endpoints: add transport ep stop functions

This should allow us to stop the endpoints early, without freeing
them.  This ensures that pipe creation has ended before we start
tearing down pipes.

1 files changed, 12 insertions, 6 deletions

diff --git a/src/sp/transport.h b/src/sp/transport.h
index 10207f28..6d1e0d4a 100644
--- a/src/sp/transport.h
+++ b/src/sp/transport.h
@@ -43,11 +43,14 @@ struct nni_sp_dialer_ops {
 	// NNG_ECONNFAILED, NNG_ETIMEDOUT, and NNG_EPROTO.
 	void (*d_connect)(void *, nni_aio *);
 
-	// d_close stops the dialer from operating altogether.  It
-	// does not affect pipes that have already been created.  It is
-	// nonblocking.
+	// d_close stops the dialer from operating altogether.
+	// It is nonblocking.
 	void (*d_close)(void *);
 
+	// d_stop is close, but also waits for the operation to be
+	// be fully stopped.
+	void (*d_stop)(void *);
+
 	// d_getopt is used to obtain an option.
 	int (*d_getopt)(void *, const char *, void *, size_t *, nni_type);
 
@@ -93,11 +96,14 @@ struct nni_sp_listener_ops {
 	// l_accept accepts an inbound connection.
 	void (*l_accept)(void *, nni_aio *);
 
-	// l_close stops the listener from operating altogether.  It
-	// does not affect pipes that have already been created.  It is
-	// nonblocking.
+	// l_close stops the listener from operating altogether.
+	// It is nonblocking.
 	void (*l_close)(void *);
 
+	// l_stop is close, but also waits for the operation to be
+	// be fully stopped.
+	void (*l_stop)(void *);
+
 	// l_getopt is used to obtain an option.
 	int (*l_getopt)(void *, const char *, void *, size_t *, nni_type);