Move Reachability to RSWeb
This commit is contained in:
parent
461f0f35d1
commit
8b3bd2f388
|
@ -155,8 +155,6 @@
|
|||
513146B3235A81A400387FDC /* AddWebFeedIntentHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 513146B1235A81A400387FDC /* AddWebFeedIntentHandler.swift */; };
|
||||
51314704235C41FC00387FDC /* Intents.intentdefinition in Sources */ = {isa = PBXBuildFile; fileRef = 51314707235C41FC00387FDC /* Intents.intentdefinition */; };
|
||||
51314705235C41FC00387FDC /* Intents.intentdefinition in Sources */ = {isa = PBXBuildFile; fileRef = 51314707235C41FC00387FDC /* Intents.intentdefinition */; };
|
||||
513228FB233037630033D4ED /* Reachability.swift in Sources */ = {isa = PBXBuildFile; fileRef = 513228F2233037620033D4ED /* Reachability.swift */; };
|
||||
513228FC233037630033D4ED /* Reachability.swift in Sources */ = {isa = PBXBuildFile; fileRef = 513228F2233037620033D4ED /* Reachability.swift */; };
|
||||
51333D1624685D2E00EB5C91 /* AddRedditFeedWindowController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 51333D1524685D2E00EB5C91 /* AddRedditFeedWindowController.swift */; };
|
||||
51333D1724685D2E00EB5C91 /* AddRedditFeedWindowController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 51333D1524685D2E00EB5C91 /* AddRedditFeedWindowController.swift */; };
|
||||
51333D3B2468615D00EB5C91 /* AddRedditFeedSheet.xib in Resources */ = {isa = PBXBuildFile; fileRef = 51333D392468615D00EB5C91 /* AddRedditFeedSheet.xib */; };
|
||||
|
@ -584,8 +582,6 @@
|
|||
51E4993424A867E700B667CB /* UserInfoKey.swift in Sources */ = {isa = PBXBuildFile; fileRef = 511B9805237DCAC90028BCAA /* UserInfoKey.swift */; };
|
||||
51E4993524A867E800B667CB /* AppNotifications.swift in Sources */ = {isa = PBXBuildFile; fileRef = 842E45CD1ED8C308000A8B52 /* AppNotifications.swift */; };
|
||||
51E4993624A867E800B667CB /* UserInfoKey.swift in Sources */ = {isa = PBXBuildFile; fileRef = 511B9805237DCAC90028BCAA /* UserInfoKey.swift */; };
|
||||
51E4993724A8680E00B667CB /* Reachability.swift in Sources */ = {isa = PBXBuildFile; fileRef = 513228F2233037620033D4ED /* Reachability.swift */; };
|
||||
51E4993824A8680E00B667CB /* Reachability.swift in Sources */ = {isa = PBXBuildFile; fileRef = 513228F2233037620033D4ED /* Reachability.swift */; };
|
||||
51E4993A24A8708800B667CB /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 51E4993924A8708800B667CB /* AppDelegate.swift */; };
|
||||
51E4993C24A8709900B667CB /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 51E4993B24A8709900B667CB /* AppDelegate.swift */; };
|
||||
51E4993D24A870F800B667CB /* UserNotificationManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 51FE10022345529D0056195D /* UserNotificationManager.swift */; };
|
||||
|
@ -725,7 +721,6 @@
|
|||
65ED3FC4235DEF6C0081F399 /* OPMLExporter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8444C8F11FED81840051386C /* OPMLExporter.swift */; };
|
||||
65ED3FC5235DEF6C0081F399 /* MainWindowController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 849A975D1ED9EB72007D329B /* MainWindowController.swift */; };
|
||||
