GitLab

    Several libraries depend on boost_system lib according to
    otool, but lacked linking to $(BOOST_LIBS) in their Makefile.am.
    This has been corrected:

    src/lib/asiodns/Makefile.am
    src/lib/config/Makefile.am
    src/lib/dhcp/Makefile.am
    src/lib/dhcp_ddns/Makefile.am
    src/lib/dhcpsrv/Makefile.am
    src/lib/eval/Makefile.am
    src/lib/stats/Makefile.am

Apparently we have dependency on BOOST, likely through
/cc/data.h which uses IOAddress ....

- Increase total_attempts one by one.
- Add debug message to indicate skipping reservations in subnet
  which classes do not match.

    Extracted command helper functions into new base class, so
    other hook libs may use it.

Refactored the LeaseCmd(Impl) handlers to accept CalloutHandle rather
than command name and arguments. This does two things:

1. Passes the context into the handlers, should we ever want to
pass additional information into or out of the handlers

2. Greatly reduces code clutter

The changes were patterned after what was done in subnets_cmds hook lib.

src/hooks/dhcp/lease_cmds/lease_cmds_callouts.cc
    New file which provides callout functions for each lease command
    as well as load() and unload() (formerly in load_unload.cc)

src/hooks/dhcp/lease_cmds/load_unload.cc
    File deleted

src/hooks/dhcp/lease_cmds/Makefile.am
    Added lease_cmds_callouts.cc
    Removed load_unload.cc

src/hooks/dhcp/lease_cmds/lease_cmds.h
src/hooks/dhcp/lease_cmds/lease_cmds.cc
    LeaseCmdsImpl - removed ctor, dtor, registerCommands, deregisterCommands,
    and changed handlers to non static

    LeaseCmds - added wrapper methods around LeaseCmdImpl handlers