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+/************************************************************************
+The memory management: the debug code. This is not an independent
+compilation module but is included in mem0mem.*.
+
+(c) 1994, 1995 Innobase Oy
+
+Created 6/8/1994 Heikki Tuuri
+*************************************************************************/
+
+#ifdef UNIV_MEM_DEBUG
+extern mutex_t	mem_hash_mutex;
+extern ulint	mem_current_allocated_memory;
+
+/**********************************************************************
+Initializes an allocated memory field in the debug version. */
+
+void
+mem_field_init(
+/*===========*/
+	byte*	buf,	/* in: memory field */
+	ulint	n);	/* in: how many bytes the user requested */
+/**********************************************************************
+Erases an allocated memory field in the debug version. */
+
+void
+mem_field_erase(
+/*============*/
+	byte*	buf,	/* in: memory field */
+	ulint	n);	/* in: how many bytes the user requested */
+/*******************************************************************
+Initializes a buffer to a random combination of hex BA and BE.
+Used to initialize allocated memory. */
+
+void
+mem_init_buf(
+/*=========*/
+	byte*   buf,    /* in: pointer to buffer */
+	ulint    n);     /* in: length of buffer */
+/*******************************************************************
+Initializes a buffer to a random combination of hex DE and AD.
+Used to erase freed memory.*/
+
+void
+mem_erase_buf(
+/*==========*/
+	byte*   buf,    /* in: pointer to buffer */
+	ulint    n);     /* in: length of buffer */
+/*******************************************************************
+Inserts a created memory heap to the hash table of
+current allocated memory heaps.
+Initializes the hash table when first called. */
+
+void
+mem_hash_insert(
+/*============*/
+	mem_heap_t*	heap,	   /* in: the created heap */
+	const char*	file_name, /* in: file name of creation */
+	ulint		line);	   /* in: line where created */
+/*******************************************************************
+Removes a memory heap (which is going to be freed by the caller)
+from the list of live memory heaps. Returns the size of the heap
+in terms of how much memory in bytes was allocated for the user of
+the heap (not the total space occupied by the heap).
+Also validates the heap.
+NOTE: This function does not free the storage occupied by the
+heap itself, only the node in the list of heaps. */
+
+void
+mem_hash_remove(
+/*============*/
+	mem_heap_t*	heap,	   /* in: the heap to be freed */
+	const char*	file_name, /* in: file name of freeing */
+	ulint		line);	   /* in: line where freed */
+
+
+void
+mem_field_header_set_len(byte* field, ulint len);
+
+ulint
+mem_field_header_get_len(byte* field);
+
+void
+mem_field_header_set_check(byte* field, ulint check);
+
+ulint
+mem_field_header_get_check(byte* field);
+
+void
+mem_field_trailer_set_check(byte* field, ulint check);
+
+ulint
+mem_field_trailer_get_check(byte* field);
+#endif /* UNIV_MEM_DEBUG */