[DISPATCH-1379] Message receive performance improvements

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.0
• Fix Version/s: 1.9.0
• Component/s: Router Node
• Assignee: Charles E. Rolke
• Reporter: Charles E. Rolke
• Created: 01/Jul/19 11:59
• Updated: 19/Sep/19 21:04
• Resolved: 09/Sep/19 21:30

Description

Code inspection reveals three function calls per message that may be eliminated and a buffer free that could be executed outside of holding the content lock.

• Message allocator initializes object in memory ascending order
  Despite the size of the code, setting the required fields to zero directly is faster that calling ZERO.
• Eliminate redundant calls to pn_link_get_context
• Free empty pending buffer outside of content lock