I've implemented Apple Archive in the app I'm working on and have implemented lzfse algorithm. The framework is extremely impressive in terms of the speed and compression ratios. I'm using the closure in ArchiveStream.writeDirectoryContents to indicate what the current file is being processed, but there doesn't seem to be a way to pull out progress % on each file. I've seen examples here [Accelerate].(https://developer.apple.com/documentation/accelerate/compressing_and_decompressing_files_with_stream_compression) but these aren't using the Apple Archive Framework... I'd really like to stick with the Apple Archive Framework if possible as it's simple and very fast.
JackBa
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Hello,
I am trying to get network statistics using Swift on macOS. I am attempting to obtain:
total input bytes
total output bytes
total input packets
total output packets
The following code works in the app as far as I can tell so far, but... the for-loop is a hack that I'd like to correct by properly iterating over all the interfaces.
import Foundation
import OSLog
struct NetworkStatisticsData {
var totalInputBytes: UInt64 = 0
var totalOutputBytes: UInt64 = 0
var totalInputPackets: UInt64 = 0
var totalOutputPackets: UInt64 = 0
}
final class NetworkStatistics: Sendable {
private let logger = Logger(subsystem: Bundle.main.bundleIdentifier!,
category: "SwiftNetworkInformation")
func getNetworkStatistics() -> NetworkStatisticsData {
var networkStatisticsData = NetworkStatisticsData()
for i in 1..<24 { // <- this for-loop should be iterating over a list of interfaces. NET_RT_IFLIST2 ?
var keys: [Int32] = [ CTL_NET, PF_LINK, NETLINK_GENERIC, IFMIB_IFDATA, Int32(i), IFDATA_GENERAL ]
var mibData: ifmibdata = ifmibdata()
var mibDataSize: size_t = MemoryLayout<ifmibdata>.size
if sysctl(&keys, u_int(keys.count), &mibData, &mibDataSize, nil, 0) < 0 {
logger.error("sysctl error getting mib data: \(String(describing: strerror(errno)))")
}
networkStatisticsData.totalInputPackets += mibData.ifmd_data.ifi_ipackets
networkStatisticsData.totalOutputPackets += mibData.ifmd_data.ifi_opackets
networkStatisticsData.totalInputBytes += mibData.ifmd_data.ifi_ibytes
networkStatisticsData.totalOutputBytes += mibData.ifmd_data.ifi_obytes
}
return networkStatisticsData
}
}
Any thoughts on how to iterate over all of the network interfaces (maybe using NET_RT_IFLIST2)? When I run ifconfig in the terminal, there are 24 interfaces, hence the reason for 24 in the for-loop.