modified:   memfile_lease_mgr.h

src/lib/dhcpsrv/memfile_lease_limits.cc
    ClassLeaseCounter::getLeaseClientClasses()
    - improved error handling

src/lib/dhcpsrv/memfile_lease_limits.h
    ClassLeaseCounter::getLeaseClientClasses()
    - changed from const to static

src/lib/dhcpsrv/memfile_lease_mgr.cc
    Memfile_LeaseMgr::checkLimits4() fixed count type
    Memfile_LeaseMgr::checkLimits6() fixed exception

dhcpsrv/memfile_lease_mgr.h
    fixed typos

src/lib/dhcpsrv/tests/generic_lease_mgr_unittest.cc
    GenericLeaseMgrTest::testLeaseLimits4()
    GenericLeaseMgrTest::testLeaseLimits6()
    - removed unecesary CfgMgr logic

src/lib/dhcpsrv/tests/memfile_lease_limits_unittest.cc
    TEST_F(ClassLeaseCounterTest, adjustClassCountsTest4)
    TEST_F(ClassLeaseCounterTest, adjustClassCountsTest6)
    TEST_F(ClassLeaseCounterTest, getLeaseClientClassesTest)
    - new tests

src/lib/dhcpsrv/memfile_lease_mgr.cc
    Memfile_LeaseMgr::getClassLeaseCount() - added mutex

src/lib/dhcpsrv/memfile_lease_mgr.h
    Added thread-safe comments

src/lib/dhcpsrv/memfile_lease_limits.cc
    ClassLeaseCounter::getLeaseClientClasses()
    - improved error handling

src/lib/dhcpsrv/memfile_lease_limits.h
    ClassLeaseCounter::getLeaseClientClasses()
    - changed from const to static

src/lib/dhcpsrv/memfile_lease_mgr.cc
    Memfile_LeaseMgr::checkLimits4() fixed count type
    Memfile_LeaseMgr::checkLimits6() fixed exception

dhcpsrv/memfile_lease_mgr.h
    fixed typos

src/lib/dhcpsrv/tests/generic_lease_mgr_unittest.cc
    GenericLeaseMgrTest::testLeaseLimits4()
    GenericLeaseMgrTest::testLeaseLimits6()
    - removed unecesary CfgMgr logic

src/lib/dhcpsrv/tests/memfile_lease_limits_unittest.cc
    TEST_F(ClassLeaseCounterTest, adjustClassCountsTest4)
    TEST_F(ClassLeaseCounterTest, adjustClassCountsTest6)
    TEST_F(ClassLeaseCounterTest, getLeaseClientClassesTest)
    - new tests

src/lib/dhcpsrv/lease_mgr.h
    Make LeaseMgr::getClassLeaseCount() const

src/lib/dhcpsrv/memfile_lease_limits.*
    Add ClassLeaseCounter()::getConstCountMap()
    make  size() const

src/lib/dhcpsrv/memfile_lease_mgr.*
    make Memfile_LeaseMgr::getClassLeaseCount() const
    Memfile_LeaseMgr::checkLimits4()
    Memfile_LeaseMgr::checkLimits6()
    Memfile_LeaseMgr::getSubnetStat()
    Memfile_LeaseMgr::getLeaseLimit() - new functions

src/lib/dhcpsrv/tests/generic_lease_mgr_unittest.cc
    GenericLeaseMgrTest::testLeaseLimits4()
    GenericLeaseMgrTest::testLeaseLimits6()
    - use CfgMgr to update subent stats

src/lib/dhcpsrv/tests/memfile_lease_mgr_unittest.cc
    Enable checkLimits tests

Use "client-classes" not "classes" in user-context

src/lib/dhcpsrv/memfile_lease_limits.cc
src/lib/dhcpsrv/tests/generic_lease_mgr_unittest.cc
src/lib/dhcpsrv/tests/memfile_lease_limits_unittest.cc

src/lib/dhcpsrv/tests/generic_lease_mgr_unittest.cc
    GenericLeaseMgrTest::testLeaseLimits6() - fixed error created
    one I originally split testLeaseLimits()

src/lib/dhcpsrv/tests/mysql_lease_mgr_unittest.cc
   split TEST_F(MySqlLeaseMgrTest, checkLimits) into v4 and v6 tests

src/lib/dhcpsrv/tests/generic_lease_mgr_unittest.*
    Split GenericLeaseMgrTest::testLeaseLimits() into:
        GenericLeaseMgrTest::testLeaseLimits4()
        GenericLeaseMgrTest::testLeaseLimits6()

