relay/streamer: move binlog log reader into relay

D3Hunter commented 3 years ago

What problem does this PR solve?

it's first part of subtask 4 in #2214

no code logic change in this pr, to make review/merge easier

What is changed and how it works?

move binlog log reader into relay
flat small sub packages
rename some structs to avoid conflict

Check List

no code logic change

ti-chi-bot commented 3 years ago

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ti-chi-bot commented 3 years ago

@D3Hunter: PR needs rebase.

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D3Hunter commented 3 years ago

closed, move to ticdc

pingcap / dm