DAOS-16877 client: implement utilities for shared memory#15613

Draft

wiliamhuang wants to merge 3 commits intofeature/dfs_dcachefrom lei/DAOS-16877

+2,979-5

Commits on Dec 13, 2024

DAOS-16877 client: implement utilities for shared memory
wiliamhuang
committed

Commits on Dec 15, 2024

use atomic operation to avoid locking and import python function
wiliamhuang
committed

Commits on Dec 19, 2024

revert the support of flock with rwlock and wrap pthread_mutex with shm_mutex
wiliamhuang
committed