65ED3FC6235DEF6C0081F399 /* UnreadFeed.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84F2D5391FC2308B00998D64 /* UnreadFeed.swift */; };
|
||||
65ED3FC7235DEF6C0081F399 /* Reachability.swift in Sources */ = {isa = PBXBuildFile; fileRef = 513228F2233037620033D4ED /* Reachability.swift */; };
|
||||
65ED3FC8235DEF6C0081F399 /* SidebarCellLayout.swift in Sources */ = {isa = PBXBuildFile; fileRef = 845A29211FC9251E007B49E3 /* SidebarCellLayout.swift */; };
|
||||
65ED3FC9235DEF6C0081F399 /* SmartFeedPasteboardWriter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84AD1EB92031649C00BC20B7 /* SmartFeedPasteboardWriter.swift */; };
|
||||
65ED3FCA235DEF6C0081F399 /* SmartFeedsController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84CC88171FE59CBF00644329 /* SmartFeedsController.swift */; };
|
||||
|
@ -1526,7 +1521,6 @@
|
|||
513146B1235A81A400387FDC /* AddWebFeedIntentHandler.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AddWebFeedIntentHandler.swift; sourceTree = "<group>"; };
|
||||
51314706235C41FC00387FDC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.intentdefinition; name = Base; path = Base.lproj/Intents.intentdefinition; sourceTree = "<group>"; };
|
||||
51314714235C420900387FDC /* en */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = en; path = en.lproj/Intents.strings; sourceTree = "<group>"; };
|
||||
513228F2233037620033D4ED /* Reachability.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Reachability.swift; sourceTree = "<group>"; };
|
||||
51333D1524685D2E00EB5C91 /* AddRedditFeedWindowController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AddRedditFeedWindowController.swift; sourceTree = "<group>"; };
|
||||
51333D3A2468615D00EB5C91 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Mac/Base.lproj/AddRedditFeedSheet.xib; sourceTree = SOURCE_ROOT; };
|
||||
51392D1A24AC19A000BE0D35 /* SidebarExpandedContainers.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SidebarExpandedContainers.swift; sourceTree = "<group>"; };
|
||||
|
@ -2387,14 +2381,6 @@
|
|||
path = IntentsExtension;
|
||||
sourceTree = "<group>";
|
||||
};
|
||||
513228F1233037620033D4ED /* Network */ = {
|
||||
isa = PBXGroup;
|
||||
children = (
|
||||
513228F2233037620033D4ED /* Reachability.swift */,
|
||||
);
|
||||
path = Network;
|
||||
sourceTree = "<group>";
|
||||
};
|
||||
513C5CE7232571C2003D4054 /* ShareExtension */ = {
|
||||
isa = PBXGroup;
|
||||
children = (
|
||||
|
@ -3309,7 +3295,6 @@
|
|||
512E08DD22687FA000BDCFDD /* Tree */,
|
||||
849A97561ED9EB0D007D329B /* Extensions */,
|
||||
510C43F5243D0325009F70C3 /* ExtensionPoints */,
|
||||
513228F1233037620033D4ED /* Network */,
|
||||
511D43CE231FA51100FB1562 /* Resources */,
|
||||
);
|
||||
path = Shared;
|
||||
|
@ -4554,7 +4539,6 @@
|
|||
5177476724B3BE3400EB0F74 /* SettingsAboutModel.swift in Sources */,
|
||||
65C2E40124B05D8A000AFDF6 /* FeedsSettingsModel.swift in Sources */,
|
||||
51E4990A24A808C500B667CB /* FeaturedImageDownloader.swift in Sources */,
|
||||
51E4993824A8680E00B667CB /* Reachability.swift in Sources */,
|
||||
51E4993224A8676400B667CB /* FetchRequestQueue.swift in Sources */,
