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[space-maps/recursive] Remove some code duplication.

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This commit is contained in:
Joe Thornber 2020-05-26 08:38:05 +01:00
parent 65fcda062f
commit 0e54de95e1
1 changed files with 23 additions and 37 deletions
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60
persistent-data/space-maps/recursive.cc
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@ -44,6 +44,7 @@ namespace {
int32_t rc_;
};
// Aggregates two block_ops
block_op operator +(block_op const &lhs, block_op const &rhs) {
switch (lhs.op_) {
case INC:
@ -87,24 +88,7 @@ namespace {
}
virtual ref_t get_count(block_address b) const {
ref_t count = sm_->get_count(b);
auto ops_it = ops_.find(b);
if (ops_it != ops_.end()) {
auto const &op = ops_it->second;
switch (op.op_) {
case INC:
count += op.rc_;
break;
case SET:
count = op.rc_;
break;
}
}
return count;
return modify_count(b, sm_->get_count(b));
}
virtual void set_count(block_address b, ref_t c) {
@ -155,25 +139,7 @@ namespace {
if (gto)
return true;
ref_t count = 1;
// FIXME: duplication
auto ops_it = ops_.find(b);
if (ops_it != ops_.end()) {
auto const &op = ops_it->second;
switch (op.op_) {
case INC:
count += op.rc_;
break;
case SET:
count = op.rc_;
break;
}
}
return count > 1;
return modify_count(b, 1) > 1;
}
virtual void extend(block_address extra_blocks) {
@ -222,7 +188,27 @@ namespace {
}
private:
uint32_t modify_count(block_address b, uint32_t count) const {
auto ops_it = ops_.find(b);
if (ops_it != ops_.end()) {
auto const &op = ops_it->second;
switch (op.op_) {
case INC:
count += op.rc_;
break;
case SET:
count = op.rc_;
break;
}
}
return count;
}
void flush_ops_() {
// FIXME: we need to remove entries as we act upon them
for (auto const &p : ops_) {
// FIXME: lift outside the loop?
recursing_lock lock(*this);