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NAME¶
pmem2_config_set_sharing() - set sharing in the pmem2_config structure
SYNOPSIS¶
-
#include <libpmem2.h> struct pmem2_config; enum pmem2_sharing_type {
PMEM2_SHARED,
PMEM2_PRIVATE, }; int pmem2_config_set_sharing(struct pmem2_config *config, enum pmem2_sharing_type sharing);
DESCRIPTION¶
The pmem2_config_set_sharing() function configures the behavior and visibility of writes to the mapping’s pages. The possible values are listed below:
- •
- PMEM2_SHARED - Writes are made directly to the underlying memory, making them visible to other mappings of the same memory region. (default)
- •
- PMEM2_PRIVATE - Writes do not affect the underlying memory and are not visible to other mappings of the same memory region.
RETURN VALUE¶
The pmem2_config_set_sharing() function returns 0 on success or a negative error code on failure.
ERRORRS¶
The pmem2_config_set_sharing() can fail with the following errors:
- •
- PMEM2_E_INVALID_SHARING_VALUE - sharing value is invalid.
SEE ALSO¶
libpmem2(7), pmem2_config_new(3), pmem2_map_new(3), sysconf(3) and <https://pmem.io>
2024-05-23 | PMDK - |