tarantool / tarantool / 24242171750

88%

Build Type

push

github

Committed by locker

Commit Message

iproto: route call requests to application threads

Now, if a function is exported with `box.iproto.export()` on any thread
(tx or app), IPROTO threads will route `IPROTO_CALL` requests with
unspecified target thread id only to those threads where this function
was exported. Requests to call a function that haven't been exported on
any thread are always routed to the tx thread.

The implementation is trivial: `box.iproto.export()` now sends a message
to each IPROTO thread that instructs it to add the exported function
name to the thread-local hash table; the IPROTO request handler checks
the hash table and if it finds the function in there, it choses the
target thread randomly among all serving threads where this function
was exported. Note that we have to take into account the fact that
`box.iproto.export()` may be called before `box.cfg()`, when IPROTO is
unavailable yet. In this case we postpone function registration in
IPROTO until `box.cfg()` is completed.

Closes #12312

NO_DOC=unreleased
NO_CHANGELOG=unreleased

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70656 of 118927 branches covered (59.41%)

70 of 70 new or added lines in 2 files covered. (100.0%)

84 existing lines in 11 files now uncovered.

106298 of 121235 relevant lines covered (87.68%)

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