public async Task CreateReservedSessions()
{
var s = ReserveSessionsCount;
for (var i = 0; i < s; i++)
{
_readonlySessions.Add(await EsentSession.CreateReadOnlySession(MainSession, Waiters));
}
}
public async ValueTask <(IEsentSession session, IDisposable disposable)> GetAvailableSession(bool autoUse)
{
async Task <Nothing> DoDisposeExccessSessions()
{
async Task DoDispose(EsentSession s)
{
try
{
await s.DisposeInternal();
}
catch
{
// Игнорируем ошибки
}
}
List <EsentSession> toDispose = new List <EsentSession>();
lock (Waiters.UsingLock)
{
var allSessions = _readonlySessions.Count;
var freeSessions = _readonlySessions.Where(s => s.UsingsCount == 0).ToArray();
if (allSessions > MaxReserveSessionsCount)
{
toDispose.AddRange(freeSessions.Skip(ReserveSessionsCount));
}
foreach (var s in toDispose)
{
_readonlySessions.Remove(s);
}
}
if (toDispose.Count > 0)
{
var t1 = Task.WhenAll(toDispose.Select(DoDispose));
var t2 = Task.Delay(TimeSpan.FromSeconds(15));
await Task.WhenAny(t1, t2);
}
return(Nothing.Value);
}
lock (Waiters.UsingLock)
{
var freeSessions = _readonlySessions.Where(s => s.UsingsCount == 0).ToArray();
if (freeSessions.Length > 0)
{
EsentSession r;
IDisposable d = null;
if (freeSessions.Length == 1)
{
r = freeSessions[0];
}
else
{
r = freeSessions[_rnd.Next(0, freeSessions.Length)];
}
if (autoUse)
{
r.UsingsCount++;
d = r.CreateUsageDisposable();
}
return(r, d);
}
}
var newSession = await EsentSession.CreateReadOnlySession(MainSession, Waiters);
IDisposable d2 = null;
lock (Waiters.UsingLock)
{
_readonlySessions.Add(newSession);
if (autoUse)
{
newSession.UsingsCount++;
d2 = newSession.CreateUsageDisposable();
}
}
CoreTaskHelper.RunUnawaitedTaskAsync(DoDisposeExccessSessions);
return(newSession, d2);
}