git: hammer2 hammer2 - More work on userland hammer2 msg infrastructure

[Matthew Dillon]

commit 1b195a982651cc65fe202f626320cf1368df1422
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Thu Jul 5 22:36:01 2012 -0700

    hammer2 - More work on userland hammer2 msg infrastructure
    
    * When a link error occurs generate a LNK_ERROR message for each transaction
      before setting the iocom ERROR flag and returning the final
      non-transactional LNK_ERROR.
    
    * Processing command switches switch on the original transactional head.cmd
      instead of the current msg->any.head.cmd, which allows the use of mixed
      cmd's in a transactional message stream.
    
      The target function then handles the actual msg->any.head.cmd.  Thus we
      can consolidate all sub-commands used within a transaction into the target
      function, which greatly improves code quality.
    
      This allows us to send LNK_ERROR messages over active transactions.
    
    * Print the pfs_id and label for the received LNK_SPAN message the kernel
      sends to the userland hammer2 service process, and verify LNK_ERROR
      processing for connection terminations.  Yup, it works.

Summary of changes:
 sbin/hammer2/cmd_service.c |   86 ++++++++++++++++++++++++++++++++++++++++---
 sbin/hammer2/msg.c         |   83 ++++++++++++++++++++++++++++++++----------
 sbin/hammer2/network.h     |    2 +-
 3 files changed, 145 insertions(+), 26 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/1b195a982651cc65fe202f626320cf1368df1422


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