BIND 10 #2855: introduce a "zone builder" thread in memory manager

[BIND 10 Development]

#2855: introduce a "zone builder" thread in memory manager
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            Reporter:  jinmei        |                        Owner:
                Type:  task          |                       Status:  new
            Priority:  medium        |                    Milestone:  Next-
           Component:  shmem         |  Sprint-Proposed
  manager                            |                   Resolution:
            Keywords:                |                 CVSS Scoring:
           Sensitive:  0             |              Defect Severity:  N/A
         Sub-Project:  DNS           |  Feature Depending on Ticket:
Estimated Difficulty:  0             |          Add Hours to Ticket:  0
         Total Hours:  0             |                    Internal?:  0
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Comment (by vorner):

 Just a crazy idea, if that couldn't be easier:
  * On the loading task, create a separate thread.
  * The thread does the loading.
  * Terminates.

 The master process can handle SIGCHLD and see when it terminated and if
 successfully. Or, the work thread could connect to msgq itself and send
 some kind of „Done“ message.

 I don't know if we can afford that (how many updates there could be and
 how ofter) and if it would be easier.

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Ticket URL: <http://bind10.isc.org/ticket/2855#comment:1>
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