being started on startup.
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local disabled = false
for k , v in pairs ( cfg.enabled ) do
if v == name then table.remove ( cfg.enabled , k ) disabled = true break end
end
saveConfig ( )
return disabled
end
loadConfig ( )
_G.service = service
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rc.cfg = cfg
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return rc