Compute the version number dynamically

[muddle-interpreter.git] / src / alloc.c

diff --git a/src/alloc.c b/src/alloc.c
index 7209060bf612d300620c0679c9274da596496acf..ccd96913fbff18e8b8bbd2ee673086a9f692595f 100644 (file)
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -1,5 +1,5 @@
 /*
-Copyright (C) 2017 Keziah Wesley
+Copyright (C) 2017-2018 Keziah Wesley
 
 You can redistribute and/or modify this file under the terms of the
 GNU Affero General Public License as published by the Free Software
@@ -17,31 +17,103 @@ License along with this file. If not, see
 */
 
 #include "alloc.h"
+#include "atom.h"
 #include "object.h"
 
+extern pool_object *pool;
+extern pool_ptr ptop;
+
+extern object *vhp_base;
+extern heap_ptr vhp;
+
+pool_ptr
+pool_alloc (uint32_t len)
+{
+  pool_ptr p = ptop;
+  ptop += len;
+  return p;
+}
+
+pool_object *
+POOL_OBJECT (pool_ptr p)
+{
+  if (!p)
+    return (pool_object *) 0;
+  return &pool[p];
+}
+
+pool_ptr
+pool_copy_array (const pool_object * objs, uint32_t len)
+{
+  if (!len)
+    return 0;
+  pool_ptr p = pool_alloc (len);
+  for (int i = 0; i < len; i++)
+    {
+      pool[p + i] = (pool_object)
+      {
+      .type = objs[i].type,.rest = p + i + 1,.val = objs[i].val};
+    }
+  pool[p + len - 1].rest = 0;
+  return p;
+}
+
 pool_ptr
 pool_copy_array_rev (const pool_object * objs, uint32_t len)
 {
   if (!len)
     return 0;
-  pool_object *xs = pool_alloc (len);
-  for (int i = 0; i < (int) len; i++)
+  pool_ptr p = pool_alloc (len);
+  for (int i = 0; i < len; i++)
     {
-      xs[i].type = objs[len - 1 - (unsigned) i].type;
-      xs[i].rest = POOL_PTR (&xs[i + 1]);
-      xs[i].val = objs[len - 1 - (unsigned) i].val;
+      pool[p + i] = (pool_object)
+      {
+      .type = objs[len - i - 1].type,.rest = p + i + 1,.val =
+         objs[len - i - 1].val};
     }
-  xs[len - 1].rest = 0;
-  return POOL_PTR (xs);
+  pool[p + len - 1].rest = 0;
+  return p;
+}
+
+object *
+HEAP_OBJECT (heap_ptr p)
+{
+  assert (p > 0);
+  return &vhp_base[p];
+}
+
+heap_ptr
+heap_alloc (uint32_t len)
+{
+  enum
+  { DOPE_LEN = 1 };
+  heap_ptr p = vhp;
+  vhp += len + DOPE_LEN;
+  return p;
 }
 
 heap_ptr
 heap_copy_array_rev (const object * objs, uint32_t len)
 {
-  object *xs = heap_alloc (len);
+  heap_ptr p = heap_alloc (len);
+  object *xs = HEAP_OBJECT (p);
   for (int i = 0; i < (int) len; i++)
     {
       xs[i] = objs[len - 1 - (unsigned) i];
     }
-  return HEAP_PTR_OF_OBJECT (xs);
+  return p;
+}
+
+uv_val *
+UV_VAL (heap_ptr p)
+{
+  assert (p > 0);
+  return (uv_val *) & vhp_base[p];
+}
+
+atom_body *
+ATOM_BODY (heap_ptr p)
+{
+  assert (p);
+  return (atom_body *) (&vhp_base[p]);
 }