NAME

       pmem2_map_delete() - deletes a mapping

SYNOPSIS

              #include <libpmem2.h>

              int pmem2_map_delete(struct pmem2_map **map_ptr);

DESCRIPTION

       The pmem2_map_delete() function deletes the mapping described by the struct pmem2_map object.

       If  pmem2_map_delete() succeeds in deleting the mapping, it releases the struct pmem2_map object describ‐
       ing it and writes a NULL value to map_ptr.  If the function fails, the map_ptr variable and the  map  ob‐
       ject  itself  are left unmodified and appropriate error value is returned.  For a list of possible return
       values please see RETURN VALUE.

       The pmem2_map_delete() function will not unmap mapping provided by the user by  pmem2_map_from_existing()
       function.  In such case it will only free struct pmem2_map object.

RETURN VALUE

       The pmem2_map_delete() function returns 0 on success or a negative error code on failure.

ERRORS

       The pmem2_map_delete() can fail with the following errors:

       • PMEM2_E_MAPPING_NOT_FOUND  - mapping was not found (it was already unmapped or pmem2_map state was cor‐
         rupted)

       On systems other than Windows it can also return -EINVAL from the underlying munmap(2) function.

SEE ALSO

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