oxen-io
/
session-ios
mirror of https://github.com/oxen-io/session-ios.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Avoid race condition

This commit is contained in:
nielsandriesse 2020-08-03 09:54:05 +10:00
parent 37c1bb9a4b
commit b5f1f481af
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Signal/src/Loki/Utilities/IP2Country.swift
View File

@ -1,10 +1,12 @@
import SwiftCSV
final class IP2Country {
var countryNamesCache: [String:String] = [:]
private lazy var ipv4Table = try! CSV(name: "GeoLite2-Country-Blocks-IPv4", extension: "csv", bundle: .main, delimiter: ",", encoding: .utf8, loadColumns: true)!
private lazy var countryNamesTable = try! CSV(name: "GeoLite2-Country-Locations-English", extension: "csv", bundle: .main, delimiter: ",", encoding: .utf8, loadColumns: true)!
var countryNamesCache: [String:String] = [:]
private static let workQueue = DispatchQueue(label: "IP2Country.workQueue", qos: .utility) // It's important that this is a serial queue
static var isInitialized = false
@ -44,7 +46,7 @@ final class IP2Country {
}
@objc func populateCacheIfNeededAsync() {
DispatchQueue.global(qos: .utility).async {
IP2Country.workQueue.async {
let _ = self.populateCacheIfNeeded()
}
}