leveldb_base

提供基本的ttl测试用例

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cmumford dd906262fd Make InMemoryEnv more consistent with filesystem based Env's. Env's (like the POSIX Env) which use an actual filesystem behave differently than InMemoryEnv with regards to writing data to a currently open file. InMemoryEnv::NewWritableFile would previously delete that file, if it was open, before creating a new file so any previously open file would be unlinked. This change truncates an open file so that subsequent reads will read that new data. This should have no impact on leveldb as it never has the same file open for both read and write access. This change is only being made for tests (specifically a future change to corruption_test) to allow them to be decoupled from the underlying platform and allow them to use an Env. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=237858231		pirms 6 gadiem
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memenv	Make InMemoryEnv more consistent with filesystem based Env's.	删除	pirms 6 gadiem

cmumford dd906262fd Make InMemoryEnv more consistent with filesystem based Env's.

Env's (like the POSIX Env) which use an actual filesystem behave
differently than InMemoryEnv with regards to writing data to a currently
open file.

InMemoryEnv::NewWritableFile would previously delete that file,
if it was open, before creating a new file so any previously
open file would be unlinked. This change truncates an open file
so that subsequent reads will read that new data.

This should have no impact on leveldb as it never has the same
file open for both read and write access. This change is only
being made for tests (specifically a future change to corruption_test)
to allow them to be decoupled from the underlying platform and
allow them to use an Env.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=237858231

pirms 6 gadiem

memenv

Make InMemoryEnv more consistent with filesystem based Env's.

删除

pirms 6 gadiem