+
+#define REPO_SIDEDATA_BLOCK 63
+
+void *
+repo_sidedata_create(Repo *repo, size_t size)
+{
+ return sat_calloc_block(repo->end - repo->start, size, REPO_SIDEDATA_BLOCK);
+}
+
+void *
+repo_sidedata_extend(Repo *repo, void *b, size_t size, Id p, int count)
+{
+ int n = repo->end - repo->start;
+ if (p < repo->start)
+ {
+ int d = repo->start - p;
+ b = sat_extend(b, n, d, size, REPO_SIDEDATA_BLOCK);
+ memmove((char*)b + d * size, b, n * size);
+ memset(b, 0, d * size);
+ n += d;
+ }
+ if (p + count > repo->end)
+ {
+ int d = p + count - repo->end;
+ b = sat_extend(b, n, d, size, REPO_SIDEDATA_BLOCK);
+ memset((char*)b + n * size, 0, d * size);
+ }
+ return b;
+}
+