private int getFreePort(bool firstToAccess, string path, IContainerActions containerActions, ref bool unknownState)
{
int portToUse;
portToUse = Utils.MinPort;
try
{
if (!unknownState && File.Exists(path) && firstToAccess)
{
try
{
var portsRemoved = this.recycleUnusedPorts(path);
if (portsRemoved.Any(p => !portAvailable(p)))
{
// We can't wait too long cos we are in the middle of a mutex. If we timeout
// and next time it attempts to use these ports then it will just fail and skip them
Task.WaitAny(containerActions.KillZombieContainersBoundToPorts(portsRemoved),
Task.Delay((int)timeout.TotalMilliseconds / 2));
}
}
catch (IOException) { }
}
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.Message);
unknownState = true;
}
if (unknownState)
{
// Something has gone wrong - pick a diff range of ports far away from the others without reserving
do
{
portToUse += new Random().Next(1, 100) + 100;
} while (!portAvailable(portToUse));
return(portToUse);
}
do
{
try
{
portToUse = this.reserveLowestFreePort(path);
}
catch (IOException) { }
// If portAvailable is false then this can result in us reserving multiple ports.
// This is fine thos because there is something using them so they should be excluded.
} while (!portAvailable(portToUse));
return(portToUse);
}
public UniquePortProvider(IContainerActions containerActions)
{
this.containerActions = containerActions;
}
