fixedallocator - Man Page


libmemkind::fixed::allocator<T> ā€” The C++ allocator compatible with the C++ standard library allocator concepts
Note: fixed_allocator.h is a part of stable API (STANDARD API).


#include <fixed_allocator.h>

Link with -lmemkind

libmemkind::fixed::allocator(void *addr, size_t size);
template <typename U> libmemkind::fixed::allocator<T>::allocator(const libmemkind::fixed::allocator<U>&) noexcept;
template <typename U> libmemkind::fixed::allocator<T>::allocator(allocator<U>&& other) noexcept;
T *libmemkind::fixed::allocator<T>::allocate(std::size_t n) const;
void libmemkind::fixed::allocator<T>::deallocate(T *p, std::size_t n) const;
template <class U, class... Args> void libmemkind::fixed::allocator<T>::construct(U *p, Args... &&args) const;
void libmemkind::fixed::allocator<T>::destroy(T *p) const;


The libmemkind::fixed::allocator<T> is intended to be used with STL containers to allocate memory on specific area. Memory management is handled by jemalloc on the supplied area. Refer memkind(3) man page for more details.

All public member types and functions correspond to standard library allocator concepts and definitions. The current implementation supports C++11 standard.

Template arguments:
T is an object type aliased by value_type.
U is an object type.

T *libmemkind::fixed::allocator<T>::allocate(std::size_t n) allocates memory using memkind_malloc() on the area supplied to libmemkind::fixed::allocator(). Throws std::bad_alloc when:

n = 0

or there is not enough memory to satisfy the request.

libmemkind::fixed::allocator<T>::deallocate(T *p, std::size_t n) deallocates memory associated with pointer returned by allocate() using memkind_free().

See Also



2021-12-03 Intel Corporation FIXEDALLOCATOR