Add object headers to most structures.

Rev: src/lsh_types.h:1.9
Rev: src/randomness.h:1.4
Rev: src/read_line.h:1.7
Rev: src/write_buffer.h:1.6

src/lsh_types.h

@@ -79,9 +79,27 @@ do {						\
 #define MIN(a, b) (((a)>(b)) ? (b) : (a))
 #define MAX(a, b) (((a)>(b)) ? (b) : (a))
 
-/* Generic packet */
+/* Generic object */
+
+#ifdef DEBUG_ALLOC
+
+struct lsh_object
+{
+  int type;  /* Zero for objects that are not allocated on the heap. */
+};
+
+#define STATIC_HEADER { 0 },
+
+#else   /* !DEBUG_ALLOC */
+struct lsh_object {};
+#define STATIC_HEADER
+
+#endif  /* !DEBUG_ALLOC */
+
 struct lsh_string
 {
+  struct lsh_object header;
+  
   UINT32 sequence_number; 
   UINT32 length;
   UINT8 data[1];
@@ -92,7 +110,9 @@ struct callback;
 typedef int (*callback_f)(struct callback *closure);
 struct callback
 {
-  callback_f f;
+  struct lsh_object header;
+  
+  int (*f)(struct callback *closure);
 };
 
 #define CALLBACK(c) ((c)->f(c))

src/randomness.h

@@ -30,6 +30,8 @@
 
 struct randomness
 {
+  struct lsh_object header;
+  
   void (*random)(struct randomness **closure, UINT32 length, UINT8 *dst);
 };
 

src/read_line.h

@@ -34,6 +34,8 @@
 /* May store a new handler into *h. */
 struct line_handler
 {
+  struct lsh_object header;
+  
   struct read_handler * (*handler)(struct line_handler **h,
 				   UINT32 length,
 				   UINT8 *line);

src/write_buffer.h

@@ -31,6 +31,8 @@
 /* For the packet queue */
 struct node
 {
+  struct lsh_object header;
+  
   struct node *next;
   struct node *prev;
   struct lsh_string *packet;