|
||||
51E4991724A8090400B667CB /* ArticleUtilities.swift in Sources */,
|
||||
51E4991B24A8091000B667CB /* IconImage.swift in Sources */,
|
||||
|
@ -4672,7 +4656,6 @@
|
|||
1727B39924C1368D00A4DBDC /* LayoutPreferencesView.swift in Sources */,
|
||||
51A8FFEE24CA0CF400F41F1D /* WIthLatestFrom.swift in Sources */,
|
||||
51E4993F24A8713B00B667CB /* ArticleStatusSyncTimer.swift in Sources */,
|
||||
51E4993724A8680E00B667CB /* Reachability.swift in Sources */,
|
||||
51B80F4424BE58BF00C6C32D /* SharingServiceDelegate.swift in Sources */,
|
||||
51B54AB624B5B33C0014348B /* WebViewController.swift in Sources */,
|
||||
51E4994B24A8734C00B667CB /* SendToMicroBlogCommand.swift in Sources */,
|
||||
|
@ -4833,7 +4816,6 @@
|
|||
65ED3FC4235DEF6C0081F399 /* OPMLExporter.swift in Sources */,
|
||||
65ED3FC5235DEF6C0081F399 /* MainWindowController.swift in Sources */,
|
||||
65ED3FC6235DEF6C0081F399 /* UnreadFeed.swift in Sources */,
|
||||
65ED3FC7235DEF6C0081F399 /* Reachability.swift in Sources */,
|
||||
65ED3FC8235DEF6C0081F399 /* SidebarCellLayout.swift in Sources */,
|
||||
65ED3FC9235DEF6C0081F399 /* SmartFeedPasteboardWriter.swift in Sources */,
|
||||
515A5149243E64BA0089E588 /* ExtensionPointEnableWindowController.swift in Sources */,
|
||||
|
@ -5156,7 +5138,6 @@
|
|||
515A517C243E90260089E588 /* ExtensionPointManager.swift in Sources */,
|
||||
51627A6723861DA3007B3B4B /* MasterFeedViewController+Drag.swift in Sources */,
|
||||
51FFF0C4235EE8E5002762AA /* VibrantButton.swift in Sources */,
|
||||
513228FC233037630033D4ED /* Reachability.swift in Sources */,
|
||||
51C45259226508D300C03939 /* AppDefaults.swift in Sources */,
|
||||
51CE1C0B23622007005548FC /* RefreshProgressView.swift in Sources */,
|
||||
511D4419231FC02D00FB1562 /* KeyboardManager.swift in Sources */,
|
||||
|
@ -5190,7 +5171,6 @@
|
|||
8444C8F21FED81840051386C /* OPMLExporter.swift in Sources */,
|
||||
849A975E1ED9EB72007D329B /* MainWindowController.swift in Sources */,
|
||||
84F2D53A1FC2308B00998D64 /* UnreadFeed.swift in Sources */,
|
||||
513228FB233037630033D4ED /* Reachability.swift in Sources */,
|
||||
845A29221FC9251E007B49E3 /* SidebarCellLayout.swift in Sources */,
|
||||
510C418224E5D1AE008226FD /* ExtensionFeedAddRequest.swift in Sources */,
|
||||
516AE9DF2372269A007DEEAA /* IconImage.swift in Sources */,
|
||||
|
|
|
@ -87,8 +87,8 @@
|
|||
"repositoryURL": "https://github.com/Ranchero-Software/RSWeb.git",
|
||||
"state": {
|
||||
"branch": null,
|
||||
"revision": "043eb0098aa70ba45277cc459cbd450d13b72ff2",
|
||||
"version": "1.0.0-beta5"
|
||||
"revision": "c0bf7a93255edc0e4b53c11206209739d2af2935",
|
||||
"version": "1.0.0-beta6"
|
||||
}
|
||||
},
|
||||
{
|
||||
|
|
|
@ -8,6 +8,7 @@
|
|||
|
||||
import Foundation
|
||||
import os.log
|
||||
import RSWeb
|
||||
|
||||
struct CacheCleaner {
|
||||
|
||||
|
|
|
@ -1,406 +0,0 @@
|
|||
/*
|
||||
Copyright (c) 2014, Ashley Mills
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
1. Redistributions of source code must retain the above copyright notice, this
|
||||
list of conditions and the following disclaimer.
