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context: create a Pool of BtrfsIoctlLogicalInoArgs objects

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Each object contains a 16 MiB buffer, which is very heavy for some
malloc implementations.

Keep the objects in a Pool so that their buffers are only allocated and
deallocated once in the process lifetime.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2023-02-21 00:04:31 -05:00
parent 7c764a73c8
commit 3430f16998
2 changed files with 17 additions and 1 deletions
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3
src/bees.h
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@ -714,6 +714,7 @@ class BeesContext : public enable_shared_from_this<BeesContext> {
shared_ptr<BeesHashTable> m_hash_table;
shared_ptr<BeesRoots> m_roots;
Pool<BeesTempFile> m_tmpfile_pool;
Pool<BtrfsIoctlLogicalInoArgs> m_logical_ino_pool;
LRUCache<BeesResolveAddrResult, BeesAddress> m_resolve_cache;
@ -753,6 +754,8 @@ public:
bool scan_forward(const BeesFileRange &bfr);
shared_ptr<BtrfsIoctlLogicalInoArgs> logical_ino(uint64_t bytenr, bool all_refs);
bool is_root_ro(uint64_t root);
BeesRangePair dup_extent(const BeesFileRange &src, const shared_ptr<BeesTempFile> &tmpfile);
bool dedup(const BeesRangePair &brp);