chaoyli opened a new pull request #2899: [gutil] import scoped_refptr smart pointer from KUDU URL: https://github.com/apache/incubator-doris/pull/2899 scoped_refptr is used to replace std::shared_ptr, is generally faster and smaller. advantage (1) only requires a single allocation, and ref count is on the same cache line as the object (2) the pointer only requires 8 bytes (since the ref count is within the object) (3) you can manually increase or decrease reference counts when more control is required (4) you can convert from a raw pointer back to a scoped_refptr safely without worrying about double freeing (5) since we control the implementation, we can implement features, such as debug builds that capture the stack trace of every referent to help debug leaks. disadvantage (1) the referred-to object must inherit from RefCounted (2) does not support the weak_ptr use cases
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
