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Reduce times of move and copy operation

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ideal 2019-11-06 21:23:58 +08:00 committed by ridiculousfish
parent e37bb0721d
commit 8aaccf1587
1 changed files with 2 additions and 2 deletions
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4
src/lru.h
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@ -41,7 +41,7 @@ class lru_cache_t {
// The value from the client // The value from the client
Contents value; Contents value;
explicit lru_node_t(const Contents &v) : value(std::move(v)) {} explicit lru_node_t(Contents &&v) : value(std::move(v)) {}
}; };
typedef typename std::unordered_map<wcstring, lru_node_t>::iterator node_iter_t; typedef typename std::unordered_map<wcstring, lru_node_t>::iterator node_iter_t;
@ -217,7 +217,7 @@ class lru_cache_t {
// Adds a node under the given key without triggering eviction. Returns true if the node was // Adds a node under the given key without triggering eviction. Returns true if the node was
// added, false if the node was not because a node with that key is already in the set. // added, false if the node was not because a node with that key is already in the set.
bool insert_no_eviction(wcstring key, Contents value) { bool insert_no_eviction(wcstring &&key, Contents &&value) {
// Try inserting; return false if it was already in the set. // Try inserting; return false if it was already in the set.
auto iter_inserted = this->node_map.emplace(std::move(key), lru_node_t(std::move(value))); auto iter_inserted = this->node_map.emplace(std::move(key), lru_node_t(std::move(value)));
if (!iter_inserted.second) { if (!iter_inserted.second) {