add load balance round robin for brokers.

trunk/src/kernel/srs_kernel_balance.cpp

@@ -0,0 +1,40 @@
+/*
+ The MIT License (MIT)
+ 
+ Copyright (c) 2013-2015 SRS(simple-rtmp-server)
+ 
+ Permission is hereby granted, free of charge, to any person obtaining a copy of
+ this software and associated documentation files (the "Software"), to deal in
+ the Software without restriction, including without limitation the rights to
+ use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ the Software, and to permit persons to whom the Software is furnished to do so,
+ subject to the following conditions:
+ 
+ The above copyright notice and this permission notice shall be included in all
+ copies or substantial portions of the Software.
+ 
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <srs_kernel_balance.hpp>
+
+SrsLbRoundRobin::SrsLbRoundRobin()
+{
+    index = -1;
+    count = 0;
+}
+
+SrsLbRoundRobin::~SrsLbRoundRobin()
+{
+}
+
+u_int32_t SrsLbRoundRobin::current()
+{
+    return index;
+}
+