WebConnectionGroup GetConnectionGroup(string name)
{
if (name == null)
{
name = "";
}
/*
* Optimization:
*
* In the vast majority of cases, we only have one single WebConnectionGroup per ServicePoint, so we
* don't need to allocate a dictionary.
*
*/
WebConnectionGroup group;
if (groups != null && groups.TryGetValue(name, out group))
{
return(group);
}
group = new WebConnectionGroup(this, name);
group.ConnectionClosed += (s, e) => currentConnections--;
if (groups == null)
{
groups = new Dictionary <string, WebConnectionGroup> ();
}
groups.Add(name, group);
return(group);
}
void RemoveConnectionGroup(WebConnectionGroup group)
{
if (groups == null || groups.Count == 0)
{
// No more connection groups left.
if (group != firstGroup)
{
throw new InvalidOperationException();
}
else
{
firstGroup = null;
}
return;
}
if (group == firstGroup)
{
// Steal one entry from the dictionary.
var en = groups.GetEnumerator();
en.MoveNext();
firstGroup = en.Current.Value;
groups.Remove(en.Current.Key);
}
else
{
groups.Remove(group.Name);
}
}
public WebConnection(WebConnectionGroup group, ServicePoint sPoint)
{
this.sPoint = sPoint;
buffer = new byte [4096];
readState = ReadState.None;
Data = new WebConnectionData();
initConn = new WaitCallback(InitConnection);
abortHandler = new EventHandler(Abort);
queue = group.Queue;
}
internal EventHandler SendRequest(HttpWebRequest request, string groupName)
{
WebConnection cnc;
lock (locker) {
WebConnectionGroup cncGroup = GetConnectionGroup(groupName);
cnc = cncGroup.GetConnection(request);
}
return(cnc.SendRequest(request));
}
public WebConnection(WebConnectionGroup group, ServicePoint sPoint)
{
this.sPoint = sPoint;
this.buffer = new byte[4096];
this.readState = ReadState.None;
this.Data = new WebConnectionData();
this.initConn = new WaitCallback(this.InitConnection);
this.queue = group.Queue;
this.abortHelper = new WebConnection.AbortHelper();
this.abortHelper.Connection = this;
this.abortHandler = new EventHandler(this.abortHelper.Abort);
}
internal EventHandler SendRequest(HttpWebRequest request, string groupName)
{
object obj = this.locker;
WebConnection connection;
lock (obj)
{
WebConnectionGroup connectionGroup = this.GetConnectionGroup(groupName);
connection = connectionGroup.GetConnection(request);
}
return(connection.SendRequest(request));
}
public bool CloseConnectionGroup(string connectionGroupName)
{
lock (this) {
WebConnectionGroup cncGroup = GetConnectionGroup(connectionGroupName);
if (cncGroup != null)
{
cncGroup.Close();
return(true);
}
}
return(false);
}
public WebConnection(WebConnectionGroup group, ServicePoint sPoint)
{
this.sPoint = sPoint;
buffer = new byte [4096];
Data = new WebConnectionData();
initConn = new WaitCallback(state => {
try {
InitConnection(state);
} catch {}
});
queue = group.Queue;
abortHelper = new AbortHelper();
abortHelper.Connection = this;
abortHandler = new EventHandler(abortHelper.Abort);
}
/// <summary>Removes the specified connection group from this <see cref="T:System.Net.ServicePoint" /> object.</summary>
/// <returns>A <see cref="T:System.Boolean" /> value that indicates whether the connection group was closed.</returns>
/// <param name="connectionGroupName">The name of the connection group that contains the connections to close and remove from this service point. </param>
public bool CloseConnectionGroup(string connectionGroupName)
{
object obj = this.locker;
lock (obj)
{
WebConnectionGroup connectionGroup = this.GetConnectionGroup(connectionGroupName);
if (connectionGroup != null)
{
connectionGroup.Close();
return(true);
}
}
return(false);
}
private WebConnectionGroup GetConnectionGroup(string name)
{
if (name == null)
{
name = string.Empty;
}
WebConnectionGroup webConnectionGroup = this.Groups[name] as WebConnectionGroup;
if (webConnectionGroup != null)
{
return(webConnectionGroup);
}
webConnectionGroup = new WebConnectionGroup(this, name);
this.Groups[name] = webConnectionGroup;
return(webConnectionGroup);
}
WebConnectionGroup GetConnectionGroup(string name)
{
if (name == null)
{
name = "";
}
WebConnectionGroup group = Groups [name] as WebConnectionGroup;
if (group != null)
{
return(group);
}
group = new WebConnectionGroup(this, name);
Groups [name] = group;
return(group);
}
private WebConnection CreateOrReuseConnection(HttpWebRequest request)
{
int num = this.connections.Count;
WebConnection webConnection;
for (int i = 0; i < num; i++)
{
