fix(comms/messaging): fix possible deadlock in outbound pipeline #4657
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* development: (72 commits) fix: reinsert transactions from failed block (tari-project#4675) fix: stray clippy error (tari-project#4685) fix(wallet): mark mined_height as null when pending outputs are cancelled (tari-project#4686) chore: updated dependancies (tari-project#4684) fix(p2p): remove DETACH flag usage (tari-project#4682) fix(comms): simplify and remove possibility of deadlock from pipelines and substream close (tari-project#4676) feat(ci): add default CI and FFI testing with custom dispatch (tari-project#4672) chore: remove broken test (tari-project#4678) fix: fix potential race condition between add_block and sync (tari-project#4677) fix deadlock (tari-project#4674) fix: add burn funds command to console wallet (see issue tari-project#4547) (tari-project#4655) v0.38.3 fix: fee estimate (tari-project#4656) fix(comms/messaging): fix possible deadlock in outbound pipeline (tari-project#4657) fix: replace Luhn checksum with DammSum (tari-project#4639) fix(core/sync): handle deadline timeouts by changing peer (tari-project#4649) fix(ci): libtor build on Ubuntu (tari-project#4644) chore: fix log (tari-project#4634) v0.38.2 fix(comms/rpc): detect early close in all cases (tari-project#4647) ...
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Description
Motivation and Context
The outbound pipeline could deadlock when all pipeline workers are busy, and the outbound sink service is full, causing the pipeline to wait for both a free executor slot and a free slot to send on the channel
How Has This Been Tested?
Memorynet, Manually: wallet stress tests (2 x wallets, 2 x base nodes), checked SAF message exchange