So, I documented what kind of API LMDB exposed, and I stopped on a very interesting one: LMDB lets you create nested write transactions. If you provide a parent write transaction when you create a new one, you can get a new write transaction that applies its set of changes and either commits or aborts, rolling back only the subset of changes it modified. The child transaction can read the parent's changes. The parent transaction is unusable while this only child transaction is alive. I had the idea that what I needed was to be able to create as many read transactions from my write transaction to read, and move the read transactions onto different threads to read my uncommitted changes. Howard (@hyc) and I briefly discussed what could be the API, and he gave me permission to work on this very complex C codebase 😮💨
Российские Х-35 назвали «ракетами с интеллектом»20:52。关于这个话题，搜狗输入法提供了深入分析
https://feedx.site，这一点在手游中也有详细论述
for new_doc in candidate_documents:
Based on the images represented above: