Write *len* bytes from *buf* into the *oid* object. The value of
*len* must be <= UINT_MAX/2.
The object is filled with the provided data. If the object exists,
it is atomically truncated and then written.
@param io the io context in which the write will occur
@param oid name of the object
@param buf data to write
@param len length of the data, in bytes
@returns 0 on success, negative error code on failure
Write *len* bytes from *buf* into the *oid* object. The value of *len* must be <= UINT_MAX/2.
The object is filled with the provided data. If the object exists, it is atomically truncated and then written.
@param io the io context in which the write will occur @param oid name of the object @param buf data to write @param len length of the data, in bytes @returns 0 on success, negative error code on failure