pmem2_config_set_required_store_granularity() - set a granularity in pmem2_config structure.

The pmem2_config_set_required_store_granularity() sets a maximum permitted granularity g requested by user in the pmem2_config structure. Granularity must be one of the following values: • PMEM2_GRANULARITY_BYTE • PMEM2_GRANULARITY_CACHE_LINE • PMEM2_GRANULARITY_PAGE A description of the granularity concept can be found in libpmem2(7) manpage.

The pmem2_config_set_required_store_granularity() can fail with the following errors: • PMEM2_E_GRANULARITY_NOT_SUPPORTED - granularity g is not a valid value.

pmem2_config_set_required_store_granularity() - set a granularity in pmem2_config structure.

The pmem2_config_set_required_store_granularity() function returns 0 on success or a negative error code on failure.

pmem2_config_new(3), libpmem2(7) and <https://pmem.io>

#include <libpmem2.h> enum pmem2_granularity { PMEM2_GRANULARITY_BYTE, PMEM2_GRANULARITY_CACHE_LINE, PMEM2_GRANULARITY_PAGE, }; int pmem2_config_set_required_store_granularity(struct pmem2_config *cfg, enum pmem2_granularity g);