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[optimize_query] Add new index for query by DUID

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Fixes #98
This commit is contained in:
mayya
2018-07-22 17:00:50 +02:00
committed by Tomek Mrugalski
parent 8d585b9a4d
commit a121466e05
17 changed files with 182 additions and 32 deletions
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32
src/lib/dhcpsrv/mysql_lease_mgr.cc
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@@ -223,6 +223,15 @@ tagged_statements = { {
"state, user_context "
"FROM lease6 "
"WHERE subnet_id = ?"},
{MySqlLeaseMgr::GET_LEASE6_DUID,
"SELECT address, duid, valid_lifetime, "
"expire, subnet_id, pref_lifetime, "
"lease_type, iaid, prefix_len, "
"fqdn_fwd, fqdn_rev, hostname, "
"hwaddr, hwtype, hwaddr_source, "
"state, user_context "
"FROM lease6 "
"WHERE duid = ?"},
{MySqlLeaseMgr::GET_LEASE6_EXPIRE,
"SELECT address, duid, valid_lifetime, "
"expire, subnet_id, pref_lifetime, "
@@ -2224,15 +2233,22 @@ Lease6Collection
MySqlLeaseMgr::getLeases6(const DUID& duid) const {
LOG_DEBUG(dhcpsrv_logger, DHCPSRV_DBG_TRACE_DETAIL, DHCPSRV_MYSQL_GET_DUID);
Lease6Collection result = getLeases6();
// Set up the WHERE clause value
MYSQL_BIND inbind[1];
memset(inbind, 0, sizeof(inbind));
const vector<uint8_t>& duid_vector = duid.getDuid();
unsigned long duid_length = duid_vector.size();
inbind[0].buffer_type = MYSQL_TYPE_BLOB;
inbind[0].buffer = reinterpret_cast<char*>(
const_cast<uint8_t*>(&duid_vector[0]));
inbind[0].buffer_length = duid_length;
inbind[0].length = &duid_length;
//erase the ones not containing the matching DUID
for (auto iter = result.begin(); iter != result.end();
iter++) {
if ((*iter)->duid_->getDuid() != duid.getDuid()) {
result.erase(iter);
}
}
Lease6Collection result;
getLeaseCollection(GET_LEASE6_DUID, inbind, result);
return result;
}