Thread-safe allocator adaptor. Uses a spin lock on the assumption that contention here is extremely rare.
Declared in <llvm/Support/ThreadSafeAllocator.h>
template<class AllocatorType>
class ThreadSafeAllocator;TODO: Using a spin lock on every allocation can be quite expensive when contention is high. Since this is mainly used for BumpPtrAllocator and SpecificBumpPtrAllocator, it'd be better to have a specific thread-safe BumpPtrAllocator implementation that only use a fair lock when allocating a new slab but otherwise using atomic and be lock-free.
| Name | Description |
|---|---|
Allocate | Allocate overloads |
applyLocked | Invoke Fn with the underlying allocator while holding the lock. |