1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
-- Copyright (c) 2011 by Robert G. Jakabosky <bobby@sharedrealm.com>
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy
-- of this software and associated documentation files (the "Software"), to deal
-- in the Software without restriction, including without limitation the rights
-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-- copies of the Software, and to permit persons to whom the Software is
-- furnished to do so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in
-- all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-- THE SOFTWARE.
local llthreads = require"llthreads"
local sleep
local status, socket = pcall(require,"socket")
if status then
sleep = function(secs)
return socket.sleep(secs)
end
else
sleep = function(secs)
os.execute("sleep " .. tonumber(secs))
end
end
local dump_code = [==[
local function dump_recur(seen, obj, depth)
local out
local t = type(obj)
-- if not a table just convert to string.
if t ~= "table" then
if t == "string" then
return '"' .. obj .. '"'
end
return tostring(obj)
end
-- check if this table has been seen already.
if seen[obj] then
return "Already dumped " .. tostring(obj)
end
seen[obj] = true
-- restrict max depth.
if depth >= 10 then
return "{... max depth reached ...}"
end
depth = depth + 1
-- output table key/value pairs
local tabs = string.rep(" ",depth)
local out = "{\n"
for k,v in pairs(obj) do
if type(k) ~= "number" then
out = out .. tabs .. '[' .. dump_recur(seen, k, depth) .. '] = ' ..
dump_recur(seen, v, depth) .. ',\n'
else
out = out .. tabs .. '[' .. k .. '] = ' .. dump_recur(seen, v, depth) .. ',\n'
end
end
return out .. tabs:sub(1,-3) .. "}"
end
local obj = ...
local seen = {}
return dump_recur(seen, obj, 0)
]==]
local dump = (loadstring or load)(dump_code)
local child_code = [==[
local dump = (loadstring or load)[[
]==] .. dump_code .. [==[
]]
local args = ...
print("Child thread args:", dump(args))
-- return all values.
return ...
]==]
local function test_thread_value_copying(...)
local args = {...}
print("Main thread args:", dump(args))
local thread = llthreads.new(child_code, args)
-- start joinable thread
assert(thread:start())
local status, results = thread:join()
print("Main thread results:", dump(results))
end
-- create some tables.
local a1 = { "a1" }
local a2 = { "a2" }
local a3 = { "a3" }
local a4 = { "a4" }
local b1 = { a1, a2, a3, a4 }
local b2 = { a1=a1, a2=a2, a3=a3, a4=a4 }
--
-- no loops
--
test_thread_value_copying(b1, b2)
local top = {}
-- self reference.
top.top = top
top[top] = top
-- nested reference.
top.sub1 = { sub2 = { sub3 = { top } } }
--
-- loops
--
test_thread_value_copying(top)
--
-- Test max depth
--
local outer = {}
for n=1,100 do
outer = {outer}
end
local status, err = pcall(test_thread_value_copying,outer)
assert(not status, "Assertion failed: max depth test failed.")
|
