040000 tree 611dff6ed276050f771278353a7469f36632efb1	cons
040000 tree c0b76293a1ab5e228da75eaf8b42a08d28e9a756	dest
040000 tree 2e6cb941df3e6e7568cfef3021e26d7cb0c5731e	lock
040000 tree c544751f67bc1b595f41f38297f4c4f963cf7d84	native_handle
040000 tree 56465fd62541759a63f1ffb67b5b6dd6138e848d	requirements
040000 tree 41bb7e363907770641a179c0382b29cb4611d3cc	try_lock
040000 tree ee51625b30f0ecbee6fe6c776e72480a093f4ce8	try_lock_for
040000 tree bbda7d4c8ce8528ef2cc9fd7c6d717a56fe8a42d	try_lock_until
040000 tree 676e78873e06d3cd86ec3d4330e20c265a611582	unlock