From 2fa661c71bbfe37518bdefd7561aca475278b86a Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sat, 25 Jun 2016 17:39:44 +0000
Subject: [PATCH] add GNUNET_MQ_send_copy

---
 src/include/gnunet_mq_lib.h | 12 ++++++++++++
 src/util/mq.c               | 29 +++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/src/include/gnunet_mq_lib.h b/src/include/gnunet_mq_lib.h
index 7bcaa7efc..0d201d36d 100644
--- a/src/include/gnunet_mq_lib.h
+++ b/src/include/gnunet_mq_lib.h
@@ -444,6 +444,18 @@ GNUNET_MQ_send (struct GNUNET_MQ_Handle *mq,
 		struct GNUNET_MQ_Envelope *ev);
 
 
+/**
+ * Send a copy of a message with the give message queue.
+ * Can be called repeatedly on the same envelope.
+ *
+ * @param mq message queue
+ * @param ev the envelope with the message to send.
+ */
+void
+GNUNET_MQ_send_copy (struct GNUNET_MQ_Handle *mq,
+                     const struct GNUNET_MQ_Envelope *ev);
+
+
 /**
  * Cancel sending the message. Message must have been sent with
  * #GNUNET_MQ_send before.  May not be called after the notify sent
diff --git a/src/util/mq.c b/src/util/mq.c
index fb679c18d..b84db002a 100644
--- a/src/util/mq.c
+++ b/src/util/mq.c
@@ -309,6 +309,35 @@ GNUNET_MQ_send (struct GNUNET_MQ_Handle *mq,
 }
 
 
+/**
+ * Send a copy of a message with the give message queue.
+ * Can be called repeatedly on the same envelope.
+ *
+ * @param mq message queue
+ * @param ev the envelope with the message to send.
+ */
+void
+GNUNET_MQ_send_copy (struct GNUNET_MQ_Handle *mq,
+                     const struct GNUNET_MQ_Envelope *ev)
+{
+  struct GNUNET_MQ_Envelope *env;
+  uint16_t msize;
+
+  msize = ntohs (ev->mh->size);
+  env = GNUNET_malloc (sizeof (struct GNUNET_MQ_Envelope) +
+                       msize);
+  env->mh = (struct GNUNET_MessageHeader *) &env[1];
+  env->sent_cb = ev->sent_cb;
+  env->sent_cls = ev->sent_cls;
+  memcpy (&env[1],
+          ev->mh,
+          msize);
+  GNUNET_MQ_send (mq,
+                  env);
+}
+
+
+
 /**
  * Task run to call the send implementation for the next queued
  * message, if any.  Only useful for implementing message queues,
-- 
2.25.1