|
||||
|
||||
2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
import SystemConfiguration
|
||||
import Foundation
|
||||
|
||||
public enum ReachabilityError: Error {
|
||||
case failedToCreateWithAddress(sockaddr, Int32)
|
||||
case failedToCreateWithHostname(String, Int32)
|
||||
case unableToSetCallback(Int32)
|
||||
case unableToSetDispatchQueue(Int32)
|
||||
case unableToGetFlags(Int32)
|
||||
}
|
||||
|
||||
@available(*, unavailable, renamed: "Notification.Name.reachabilityChanged")
|
||||
public let ReachabilityChangedNotification = NSNotification.Name("ReachabilityChangedNotification")
|
||||
|
||||
public extension Notification.Name {
|
||||
static let reachabilityChanged = Notification.Name("reachabilityChanged")
|
||||
}
|
||||
|
||||
public class Reachability {
|
||||
|
||||
public typealias NetworkReachable = (Reachability) -> ()
|
||||
public typealias NetworkUnreachable = (Reachability) -> ()
|
||||
|
||||
@available(*, unavailable, renamed: "Connection")
|
||||
public enum NetworkStatus: CustomStringConvertible {
|
||||
case notReachable, reachableViaWiFi, reachableViaWWAN
|
||||
public var description: String {
|
||||
switch self {
|
||||
case .reachableViaWWAN: return "Cellular"
|
||||
case .reachableViaWiFi: return "WiFi"
|
||||
case .notReachable: return "No Connection"
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public enum Connection: CustomStringConvertible {
|
||||
@available(*, deprecated, renamed: "unavailable")
|
||||
case none
|
||||
case unavailable, wifi, cellular
|
||||
public var description: String {
|
||||
switch self {
|
||||
case .cellular: return "Cellular"
|
||||
case .wifi: return "WiFi"
|
||||
case .unavailable: return "No Connection"
|
||||
case .none: return "unavailable"
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public var whenReachable: NetworkReachable?
|
||||
public var whenUnreachable: NetworkUnreachable?
|
||||
|
||||
@available(*, deprecated, renamed: "allowsCellularConnection")
|
||||
public let reachableOnWWAN: Bool = true
|
||||
|
||||
/// Set to `false` to force Reachability.connection to .none when on cellular connection (default value `true`)
|
||||
public var allowsCellularConnection: Bool
|
||||
|
||||
// The notification center on which "reachability changed" events are being posted
|
||||
public var notificationCenter: NotificationCenter = NotificationCenter.default
|
||||
|
||||
@available(*, deprecated, renamed: "connection.description")
|
||||
public var currentReachabilityString: String {
|
||||
return "\(connection)"
|
||||
}
|
||||
|
||||
@available(*, unavailable, renamed: "connection")
|
||||
public var currentReachabilityStatus: Connection {
|
||||
return connection
|
||||
}
|
||||
|
||||
public var connection: Connection {
|
||||
if flags == nil {
|
||||
try? setReachabilityFlags()
|
||||
}
|
||||
|
||||
switch flags?.connection {
|
||||
case .unavailable?, nil: return .unavailable
|
||||
case .none?: return .unavailable
|
||||
case .cellular?: return allowsCellularConnection ? .cellular : .unavailable
|
||||
case .wifi?: return .wifi
|
||||
}
|
||||
}
|
||||
|
||||
fileprivate var isRunningOnDevice: Bool = {
|
||||
#if targetEnvironment(simulator)
|
||||
return false
|
||||
#else
|
||||
return true
|
||||
#endif
|
||||
}()
|
||||
|
||||
fileprivate(set) var notifierRunning = false
|
||||
fileprivate let reachabilityRef: SCNetworkReachability
|
||||
fileprivate let reachabilitySerialQueue: DispatchQueue
|
||||
fileprivate let notificationQueue: DispatchQueue?
