fix(bitswap.decision.Engine) send only the freshest messages #601
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| close(oneTimeUse) | ||
| return // ctx cancelled | ||
| } | ||
| oneTimeUse <- *envelope // buffered. won't block |
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personally, I would make the oneTimeUse be a chan *Envelope just to avoid a dereference, looks cleaner that way IMO
added 2 commits
January 19, 2015 03:07
Before, the engine worker would pop a task and block on send to the bitswap worker even if the bitswap worker wasn't to receive. Since the task could have been invalidated during this blocking send, a small number of stale (already acquired) blocks would be send to partners. Now, tasks are only popped off of the queue when bitswap is ready to send them over the wire. This is accomplished by removing the outboxChanBuffer and implementing a two-phase communication sequence.
btc
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This LGTM, but deferring to @whyrusleeping |
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This LGTM too. |
btc
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Jan 20, 2015
…ness fix(bitswap.decision.Engine) send only the freshest messages
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thanks guys |
ariescodescream
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Oct 23, 2021
* rt refresh refactor
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Bitswap prioritizes sending of blocks using a PQ. A decision engine worker
pops tasks off the queue and gives bitswap packaged messages to be sent
to partners.
Before, the engine worker would pop a task and block on send to the
bitswap worker even if the bitswap worker wasn't to receive. Since the
task could have been invalidated during that blocking send, a small
number of stale (already acquired) blocks were sent to partners.
Now, tasks are only popped off of the queue when bitswap is ready to
send them over the wire. This is accomplished by removing the
outboxChanBuffer and implementing a two-phase communication sequence.