Example #1
0
        public List <EventLogRecord> Retrieve()
        {
            List <EventLogRecord> records   = new List <EventLogRecord>();
            WMIRetrieverOptions   options   = new WMIRetrieverOptions();
            WMIRetriever          retriever = new WMIRetriever(Context, options);

            Stopwatch watch = Stopwatch.StartNew();

            WMIRetriever.RetrievalContext retrieval_context = retriever.Retrieve(null);
            long retrieval = watch.ElapsedMilliseconds;

            watch.Restart();
            if (retrieval_context != null)
            {
                lock (retrieval_context.RetrievedData)
                {
                    retrieval_context.RetrievedData.ForEach(r =>
                    {
                        try
                        {
                            records.Add(new EventLogRecord(r));
                        }
                        catch (Exception)
                        {
                        }
                    });
                }
            }

            //ApplicationEventLog log = new ApplicationEventLog();
            //log.LogInformation($"GenericEventLogCollector: retrieval took {retrieval} ms and building list took {watch.ElapsedMilliseconds} ms for {records.Count} records");

            return(records);
        }
Example #2
0
        protected virtual void OnAcquireDelegate(OnProperty on_property)
        {
            WMIRetriever retriever = new WMIRetriever(WmiContext, RetrieverOptions);

            WMIRetriever.RetrievalContext retrieval_context = retriever.Retrieve(m_log);

            if (retrieval_context != null)
            {
                retrieval_context.RetrievedData.ForEach(r => on_property(r));
            }
        }
Example #3
0
        public override CollectedData OnAcquire()
        {
            // The number of cores will be different for each of the devices that we monitor, so we have to get this
            // inside each RunningProcessesData object, not globally. But at least it won't change so we can just get it once.
            if (m_cores == 0)
            {
                WMIRetriever retriever = new WMIRetriever(new WMIContext("Win32_Processor", "NumberOfCores", WmiContext.RemoteInfo), new WMIRetrieverOptions());
                WMIRetriever.RetrievalContext retrieval_context = retriever.Retrieve(null);

                if (retrieval_context != null && retrieval_context.RetrievedData.Count > 0)
                {
                    Dictionary <string, object> r = retrieval_context.RetrievedData[0];
                    uint.TryParse(r["NumberOfCores"].ToString(), out m_cores);
                }
            }

            if (m_cores == 0)
            {
                throw new Exception("Unable to determine the # of cores on the machine");
            }

            Dictionary <string, Process> collected_data = new Dictionary <string, Process>();

            // We do this twice...I found that sometimes the first time we'd try and get the data we'd get nothing,
            // but the second attempt would work. Go figure.
            OnAcquireDelegate(dict => { });
            OnAcquireDelegate(
                dict =>
            {
                string name = dict["Name"].ToString();
                string percent_processor_time = dict["PercentProcessorTime"].ToString();
                string working_set            = dict["WorkingSet"].ToString();
                string working_set_private    = dict["WorkingSetPrivate"].ToString();
                string pool_nonpaged_bytes    = dict["PoolNonpagedBytes"].ToString();
                string pool_paged_bytes       = dict["PoolPagedBytes"].ToString();
                string private_bytes          = dict["PrivateBytes"].ToString();

                if (!ulong.TryParse(percent_processor_time, out ulong cpu) ||
                    !ulong.TryParse(working_set, out ulong set) ||
                    !ulong.TryParse(working_set_private, out ulong set_private) ||
                    !ulong.TryParse(pool_nonpaged_bytes, out ulong pool_nonpaged) ||
                    !ulong.TryParse(pool_paged_bytes, out ulong pool_paged) ||
                    !ulong.TryParse(private_bytes, out ulong priv) ||
                    string.Compare(name, "_Total", true) == 0 ||
                    string.Compare(name, "Idle", true) == 0)
                {
                    return;
                }

                // Sometimes an app will have multiple parts to it. For example,
                // Chrome will often report chrome, chrome#1, chrome#2, chrome#3, etc.
                // This is to combine all of those together into a single 'chrome' report.
                // We sum up the percentages, which I think is OK.
                Match m = m_process_suffix.Match(name);
                if (m.Success)
                {
                    name = m.Groups[1].Value;

                    if (collected_data.TryGetValue(name, out Process p))
                    {
                        p.Add(cpu, set, set_private, pool_nonpaged, pool_paged, priv);
                    }
                    else
                    {
                        collected_data[name] = new Process(name, cpu, set, set_private, pool_nonpaged, pool_paged, priv);
                    }
                }
                else
                {
                    collected_data[name] = new Process(name, cpu, set, set_private, pool_nonpaged, pool_paged, priv);
                }
            }
                );

            // Package the process information into a single Data object that contains a double-dictionary. The dictionary will contain
            // a mapping from process name to process information, and the process information is itself a dictionary mapping a string
            // ("Memory", "CPU") to the number representing that.
            GenericDictionaryData <Process> d = new GenericDictionaryData <Process>(Context);

            foreach (KeyValuePair <string, Process> process in collected_data)
            {
                Process p = process.Value;

                // The percentage is based on the capacity of a single core, so we have to divide by the # of cores
                // to get the overall capacity.
                ulong percent = (ulong)((double)p.CPUNum / (double)m_cores + 0.5f);
                p.CPUNum = percent;

                d.Data[p.Name] = p;
            }

            return(new CollectedData(Context, d.Data.Count > 0, d));
        }