|
||||
fileprivate(set) var flags: SCNetworkReachabilityFlags? {
|
||||
didSet {
|
||||
guard flags != oldValue else { return }
|
||||
notifyReachabilityChanged()
|
||||
}
|
||||
}
|
||||
|
||||
required public init(reachabilityRef: SCNetworkReachability,
|
||||
queueQoS: DispatchQoS = .default,
|
||||
targetQueue: DispatchQueue? = nil,
|
||||
notificationQueue: DispatchQueue? = .main) {
|
||||
self.allowsCellularConnection = true
|
||||
self.reachabilityRef = reachabilityRef
|
||||
self.reachabilitySerialQueue = DispatchQueue(label: "uk.co.ashleymills.reachability", qos: queueQoS, target: targetQueue)
|
||||
self.notificationQueue = notificationQueue
|
||||
}
|
||||
|
||||
public convenience init(hostname: String,
|
||||
queueQoS: DispatchQoS = .default,
|
||||
targetQueue: DispatchQueue? = nil,
|
||||
notificationQueue: DispatchQueue? = .main) throws {
|
||||
guard let ref = SCNetworkReachabilityCreateWithName(nil, hostname) else {
|
||||
throw ReachabilityError.failedToCreateWithHostname(hostname, SCError())
|
||||
}
|
||||
self.init(reachabilityRef: ref, queueQoS: queueQoS, targetQueue: targetQueue, notificationQueue: notificationQueue)
|
||||
}
|
||||
|
||||
public convenience init(queueQoS: DispatchQoS = .default,
|
||||
targetQueue: DispatchQueue? = nil,
|
||||
notificationQueue: DispatchQueue? = .main) throws {
|
||||
var zeroAddress = sockaddr()
|
||||
zeroAddress.sa_len = UInt8(MemoryLayout<sockaddr>.size)
|
||||
zeroAddress.sa_family = sa_family_t(AF_INET)
|
||||
|
||||
guard let ref = SCNetworkReachabilityCreateWithAddress(nil, &zeroAddress) else {
|
||||
throw ReachabilityError.failedToCreateWithAddress(zeroAddress, SCError())
|
||||
}
|
||||
|
||||
self.init(reachabilityRef: ref, queueQoS: queueQoS, targetQueue: targetQueue, notificationQueue: notificationQueue)
|
||||
}
|
||||
|
||||
deinit {
|
||||
stopNotifier()
|
||||
}
|
||||
}
|
||||
|
||||
public extension Reachability {
|
||||
|
||||
// MARK: - *** Notifier methods ***
|
||||
func startNotifier() throws {
|
||||
guard !notifierRunning else { return }
|
||||
|
||||
let callback: SCNetworkReachabilityCallBack = { (reachability, flags, info) in
|
||||
guard let info = info else { return }
|
||||
|
||||
// `weakifiedReachability` is guaranteed to exist by virtue of our
|
||||
// retain/release callbacks which we provided to the `SCNetworkReachabilityContext`.
|
||||
let weakifiedReachability = Unmanaged<ReachabilityWeakifier>.fromOpaque(info).takeUnretainedValue()
|
||||
|
||||
// The weak `reachability` _may_ no longer exist if the `Reachability`
|
||||
// object has since been deallocated but a callback was already in flight.
|
||||
weakifiedReachability.reachability?.flags = flags
|
||||
}
|
||||
|
||||
let weakifiedReachability = ReachabilityWeakifier(reachability: self)
|
||||
let opaqueWeakifiedReachability = Unmanaged<ReachabilityWeakifier>.passUnretained(weakifiedReachability).toOpaque()
|
||||
|
||||
var context = SCNetworkReachabilityContext(
|
||||
version: 0,
|
||||
info: UnsafeMutableRawPointer(opaqueWeakifiedReachability),
|
||||
retain: { (info: UnsafeRawPointer) -> UnsafeRawPointer in
|
||||
let unmanagedWeakifiedReachability = Unmanaged<ReachabilityWeakifier>.fromOpaque(info)
|
||||
_ = unmanagedWeakifiedReachability.retain()
|
||||
return UnsafeRawPointer(unmanagedWeakifiedReachability.toOpaque())
|
||||
},
|
||||
release: { (info: UnsafeRawPointer) -> Void in
|
||||
let unmanagedWeakifiedReachability = Unmanaged<ReachabilityWeakifier>.fromOpaque(info)
|
||||
unmanagedWeakifiedReachability.release()
|
||||
},
|
||||
copyDescription: { (info: UnsafeRawPointer) -> Unmanaged<CFString> in
|
||||
