summaryrefslogtreecommitdiff
path: root/src/msg.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/msg.hpp')
-rw-r--r--src/msg.hpp52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/msg.hpp b/src/msg.hpp
new file mode 100644
index 0000000..7e22098
--- /dev/null
+++ b/src/msg.hpp
@@ -0,0 +1,52 @@
+/*
+ Copyright (c) 2007-2011 iMatix Corporation
+ Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
+
+ This file is part of 0MQ.
+
+ 0MQ is free software; you can redistribute it and/or modify it under
+ the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ 0MQ is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_MSG_HPP_INCLUDE__
+#define __ZMQ_MSG_HPP_INCLUDE__
+
+#include <stddef.h>
+
+#include "../include/zmq.h"
+
+#include "atomic_counter.hpp"
+
+namespace zmq
+{
+
+ // Shared message buffer. Message data are either allocated in one
+ // continuous block along with this structure - thus avoiding one
+ // malloc/free pair or they are stored in used-supplied memory.
+ // In the latter case, ffn member stores pointer to the function to be
+ // used to deallocate the data. If the buffer is actually shared (there
+ // are at least 2 references to it) refcount member contains number of
+ // references.
+
+ struct msg_content_t
+ {
+ void *data;
+ size_t size;
+ zmq_free_fn *ffn;
+ void *hint;
+ zmq::atomic_counter_t refcnt;
+ };
+
+}
+
+#endif