pmem2_config_set_offset() - set offset in the pmem2_config structure

The pmem2_config_set_offset() function configures the offset which will be used to map the contents from the specified location of the source. *config should be already initialized, please see pmem2_con‐fig_new(3) for details. The mustbeamultipleofthealignmentrequiredfortheconfig.Thealignmentrequirementsarespecifictoadatasource.Toretrievethealignmentrequiredforspecificinstanceof pmem2_source** use pmem2_source_alignment(3). By default, the offset is 0.

The pmem2_config_set_offset() can fail with the following errors: • PMEM2_E_OFFSET_OUT_OF_RANGE - argument out of range, offset is greater than INT64_MAX

pmem2_config_set_offset() - set offset in the pmem2_config structure

The pmem2_config_set_offset() function returns 0 on success or a negative error code on failure.

libpmem2(7), pmem2_source_alignment(3), pmem2_config_new(3), pmem2_map_new(3), sysconf(3) and <https://pmem.io>

#include <libpmem2.h> struct pmem2_config; int pmem2_config_set_offset(struct pmem2_config *config, size_t offset);