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() | PMDK Programmer's Manual | () |
NAME¶
pmem2_map_delete() - deletes a mapping
SYNOPSIS¶
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#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 describing it and writes a NULL value to map_ptr. If the function fails, the map_ptr variable and the map object 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 corrupted)
- •
- -EINVAL - from the underlying munmap(2) function.
SEE ALSO¶
2024-05-23 | PMDK - |