bors 4a217759ad Auto merge of #26610 - aturon:fix_make_unique, r=alexcrichton ... This commit resolves the race condition in the `get_mut` and `make_unique` functions, which arose through interaction with weak pointers. The basic strategy is to "lock" the weak pointer count when trying to establish uniqueness, by reusing the field as a simple spinlock. The overhead for normal use of `Arc` is expected to be minimal -- it will be *none* when only strong pointers are used, and only requires a move from atomic increment to CAS for usage of weak pointers. The commit also removes the `unsafe` and deprecated status of these functions. Closes #24880 r? @alexcrichton cc @metajack @SimonSapin @Ms2ger		2015-07-03 01:00:31 +00:00
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arc.rs	Auto merge of #26610 - aturon:fix_make_unique, r=alexcrichton	2015-07-03 01:00:31 +00:00
boxed.rs	Use Box::into_raw rather than the deprecated boxed::into_raw in tests and documentation.	2015-06-26 22:29:40 +02:00
boxed_test.rs	Use Box::into_raw rather than the deprecated boxed::into_raw in tests and documentation.	2015-06-26 22:29:40 +02:00
heap.rs	alloc: Split apart the global alloc feature	2015-06-17 09:06:59 -07:00
lib.rs	Fallout in tests and docs from feature renamings	2015-06-17 09:07:16 -07:00
rc.rs	Implement CoerceUnsized for rc::Weak	2015-07-01 15:51:17 -04:00