WeakReference weakReference = this.connections[i] as WeakReference;
webConnection = (weakReference.Target as WebConnection);
if (webConnection == null)
{
this.connections.RemoveAt(i);
num--;
i--;
}
else if (!webConnection.Busy)
{
WebConnectionGroup.PrepareSharingNtlm(webConnection, request);
return(webConnection);
}
}
if (this.sPoint.ConnectionLimit > num)
{
webConnection = new WebConnection(this, this.sPoint);
this.connections.Add(new WeakReference(webConnection));
return(webConnection);
}
if (this.rnd == null)
{
this.rnd = new Random();
}
int index = (num <= 1) ? 0 : this.rnd.Next(0, num - 1);
WeakReference weakReference2 = (WeakReference)this.connections[index];
webConnection = (weakReference2.Target as WebConnection);
if (webConnection == null)
{
webConnection = new WebConnection(this, this.sPoint);
this.connections.RemoveAt(index);
this.connections.Add(new WeakReference(webConnection));
}
return(webConnection);
}
public bool CloseConnectionGroup(string connectionGroupName)
{
WebConnectionGroup cncGroup = null;
lock (this) {
cncGroup = GetConnectionGroup(connectionGroupName);
if (cncGroup != null)
{
RemoveConnectionGroup(cncGroup);
}
}
// WebConnectionGroup.Close() must *not* be called inside the lock
if (cncGroup != null)
{
cncGroup.Close();
return(true);
}
return(false);
}
void RemoveConnectionGroup (WebConnectionGroup group)
{
if (groups == null || groups.Count == 0)
throw new InvalidOperationException ();
groups.Remove (group.Name);
}
WebConnectionGroup GetConnectionGroup (string name)
{
if (name == null)
name = "";
/*
* Optimization:
*
* In the vast majority of cases, we only have one single WebConnectionGroup per ServicePoint, so we
* don't need to allocate a dictionary.
*
*/
WebConnectionGroup group;
if (groups != null && groups.TryGetValue (name, out group))
return group;
group = new WebConnectionGroup (this, name);
group.ConnectionClosed += (s, e) => currentConnections--;
if (groups == null)
groups = new Dictionary<string, WebConnectionGroup> ();
groups.Add (name, group);
return group;
}
internal bool CheckAvailableForRecycling(out DateTime outIdleSince)
{
outIdleSince = DateTime.MinValue;
TimeSpan idleTimeSpan;
WebConnectionGroup singleGroup, singleRemove = null;
List <WebConnectionGroup> groupList = null, removeList = null;
lock (this) {
if (firstGroup == null)
{
idleSince = DateTime.MinValue;
return(true);
}
idleTimeSpan = TimeSpan.FromMilliseconds(maxIdleTime);
/*
* WebConnectionGroup.TryRecycle() must run outside the lock, so we need to
* copy the group dictionary if it exists.
*
* In most cases, we only have a single connection group, so we can simply store
* that in a local variable instead of copying a collection.
*
*/
singleGroup = firstGroup;
if (groups != null)
{
groupList = new List <WebConnectionGroup> (groups.Values);
}
}
if (singleGroup.TryRecycle(idleTimeSpan, ref outIdleSince))
{
singleRemove = singleGroup;
}
if (groupList != null)
{
foreach (var group in groupList)
{
if (!group.TryRecycle(idleTimeSpan, ref outIdleSince))
{
continue;
}
if (removeList == null)
{
removeList = new List <WebConnectionGroup> ();
}
removeList.Add(group);
}
}
lock (this) {
idleSince = outIdleSince;
if (singleRemove != null)
{
RemoveConnectionGroup(singleRemove);
}
if (removeList != null)
{
foreach (var group in removeList)
{
RemoveConnectionGroup(group);
}
}
if (groups != null && groups.Count == 0)
{
groups = null;
}
if (firstGroup == null)
{
idleTimer.Dispose();
idleTimer = null;
return(true);
}
return(false);
}
}
WebConnectionGroup GetConnectionGroup (string name)
{
if (name == null)
name = "";
WebConnectionGroup group = Groups [name] as WebConnectionGroup;
if (group != null)
return group;
group = new WebConnectionGroup (this, name);
Groups [name] = group;
return group;
}
public ConnectionState (WebConnectionGroup group)
{
Group = group;
idleSince = DateTime.UtcNow;
Connection = new WebConnection (this, group.sPoint);
}
public WebConnection (WebConnectionGroup group, ServicePoint sPoint)
{
this.sPoint = sPoint;
buffer = new byte [4096];
readState = ReadState.None;
Data = new WebConnectionData ();
initConn = new WaitCallback (state => {
try {
InitConnection (state);
} catch {}
});
queue = group.Queue;
abortHelper = new AbortHelper ();
abortHelper.Connection = this;
abortHandler = new EventHandler (abortHelper.Abort);
}
public ConnectionState(WebConnectionGroup group)
{
Group = group;
idleSince = DateTime.UtcNow;
Connection = new WebConnection(this, group.sPoint);
}