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--
-- FIFO.LUA
--
-- Sample program for Lua Lanes
--
local lanes = require "lanes".configure{shutdown_timeout=3,with_timers=true}
local linda = lanes.linda( "atom")
local atomic_inc= lanes.genatomic( linda, "FIFO_n")
assert( atomic_inc()==1)
assert( atomic_inc()==2)
local function FIFO()
local my_channel= "FIFO"..atomic_inc()
return {
-- Giving explicit 'nil' timeout allows numbers to be used as 'my_channel'
--
send = function(self, ...)
linda:send( nil, my_channel, ...)
end,
receive = function(self, timeout)
return linda:receive( timeout, my_channel)
end
}
end
local A = FIFO()
local B = FIFO()
print "Sending to A.."
A:send( 1,2,3,4,5)
print "Sending to B.."
B:send( 'a','b','c')
print "Reading A.."
print( A:receive( 1.0))
print "Reading B.."
print( B:receive( 2.0))
-- Note: A and B can be passed between threads, or used as upvalues
-- by multiple threads (other parts will be copied but the 'linda'
-- handle is shared userdata and will thus point to the single place)
lanes.timer_lane:cancel() -- hard cancel, 0 timeout
lanes.timer_lane:join()
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