From b1dbc2047efeaf70200f880e4931c77addd8cce6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Moritz=20=27Morty=27=20Str=C3=BCbe?= <morty@gmx.net>
Date: Mon, 7 Jan 2013 12:47:49 +0100
Subject: [PATCH] Add mesh_ready() to mesh mesh_ready checkes whether a packet
 is queued. This allows to avoid packet loss at application level.

---
 core/net/rime/mesh.c | 7 +++++++
 core/net/rime/mesh.h | 8 ++++++++
 2 files changed, 15 insertions(+)

diff --git a/core/net/rime/mesh.c b/core/net/rime/mesh.c
index 39231cc3e..f8ea14b51 100644
--- a/core/net/rime/mesh.c
+++ b/core/net/rime/mesh.c
@@ -201,4 +201,11 @@ mesh_send(struct mesh_conn *c, const rimeaddr_t *to)
   return 1;
 }
 /*---------------------------------------------------------------------------*/
+int
+mesh_ready(struct mesh_conn *c)
+{
+  return (c->queued_data == NULL);
+}
+
+
 /** @} */
diff --git a/core/net/rime/mesh.h b/core/net/rime/mesh.h
index 1bcf9f34e..394e428a5 100644
--- a/core/net/rime/mesh.h
+++ b/core/net/rime/mesh.h
@@ -133,6 +133,14 @@ void mesh_close(struct mesh_conn *c);
  */
 int mesh_send(struct mesh_conn *c, const rimeaddr_t *dest);
 
+/**
+ * \brief      Test if mesh is ready to send a packet (or packet is queued)
+ * \param c    The mesh connection on which is to be tested
+ * \retval 0   Packet queued
+ * \retval !0  Ready
+ */
+int mesh_ready(struct mesh_conn *c);
+
 #endif /* __MESH_H__ */
 /** @} */
 /** @} */