public void pingLoop()
{
while (true)
{
List <string> oldView = view;
WaitHandle[] handles = new WaitHandle[numServers];
IAsyncResult[] asyncResults = new IAsyncResult[numServers];
try {
int i = 0;
int[] responses = new int[numServers];
foreach (KeyValuePair <string, IServerService> remoteObjectpair in serverRemoteObjects)
{
ServerService remoteObject = (ServerService)remoteObjectpair.Value;
pingDelegate pingDel = new pingDelegate(remoteObject.Ping);
IAsyncResult ar = pingDel.BeginInvoke(null, null);
asyncResults[i] = ar;
handles[i] = ar.AsyncWaitHandle;
i++;
}
if (!WaitHandle.WaitAll(handles, 300))
{
for (int k = 0; k < numServers; k++)
{
if (handles[k].WaitOne(0) == false)
{
responses[k] = -1;
}
}
}
for (i = 0; i < numServers; i++)
{
try {
if (responses[i] != -1) //responses with -1 already timed out, we don't want to endinvoke them
{
IAsyncResult asyncResult = asyncResults[i];
pingDelegate pingDel = (pingDelegate)((AsyncResult)asyncResult).AsyncDelegate;
responses[i] = pingDel.EndInvoke(asyncResult);
}
}
catch (SocketException) {
responses[i] = -1;
}
catch (NullReferenceException) {
responses[i] = -1;
}
}
lock (view) {
view = new List <string>();
for (int j = 0; j < numServers; j++)
{
if (responses[j] != -1)
{
view.Add(allServers[j]);
}
}
}
}
catch (Exception e) {
Console.WriteLine(e.StackTrace);
}
bool isChanged = false;
if (oldView.Count != view.Count)
{
isChanged = true;
}
foreach (string bla in view)
{
if (!oldView.Contains(bla))
{
isChanged = true;
}
}
if (isChanged)
{
modified = true;
Console.WriteLine("View Changed. View count: " + view.Count);
}
}
}
public void pingLoop()
{
while (true)
{
if (!_server.frozen)
{
List <string> oldView = view;
WaitHandle[] handles = new WaitHandle[numServers];
IAsyncResult[] asyncResults = new IAsyncResult[numServers];
try {
int i = 0;
int[] responses = new int[numServers];
foreach (KeyValuePair <string, IServerService> remoteObjectpair in serverRemoteObjects)
{
ServerService remoteObject = (ServerService)remoteObjectpair.Value;
pingDelegate pingDel = new pingDelegate(remoteObject.Ping);
IAsyncResult ar = pingDel.BeginInvoke(null, null);
asyncResults[i] = ar;
handles[i] = ar.AsyncWaitHandle;
i++;
}
if (!WaitHandle.WaitAll(handles, 300))
{
for (int k = 0; k < numServers; k++)
{
if (handles[k].WaitOne(timeouts[k]) == false)
{
responses[k] = -2;
if (!suspects.Contains(allServers[k])) //timeout e ainda não era suspeito
{
Console.WriteLine("Added " + allServers[k] + " to suspects list");
suspects.Add(allServers[k]);
}
}
}
}
for (i = 0; i < numServers; i++)
{
try {
if (responses[i] != -2) //responses with -2 already timed out, we don't want to endinvoke them
{
IAsyncResult asyncResult = asyncResults[i];
pingDelegate pingDel = (pingDelegate)((AsyncResult)asyncResult).AsyncDelegate;
responses[i] = pingDel.EndInvoke(asyncResult);
}
}
catch (SocketException e) {
responses[i] = -1; // -1 means they are dead
}
catch (NullReferenceException e) {
responses[i] = -1;
}
}
lock (view) {
view = new List <string>();
for (int j = 0; j < numServers; j++)
{
if (responses[j] != -1)
{
view.Add(allServers[j]);
}
if (responses[j] != -1 && responses[j] != -2 && suspects.Contains(allServers[j]))
{
suspects.Remove(allServers[j]);
timeouts[j] += 100;
Console.WriteLine("Increased timeout (" + allServers[j] + " - " + timeouts[j].ToString() + ")");
}
}
}
}
catch (Exception e) {
Console.WriteLine(e.StackTrace);
}
bool isChanged = false;
if (oldView.Count != view.Count)
{
isChanged = true;
}
foreach (string str in view)
{
if (!oldView.Contains(str))
{
isChanged = true;
}
}
if (isChanged)
{
Console.WriteLine("View Changed");
}
}
else
{
Thread.Sleep(100);
}
}
}