#1852 cpsv: improve message tracing for headless feature

[Vo Minh Hoang]

In case headless state happen, the Checkpoint Node Director (CPND) deletes un-recoverable checkpoint nodes on PLs. Then it requests CPA to destroy corresponding checkpoint node by using the new message CPA_EVT_ND2A_CKPT_DESTROY.

In case an active SC is up after headless, CPND updates CPD with checkpoint information by usinga new message CPD_EVT_ND2D_CKPT_INFO_UPDATE instead of using CPD_EVT_ND2D_CKPT_CREATE. This is because the CPND will create new ckpt_id for the checkpoint which might be different with the current ckpt id if the CPD_EVT_ND2D_CKPT_CREATE is used.

This enhancement adds trace log for following messages:
CPD_EVT_ND2D_CKPT_INFO_UPDATE
CPND_EVT_D2ND_CKPT_INFO_UPDATE_ACK
CPA_EVT_ND2A_CKPT_DESTROY

[A V Mahesh (AVM)]

changeset: 7695:6e67b301264e
branch: opensaf-5.0.x
parent: 7693:88a1419541a5
user: Hoang Vo hoang.m.vo@dektech.com.au
date: Mon Jun 06 08:32:21 2016 +0530
summary: cpsv: add message tracing for headless feature [#1852]

changeset: 7696:ce2733835d60
tag: tip
parent: 7694:3f85381d1440
user: Hoang Vo hoang.m.vo@dektech.com.au
date: Mon Jun 06 08:32:40 2016 +0530
summary: cpsv: add message tracing for headless feature [#1852]