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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 |
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| memenv_test.cc | ||
| memenv.cc | ||
| memenv.h | ||