internal bool AppendKeyValue(string Key, byte[] data)
{
byte[] keyData = Encoding.UTF8.GetBytes(Key);
int res = Libunqlite.unqlite_kv_append(DBHandle, keyData, keyData.Length, data, (UInt64)data.Length);
return(res == 0);
}
internal bool Open(string fileName, Unqlite_Open iMode)
{
IntPtr handler = IntPtr.Zero;
int res = Libunqlite.unqlite_open(out handler, fileName, (int)iMode);
DBHandle = handler;
return(res == 0);
}
internal bool SaveKeyValue(string Key, string Value)
{
byte[] keyData = Encoding.UTF8.GetBytes(Key);
byte[] data = Encoding.UTF8.GetBytes(Value);
int res = Libunqlite.unqlite_kv_store(DBHandle, keyData, keyData.Length, data, (UInt64)data.Length);
return(res == 0);
}
internal void GetCursorValue(IntPtr cursor, Action <string> action)
{
Libunqlite.unqlite_kv_cursor_data_callback(cursor,
(dataPointer, dataLen, pUserData) =>
{
string value = Marshal.PtrToStringAnsi(dataPointer, (int)dataLen);
action(value);
return(0);
}, null);
}
internal void GetCursorValue(IntPtr cursor, Action <byte[]> action)
{
Libunqlite.unqlite_kv_cursor_data_callback(cursor,
(dataPointer, dataLen, pUserData) =>
{
byte[] buffer = new byte[dataLen];
Marshal.Copy(dataPointer, buffer, 0, (int)dataLen);
action(buffer);
return(0);
}, null);
}
internal void GetKeyBinaryValue(string Key, Action <byte[]> action)
{
byte[] keyData = Encoding.UTF8.GetBytes(Key);
Libunqlite.unqlite_kv_fetch_callback(DBHandle, keyData, keyData.Length,
(dataPointer, dataLen, pUserData) =>
{
byte[] buffer = new byte[dataLen];
Marshal.Copy(dataPointer, buffer, 0, (int)dataLen);
action(buffer);
return(0);
}, null);
}
internal void GetKeyValue(string Key, Action <string> action)
{
;
byte[] keyData = Encoding.UTF8.GetBytes(Key);
Libunqlite.unqlite_kv_fetch_callback(DBHandle, keyData, keyData.Length,
(dataPointer, dataLen, pUserData) =>
{
string value = Marshal.PtrToStringAnsi(dataPointer, (int)dataLen);
action(value);
return(0);
}, null);
}
internal byte[] KV_GetCurrentValue(IntPtr cursor)
{
byte[] value = null;
UInt64 valueLength = 0;
int res = Libunqlite.unqlite_kv_cursor_data(cursor, null, out valueLength);
if (res == 0)
{
value = new byte[valueLength];
Libunqlite.unqlite_kv_cursor_data(cursor, value, out valueLength);
}
return(value);
}
internal byte[] KV_GetCurrentKey(IntPtr cursor)
{
byte[] value = null;
int keyLength = 0;
int res = Libunqlite.unqlite_kv_cursor_key(cursor, null, out keyLength);
if (res == 0)
{
value = new byte[keyLength];
Libunqlite.unqlite_kv_cursor_key(cursor, value, out keyLength);
}
return(value);
}
internal byte[] GetKeyBinaryValue(string Key)
{
byte[] value = null;
UInt64 valueLength = 0;
byte[] keyData = Encoding.UTF8.GetBytes(Key);
int res = Libunqlite.unqlite_kv_fetch(DBHandle, keyData, keyData.Length, null, out valueLength);
if (res == 0)
{
value = new byte[valueLength];
Libunqlite.unqlite_kv_fetch(DBHandle, keyData, keyData.Length, value, out valueLength);
}
if (value != null)
{
return(value);
}
else
{
return(null);
}
}
internal bool InitKVCursor(out IntPtr cursor)
{
int res = Libunqlite.unqlite_kv_cursor_init(DBHandle, out cursor);
return(res == 0);
}
internal void Close()
{
Libunqlite.unqlite_close(DBHandle);
}
internal bool DeleteEntry(IntPtr cursor)
{
int res = Libunqlite.unqlite_kv_cursor_delete_entry(cursor);
return(res == 0);
}
internal bool KVMoveToLastEntry(IntPtr cursor)
{
int res = Libunqlite.unqlite_kv_cursor_last_entry(cursor);
return(res == 0);
}
internal void SeekKey(IntPtr cursor, string key, Unqlite_Cursor_Seek seekMode)
{
byte[] keyBytes = Encoding.ASCII.GetBytes(key);
Libunqlite.unqlite_kv_cursor_seek(cursor, keyBytes, keyBytes.Length, (int)seekMode);
}
internal void ReleaseCursor(IntPtr cursor)
{
Libunqlite.unqlite_kv_cursor_release(DBHandle, cursor);
}
internal bool KV_ValidEntry(IntPtr cursor)
{
int res = Libunqlite.unqlite_kv_cursor_valid_entry(cursor);
return(res == 1);
}
internal void KV_PrevEntry(IntPtr cursor)
{
Libunqlite.unqlite_kv_cursor_prev_entry(cursor);
}
internal void KV_NextEntry(IntPtr cursor)
{
Libunqlite.unqlite_kv_cursor_next_entry(cursor);
}
