move malloc pools to mempool.cc

No reason to expose it in the headers.

Reviewed-by: Nadav Har'El <nyh@cloudius-systems.com>
Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

core/mempool.cc

@@ -347,6 +347,13 @@ pool* pool::from_object(void* object)
     return header->owner;
 }
 
+class malloc_pool : public pool {
+public:
+    malloc_pool();
+private:
+    static size_t compute_object_size(unsigned pos);
+};
+
 malloc_pool malloc_pools[ilog2_roundup_constexpr(page_size) + 1]
     __attribute__((init_priority((int)init_prio::malloc_pools)));
 

include/osv/mempool.hh

@@ -91,13 +91,6 @@ struct pool::free_object {
     free_object* next;
 };
 
-class malloc_pool : public pool {
-public:
-    malloc_pool();
-private:
-    static size_t compute_object_size(unsigned pos);
-};
-
 struct page_range {
     explicit page_range(size_t size);
     size_t size;