src/lib/dhcpsrv/tests/memfile_lease_mgr_unittest.cc
    TEST_F(MemfileLeaseMgrTest, isJsonSupported4)
    TEST_F(MemfileLeaseMgrTest, isJsonSupported6)
    TEST_F(MemfileLeaseMgrTest, DISABLED_checkLimitsNull4)
    TEST_F(MemfileLeaseMgrTest, DISABLED_checkLimitsNull6)
    TEST_F(MemfileLeaseMgrTest, DISABLED_checkLimits4)
    TEST_F(MemfileLeaseMgrTest, DISABLED_checkLimits6) - new tests

src/lib/dhcpsrv/tests/mysql_lease_mgr_unittest.cc
    TEST_F(MySqlLeaseMgrTest, DISABLED_classLeaseCount4)
    TEST_F(MySqlLeaseMgrTest, DISABLED_classLeaseCount6_NA)
    TEST_F(MySqlLeaseMgrTest, DISABLED_classLeaseCount6_PD) - new tests

src/lib/dhcpsrv/memfile_lease_limits.h
    Commentary fixes

rc/lib/dhcpsrv/memfile_lease_mgr.cc
    Memfile_LeaseMgr::updateLease4Internal()
    Memfile_LeaseMgr::updateLease6Internal() - adjust counts
    after replacing the lease in store

    Memfile_LeaseMgr::recountClassLeases4()
    Memfile_LeaseMgr::recountClassLeases6() - remove use of index

src/lib/dhcpsrv/tests/memfile_lease_limits_unittest.cc
    Fix wrong lease states.

src/lib/dhcpsrv/memfile_lease_limits.cc
    ClassLeaseCounter::getLeaseClientClasses() - looks for classes in "ISC"

src/lib/dhcpsrv/memfile_lease_limits.h
    ClassCountMap& getCountMap() - reordered return logic

src/lib/dhcpsrv/memfile_lease_mgr.h
    override and virtual use correction

src/lib/dhcpsrv/tests/generic_lease_mgr_unittest.*
    GenericLeaseMgrTest::makeContextWithClasses() - embed in "ISC" element

src/lib/dhcpsrv/tests/memfile_lease_limits_unittest.cc
    makeContextWithClasses() - embed in "ISC" element

src/lib/dhcpsrv/tests/memfile_lease_mgr_unittest.cc
    add using namespace data

modified:   memfile_lease_mgr_unittest.cc

Moved tests from memfile_lease_mgr_unittests.* to
generic_lease_mgr_unitest.*

src/lib/dhcpsrv/lease_mgr.*
    LeaseMgr - added virtual methods:
    ::recountClassLeases4()
    ::recountClassLeases6()
    ::getClassLeaseCount()

src/lib/dhcpsrv/memfile_lease_mgr.*
    Memfile_LeaseMgr
    ::addLeaseInternal()
    ::updateLeaseXInternal()
    ::deleteLeaseInternal(const Lease4Ptr& lease) {
    - added calls to add/remove leases from count map

    ::recountClassLeases4()
    ::recountClassLeases6()
    ::getClassLeaseCount()

src/lib/dhcpsrv/tests/generic_lease_mgr_unittest.cc
    Added boolean flag to makeLease4 and makeLease6

src/lib/dhcpsrv/tests/memfile_lease_mgr_unittest.cc
    New tests:
    TEST_F(MemfileLeaseMgrTest, classLeaseCount4)
    TEST_F(MemfileLeaseMgrTest, classLeaseCount6_NA)
    TEST_F(MemfileLeaseMgrTest, classLeaseCount6_PD)
    TEST_F(MemfileLeaseMgrTest, classLeaseRecount4)
    TEST_F(MemfileLeaseMgrTest, classLeaseRecount6)

Implemented dhcp::ClassLeaseCounter, a container for
managing lease counts per class

src/lib/dhcpsrv/memfile_lease_limits.h
src/lib/dhcpsrv/memfile_lease_limits.cc
    New files that support class lease counting

src/lib/dhcpsrv/Makefile.am
    added memfile_lease_limits.cc, memfile_lease_limits.h

src/lib/dhcpsrv/lease.h
    added Lease::getType() because I am sick of it not existing

src/lib/dhcpsrv/memfile_lease_limits_unittest.cc
    New file

src/lib/dhcpsrv/tests/Makefile.am
    added memfile_lease_limits_unittest.cc