m0_0vec Struct Reference
#include <vec.h>
Collaboration diagram for m0_0vec:
Data Fields | |
| struct m0_bufvec | z_bvec |
| m0_bindex_t * | z_index |
| m0_bindex_t | z_last_buf_idx |
| m0_bcount_t | z_count |
Detailed Description
Zero vector is a full fledged IO vector containing IO extents as well as the IO buffers. An invariant (m0_0vec_invariant) is maintained for m0_0vec. It always checks sanity of zero vector and keeps a bound check on array of IO buffers by checking buffer alignment and count check.
Zero vector is typically allocated by upper layer by following the bounds of network layer (max buffer size, max segments, max seg size) and adds buffers/pages later as and when needed. Size of z_index array is same as array of buffer addresses and array of segment counts.
Field Documentation
◆ z_bvec
| struct m0_bufvec z_bvec |
◆ z_count
| m0_bcount_t z_count |
◆ z_index
| m0_bindex_t* z_index |
◆ z_last_buf_idx
| m0_bindex_t z_last_buf_idx |
The documentation for this struct was generated from the following file:
- lib/vec.h
