MINOR: memory: add a callback function to create a pool
The new function create_pool_callback() takes 3 args including the
return pointer, and creates a pool with the specified name and size.
In case of allocation error, it emits an error message and returns.
The new macro REGISTER_POOL() registers a callback using this function
and will be usable to request some pools creation and guarantee that
the allocation will be checked. An even simpler approach is to use
DECLARE_POOL() and DECLARE_STATIC_POOL() which declare and register
the pool.
diff --git a/include/common/memory.h b/include/common/memory.h
index 57d6ba6..5bed602 100644
--- a/include/common/memory.h
+++ b/include/common/memory.h
@@ -32,6 +32,7 @@
#include <common/config.h>
#include <common/mini-clist.h>
#include <common/hathreads.h>
+#include <common/initcall.h>
#ifndef DEBUG_DONT_SHARE_POOLS
#define MEM_F_SHARED 0x1
@@ -116,6 +117,21 @@
* is available for a new creation.
*/
struct pool_head *create_pool(char *name, unsigned int size, unsigned int flags);
+void create_pool_callback(struct pool_head **ptr, char *name, unsigned int size);
+
+/* This registers a call to create_pool_callback(ptr, name, size) */
+#define REGISTER_POOL(ptr, name, size) \
+ INITCALL3(STG_POOL, create_pool_callback, (ptr), (name), (size))
+
+/* This macro declares a pool head <ptr> and registers its creation */
+#define DECLARE_POOL(ptr, name, size) \
+ struct pool_head *(ptr) = NULL; \
+ REGISTER_POOL(&ptr, name, size)
+
+/* This macro declares a static pool head <ptr> and registers its creation */
+#define DECLARE_STATIC_POOL(ptr, name, size) \
+ static struct pool_head *(ptr); \
+ REGISTER_POOL(&ptr, name, size)
/* Dump statistics on pools usage.
*/