public static bool TryRemoveKnownSpell(this Biota biota, int spell, out BiotaPropertiesSpellBook entity, ReaderWriterLockSlim rwLock)
{
rwLock.EnterUpgradeableReadLock();
try
{
entity = biota.BiotaPropertiesSpellBook.FirstOrDefault(x => x.Spell == spell);
if (entity != null)
{
rwLock.EnterWriteLock();
try
{
biota.BiotaPropertiesSpellBook.Remove(entity);
entity.Object = null;
return(true);
}
finally
{
rwLock.ExitWriteLock();
}
}
return(false);
}
finally
{
rwLock.ExitUpgradeableReadLock();
}
}
public static BiotaPropertiesSpellBook GetOrAddKnownSpell(this Biota biota, int spell, ReaderWriterLockSlim rwLock, out bool spellAdded)
{
rwLock.EnterUpgradeableReadLock();
try
{
var entity = biota.BiotaPropertiesSpellBook.FirstOrDefault(x => x.Spell == spell);
if (entity != null)
{
spellAdded = false;
return(entity);
}
rwLock.EnterWriteLock();
try
{
entity = new BiotaPropertiesSpellBook {
ObjectId = biota.Id, Spell = spell, Object = biota
};
biota.BiotaPropertiesSpellBook.Add(entity);
spellAdded = true;
return(entity);
}
finally
{
rwLock.ExitWriteLock();
}
}
finally
{
rwLock.ExitUpgradeableReadLock();
}
}