Changeset a18bd22 in mainline

Timestamp:

2011-08-14T07:57:40Z (13 years ago)

Author:

Oleg Romanenko <romanenko.oleg@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

245b7945

Parents:

f7d90eb

Message:

exFAT: implement bitmap_append_clusters

File:

• uspace/srv/fs/exfat/exfat_fat.c (modified) (1 diff)

uspace/srv/fs/exfat/exfat_fat.c

@@ -520 +520 @@
     exfat_cluster_t count)
 {
-        /* TODO */
-        return EOK;
+        if (nodep->firstc == 0) {
+                return bitmap_alloc_clusters(bs, nodep->idx->devmap_handle, 
+                    &nodep->firstc, count);
+        } else {
+                exfat_cluster_t lastc, clst;
+                lastc = nodep->firstc + ROUND_UP(nodep->size, BPC(bs)) / BPC(bs) - 1;
+
+                clst = lastc+1;
+                while (bitmap_is_free(bs, nodep->idx->devmap_handle, clst) == EOK) {
+                        if ((clst - lastc) == count){
+                                return bitmap_set_clusters(bs, nodep->idx->devmap_handle, 
+                                    lastc+1, count);
+                        }
+                        else
+                                clst++;
+                }
+                return ENOSPC;
+        }
 }