Lock

The Lock() function is used to create a thread lock object.

The Lock() function returns a thread lock object.

ThreadLock object

Lock()

function consumer(productionQuantity, dict, lock) {
    for (var i = 0; i < productionQuantity; i++) {
        lock.acquire()
        var count = dict.get("count")        
        Log("consumer:", count)
        Sleep(1000)
        lock.release()
    }
}

function producer(productionQuantity, dict, lock) {
    for (var i = 0; i < productionQuantity; i++) {
        lock.acquire()
        dict.set("count", i)
        Log("producer:", i)
        Sleep(1000)
        lock.release()
    }
}

function main() {
    var dict = threading.Dict()
    dict.set("count", -1)
    var lock = threading.Lock()
    var productionQuantity = 10
    var producerThread = threading.Thread(producer, productionQuantity, dict, lock)
    var consumerThread = threading.Thread(consumer, productionQuantity, dict, lock)

    consumerThread.join()
    producerThread.join()
}

Two concurrent threads access a common resource.

It supports backtesting system and live trading environment.

{@fun/Threads/threading/getThread getThread}, {@fun/Threads/threading/mainThread mainThread}, {@fun/Threads/threading/currentThread currentThread}, {@fun/Threads/threading/Thread Thread}, {@fun/Threads/threading/Condition Condition}, {@fun/Threads/threading/Event Event}, {@fun/Threads/threading/Dict Dict}, {@fun/Threads/threading/pending pending}, {@fun/Threads/threading/eventLoop eventLoop}

currentThread Condition