+ odr_memblock *r, *l;
+
+ for (r = freelist, l = 0; r; l = r, r = r->next)
+ if (r->size >= size)
+ break;
+ if (r)
+ if (l)
+ l->next = r->next;
+ else
+ freelist = r->next;
+ else
+ {
+ int get = ODR_MEM_CHUNK;
+
+ if (get < size)
+ get = size;
+ if (!(r = malloc(sizeof(*r))))
+ return 0;
+ if (!(r->buf = malloc(r->size = get)))
+ return 0;
+ }
+ r->top = 0;
+ return r;
+}
+
+void odr_release_mem(odr_memblock *p)
+{
+ odr_memblock *t;
+
+ while (p)
+ {
+ t = p;
+ p = p->next;
+ free_block(t);
+ }
+}
+
+void *odr_malloc(ODR o, int size)
+{
+ struct odr_memblock *p = o->mem;
+ char *r;
+
+ if (!p || p->size - p->top < size)
+ if (!(p = get_block(size)))
+ {
+ o->error = OMEMORY;
+ return 0;
+ }
+ else
+ {
+ p->next = o->mem;
+ o->mem = p;
+ }
+ r = p->buf + p->top;
+ p->top += (size + (sizeof(long) - 1)) & ~(sizeof(long) - 1);
+ return r;