Suivi / surveillance de l'utilisation des données iPhone
J'ai fait des recherches sur ce sujet, mais j'ai trouvé très peu de détails utiles. Avec ces détails, j'ai essayé de cuisiner du code comme suit.
Remarque: veuillez comparer les détails partagés dans ce message avec d'autres messages avant de marquer ceci comme DUPLICATE, et pas seulement par le sujet.
- (NSArray *)getDataCountersForType:(int)type {
BOOL success;
struct ifaddrs *addrs = nil;
const struct ifaddrs *cursor = nil;
const struct sockaddr_dl *dlAddr = nil;
const struct if_data *networkStatisc = nil;
int dataSent = 0;
int dataReceived = 0;
success = getifaddrs(&addrs) == 0;
if (success) {
cursor = addrs;
while (cursor != NULL) {
if (cursor->ifa_addr->sa_family == AF_LINK) {
dlAddr = (const struct sockaddr_dl *) cursor->ifa_addr;
networkStatisc = (const struct if_data *) cursor->ifa_data;
if (type == WiFi) {
dataSent += networkStatisc->ifi_opackets;
dataReceived += networkStatisc->ifi_ipackets;
}
else if (type == WWAN) {
dataSent += networkStatisc->ifi_obytes;
dataReceived += networkStatisc->ifi_ibytes;
}
}
cursor = cursor->ifa_next;
}
freeifaddrs(addrs);
}
return [NSArray arrayWithObjects:[NSNumber numberWithInt:dataSent], [NSNumber numberWithInt:dataReceived], nil];
}
Ce code recueille des informations sur l'utilisation d'Internet d'un appareil iPhone (et pas uniquement de mon application).
Maintenant, si j'utilise Internet via WiFi ou 3G, je reçois les données (octets) uniquement en ifi_obytes (envoyé) et ifi_ibytes (reçu) mais je pense que je devrais utiliser le WiFi dans ifi_opackets et ifi_ipackets.
Je voulais aussi ajouter que si je suis connecté à un réseau WiFi, mais que je n'utilise pas Internet, j'obtiens toujours de la valeur ajoutée à ifi_obytes et ifi_ibytes.
Peut-être que je me trompe dans la mise en œuvre ou la compréhension. Besoin de quelqu'un pour m'aider.
Edit: Au lieu de AF_LINK J'ai essayé AF_INET (sockaddr_in au lieu de sockaddr_dl). Cela bloque l'application.
Le truc c'est que pdp_ip0 est l'une des interfaces, toutes les pdpXXX sont WWAN interfaces dédiées à différentes fonctions, messagerie vocale, interface réseau générale.
J'ai lu dans Apple) que: Le système d'exploitation ne conserve pas les statistiques du réseau processus par processus. En tant que tel, il n'existe pas de solution exacte à ce problème. Vous pouvez toutefois obtenir un réseau. statistiques pour chaque interface réseau.
En général en0 est ton Wi-Fi interface et pdp_ip0 est votre interface WWAN.
Il n’existe aucun moyen efficace d’obtenir des informations de données de réseau wifi/cellulaire depuis, date-heure particulière!
Données statistiques (ifa_data->ifi_obytes et ifa_data->ifi_ibytes) sont stockés depuis le redémarrage précédent du périphérique.
Je ne sais pas pourquoi, mais ifi_opackets et ifi_ipackets sont affichés uniquement pour lo0 _ (Je pense que son interface principale).
Oui. Ensuite, l'appareil est connecté via WiFi et n'utilise pas Internet if_iobytes _ Les valeurs viennent toujours car cette méthode fournit des échanges d’octets réseau et pas seulement Internet.
