forked from Alepha/Alepha
ADAM David Alan Martin
6c165b1603
This permits "stateless" allocators which grab memory from a `thread_local Alepha::Blob` instance. Each allocation sticks a malloc cookie of type `std::shared_ptr< Alepha::Blob::StorageReservation >` just before the base of the allocation. The allocator object knows that it needs to `reinterpret_cast` the malloc cookie into a shared pointer and run its destructor. This causes the Blob's underlying reference counted allocation to be tied to the lifetime of the allocated memory. The intent is to permit cheap allocation in one thread and deallocation in another. Each deallocation should be a single atomic dereference operation. Each allocation should be (usually) a bit of pointer arithmetic and a single atomic increment operation. This, hopefully, eliminates significant thread contention for the global allocation mechanism between various threads in an intensive multithreaded situation where each processing thread thread may independently retire data objects allocated by a single source.
2 lines
15 B
CMake
2 lines
15 B
CMake
unit_test( 0 )
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