Inheritance: IEnumerable
示例#1
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 static TransportAddressFactory() {
   _string_to_type = new Hashtable();
   _ta_cache = new Cache(CACHE_SIZE);
 }
示例#2
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 public TimeOutManager() {
   /*
    * Here we set the timeout mechanisms.  There is a default
    * value, but this is now dynamic based on the observed
    * RTT of the network
    */
   //resend the request after 5 seconds by default
   _min_timeout = 5000;
   _global_stats = new TimeStats(_min_timeout, 0.98);
   //Start with 50 sec timeout
   _acked_rtt_stats = new TimeStats(_min_timeout * 10, 0.98);
   _last_check = DateTime.UtcNow;
   _send_stats = new Cache(1000);
   _type_stats = new Cache(100);
   _sync = new object();
 }
示例#3
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  public ReqrepManager(string info, PType prefix) {
    lock( _inst_tab_sync ) {
      _instance_table.Replace(info, this);
    }
    _info = info;
    _prefix = prefix;
#if BRUNET_SIMULATOR
    Random r = Node.SimulatorRandom;
#else
    Random r = new Random();
#endif
    //Don't use negative numbers:
    _req_state_table = new UidGenerator<RequestState>(r, true);
    //Don't use negative numbers:
    _reply_id_table = new UidGenerator<ReplyState>(r, true);

    /**
     * We keep a list of the most recent 1000 replies until they
     * get too old.  If the reply gets older than reptimeout, we
     * remove it
     */
    _reply_cache = new Cache(1000);
    _reply_cache.EvictionEvent += HandleReplyCacheEviction;
    _to_mgr = new TimeOutManager();
  }
示例#4
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 public ReflectionRpcHandler(RpcManager rpc, object handler, bool use_sender) {
   _rpc = rpc;
   _handler = handler;
   _type = _handler.GetType();
   _use_sender = use_sender;
   _sync = new object();
   //Cache the 10 most used methods:
   _method_cache = new Cache(10);
 }
示例#5
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 public RpcManager(ReqrepManager rrm) {
   _sync = new Object();
   _rrman = rrm;
   _method_cache = new Cache(CACHE_SIZE);
   _method_handlers = new Hashtable();
 }
示例#6
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  public ReqrepManager(string info, PType prefix) {
    lock( _inst_tab_sync ) {
      _instance_table.Replace(info, this);
    }
    _info = info;

    _prefix = prefix;
    _req_handler_table = new Hashtable();
    Random r = new Random();
    //Don't use negative numbers:
    _req_state_table = new UidGenerator<RequestState>(r, true);
    //Don't use negative numbers:
    _reply_id_table = new UidGenerator<ReplyState>(r, true);
    _rep_handler_table = new Hashtable();

    /**
     * We keep a list of the most recent 1000 replies until they
     * get too old.  If the reply gets older than reptimeout, we
     * remove it
     */
    _reply_cache = new Cache(1000);
    _reply_cache.EvictionEvent += HandleReplyCacheEviction;
    /*
     * Here we set the timeout mechanisms.  There is a default
     * value, but this is now dynamic based on the observed
     * RTT of the network
     */
    //resend the request after 5 seconds.
    _edge_reqtimeout = new TimeSpan(0,0,0,0,5000);
    _nonedge_reqtimeout = new TimeSpan(0,0,0,0,5000);
    //Start with 50 sec timeout
    _acked_reqtimeout = new TimeSpan(0,0,0,0,50000);
    //Here we track the statistics to improve the timeouts:
    _nonedge_rtt_stats = new TimeStats(_nonedge_reqtimeout.TotalMilliseconds, 0.98);
    _edge_rtt_stats = new TimeStats(_edge_reqtimeout.TotalMilliseconds, 0.98);
    _acked_rtt_stats = new TimeStats(_acked_reqtimeout.TotalMilliseconds, 0.98);
    _last_check = DateTime.UtcNow;
  }
示例#7
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  /**
   * Protected constructor, we want to control ReqrepManager instances
   * running on a node. 
   * @param info some context that we work for
   */
  public ReqrepManager(object info) {
    ReqrepManager existing;
    lock( _inst_tab_sync ) {
      if(_instance_table.TryGetValue(info, out existing) ) {
        throw new Exception("Already an existing ReqrepManager for: " + info.ToString());
      }
      else {
        _instance_table[info] = this;
      }
    }
    _info = info.ToString();

    Random r = new Random();
    //Don't use negative numbers:
    _req_state_table = new UidGenerator<RequestState>(r, true);
    //Don't use negative numbers:
    _reply_id_table = new UidGenerator<ReplyState>(r, true);

