The libpmemblk implements a pmem-resident array of blocks, all the same
size, where a block is updated atomically with respect to power
failure or program interruption (no torn blocks).
For example, a program keeping a cache of fixed-size objects in pmem
might find this library useful. This library is provided for cases
requiring large arrays of objects at least 512 bytes each. Most
developers will find higher level libraries like libpmemobj to be
more generally useful.