Seguimiento/Monitoreo del Uso de Datos de iPhone
He buscado sobre este tema, pero encontré muy pocos detalles que fueron útiles. Con estos detalles he tratado de cocinar un poco de código de la siguiente manera.
Nota: Por favor compare los detalles compartidos en este post con otros posts antes de marcarlo como DUPLICADO, y no solo por el asunto.
- (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];
}
Este código recopila información sobre el uso de Internet de un dispositivo iPhone (y no solo de mi aplicación).
Ahora, si uso Internet a través de WiFi o a través de 3G, obtengo los datos (bytes) solo en ifi_obytes (enviado) y ifi_ibytes (recibido) pero creo que debería obtener el uso de WiFi en ifi_opackets y ifi_ipackets.
También quería agregar que si estoy conectado a una red WiFi, pero no estoy usando Internet, todavía obtengo valor agregado a ifi_obytes y ifi_ibytes.
Puede ser que me equivoque en la implementación o comprensión. Necesito que alguien me ayude.
Editar: En lugar de AF_LINK Intenté AF_INET (sockaddr_in en lugar de sockaddr_dl). Esto bloquea la aplicación.
6 answers
La cosa es que pdp_ip0 es una de las interfaces, todas pdpXXX son interfaces WWAN dedicadas a diferentes funciones, correo de voz, interfaz de red general.
Leí en el foro de Apple que : El sistema operativo no mantiene estadísticas de red proceso por proceso. Como tal, no hay una solución exacta a este problema. Sin embargo, puede obtener estadísticas de red para cada interfaz de red.
En general, en0 es su interfaz Wi-Fi y pdp_ip0 es su interfaz WWAN.
Allí no es una buena manera de obtener información wifi/datos de red celular desde, fecha-hora particular!
La estadística de datos (ifa_data->ifi_obytes e ifa_data->ifi_ibytes) se almacena desde el reinicio del dispositivo anterior.
No se por qué, pero ifi_opackets e ifi_ipackets se muestran solo para lo0 (creo que su interfaz principal ).
Sí. Luego, el dispositivo se conecta a través de WiFi y no usa los valores if_iobytes de Internet porque este método proporciona intercambios de bytes de red y no solo 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)};
}
Soporte mejorado para copiar / pegar !
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2018-02-13 19:36:30
Es importante entender que estos contadores se proporcionan desde el último arranque del dispositivo.
Por lo tanto, para hacer un uso efectivo de ellos, debe acompañar cada muestra con el tiempo de actividad del dispositivo (puede usar mach_absolute_time() - vea this para más información)
Una vez que tenga muestras de contadores + tiempo de actividad, puede tener una mejor heurística en cuanto al uso de los datos...
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2017-05-23 12:02:58
Para agregar a la respuesta aceptada, es importante darse cuenta de que la cantidad de datos mostrados por la interfaz se desborda y se reinicia a 0 después de cada 4 GB, especialmente si está utilizando este código para calcular la diferencia entre dos lecturas. Esto se debe a que ifi_obytes e ifi_ibytes son uint_32 y su valor máximo es 4294967295.
Además, recomiendo usar int sin firmar para las variables que contienen los datos enviados y recibidos. Los INT regulares tienen la mitad del valor máximo de un unsigned integer, por lo que al agregar ifi_obytes, puede causar un desbordamiento.
unsigned int sent = 0;
sent += networkStatisc->ifi_obytes;
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2016-05-02 12:48:41
Arreglé el código fuente anterior a la versión 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
}
}
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2017-05-11 13:30:45
Versión rápida de la respuesta aceptada. También rompo el código en unidades más pequeñas.
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
}
}
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2016-11-20 19:36:44
Una nueva versión basada en versiones anteriores, pero adaptada para Swift4 y 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
}
}
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2018-01-12 19:03:05