internal static void Put(IntPtr cursor, ref DbValue key, ref DbValue value, CursorPutOption option)
{
int err = _putDelegate(cursor, ref key, ref value, option);
if (err != 0)
{
throw new MdbxException("mdbx_cursor_put", err);
}
}
/// <summary>
/// Store by cursor.
/// This function stores key/data pairs into the database. The cursor is
/// positioned at the new item, or on failure usually near it.
/// </summary>
/// <typeparam name="K"></typeparam>
/// <typeparam name="V"></typeparam>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="option"></param>
public void Put <K, V>(K key, V value, CursorPutOption option = CursorPutOption.Unspecific)
{
ISerializer <K> keySerializer = SerializerRegistry.Get <K>();
ISerializer <V> valueSerializer = SerializerRegistry.Get <V>();
byte[] keyBytes = keySerializer.Serialize(key);
byte[] valueBytes = valueSerializer.Serialize(value);
Put(keyBytes, valueBytes, option);
}
/// <summary>
/// Store by cursor.
/// This function stores key/data pairs into the database. The cursor is
/// positioned at the new item, or on failure usually near it.
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="option"></param>
public void Put(byte[] key, byte[] value, CursorPutOption option)
{
IntPtr keyPtr = IntPtr.Zero;
IntPtr valuePtr = IntPtr.Zero;
if (key != null)
{
keyPtr = Marshal.AllocHGlobal(key.Length);
}
if (value != null)
{
valuePtr = Marshal.AllocHGlobal(key.Length);
}
try
{
if (key != null && key.Length > 0)
{
Marshal.Copy(key, 0, keyPtr, key.Length);
}
if (value != null && value.Length > 0)
{
Marshal.Copy(value, 0, valuePtr, value.Length);
}
DbValue dbKey = new DbValue(keyPtr, key == null ? 0 : key.Length);
DbValue dbValue = new DbValue(valuePtr, value == null ? 0 : value.Length);
Cursor.Put(_cursorPtr, ref dbKey, ref dbValue, option);
}
finally
{
if (keyPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(keyPtr);
}
if (valuePtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(valuePtr);
}
}
}