let unmanagedWeakifiedReachability = Unmanaged<ReachabilityWeakifier>.fromOpaque(info)
|
||||
let weakifiedReachability = unmanagedWeakifiedReachability.takeUnretainedValue()
|
||||
let description = weakifiedReachability.reachability?.description ?? "nil"
|
||||
return Unmanaged.passRetained(description as CFString)
|
||||
}
|
||||
)
|
||||
|
||||
if !SCNetworkReachabilitySetCallback(reachabilityRef, callback, &context) {
|
||||
stopNotifier()
|
||||
throw ReachabilityError.unableToSetCallback(SCError())
|
||||
}
|
||||
|
||||
if !SCNetworkReachabilitySetDispatchQueue(reachabilityRef, reachabilitySerialQueue) {
|
||||
stopNotifier()
|
||||
throw ReachabilityError.unableToSetDispatchQueue(SCError())
|
||||
}
|
||||
|
||||
// Perform an initial check
|
||||
try setReachabilityFlags()
|
||||
|
||||
notifierRunning = true
|
||||
}
|
||||
|
||||
func stopNotifier() {
|
||||
defer { notifierRunning = false }
|
||||
|
||||
SCNetworkReachabilitySetCallback(reachabilityRef, nil, nil)
|
||||
SCNetworkReachabilitySetDispatchQueue(reachabilityRef, nil)
|
||||
}
|
||||
|
||||
// MARK: - *** Connection test methods ***
|
||||
@available(*, deprecated, message: "Please use `connection != .none`")
|
||||
var isReachable: Bool {
|
||||
return connection != .unavailable
|
||||
}
|
||||
|
||||
@available(*, deprecated, message: "Please use `connection == .cellular`")
|
||||
var isReachableViaWWAN: Bool {
|
||||
// Check we're not on the simulator, we're REACHABLE and check we're on WWAN
|
||||
return connection == .cellular
|
||||
}
|
||||
|
||||
@available(*, deprecated, message: "Please use `connection == .wifi`")
|
||||
var isReachableViaWiFi: Bool {
|
||||
return connection == .wifi
|
||||
}
|
||||
|
||||
var description: String {
|
||||
return flags?.description ?? "unavailable flags"
|
||||
}
|
||||
}
|
||||
|
||||
fileprivate extension Reachability {
|
||||
|
||||
func setReachabilityFlags() throws {
|
||||
try reachabilitySerialQueue.sync { [unowned self] in
|
||||
var flags = SCNetworkReachabilityFlags()
|
||||
if !SCNetworkReachabilityGetFlags(self.reachabilityRef, &flags) {
|
||||
self.stopNotifier()
|
||||
throw ReachabilityError.unableToGetFlags(SCError())
|
||||
}
|
||||
|
||||
self.flags = flags
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
func notifyReachabilityChanged() {
|
||||
let notify = { [weak self] in
|
||||
guard let self = self else { return }
|
||||
self.connection != .unavailable ? self.whenReachable?(self) : self.whenUnreachable?(self)
|
||||
self.notificationCenter.post(name: .reachabilityChanged, object: self)
|
||||
}
|
||||
|
||||
// notify on the configured `notificationQueue`, or the caller's (i.e. `reachabilitySerialQueue`)
|
||||
notificationQueue?.async(execute: notify) ?? notify()
|
||||
}
|
||||
}
|
||||
|
||||
extension SCNetworkReachabilityFlags {
|
||||
|
||||
typealias Connection = Reachability.Connection
|
||||
|
||||
var connection: Connection {
|
||||
guard isReachableFlagSet else { return .unavailable }
|
||||
|
||||
// If we're reachable, but not on an iOS device (i.e. simulator), we must be on WiFi
|
||||
#if targetEnvironment(simulator)
|
||||
return .wifi
|
||||
#else
|
||||
var connection = Connection.unavailable
|
||||
|
||||
if !isConnectionRequiredFlagSet {
|
||||
connection = .wifi
|
||||
}
|
||||
|
||||
if isConnectionOnTrafficOrDemandFlagSet {
|
||||
if !isInterventionRequiredFlagSet {
|
||||
connection = .wifi
|
||||
}
|
||||
}
|
||||
|
||||
if isOnWWANFlagSet {
|
||||
connection = .cellular
|
||||
}
|
||||
|
||||
return connection
|
||||
#endif
|
||||
}
|
||||
|
||||
var isOnWWANFlagSet: Bool {
|
||||
#if os(iOS)
|
||||
return contains(.isWWAN)
|
||||
#else
|
||||
return false