#include <net/if.h>
#include <ifaddrs.h>
static NSString *const DataCounterKeyWWANSent = @"WWANSent";
static NSString *const DataCounterKeyWWANReceived = @"WWANReceived";
static NSString *const DataCounterKeyWiFiSent = @"WiFiSent";
static NSString *const DataCounterKeyWiFiReceived = @"WiFiReceived";
NSDictionary *DataCounters()
{
struct ifaddrs *addrs;
const struct ifaddrs *cursor;
u_int32_t WiFiSent = 0;
u_int32_t WiFiReceived = 0;
u_int32_t WWANSent = 0;
u_int32_t WWANReceived = 0;
if (getifaddrs(&addrs) == 0)
{
cursor = addrs;
while (cursor != NULL)
{
if (cursor->ifa_addr->sa_family == AF_LINK)
{
#ifdef DEBUG
const struct if_data *ifa_data = (struct if_data *)cursor->ifa_data;
if (ifa_data != NULL)
{
NSLog(@"Interface name %s: sent %tu received %tu",cursor->ifa_name,ifa_data->ifi_obytes,ifa_data->ifi_ibytes);
}
#endif
// name of interfaces:
// en0 is WiFi
// pdp_ip0 is WWAN
NSString *name = @(cursor->ifa_name);
if ([name hasPrefix:@"en"])
{
const struct if_data *ifa_data = (struct if_data *)cursor->ifa_data;
if (ifa_data != NULL)
{
WiFiSent += ifa_data->ifi_obytes;
WiFiReceived += ifa_data->ifi_ibytes;
}
}
if ([name hasPrefix:@"pdp_ip"])
{
const struct if_data *ifa_data = (struct if_data *)cursor->ifa_data;
if (ifa_data != NULL)
{
WWANSent += ifa_data->ifi_obytes;
WWANReceived += ifa_data->ifi_ibytes;
}
}
}
cursor = cursor->ifa_next;
}
freeifaddrs(addrs);
}
return @{DataCounterKeyWiFiSent : @(WiFiSent),
DataCounterKeyWiFiReceived : @(WiFiReceived),
DataCounterKeyWWANSent : @(WWANSent),
DataCounterKeyWWANReceived : @(WWANReceived)};
}
Amélioration du support copier/coller!
Il est important de comprendre que ces compteurs sont fournis depuis le dernier démarrage du périphérique.
Donc, pour les utiliser efficacement, vous devez accompagner chaque échantillon du temps de disponibilité de l'appareil (vous pouvez utiliser mach_absolute_time() - voir this pour plus d'informations).
Une fois que vous avez compteurs échantillons + temps de disponibilité, vous pouvez avoir une meilleure heuristique quant à l'utilisation des données ...
Pour ajouter à la réponse acceptée, il est important de réaliser que la quantité de données affichée par l'interface déborde et redémarre à 0 après chaque 4 GB, surtout si vous utilisez ce code pour calculer la différence entre deux lectures. Ceci est dû au fait ifi_obytes et ifi_ibytes sont uint_32 et leur valeur maximale est 4294967295.
Aussi, je recommande d'utiliser unsigned ints pour les variables contenant les données envoyées et reçues. Les valeurs normales de ints ont la moitié de la valeur maximale d'un entier non signé, donc lors de l'ajout de ifi_obytes, cela peut provoquer un débordement.
unsigned int sent = 0;
sent += networkStatisc->ifi_obytes;
J'ai corrigé le code source ci-dessus à la version Swift3
struct DataUsageInfo {
var wifiReceived: UInt32 = 0
var wifiSent: UInt32 = 0
var wirelessWanDataReceived: UInt32 = 0
var wirelessWanDataSent: UInt32 = 0
mutating func updateInfoByAdding(_ info: DataUsageInfo) {
wifiSent += info.wifiSent
wifiReceived += info.wifiReceived
wirelessWanDataSent += info.wirelessWanDataSent
wirelessWanDataReceived += info.wirelessWanDataReceived
}
}
class DataUsage {
private static let wwanInterfacePrefix = "pdp_ip"
private static let wifiInterfacePrefix = "en"
class func getDataUsage() -> DataUsageInfo {
var ifaddr: UnsafeMutablePointer<ifaddrs>?
var dataUsageInfo = DataUsageInfo()
guard getifaddrs(&ifaddr) == 0 else { return dataUsageInfo }
while let addr = ifaddr {
guard let info = getDataUsageInfo(from: addr) else {
ifaddr = addr.pointee.ifa_next
continue
}
dataUsageInfo.updateInfoByAdding(info)
ifaddr = addr.pointee.ifa_next
}
freeifaddrs(ifaddr)
return dataUsageInfo
}
private class func getDataUsageInfo(from infoPointer: UnsafeMutablePointer<ifaddrs>) -> DataUsageInfo? {
let pointer = infoPointer
let name: String! = String(cString: pointer.pointee.ifa_name)
let addr = pointer.pointee.ifa_addr.pointee
guard addr.sa_family == UInt8(AF_LINK) else { return nil }
return dataUsageInfo(from: pointer, name: name)
}
private class func dataUsageInfo(from pointer: UnsafeMutablePointer<ifaddrs>, name: String) -> DataUsageInfo {
var networkData: UnsafeMutablePointer<if_data>?
