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NAME¶
pmem2_config_set_required_store_granularity() - set a granularity in pmem2_config structure.
SYNOPSIS¶
-
#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);
DESCRIPTION¶
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.
RETURN VALUE¶
The pmem2_config_set_required_store_granularity() function returns 0 on success or a negative error code on failure.
ERRORS¶
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.
SEE ALSO¶
2024-05-23 | PMDK - |