std::pmr::s...ol_resource(3) C++ Standard Libary std::pmr::s...ol_resource(3) NAME std::pmr::synchronized_pool_resource - std::pmr::synchronized_pool_resource Synopsis Defined in header <memory_resource> class synchronized_pool_resource : public std::pmr::memory_resource; (since C++17) The class std::pmr::synchronized_pool_resource is a general-purpose mem- ory resource class with the following properties: * It owns the allocated memory and frees it on destruction, even if deallocate has not been called for some of the allocated blocks. * It consists of a collection of pools that serves requests for dif- ferent block sizes. Each pool manages a collection of chunks that are then di- vided into blocks of uniform size. * Calls to do_allocate are dispatched to the pool serving the smallest blocks accommodating the requested size. * Exhausting memory in the pool causes the next allocation request for that pool to allocate an additional chunk of memory from the upstream alloca- tor to replenish the pool. The chunk size obtained increases geometrically. * Allocations requests that exceed the largest block size are served from the upstream allocator directly. * The largest block size and maximum chunk size may be tuned by pass- ing a std::pmr::pool_options struct to its constructor. synchronized_pool_resource may be accessed from multiple threads without external synchronization, and may have thread-specific pools to reduce synchro- nization costs. If the memory resource is only accessed from one thread, unsynchronized_pool_resource is more efficient. Member functions constructor constructs a synchronized_pool_resource (public member function) destructor destroys a synchronized_pool_resource, releasing all allocated [virtual] memory (virtual public member function) operator= copy assignment operator is deleted. synchro- nized_pool_resource is [deleted] not copy assignable (public member function) Public member functions release release all allocated memory (public member function) upstream_resource returns a pointer to the upstream memory resource (public member function) returns the options that control the pooling behavior of this options resource (public member function) Protected member functions do_allocate allocate memory [virtual] (virtual protected member function) do_deallocate return memory to the pool [virtual] (virtual protected member function) do_is_equal compare for equality with another memory_resource [virtual] (virtual protected member function) http://cppreference.com 2024.06.10 std::pmr::s...ol_resource(3)
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