|
||||
#endif
|
||||
}
|
||||
var isReachableFlagSet: Bool {
|
||||
return contains(.reachable)
|
||||
}
|
||||
var isConnectionRequiredFlagSet: Bool {
|
||||
return contains(.connectionRequired)
|
||||
}
|
||||
var isInterventionRequiredFlagSet: Bool {
|
||||
return contains(.interventionRequired)
|
||||
}
|
||||
var isConnectionOnTrafficFlagSet: Bool {
|
||||
return contains(.connectionOnTraffic)
|
||||
}
|
||||
var isConnectionOnDemandFlagSet: Bool {
|
||||
return contains(.connectionOnDemand)
|
||||
}
|
||||
var isConnectionOnTrafficOrDemandFlagSet: Bool {
|
||||
return !intersection([.connectionOnTraffic, .connectionOnDemand]).isEmpty
|
||||
}
|
||||
var isTransientConnectionFlagSet: Bool {
|
||||
return contains(.transientConnection)
|
||||
}
|
||||
var isLocalAddressFlagSet: Bool {
|
||||
return contains(.isLocalAddress)
|
||||
}
|
||||
var isDirectFlagSet: Bool {
|
||||
return contains(.isDirect)
|
||||
}
|
||||
var isConnectionRequiredAndTransientFlagSet: Bool {
|
||||
return intersection([.connectionRequired, .transientConnection]) == [.connectionRequired, .transientConnection]
|
||||
}
|
||||
|
||||
var description: String {
|
||||
let W = isOnWWANFlagSet ? "W" : "-"
|
||||
let R = isReachableFlagSet ? "R" : "-"
|
||||
let c = isConnectionRequiredFlagSet ? "c" : "-"
|
||||
let t = isTransientConnectionFlagSet ? "t" : "-"
|
||||
let i = isInterventionRequiredFlagSet ? "i" : "-"
|
||||
let C = isConnectionOnTrafficFlagSet ? "C" : "-"
|
||||
let D = isConnectionOnDemandFlagSet ? "D" : "-"
|
||||
let l = isLocalAddressFlagSet ? "l" : "-"
|
||||
let d = isDirectFlagSet ? "d" : "-"
|
||||
|
||||
return "\(W)\(R) \(c)\(t)\(i)\(C)\(D)\(l)\(d)"
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
`ReachabilityWeakifier` weakly wraps the `Reachability` class
|
||||
in order to break retain cycles when interacting with CoreFoundation.
|
||||
|
||||
CoreFoundation callbacks expect a pair of retain/release whenever an
|
||||
opaque `info` parameter is provided. These callbacks exist to guard
|
||||
against memory management race conditions when invoking the callbacks.
|
||||
|
||||
#### Race Condition
|
||||
|
||||
If we passed `SCNetworkReachabilitySetCallback` a direct reference to our
|
||||
`Reachability` class without also providing corresponding retain/release
|
||||
callbacks, then a race condition can lead to crashes when:
|
||||
- `Reachability` is deallocated on thread X
|
||||
- A `SCNetworkReachability` callback(s) is already in flight on thread Y
|
||||
|
||||
#### Retain Cycle
|
||||
|
||||
If we pass `Reachability` to CoreFoundtion while also providing retain/
|
||||
release callbacks, we would create a retain cycle once CoreFoundation
|
||||
retains our `Reachability` class. This fixes the crashes and his how
|
||||
CoreFoundation expects the API to be used, but doesn't play nicely with
|
||||
Swift/ARC. This cycle would only be broken after manually calling
|
||||
`stopNotifier()` — `deinit` would never be called.
|
||||
|
||||
#### ReachabilityWeakifier
|
||||
|
||||
By providing both retain/release callbacks and wrapping `Reachability` in
|
||||
a weak wrapper, we:
|
||||
- interact correctly with CoreFoundation, thereby avoiding a crash.
|
||||
See "Memory Management Programming Guide for Core Foundation".
|
||||
- don't alter the public API of `Reachability.swift` in any way
|
||||
- still allow for automatic stopping of the notifier on `deinit`.
|
||||
*/
|
||||
private class ReachabilityWeakifier {
|
||||
weak var reachability: Reachability?
|
||||
init(reachability: Reachability) {
|
||||
self.reachability = reachability
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue