[Tarantool-patches] [PATCH 00/15] Cord buffer, static alloc, and Lua GC bug for 1.10

[Vladislav Shpilevoy via Tarantool-patches <tarantool-patches@dev.tarantool.org>]

The patchset is a ported fix for 5632 from the master branch.

No big changes except these:

- 1.10 didn't have static_alloc in Lua directly, but still the static buffer
  could be returned indirectly from tt_uuid_str() for example;

- 1.10 didn't have Lua registers, but had some global variables created via
  ffi.new(). For example, in uuid.lua, msgpackffi.lua;

- sio address formatting function was formatted differently.

Nonetheless the commit messages are left intact. They still mention
static_alloc and Lua registers.

Branch: http://github.com/tarantool/tarantool/tree/gerold103/gh-5632-global-buf-crash-1.10
Issue: https://github.com/tarantool/tarantool/issues/5632

Vladislav Shpilevoy (15):
  fio: don't use shared buffer in pread()
  test: don't use IBUF_SHARED in the tests
  tuple: pass global ibuf explicitly where possible
  iconv: take errno before reseting the context
  cord_buf: introduce cord_buf API
  cord_buf: introduce ownership management
  buffer: implement ffi stash
  uuid: replace static_alloc with ffi stash
  uuid: drop tt_uuid_str() from Lua
  uri: replace static_alloc with ffi stash and ibuf
  lua: use lua_pushfstring() instead of tt_sprintf()
  sio: rework sio_strfaddr()
  sio: increase SERVICE_NAME_MAXLEN size
  sio: introduce and use sio_snprintf()
  buffer: remove Lua registers

 changelogs/unreleased/fix-ibuf-static.md   |   7 +
 extra/exports                              |   5 +-
 src/CMakeLists.txt                         |   1 +
 src/box/lua/schema.lua                     |  47 ++++--
 src/box/lua/session.c                      |   7 +-
 src/box/lua/space.cc                       |   6 +-
 src/box/lua/tuple.c                        |  80 +++++-----
 src/box/lua/tuple.lua                      |  14 +-
 src/cord_buf.c                             | 165 +++++++++++++++++++++
 src/cord_buf.h                             |  49 ++++++
 src/lua/buffer.lua                         | 101 ++++++++++++-
 src/lua/fio.lua                            |   3 +-
 src/lua/iconv.lua                          |  27 ++--
 src/lua/init.c                             |   3 -
 src/lua/msgpack.c                          |   6 +-
 src/lua/msgpackffi.lua                     |  46 +++---
 src/lua/socket.lua                         |  14 +-
 src/lua/uri.lua                            |  22 ++-
 src/lua/utf8.c                             |  21 +--
 src/lua/utils.h                            |   1 -
 src/lua/uuid.lua                           |  37 +++--
 src/sio.cc                                 |  67 +++++----
 src/sio.h                                  |  16 +-
 test/app-tap/buffer.test.lua               |  59 ++++++++
 test/app-tap/gh-5632-gc-buf-reuse.test.lua | 151 +++++++++++++++++++
 test/app-tap/module_api.test.lua           |   3 +-
 test/app/fio.result                        | 103 ++++++++-----
 test/app/fio.test.lua                      |  68 +++++----
 test/app/msgpack.result                    |   7 +-
 test/app/msgpack.test.lua                  |   5 +-
 test/app/uuid.result                       |   2 +-
 test/unit/luaT_tuple_new.c                 |   4 -
 32 files changed, 901 insertions(+), 246 deletions(-)
 create mode 100644 changelogs/unreleased/fix-ibuf-static.md
 create mode 100644 src/cord_buf.c
 create mode 100644 src/cord_buf.h
 create mode 100755 test/app-tap/buffer.test.lua
 create mode 100755 test/app-tap/gh-5632-gc-buf-reuse.test.lua

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