From: idgay <idgay>
Date: Fri, 19 Sep 2008 22:12:32 +0000 (+0000)
Subject: add reset_tmsg from Eric Decker (cire831@gmail.com)
X-Git-Tag: rc_6_tinyos_2_1_1~617
X-Git-Url: https://oss.titaniummirror.com/gitweb/?p=tinyos-2.x.git;a=commitdiff_plain;h=aa83f63c072f04cc692312cea1b0f579d8214044

add reset_tmsg from Eric Decker (cire831@gmail.com)
---

diff --git a/support/sdk/c/sf/message.c b/support/sdk/c/sf/message.c
index 9739c15a..9aa0c32e 100644
--- a/support/sdk/c/sf/message.c
+++ b/support/sdk/c/sf/message.c
@@ -36,6 +36,14 @@ void free_tmsg(tmsg_t *msg)
     free(msg);
 }
 
+void reset_tmsg(tmsg_t *msg, void *packet, size_t len)
+{
+  if (!msg)
+    return;
+  msg->data = packet;
+  msg->len  = len;
+}
+
 void *tmsg_data(tmsg_t *msg)
 {
   return msg->data;
diff --git a/support/sdk/c/sf/message.h b/support/sdk/c/sf/message.h
index 8655f7b3..d1acc5c6 100644
--- a/support/sdk/c/sf/message.h
+++ b/support/sdk/c/sf/message.h
@@ -43,6 +43,11 @@ tmsg_t *new_tmsg(void *packet, size_t len);
  */
 void free_tmsg(tmsg_t *msg);
 
+/** 
+ * Reuse an existing tmsg
+ */
+void reset_tmsg(tmsg_t *msg, void *packet, size_t len) ;
+
 /**
  * Return underlying array of a message buffer
  */