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#!bin/lem
--
-- This file is part of LEM, a Lua Event Machine.
-- Copyright 2011-2012 Emil Renner Berthing
--
-- LEM is free software: you can redistribute it and/or modify it
-- under the terms of the GNU Lesser General Public License as
-- published by the Free Software Foundation, either version 3 of
-- the License, or (at your option) any later version.
--
-- LEM is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public
-- License along with LEM. If not, see <http://www.gnu.org/licenses/>.
--
package.path = '?.lua'
package.cpath = '?.so'
local utils = require 'lem.utils'
local queue = require 'lem.queue'
local consumers = 0
local function consumer(q, id)
consumers = consumers + 1
local sleeper = utils.newsleeper()
for v in q:consume() do
print(string.format('thread %d, n = %2d, received "%s"',
id, q.n, tostring(v)))
sleeper:sleep(0.04)
end
consumers = consumers - 1
end
local q, sleeper = queue.new(), utils.newsleeper()
print "One consumer:\n"
for i = 1, 5 do
q:put(i)
end
utils.spawn(consumer, q, 1)
utils.yield()
assert(consumers == 1)
for i = 6, 10 do
q:put(i)
sleeper:sleep(0.1)
end
assert(q:empty())
assert(consumers == 1)
q:reset()
utils.yield()
assert(consumers == 0)
print "\nFive consumers:\n"
for i = 1, 10 do
q:put(i)
end
for i = 1, 5 do
utils.spawn(consumer, q, i)
end
utils.yield()
assert(consumers == 5)
for i = 11, 20 do
q:put(i)
sleeper:sleep(0.1)
end
assert(q:empty())
assert(consumers == 5)
q:signal(nil)
utils.yield()
assert(consumers == 0)
-- vim: syntax=lua ts=2 sw=2 noet:
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