private bool PutEx(StorageContext context, byte[] key, byte[] value, StorageFlags flags)
{
if (Trigger != TriggerType.Application && Trigger != TriggerType.ApplicationR)
{
return(false);
}
if (key.Length > 1024)
{
return(false);
}
if (context.IsReadOnly)
{
return(false);
}
if (!CheckStorageContext(context))
{
return(false);
}
StorageKey skey = new StorageKey
{
ScriptHash = context.ScriptHash,
Key = key
};
StorageItem item = Snapshot.Storages.GetAndChange(skey, () => new StorageItem());
if (item.IsConstant)
{
return(false);
}
item.Value = value;
item.IsConstant = flags.HasFlag(StorageFlags.Constant);
return(true);
}
private static bool PutEx(ApplicationEngine engine, StorageContext context, byte[] key, byte[] value, StorageFlags flags)
{
if (engine.Trigger != TriggerType.Application)
{
return(false);
}
if (key.Length > MaxStorageKeySize)
{
return(false);
}
if (value.Length > MaxStorageValueSize)
{
return(false);
}
if (context.IsReadOnly)
{
return(false);
}
if (!CheckStorageContext(engine, context))
{
return(false);
}
StorageKey skey = new StorageKey
{
ScriptHash = context.ScriptHash,
Key = key
};
if (engine.Snapshot.Storages.TryGet(skey)?.IsConstant == true)
{
return(false);
}
if (value.Length == 0 && !flags.HasFlag(StorageFlags.Constant))
{
// If put 'value' is empty (and non-const), we remove it (implicit `Storage.Delete`)
engine.Snapshot.Storages.Delete(skey);
}
else
{
StorageItem item = engine.Snapshot.Storages.GetAndChange(skey, () => new StorageItem());
item.Value = value;
item.IsConstant = flags.HasFlag(StorageFlags.Constant);
}
return(true);
}
private bool PutEx(TestStorageContext context, byte[] key, byte[] value, StorageFlags flags)
{
if (key.Length > MaxStorageKeySize)
{
return(false);
}
if (value.Length > MaxStorageValueSize)
{
return(false);
}
if (context.IsReadOnly)
{
return(false);
}
StorageKey skey = new StorageKey
{
ScriptHash = context.ScriptHash,
Key = key
};
if (Storages.TryGetValue(skey, out var item) && item.IsConstant == true)
{
return(false);
}
if (value.Length == 0 && !flags.HasFlag(StorageFlags.Constant))
{
// If put 'value' is empty (and non-const), we remove it (implicit `Storage.Delete`)
Storages.Remove(skey);
}
else
{
item = Storages[skey] = new StorageItem();
item.Value = value;
item.IsConstant = flags.HasFlag(StorageFlags.Constant);
}
return(true);
}
private void PutExInternal(StorageContext context, byte[] key, byte[] value, StorageFlags flags)
{
if (key.Length > MaxStorageKeySize || value.Length > MaxStorageValueSize || context.IsReadOnly)
{
throw new ArgumentException();
}
int newDataSize;
StorageKey skey = new StorageKey
{
Id = context.Id,
Key = key
};
StorageItem item = Snapshot.Storages.GetAndChange(skey);
if (item is null)
{
newDataSize = key.Length + value.Length;
Snapshot.Storages.Add(skey, item = new StorageItem());
}
else
{
if (item.IsConstant)
{
throw new InvalidOperationException();
}
if (value.Length == 0)
{
newDataSize = 1;
}
else if (value.Length <= item.Value.Length)
{
newDataSize = (value.Length - 1) / 4 + 1;
}
else
{
newDataSize = (item.Value.Length - 1) / 4 + 1 + value.Length - item.Value.Length;
}
}
AddGas(newDataSize * StoragePrice);
item.Value = value;
item.IsConstant = flags.HasFlag(StorageFlags.Constant);
}
private static bool PutEx(ApplicationEngine engine, StorageContext context, byte[] key, byte[] value, StorageFlags flags)
{
if (engine.Trigger != TriggerType.Application)
{
return(false);
}
if (key.Length > MaxStorageKeySize)
{
return(false);
}
if (value.Length > MaxStorageValueSize)
{
return(false);
}
if (context.IsReadOnly)
{
return(false);
}
if (!CheckStorageContext(engine, context))
{
return(false);
}
StorageKey skey = new StorageKey
{
ScriptHash = context.ScriptHash,
Key = key
};
StorageItem item = engine.Snapshot.Storages.GetAndChange(skey, () => new StorageItem());
if (item.IsConstant)
{
return(false);
}
item.Value = value;
item.IsConstant = flags.HasFlag(StorageFlags.Constant);
return(true);
}