discard """
output: '''obj2 @[]
obj @[]
obj3 @[]
3
obj2 @[]
obj @[]
obj3 @[]'''
cmd: "nim c -r --threads:on $file"
"""
# bug #4776
import tables
type
Base* = ref object of RootObj
someSeq: seq[int]
baseData: array[400000, byte]
Derived* = ref object of Base
data: array[400000, byte]
type
ThreadPool = ref object
threads: seq[ptr Thread[ThreadArg]]
channels: seq[ThreadArg]
TableChannel = Channel[TableRef[string, Base]]
ThreadArg = ptr TableChannel
var globalTable {.threadvar.}: TableRef[string, Base]
globalTable = newTable[string, Base]()
let d = new(Derived)
globalTable.add("obj", d)
globalTable.add("obj2", d)
globalTable.add("obj3", d)
proc testThread(channel: ptr TableChannel) {.thread.} =
globalTable = channel[].recv()
for k, v in pairs globaltable:
echo k, " ", v.someSeq
var myObj: Base
deepCopy(myObj, globalTable["obj"])
myObj.someSeq = newSeq[int](100)
let table = channel[].recv() # same table
echo table.len
for k, v in mpairs table:
echo k, " ", v.someSeq
assert(table.contains("obj")) # fails!
assert(table.contains("obj2")) # fails!
assert(table.contains("obj3")) # fails!
var channel: TableChannel
proc newThreadPool(threadCount: int) = #: ThreadPool =
#new(result)
#result.threads = newSeq[ptr Thread[ThreadArg]](threadCount)
#var channel = cast[ptr TableChannel](allocShared0(sizeof(TableChannel)))
channel.open()
channel.send(globalTable)
channel.send(globalTable)
#createThread(threadPtr[], testThread, addr channel)
testThread(addr channel)
#result.threads[i] = threadPtr
proc stop(p: ThreadPool) =
for t in p.threads:
joinThread(t[])
dealloc(t)
newThreadPool(1)#.stop()