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Provide default implementation of LinkFile, don't break the build

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Summary: By providing default implementation of LinkFile, we don't break other implementations of Env.

Test Plan: none

Reviewers: rven, dhruba

Reviewed By: dhruba

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D29355
This commit is contained in:
Igor Canadi 2014-11-21 11:05:48 -05:00
parent cd278584c9
commit 7ec71f101c
1 changed files with 3 additions and 2 deletions
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5
include/rocksdb/env.h
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@ -179,8 +179,9 @@ class Env {
const std::string& target) = 0;
// Hard Link file src to target.
virtual Status LinkFile(const std::string& src,
const std::string& target) = 0;
virtual Status LinkFile(const std::string& src, const std::string& target) {
return Status::NotSupported("LinkFile is not supported for this Env");
}
// Lock the specified file. Used to prevent concurrent access to
// the same db by multiple processes. On failure, stores nullptr in