pmem2_config_set_length() - set length in the pmem2_config structure

The pmem2_config_set_length() function configures the length which will be used for mapping. *config should be already initialized, please see pmem2_config_new(3) for details. The mustbeamultipleofthealignmentrequiredforthedatasourcewhichwillbeusedformappingalongsidetheconfig.Toretrievethealignmentrequiredforspecificinstanceof pmem2_source** use pmem2_source_alignment(3). By de‐ fault, the length is equal to the size of the file that is being mapped.

pmem2_config_set_length() - set length in the pmem2_config structure

The pmem2_config_set_length() function always returns 0.

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

#include <libpmem2.h> struct pmem2_config; int pmem2_config_set_length(struct pmem2_config *config, size_t length);