Fork us on GitHub Follow us on Facebook Follow us on Twitter

Changeset b79d450 in mainline for uspace/lib/libblock/libblock.c


Ignore:
Timestamp:
2010-01-27T20:35:49Z (12 years ago)
Author:
Jiri Svoboda <jiri@…>
Branches:
lfn, master
Children:
fb6f1a5
Parents:
fccc236 (diff), 95e6c4f (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.
Message:

Merge mainline changes.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • uspace/lib/libblock/libblock.c

    rfccc236 rb79d450  
    8787static int write_blocks(devcon_t *devcon, bn_t ba, size_t cnt);
    8888static int get_block_size(int dev_phone, size_t *bsize);
     89static int get_num_blocks(int dev_phone, bn_t *nblocks);
    8990
    9091static devcon_t *devcon_search(dev_handle_t dev_handle)
     
    714715
    715716        memcpy(devcon->comm_area, data, devcon->pblock_size * cnt);
    716         rc = read_blocks(devcon, ba, cnt);
     717        rc = write_blocks(devcon, ba, cnt);
    717718
    718719        fibril_mutex_unlock(&devcon->comm_area_lock);
     
    736737       
    737738        return get_block_size(devcon->dev_phone, bsize);
     739}
     740
     741/** Get number of blocks on device.
     742 *
     743 * @param dev_handle    Device handle of the block device.
     744 * @param nblocks       Output number of blocks.
     745 *
     746 * @return              EOK on success or negative error code on failure.
     747 */
     748int block_get_nblocks(dev_handle_t dev_handle, bn_t *nblocks)
     749{
     750        devcon_t *devcon;
     751
     752        devcon = devcon_search(dev_handle);
     753        assert(devcon);
     754       
     755        return get_num_blocks(devcon->dev_phone, nblocks);
    738756}
    739757
     
    789807}
    790808
     809/** Get total number of blocks on block device. */
     810static int get_num_blocks(int dev_phone, bn_t *nblocks)
     811{
     812        ipcarg_t nb_l, nb_h;
     813        int rc;
     814
     815        rc = async_req_0_2(dev_phone, BD_GET_NUM_BLOCKS, &nb_l, &nb_h);
     816        if (rc == EOK) {
     817                *nblocks = (bn_t) MERGE_LOUP32(nb_l, nb_h);
     818        }
     819
     820        return rc;
     821}
     822
    791823/** @}
    792824 */
Note: See TracChangeset for help on using the changeset viewer.