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BinaryCacheStore::readFile(): Return a shared_ptr to a string

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This allows readFile() to indicate that a file doesn't exist, and
might eliminate some large string copying.
This commit is contained in:
Eelco Dolstra 2016-04-15 15:11:34 +02:00
parent 99851c6f06
commit d1b0909894
11 changed files with 52 additions and 28 deletions
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4
src/libstore/binary-cache-store.hh
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@ -39,7 +39,9 @@ protected:
virtual void upsertFile(const std::string & path, const std::string & data) = 0;
virtual std::string getFile(const std::string & path) = 0;
/* Return the contents of the specified file, or null if it
doesn't exist. */
virtual std::shared_ptr<std::string> getFile(const std::string & path) = 0;
public: