/// <summary>
/// construct a new Computer object
/// </summary>
/// <param name="n">the unique name of the daemon</param>
/// <param name="host">the computer the daemon is running on</param>
/// <param name="rn">the rack the daemon is running on</param>
/// <param name="rack">the scheduling queue associated with the computer's rack</param>
/// <param name="cluster">the global scheduling queue associated with the cluster</param>
/// <param name="pServer">the address of the daemon's http server for process scheduling</param>
/// <param name="fServer">the address of the daemon's http server for file proxying</param>
/// <param name="directory">the daemon's local directory</param>
/// <param name="log">connection to the logging subsystem</param>
public Computer(string n, string host, string rn, ProcessQueue rack, ProcessQueue cluster,
string pServer, string fServer, string directory, ClusterInterface.ILogger log)
{
logger = log;
name = n;
localDirectory = directory;
processServer = pServer;
fileServer = fServer;
computerName = host;
rackName = rn;
localQueue = new ProcessQueue();
rackQueue = rack;
clusterQueue = cluster;
logger.Log("Created computer " + name + " on host " + computerName + ":" + rackName + ":" + localDirectory + ":" + fileServer);
// make the Task that CommandLoop blocks on; when finishWaiter is started it returns null
// causing CommandLoop to exit.
finishWaiter = new TaskCompletionSource <Process>();
childFinishWaiters = new HashSet <TaskCompletionSource <Process> >();
finishWaiter.Task.ContinueWith((t) => Task.Run(() => SetChildFinishWaiters()));
// this is started when the Command Loop exits
exited = new TaskCompletionSource <bool>();
nextTask = 1;
}
public LocalScheduler(ClusterInterface.ILogger l)
{
logger = l;
computers = new Dictionary<string, Computer>();
localities = new Dictionary<string, List<Computer>>();
racks = new Dictionary<string, Rack>();
clusterQueue = new ProcessQueue();
flusher = new Task(() => { });
clusterInterface = new PeloponneseInterface();
dummyCancelComputer = new Computer("dummy for canceling", "nowhere", "no rack", null, null,
"no server", "no server", "no directory", logger);
l.Log("LocalScheduler created");
}
public LocalScheduler(ClusterInterface.ILogger l)
{
logger = l;
computers = new Dictionary <string, Computer>();
localities = new Dictionary <string, List <Computer> >();
racks = new Dictionary <string, Rack>();
clusterQueue = new ProcessQueue();
flusher = new Task(() => { });
clusterInterface = new PeloponneseInterface();
dummyCancelComputer = new Computer("dummy for canceling", "nowhere", "no rack", null, null,
"no server", "no server", "no directory", logger);
l.Log("LocalScheduler created");
}
public Rack()
{
computers = new HashSet <string>();
queue = new ProcessQueue();
}
