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[1791] more cleanup: remove variable 'rdata' and make it a member variable.

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this way we can also avoid creating the same RDATA twice.  textual row
variables were renamed to *_txt_ for consistency.
This commit is contained in:
JINMEI Tatuya
2012-04-09 13:21:08 -07:00
parent f1f0bc0044
commit 0996aa92a1
1 changed files with 26 additions and 19 deletions
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45
src/lib/datasrc/database.cc
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@@ -1008,15 +1008,18 @@ public:
LOG_DEBUG(logger, DBG_TRACE_DETAILED, DATASRC_DATABASE_ITERATE_END);
return (ConstRRsetPtr());
}
const Name name(name_);
const RRType rtype(rtype_);
RRsetPtr rrset(new RRset(name, class_, rtype, RRTTL(ttl_)));
const ConstRdataPtr rdata_base =
rdata::createRdata(rtype, class_, rdata_);
ConstRdataPtr rdata = rdata_base;
const RRType rtype(rtype_txt_);
RRsetPtr rrset(new RRset(Name(name_txt_), class_, rtype,
RRTTL(ttl_txt_)));
// For the first RR, rdata_ is null, so we need to create it here.
// After that, rdata_ will be updated in the while loop below.
if (!rdata_) {
rdata_ = rdata::createRdata(rtype, class_, rdata_txt_);
}
const ConstRdataPtr rdata_base = rdata_; // remember it for comparison
while (true) {
// Extend the RRset with the new RDATA.
rrset->addRdata(rdata);
rrset->addRdata(rdata_);
// Retrieve the next record from the database. If we reach the
// end of the zone, done; if we were requested to separate all RRs,
@@ -1027,22 +1030,24 @@ public:
}
// Check if the next record belongs to the same RRset. If not,
// we are done.
const RRType next_rtype(rtype_);
rdata = rdata::createRdata(next_rtype, class_, rdata_);
if (Name(name_) != name ||
!isSameType(rtype, rdata_base, next_rtype, rdata)) {
// we are done. The next RDATA is stored in rdata_, which is used
// within this loop (if it belongs to the same RRset) or in the
// next call.
const RRType next_rtype(rtype_txt_);
rdata_ = rdata::createRdata(next_rtype, class_, rdata_txt_);
if (Name(name_txt_) != rrset->getName() ||
!isSameType(rtype, rdata_base, next_rtype, rdata_)) {
break;
}
// Adjust TTL if necessary
const RRTTL next_ttl(ttl_);
const RRTTL next_ttl(ttl_txt_);
if (next_ttl != rrset->getTTL()) {
if (next_ttl < rrset->getTTL()) {
rrset->setTTL(next_ttl);
}
LOG_WARN(logger, DATASRC_DATABASE_ITERATE_TTL_MISMATCH).
arg(name_).arg(class_).arg(rtype_).arg(rrset->getTTL());
arg(name_txt_).arg(class_).arg(rtype).arg(rrset->getTTL());
}
}
LOG_DEBUG(logger, DBG_TRACE_DETAILED, DATASRC_DATABASE_ITERATE_NEXT).
@@ -1072,10 +1077,10 @@ private:
void getData() {
string data[DatabaseAccessor::COLUMN_COUNT];
data_ready_ = context_->getNext(data);
name_ = data[DatabaseAccessor::NAME_COLUMN];
rtype_ = data[DatabaseAccessor::TYPE_COLUMN];
ttl_ = data[DatabaseAccessor::TTL_COLUMN];
rdata_ = data[DatabaseAccessor::RDATA_COLUMN];
name_txt_ = data[DatabaseAccessor::NAME_COLUMN];
rtype_txt_ = data[DatabaseAccessor::TYPE_COLUMN];
ttl_txt_ = data[DatabaseAccessor::TTL_COLUMN];
rdata_txt_= data[DatabaseAccessor::RDATA_COLUMN];
}
// The dedicated accessor
@@ -1089,7 +1094,9 @@ private:
// Status
bool ready_, data_ready_;
// Data of the next row
string name_, rtype_, rdata_, ttl_;
string name_txt_, rtype_txt_, rdata_txt_, ttl_txt_;
// RDATA of the next row; created from rdata_txt_.
ConstRdataPtr rdata_;
// Whether to modify differing TTL values, or treat a different TTL as
// a different RRset
bool separate_rrs_;