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[various data structures] Reuse validators rather than always creating a new one.

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This commit is contained in:
Joe Thornber
2013-04-26 14:15:20 +01:00
parent 53ac7b8119
commit 5367631c8c
4 changed files with 50 additions and 45 deletions
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16
persistent-data/data-structures/btree.h
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@@ -184,8 +184,10 @@ namespace persistent_data {
class ro_spine : private noncopyable {
public:
ro_spine(transaction_manager::ptr tm)
: tm_(tm) {
ro_spine(transaction_manager::ptr tm,
typename block_manager<>::validator::ptr v)
: tm_(tm),
validator_(v) {
}
void step(block_address b);
@@ -197,6 +199,7 @@ namespace persistent_data {
private:
transaction_manager::ptr tm_;
typename block_manager<>::validator::ptr validator_;
std::list<block_manager<>::read_ref> spine_;
};
@@ -205,8 +208,11 @@ namespace persistent_data {
typedef transaction_manager::read_ref read_ref;
typedef transaction_manager::write_ref write_ref;
shadow_spine(transaction_manager::ptr tm)
: tm_(tm) {
shadow_spine(transaction_manager::ptr tm,
typename block_manager<>::validator::ptr v)
: tm_(tm),
validator_(v) {
}
// true if the children of the shadow need incrementing
@@ -253,6 +259,7 @@ namespace persistent_data {
private:
transaction_manager::ptr tm_;
typename block_manager<>::validator::ptr validator_;
std::list<block_manager<>::write_ref> spine_;
block_address root_;
};
@@ -354,6 +361,7 @@ namespace persistent_data {
block_address root_;
no_op_ref_counter<uint64_t> internal_rc_;
typename ValueTraits::ref_counter rc_;
typename block_manager<>::validator::ptr validator_;
};
};