- add AST_LIST_HEAD_NOLOCK_STATIC, similar to AST_LIST_HEAD_STATIC, but without the lock!

- store registered channel backends using linked list macros


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@7968 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/linkedlists.h

@@ -128,6 +128,20 @@ struct name {								\
 	.lock = AST_MUTEX_INIT_VALUE,					\
 };
 
+/*!
+  \brief Defines a structure to be used to hold a list of specified type, statically initialized.
+
+  This is the same as AST_LIST_HEAD_STATIC, except without the lock included.
+*/
+#define AST_LIST_HEAD_NOLOCK_STATIC(name, type)				\
+struct name {								\
+	struct type *first;						\
+	struct type *last;						\
+} name = {								\
+	.first = NULL,							\
+	.last = NULL,							\
+};
+
 /*!
   \brief Initializes a list head structure with a specified first entry.
   \param head This is a pointer to the list head structure