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context: get rid of shared_ptr<BeesContext> in every single cached Fd object

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Support for multiple BeesContext objects sharing a FdCache was wasting
significant space and atomic inc/dec memory cycles for no good reason
since the shared-FdCache feature was deprecated.

open_root and open_root_ino still need a BeesContext to work.  Pass the
BeesContext pointer through the function object instead of the cache
key arguments.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2021-04-28 21:54:00 -04:00
parent db65031c2b
commit 80c69f1ce4
3 changed files with 21 additions and 19 deletions
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15
src/bees.h
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@ -697,15 +697,16 @@ public:
};
class BeesFdCache {
LRUCache<Fd, shared_ptr<BeesContext>, uint64_t> m_root_cache;
LRUCache<Fd, shared_ptr<BeesContext>, uint64_t, uint64_t> m_file_cache;
Timer m_root_cache_timer;
Timer m_file_cache_timer;
shared_ptr<BeesContext> m_ctx;
LRUCache<Fd, uint64_t> m_root_cache;
LRUCache<Fd, uint64_t, uint64_t> m_file_cache;
Timer m_root_cache_timer;
Timer m_file_cache_timer;
public:
BeesFdCache();
Fd open_root(shared_ptr<BeesContext> ctx, uint64_t root);
Fd open_root_ino(shared_ptr<BeesContext> ctx, uint64_t root, uint64_t ino);
BeesFdCache(shared_ptr<BeesContext> ctx);
Fd open_root(uint64_t root);
Fd open_root_ino(uint64_t root, uint64_t ino);
void clear();
};