Exemplo n.º 1
0
 private void InvokeCallback(BWContext context)
 {
     // loop through all channels in a context
     for (int i = 0; i < 3; i++)
     {
         IList pendingList = context.pendingRequestArray[i] as IList;
         if (pendingList.Count > 0)
         {
             // loop through all pending requests in a channel
             foreach (TokenRequest request in pendingList)
             {
                 IBWControllable bc = context.GetBWControllable();
                 while (bc != null)
                 {
                     BWContext c = _contextMap[bc] as BWContext;
                     if (c == null)
                     {
                         // context has been unregistered, we should ignore
                         // this callback
                         break;
                     }
                     lock (c)
                     {
                         if (c.bwConfig != null && !ProcessNonblockingRequest(request, c))
                         {
                             break;
                         }
                     }
                     TokenRequestContext requestContext = new TokenRequestContext();
                     requestContext.acquiredToken = request.requestToken;
                     requestContext.bc            = bc;
                     request.acquiredStack.Push(requestContext);
                     bc = bc.GetParentBWControllable();
                 }
                 if (bc == null)
                 {
                     // successfully got the required tokens
                     try
                     {
                         request.callback.Available(context.buckets[request.channel], (long)request.requestToken);
                     }
                     catch (Exception ex)
                     {
                         log.Error("Error calling request's callback", ex);
                     }
                 }
             }
             pendingList.Clear();
         }
     }
 }
Exemplo n.º 2
0
 private void InvokeCallback(BWContext context)
 {
     for (int i = 0; i < 3; i++)
     {
         IList list = context.pendingRequestArray[i] as IList;
         if (list.Count > 0)
         {
             foreach (TokenRequest request in list)
             {
                 IBWControllable bWControllable = context.GetBWControllable();
                 while (bWControllable != null)
                 {
                     BWContext context2 = this._contextMap[bWControllable] as BWContext;
                     if (context2 == null)
                     {
                         break;
                     }
                     lock (context2)
                     {
                         if (!((context2.bwConfig == null) || this.ProcessNonblockingRequest(request, context2)))
                         {
                             break;
                         }
                     }
                     TokenRequestContext context3 = new TokenRequestContext {
                         acquiredToken = request.requestToken,
                         bc            = bWControllable
                     };
                     request.acquiredStack.Push(context3);
                     bWControllable = bWControllable.GetParentBWControllable();
                 }
                 if (bWControllable == null)
                 {
                     try
                     {
                         request.callback.Available(context.buckets[request.channel], (long)request.requestToken);
                     }
                     catch (Exception exception)
                     {
                         log.Error("Error calling request's callback", exception);
                     }
                 }
             }
             list.Clear();
         }
     }
 }
Exemplo n.º 3
0
        public void UpdateBWConfigure(IBWControlContext context)
        {
            if (!(context is BWContext))
            {
                return;
            }
            BWContext       c  = (BWContext)context;
            IBWControllable bc = c.GetBWControllable();

            lock (c) {
                if (bc.BandwidthConfiguration == null)
                {
                    c.bwConfig     = null;
                    c.lastSchedule = -1;
                }
                else
                {
                    long[] oldConfig = c.bwConfig;
                    c.bwConfig = new long[4];
                    for (int i = 0; i < 4; i++)
                    {
                        c.bwConfig[i] = bc.BandwidthConfiguration.GetChannelBandwidth()[i];
                    }
                    if (oldConfig == null)
                    {
                        // Initialize the last schedule timestamp if necessary
                        c.lastSchedule = System.Environment.TickCount;
                        long[] channelInitialBurst = bc.BandwidthConfiguration.GetChannelInitialBurst();
                        // Set the initial value to token resources as "defaultCapacity/2"
                        for (int i = 0; i < 4; i++)
                        {
                            if (channelInitialBurst[i] >= 0)
                            {
                                c.tokenRc[i] = channelInitialBurst[i];
                            }
                            else
                            {
                                c.tokenRc[i] = _defaultCapacity / 2;
                            }
                        }
                    }
                    else
                    {
                        // we have scheduled before, so migration of token is needed
                        if (c.bwConfig[Constants.OverallChannel] >= 0 &&
