[MESOS-9110] Add move support to the Resources / Resource_ wrappers.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.7.0
• Labels: mesosphere performance
• Target Version/s: 1.7.0
• Epic Link: Allocator performance improvement.
• Sprint: Mesosphere Sprint 2018-25, Mesosphere Sprint 2018-26
• Story Points: 3
• Assignee: Meng Zhu
• Reporter: Benjamin Mahler
• Shepherd: Benjamin Mahler
• Created: 24/Jul/18 19:05
• Updated: 07/Aug/18 19:46
• Resolved: 07/Aug/18 19:46

Description

Currently, the Resources / Resource_ wrappers do not have move support. Since copying resources are rather expensive (especially when there's large ports ranges or metadata like reservations / labels), we should add move support to reduce copying automatically where possible:

• Constructors for both Resources and Resource_
• +, +=, addition operations: with addition we sometimes need to add the resource to the vector in which case we can move if taking an rvalue