[PATCH v3 0/6] box: rework functions machinery
Kirill Shcherbatov
kshcherbatov at tarantool.org
Thu Jun 13 17:08:20 MSK 2019
This patchset reworks Tarantool's functions machinery to support
persistent Lua functions and provide an universal way to call any
registered function.
This patchset consists of following conceptual changes:
1. Func updates on alter were simplified: now replace _func tuple is
forbidden and func_new constructor may fail. This makes possible to
define a failable function object constructors.
2. box_lua_call and box_lua_eval were refactored to do nottake call_request
argument and to use input and output port instead. A new msgpack_port allows
to use this abstraction also for a regular memory msgpack.
3. Introduced an abstract function class and func_c and func_lua
implementations that allow to call C and Lua functions correspondingly
with uniform API defined on base func class.
4. Introduced an infrastructure to call functions from Lua. A new box.func
folder exports functions objects that have :call and :drop methods and their
definition.
4. Introduced persistent Lua functions. Such functions are a part of Tarantool
snapshoot so they are available even after restart. The new is_sandboxed
option initializes a new persistent Lua function is a separate 'sandbox':
an isolated environment with strong restrictions: only limited number of
on-board functions are available, no global state is available at all.
Persistent Lua functions is an important step to implement functional indexes
in Tarantool. Only a deterministic, sandboxed, persistent Lua function may
be used as a functional index extractor.
Changes in version 3:
Source code is re-organised to be bit clear and to provide a better function
object abstraction.
http://github.com/tarantool/tarantool/tree/kshch/gh-4182-persistent-lua-functions
https://github.com/tarantool/tarantool/issues/4182
Kirill Shcherbatov (6):
box: rework func cache update machinery
box: rework box_lua_{call, eval} to use input port
box: rework func object as a function frontend
box: export registered functions in box.func folder
box: refactor box_lua_find helper
box: introduce Lua persistent functions
src/box/alter.cc | 111 ++++---
src/box/bootstrap.snap | Bin 4475 -> 4532 bytes
src/box/call.c | 151 ++-------
src/box/call.h | 4 -
src/box/execute.c | 1 +
src/box/func.c | 199 +++++++++--
src/box/func.h | 40 +--
src/box/func_def.c | 25 ++
src/box/func_def.h | 34 +-
src/box/lua/call.c | 621 +++++++++++++++++++++++++++++++----
src/box/lua/call.h | 13 +-
src/box/lua/execute.c | 7 +-
src/box/lua/execute.h | 4 +-
src/box/lua/init.c | 1 +
src/box/lua/misc.cc | 10 +-
src/box/lua/schema.lua | 41 ++-
src/box/lua/upgrade.lua | 25 +-
src/box/port.c | 3 +-
src/box/port.h | 19 +-
src/box/schema.cc | 38 +--
src/box/schema.h | 15 +-
src/box/schema_def.h | 4 +
src/box/session.cc | 11 +-
src/box/session.h | 8 +
src/lib/core/port.h | 15 +-
test/box-py/bootstrap.result | 6 +-
test/box/access_misc.result | 6 +-
test/box/function1.c | 33 ++
test/box/function1.result | 332 +++++++++++++++++++
test/box/function1.test.lua | 115 +++++++
test/box/misc.result | 1 +
31 files changed, 1544 insertions(+), 349 deletions(-)
--
2.21.0
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