[SR-5516] Upload tasks don't call the urlSession(_:task:didSendBodyData...) delegate method

[pushkarnk]

Previous ID	SR-5516
Radar	None
Original Reporter	@pushkarnk
Type	Bug
Status	Closed
Resolution	Done

Additional Detail from JIRA

Votes	0
Component/s	Foundation
Labels	Bug, Linux
Assignee	@pushkarnk
Priority	Medium

md5: 961cc02a2b082602c3cf7791b69806ca

Issue Description:

import Foundation
import Dispatch

class HTTPUploadDelegate: NSObject {
    var totalBytesSent: Int64 = 0
}

extension HTTPUploadDelegate: URLSessionTaskDelegate {

    func urlSession(_ session: URLSession, task: URLSessionTask, didSendBodyData bytesSent: Int64, totalBytesSent: Int64, totalBytesExpectedToSend: Int64) {
        self.totalBytesSent = totalBytesSent
    }
}

extension HTTPUploadDelegate: URLSessionDataDelegate {
    func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive data: Data) {
        print("totalBytesSent = \(totalBytesSent)")
        exit(0)
    }
}

let session = URLSession(configuration: .default, delegate: HTTPUploadDelegate(), delegateQueue: nil)
var request = URLRequest(url: URL(string: "http://posttestserver.com/post.php")!)
request.httpMethod = "POST"
let fileData = Data(count: 48*1024)
let task = session.uploadTask(with: request, from: fileData)
task.resume()
dispatchMain()

Expected output (also, output on Darwin):
totalBytesSent = 49152

Output on Linux:
totalBytesSent = 0

[pushkarnk]

#1121