                            oldConfig[Constants.OverallChannel] < 0)
                        {
                            c.tokenRc[Constants.OverallChannel] +=
                                c.tokenRc[Constants.AudioChannel] +
                                c.tokenRc[Constants.VideoChannel] +
                                c.tokenRc[Constants.DataChannel];
                            for (int i = 0; i < 3; i++)
                            {
                                c.tokenRc[i] = 0;
                            }
                        }
                        else if (c.bwConfig[Constants.OverallChannel] < 0 &&
                                 oldConfig[Constants.OverallChannel] >= 0)
                        {
                            for (int i = 0; i < 3; i++)
                            {
                                if (c.bwConfig[i] >= 0)
                                {
                                    c.tokenRc[i] += c.tokenRc[Constants.OverallChannel];
                                    break;
                                }
                            }
                            c.tokenRc[Constants.OverallChannel] = 0;
                        }
                    }
                }
            }
        }
 private void InvokeCallback(BWContext context)
 {
     // loop through all channels in a context
     for (int i = 0; i < 3; i++)
     {
         IList pendingList = context.pendingRequestArray[i] as IList;
         if (pendingList.Count > 0)
         {
             // loop through all pending requests in a channel
             foreach (TokenRequest request in pendingList)
             {
                 IBWControllable bc = context.GetBWControllable();
                 while (bc != null)
                 {
                     BWContext c = _contextMap[bc] as BWContext;
                     if (c == null)
                     {
                         // context has been unregistered, we should ignore
                         // this callback
                         break;
                     }
                     lock (c)
                     {
                         if (c.bwConfig != null && !ProcessNonblockingRequest(request, c))
                         {
                             break;
                         }
                     }
                     TokenRequestContext requestContext = new TokenRequestContext();
                     requestContext.acquiredToken = request.requestToken;
                     requestContext.bc = bc;
                     request.acquiredStack.Push(requestContext);
                     bc = bc.GetParentBWControllable();
                 }
                 if (bc == null)
                 {
                     // successfully got the required tokens
                     try
                     {
                         request.callback.Available(context.buckets[request.channel], (long)request.requestToken);
                     }
                     catch (Exception ex)
                     {
                         log.Error("Error calling request's callback", ex);
                     }
                 }
             }
             pendingList.Clear();
         }
     }
 }
Exemplo n.º 5
0
 public void UpdateBWConfigure(IBWControlContext context)
 {
     if (context is BWContext)
     {
         BWContext       context2       = (BWContext)context;
         IBWControllable bWControllable = context2.GetBWControllable();
         lock (context2)
         {
             if (bWControllable.BandwidthConfiguration == null)
             {
                 context2.bwConfig     = null;
                 context2.lastSchedule = -1L;
             }
             else
             {
                 int    num;
                 long[] bwConfig = context2.bwConfig;
                 context2.bwConfig = new long[4];
                 for (num = 0; num < 4; num++)
                 {
                     context2.bwConfig[num] = bWControllable.BandwidthConfiguration.GetChannelBandwidth()[num];
                 }
                 if (bwConfig == null)
                 {
                     context2.lastSchedule = Environment.TickCount;
                     long[] channelInitialBurst = bWControllable.BandwidthConfiguration.GetChannelInitialBurst();
                     for (num = 0; num < 4; num++)
                     {
                         if (channelInitialBurst[num] >= 0L)
                         {
                             context2.tokenRc[num] = channelInitialBurst[num];
                         }
                         else
                         {
                             context2.tokenRc[num] = this._defaultCapacity / 2L;
                         }
                     }
                 }
                 else if ((context2.bwConfig[3] >= 0L) && (bwConfig[3] < 0L))
                 {
                     context2.tokenRc[3] += (context2.tokenRc[0] + context2.tokenRc[1]) + context2.tokenRc[2];
                     for (num = 0; num < 3; num++)
                     {
                         context2.tokenRc[num] = 0.0;
                     }
                 }
                 else if ((context2.bwConfig[3] < 0L) && (bwConfig[3] >= 0L))
                 {
                     for (num = 0; num < 3; num++)
                     {
                         if (context2.bwConfig[num] >= 0L)
                         {
                             context2.tokenRc[num] += context2.tokenRc[3];
                             break;
                         }
                     }
                     context2.tokenRc[3] = 0.0;
                 }
             }
         }
     }
 }