var dataUsageInfo = DataUsageInfo()
if name.hasPrefix(wifiInterfacePrefix) {
networkData = unsafeBitCast(pointer.pointee.ifa_data, to: UnsafeMutablePointer<if_data>.self)
if let data = networkData {
dataUsageInfo.wifiSent += data.pointee.ifi_obytes
dataUsageInfo.wifiReceived += data.pointee.ifi_ibytes
}
} else if name.hasPrefix(wwanInterfacePrefix) {
networkData = unsafeBitCast(pointer.pointee.ifa_data, to: UnsafeMutablePointer<if_data>.self)
if let data = networkData {
dataUsageInfo.wirelessWanDataSent += data.pointee.ifi_obytes
dataUsageInfo.wirelessWanDataReceived += data.pointee.ifi_ibytes
}
}
return dataUsageInfo
}
}
Une nouvelle version basée sur les versions précédentes, mais adaptée pour Swift4 et Xcode 9
struct DataUsageInfo {
var wifiReceived: UInt32 = 0
var wifiSent: UInt32 = 0
var wirelessWanDataReceived: UInt32 = 0
var wirelessWanDataSent: UInt32 = 0
mutating func updateInfoByAdding(info: DataUsageInfo) {
wifiSent += info.wifiSent
wifiReceived += info.wifiReceived
wirelessWanDataSent += info.wirelessWanDataSent
wirelessWanDataReceived += info.wirelessWanDataReceived
}
}
class DataUsage {
private static let wwanInterfacePrefix = "pdp_ip"
private static let wifiInterfacePrefix = "en"
class func getDataUsage() -> DataUsageInfo {
var interfaceAddresses: UnsafeMutablePointer<ifaddrs>? = nil
var dataUsageInfo = DataUsageInfo()
guard getifaddrs(&interfaceAddresses) == 0 else { return dataUsageInfo }
var pointer = interfaceAddresses
while pointer != nil {
guard let info = getDataUsageInfo(from: pointer!) else {
pointer = pointer!.pointee.ifa_next
continue
}
dataUsageInfo.updateInfoByAdding(info: info)
pointer = pointer!.pointee.ifa_next
}
freeifaddrs(interfaceAddresses)
return dataUsageInfo
}
private class func getDataUsageInfo(from infoPointer: UnsafeMutablePointer<ifaddrs>) -> DataUsageInfo? {
let pointer = infoPointer
let name: String! = String(cString: infoPointer.pointee.ifa_name)
let addr = pointer.pointee.ifa_addr.pointee
guard addr.sa_family == UInt8(AF_LINK) else { return nil }
return dataUsageInfo(from: pointer, name: name)
}
private class func dataUsageInfo(from pointer: UnsafeMutablePointer<ifaddrs>, name: String) -> DataUsageInfo {
var networkData: UnsafeMutablePointer<if_data>? = nil
var dataUsageInfo = DataUsageInfo()
if name.hasPrefix(wifiInterfacePrefix) {
networkData = unsafeBitCast(pointer.pointee.ifa_data, to: UnsafeMutablePointer<if_data>.self)
dataUsageInfo.wifiSent += networkData?.pointee.ifi_obytes ?? 0
dataUsageInfo.wifiReceived += networkData?.pointee.ifi_ibytes ?? 0
} else if name.hasPrefix(wwanInterfacePrefix) {
networkData = unsafeBitCast(pointer.pointee.ifa_data, to: UnsafeMutablePointer<if_data>.self)
dataUsageInfo.wirelessWanDataSent += networkData?.pointee.ifi_obytes ?? 0
dataUsageInfo.wirelessWanDataReceived += networkData?.pointee.ifi_ibytes ?? 0
}
return dataUsageInfo
}
}
Version rapide de la réponse acceptée. Je divise également le code en unités plus petites.