    /**
     * We keep a list of the most recent 1000 replies until they
     * get too old.  If the reply gets older than reptimeout, we
     * remove it
     */
    _reply_cache = new Cache(1000);
    _reply_cache.EvictionEvent += HandleReplyCacheEviction;
    _to_mgr = new TimeOutManager();
  }
示例#8
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文件: Cache.cs 项目: pstjuste/brunet
 public void TestEnumeration() {
   const int MAX_SIZE = 100;
   Random r = new Random();
   Cache c = new Cache(MAX_SIZE);
   Hashtable ht = new Hashtable();
   for(int i = 0; i < MAX_SIZE; i++) {
     int k = r.Next();
     int v = r.Next();
     ht[k] = v;
     c[k] = v;
   }
   int enum_count = 0;
   foreach(DictionaryEntry de in c) {
     Assert.IsNotNull( c[de.Key], "Enumeration");
     enum_count++;
   }
   Assert.AreEqual(enum_count, c.Count, "Enumeration count");
   //Remove a bunch at random:
   ArrayList removed = new ArrayList();
   for(int i = 0; i < MAX_SIZE / 2; i++) {
     object k = r.Next(0, MAX_SIZE);
     removed.Add( k );
     c.Remove( k );
   }
   //Make sure they are really gone:
   enum_count = 0;
   foreach(DictionaryEntry de in c) {
     Assert.IsNotNull( c[de.Key], "Enumeration after remove");
     enum_count++;
   }
   Assert.AreEqual(enum_count, c.Count, "Enumeration count after remove");
   foreach(object k in removed) {
     Assert.IsNull(c[k], "removed objects removed");
   }
   //Let's enumerate and removed:
   foreach(DictionaryEntry de in c) {
     c.Remove(de.Key);
     Assert.IsNull( c[de.Key], "Removing with enumeration");
   }
   Assert.AreEqual(0, c.Count, "Removed everything");
 }
示例#9
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文件: Cache.cs 项目: pstjuste/brunet
  public void TestEviction() {
    const int MAX_SIZE = 1000;
    Random r = new Random();
    Cache c = new Cache(MAX_SIZE);
    Hashtable ht = new Hashtable();
    Hashtable ht_evicted = new Hashtable();
    EventHandler eh = delegate(object o, EventArgs args) {
      Cache.EvictionArgs a = (Cache.EvictionArgs)args;
      ht_evicted[a.Key] = a.Value;
    };
    c.EvictionEvent += eh;

    int i = 0;
    for(i = 0; i < 50 * MAX_SIZE; i++) {
      int v = r.Next();
      ht[i] = v;
      c[i] = v;
      int exp_size = Math.Min(i+1, MAX_SIZE);
      Assert.AreEqual(c.Count, exp_size, "Size check");
      Assert.AreEqual(ht[i], c[i], "equivalence check");
      //Keep the zero'th element in the cache:
      object v_0 = c[0];
      Assert.IsNotNull(v_0, "0th element still in the cache");
    }
    Assert.AreEqual(c.Count, MAX_SIZE, "Full cache"); 
    //Now check that everything is either in the Cache or was evicted:
    IDictionaryEnumerator ide = ht.GetEnumerator();
    while(ide.MoveNext()) {
      int key = (int)ide.Key;
      int val = (int)ide.Value;
      object c_val = c[key];
      if( !c.Contains(key) ) {
        Assert.IsNull(c_val, "Evicted entry is null");
        c_val = ht_evicted[key];
        Assert.AreEqual(c_val, val, "Evicted lookup");
      }
      else {
        //Not in the cache:
        Assert.AreEqual(c_val, val, "Cache lookup");
      }
    }
    //Let's remove from the Cache and see if that worked:
    int s0 = c.Count;
    object rv = c.Remove(0);
    Assert.AreEqual( rv, ht[0], "Removed value matches");
    Assert.IsNull(c[0], "Remove really removed");
    Assert.AreEqual( s0 - 1, c.Count, "Removed decreased size");

  }
示例#10
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文件: Cache.cs 项目: pstjuste/brunet
 public void TestRecall() {
   const int MAX_SIZE = 100;
   Random r = new Random();
   Cache c = new Cache(MAX_SIZE);
   Hashtable ht = new Hashtable();
   for(int i = 0; i < MAX_SIZE; i++) {
     int k = r.Next();
     int v = r.Next();
     ht[k] = v;
     c[k] = v;
   }
   IDictionaryEnumerator ide = ht.GetEnumerator();
   while(ide.MoveNext()) {
     int key = (int)ide.Key;
     int val = (int)ide.Value;
     object c_val = c[key];
     Assert.AreEqual(c_val, val, "Test lookup");
   }
 }
示例#11
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文件: Cache.cs 项目: pstjuste/brunet
 public void TestUpdate() {
   Cache c = new Cache(16);
   object entry = new object();
   object first = new object();
   object second = new object();
   c[entry] = first;
   c[entry] = second;
   Assert.IsTrue(c[entry].Equals(second), "Entry equals second");
 }
示例#12
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  public RpcManager(ReqrepManager rrm) {
    _sync = new Object();
    _rrman = rrm;
    _method_cache = new Cache(CACHE_SIZE);
    _method_handlers = new Hashtable();

#if DAVID_ASYNC_INVOKE
    _rpc_command = new BlockingQueue();
    _rpc_thread = new Thread(RpcCommandRun);
    _rpc_thread.IsBackground = true;
    _rpc_thread.Start();
#endif
  }
示例#13
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 static TransportAddressFactory() {
   _string_to_type = new Dictionary<string,TransportAddress.TAType>();
   _ta_cache = new Cache(CACHE_SIZE);
   _ta_factories = new Dictionary<string,Converter<string,TransportAddress>>();
   AddFactoryMethod("tcp", IPTransportAddress.Create);
   AddFactoryMethod("udp", IPTransportAddress.Create);
   AddFactoryMethod("function", IPTransportAddress.Create);
   AddFactoryMethod("tls", IPTransportAddress.Create);
   AddFactoryMethod("tlstest", IPTransportAddress.Create);
   //Here's the odd ball:
   AddFactoryMethod("s", delegate(string s) {
     return new SimulationTransportAddress(s);
   });
 }
示例#14
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 public FragmentingHandler(int max_frags_cached) : base() {
   _fragments = new Cache(max_frags_cached);
   _fragments.EvictionEvent += this.HandleEviction;
   _frag_count = new SCG.Dictionary<Pair<uint, int>, Fragments>();
 }