/// <summary>
/// Check system parameters for valid ranges and update the global service state accordingly.
/// </summary>
private void UpdateServiceState()
{
var suspendReasons = new List <string>();
// check all system parameters for valid ranges and remember the reason in a string
// if one of them is failing (to report in the log why we're suspended)
if (_phyDisk.HighLoad)
{
suspendReasons.Add("Disk I/O");
}
if (_cpu.HighLoad)
{
suspendReasons.Add("CPU");
}
if (SystemChecks.GetFreeMemory() < _config.MinAvailableMemory)
{
suspendReasons.Add("RAM");
}
var blacklistedProcess = SystemChecks.CheckForBlacklistedProcesses(
_config.BlacklistedProcesses);
if (!string.IsNullOrWhiteSpace(blacklistedProcess))
{
suspendReasons.Add("process '" + blacklistedProcess + "'");
}
// all parameters within valid ranges, so set the state to "Running":
if (suspendReasons.Count == 0)
{
_status.SetSuspended(false, "all parameters in valid ranges");
return;
}
// set state to "Running" if no-one is logged on:
if (SystemChecks.NoUserIsLoggedOn())
{
_status.SetSuspended(false, "no user is currently logged on");
return;
}
// by reaching this point we know the service should be suspended:
_status.SetSuspended(true, string.Join(", ", suspendReasons));
}