threading.pending

Gets the number of concurrent threads currently running in the strategy program.

    
    
    
pending()

Examples

Create two concurrently running threads and call the pending() function at different time points.

    javascript
    
    
function threadFun1() {
    Log("threadFun1")
    Sleep(3000)
}

function threadFun2() {
    for (var i = 0; i < 3; i++) {
        LogStatus(_D(), "print from threadFun2")
        Sleep(3000)
    }
}

function main() {
    Log(`begin -- threading.pending():`, threading.pending())

    var t1 = threading.Thread(threadFun1)
    var t2 = threading.Thread(threadFun2)
    Log(`after threading.Thread -- threading.pending():`, threading.pending())

    t1.join()
    t2.join()
    Log(`after thread.join -- threading.pending():`, threading.pending())
}

Returns

See Also

Remarks

When the strategy's main() function starts running, directly calling pending() will return 1, because the main thread where main() function is located is also counted as a running thread.

Supports both backtesting system and live trading environment.