def set(self, key, value):
if self._closed:
raise RuntimeError("db is closed")
if not isinstance(key, bytes) or not isinstance(value, bytes):
raise TypeError("byte string objects are supported")
_key = ffi.new("char[]", key)
_value = ffi.new("char[]", value)
r = lib.sp_set(self._db, _key, ffi.sizeof(_key), _value, ffi.sizeof(_value))
if r != 0:
self._raise_error()
def delete(self, key):
if self._closed:
raise RuntimeError("db is closed")
if not isinstance(key, bytes):
raise TypeError("byte string objects are supported")
_key = ffi.new("char[]", key)
r = lib.sp_delete(self._db, _key, ffi.sizeof(_key))
if r != 0:
self._raise_error()
def get(self, key):
if self._closed:
raise RuntimeError("db is closed")
if not isinstance(key, bytes):
raise TypeError("byte string objects are supported")
_key = ffi.new("char[]", key)
_value = ffi.new("void**")
_value_size = ffi.new("size_t*")
r = lib.sp_get(self._db, _key, ffi.sizeof(_key), _value, _value_size)
if r == -1:
self._raise_error()
elif r == 0:
raise KeyError("%s not found" % key)
value = ffi.string(ffi.cast("char*", _value[0]), _value_size[0])
libc.free(_value[0])
return value