struct DataUsageInfo {
var wifiReceived: UInt32 = 0
var wifiSent: UInt32 = 0
var wirelessWanDataReceived: UInt32 = 0
var wirelessWanDataSent: UInt32 = 0
mutating func updateInfoByAdding(info: DataUsageInfo) {
wifiSent += info.wifiSent
wifiReceived += info.wifiReceived
wirelessWanDataSent += info.wirelessWanDataSent
wirelessWanDataReceived += info.wirelessWanDataReceived
}
}
class DataUsage {
private static let wwanInterfacePrefix = "pdp_ip"
private static let wifiInterfacePrefix = "en"
class func getDataUsage() -> DataUsageInfo {
var interfaceAddresses: UnsafeMutablePointer<ifaddrs> = nil
var dataUsageInfo = DataUsageInfo()
guard getifaddrs(&interfaceAddresses) == 0 else { return dataUsageInfo }
var pointer = interfaceAddresses
while pointer != nil {
guard let info = getDataUsageInfo(from: pointer) else {
pointer = pointer.memory.ifa_next
continue
}
dataUsageInfo.updateInfoByAdding(info)
pointer = pointer.memory.ifa_next
}
freeifaddrs(interfaceAddresses)
return dataUsageInfo
}
private class func getDataUsageInfo(from infoPointer: UnsafeMutablePointer<ifaddrs>) -> DataUsageInfo? {
let pointer = infoPointer
let name: String! = String.fromCString(infoPointer.memory.ifa_name)
let addr = pointer.memory.ifa_addr.memory
guard addr.sa_family == UInt8(AF_LINK) else { return nil }
return dataUsageInfo(from: pointer, name: name)
}
private class func dataUsageInfo(from pointer: UnsafeMutablePointer<ifaddrs>, name: String) -> DataUsageInfo {
var networkData: UnsafeMutablePointer<if_data> = nil
var dataUsageInfo = DataUsageInfo()
if name.hasPrefix(wifiInterfacePrefix) {
networkData = unsafeBitCast(pointer.memory.ifa_data, UnsafeMutablePointer<if_data>.self)
dataUsageInfo.wifiSent += networkData.memory.ifi_obytes
dataUsageInfo.wifiReceived += networkData.memory.ifi_ibytes
} else if name.hasPrefix(wwanInterfacePrefix) {
networkData = unsafeBitCast(pointer.memory.ifa_data, UnsafeMutablePointer<if_data>.self)
dataUsageInfo.wirelessWanDataSent += networkData.memory.ifi_obytes
dataUsageInfo.wirelessWanDataReceived += networkData.memory.ifi_ibytes
}
return dataUsageInfo
}
}
Désolé pour la même réponse encore.
mais j'ai trouvé que UInt32 ne suffisait pas, alors il se bloque quand il est devenu trop gros.
Je viens de changer UInt32 à UInt64 et cela fonctionne bien.
struct DataUsageInfo {
var wifiReceived: UInt64 = 0
var wifiSent: UInt64 = 0
var wirelessWanDataReceived: UInt64 = 0
var wirelessWanDataSent: UInt64 = 0
mutating func updateInfoByAdding(info: DataUsageInfo) {
wifiSent += info.wifiSent
wifiReceived += info.wifiReceived
wirelessWanDataSent += info.wirelessWanDataSent
wirelessWanDataReceived += info.wirelessWanDataReceived
}
}
class DataUsage {
private static let wwanInterfacePrefix = "pdp_ip"
private static let wifiInterfacePrefix = "en"
class func getDataUsage() -> DataUsageInfo {
var interfaceAddresses: UnsafeMutablePointer<ifaddrs>? = nil
var dataUsageInfo = DataUsageInfo()
guard getifaddrs(&interfaceAddresses) == 0 else { return dataUsageInfo }
var pointer = interfaceAddresses
while pointer != nil {
guard let info = getDataUsageInfo(from: pointer!) else {
pointer = pointer!.pointee.ifa_next
continue
}
dataUsageInfo.updateInfoByAdding(info: info)
pointer = pointer!.pointee.ifa_next
}
freeifaddrs(interfaceAddresses)
return dataUsageInfo
}
private class func getDataUsageInfo(from infoPointer: UnsafeMutablePointer<ifaddrs>) -> DataUsageInfo? {
let pointer = infoPointer
let name: String! = String(cString: infoPointer.pointee.ifa_name)
let addr = pointer.pointee.ifa_addr.pointee
guard addr.sa_family == UInt8(AF_LINK) else { return nil }
return dataUsageInfo(from: pointer, name: name)
}
private class func dataUsageInfo(from pointer: UnsafeMutablePointer<ifaddrs>, name: String) -> DataUsageInfo {
var networkData: UnsafeMutablePointer<if_data>? = nil
var dataUsageInfo = DataUsageInfo()
if name.hasPrefix(wifiInterfacePrefix) {
networkData = unsafeBitCast(pointer.pointee.ifa_data, to: UnsafeMutablePointer<if_data>.self)
dataUsageInfo.wifiSent += UInt64(networkData?.pointee.ifi_obytes ?? 0)
dataUsageInfo.wifiReceived += UInt64(networkData?.pointee.ifi_ibytes ?? 0)
} else if name.hasPrefix(wwanInterfacePrefix) {
networkData = unsafeBitCast(pointer.pointee.ifa_data, to: UnsafeMutablePointer<if_data>.self)
dataUsageInfo.wirelessWanDataSent += UInt64(networkData?.pointee.ifi_obytes ?? 0)
dataUsageInfo.wirelessWanDataReceived += UInt64(networkData?.pointee.ifi_ibytes ?? 0)
}
return dataUsageInfo
}
}