public static Localhost Get()
{
if (current != null)
{
return(current);
}
lock (_sync)
{
if (current != null)
{
return(current);
}
var drives = Array.Empty <DriveInfo>();
var networkInterfaces = Array.Empty <NetworkInterface>();
try
{
drives = GetFixedDrives().ToArray();
networkInterfaces = GetActiveNetworkInterfaces().ToArray();
}
catch { }
current = new Localhost(drives, networkInterfaces);
return(current);
}
}
public HostMonitor(
MonitoredHost host,
TimeSpan interval,
Action <IReadOnlyList <MetricData> > reportAction)
{
var localhost = Localhost.Get();
// Coming in 4.5 release
var hostDimension = new Dimension("hostId", host.Id);
/*
*
* // Processor Counters https://technet.microsoft.com/en-us/library/cc938593.aspx
*
* counters.Add(new WindowsMonitor(KnownMetrics.ProcessorUserTime, new[] { hostDimension }, new PerformanceCounter("Processor", "% User Time", "_Total")));
* counters.Add(new WindowsMonitor(KnownMetrics.ProcessorSystemTime, new[] { hostDimension }, new PerformanceCounter("Processor", "% Privileged Time", "_Total")));
*/
/*
* for (int i = 0; i < localhost.Drives.Length; i++)
* {
* var drive = localhost.Drives[i];
*
* var instanceName = drive.Name.Substring(0, 2); // e.g. C:
*
* Dimension[] tags;
*
* if (host.Volumes.Length > 0)
* {
* var volume = host.Volumes[i];
*
* tags = new[] { hostDimension, new Dimension("volumeId", volume.Id) };
* }
* else
* {
* tags = new[] { hostDimension };
* }
*
* // counters.Add(new WindowsMonitor(KnownMetrics.VolumeReadTime, tags, new PerformanceCounter("LogicalDisk", "% Disk Read Time", instanceName)));
* // counters.Add(new WindowsMonitor(KnownMetrics.VolumeWriteTime, tags, new PerformanceCounter("LogicalDisk", "% Disk Write Time", instanceName)));
* // counters.Add(new WindowsMonitor(KnownMetrics.VolumeReadOperations, tags, new PerformanceCounter("LogicalDisk", "Disk Read Bytes/sec", instanceName)));
* // counters.Add(new WindowsMonitor(KnownMetrics.VolumeWriteOperations, tags, new PerformanceCounter("LogicalDisk", "Disk Write Bytes/sec", instanceName)));
*
* monitors.Add(new AbsoluteValueMonitor(MetricNames.VolumeAvailableBytes, tags, () => drive.AvailableFreeSpace));
* monitors.Add(new AbsoluteValueMonitor(MetricNames.VolumeTotalBytes, tags, () => drive.TotalSize));
* }
*/
for (int i = 0; i < localhost.NetworkInterfaces.Length; i++)
{
var nic = localhost.NetworkInterfaces[i];
Dimension[] tags;
var netResource = host.NetworkInterfaces?.FirstOrDefault(ni =>
Enumerable.SequenceEqual(ni.MacAddress.GetAddressBytes(), nic.GetPhysicalAddress().GetAddressBytes())
);
if (netResource == null)
{
continue;
}
if (netResource != null)
{
tags = new[] { hostDimension, new Dimension("interfaceId", netResource.Id) };
}
else
{
tags = new[] { hostDimension };
}
// TODO: Map by MacAddress
monitors.Add(new NetworkInterfaceMonitor(tags, nic));
}
this.interval = interval;
this.reportAction = reportAction;
}
