[TS-2126] Avoid unnecessary memory copy in LogHost::write()

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.1.2
• Component/s: Logging
• Assignee: Yunkai Zhang
• Reporter: Yunkai Zhang
• Created: 10/Aug/13 14:40
• Updated: 05/Dec/13 23:51
• Resolved: 12/Aug/13 03:59

Description

Now, in LogHost::write (LogBuffer lb), Another new LogBuffer object will be allocated to copy the content of *lb parameter.

But lb will be deleted by the upper function, LogBufferManager::flush_buffers(), after LogHost::write() return.

Obviously, the copy is unnecessary, and may cause memory fragmentation.

Let's optimize it.