MINOR: connection: add a minimal transport layer registration system
There are still a lot of #ifdef USE_OPENSSL in the code (still 43
occurences) because we never know if we can directly access ssl_sock
or not. This patch attacks the problem differently by providing a
way for transport layers to register themselves and for users to
retrieve the pointer. Unregistered transport layers will point to NULL
so it will be easy to check if SSL is registered or not. The mechanism
is very inexpensive as it relies on a two-entries array of pointers,
so the performance will not be affected.
diff --git a/src/connection.c b/src/connection.c
index 7a9f391..093b8a9 100644
--- a/src/connection.c
+++ b/src/connection.c
@@ -27,6 +27,7 @@
#endif
struct pool_head *pool2_connection;
+struct xprt_ops *registered_xprt[XPRT_ENTRIES] = { NULL, };
/* perform minimal intializations, report 0 in case of error, 1 if OK. */
int init_connection()