for #293, move the simple buffer to kernel.

trunk/src/kernel/srs_kernel_buffer.hpp

@@ -0,0 +1,72 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2013-2015 winlin
+
+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.
+*/
+
+#ifndef SRS_KERNEL_BUFFER_HPP
+#define SRS_KERNEL_BUFFER_HPP
+
+/*
+#include <srs_kernel_buffer.hpp>
+*/
+
+#include <srs_core.hpp>
+
+#include <vector>
+
+/**
+* the simple buffer use vector to append bytes,
+* it's for hls and http, and need to be refined in future.
+*/
+class SrsSimpleBuffer
+{
+private:
+    std::vector<char> data;
+public:
+    SrsSimpleBuffer();
+    virtual ~SrsSimpleBuffer();
+public:
+    /**
+    * get the length of buffer. empty if zero.
+    * @remark assert length() is not negative.
+    */
+    virtual int length();
+    /**
+    * get the buffer bytes.
+    * @return the bytes, NULL if empty.
+    */
+    virtual char* bytes();
+    /**
+    * erase size of bytes from begin.
+    * @param size to erase size of bytes. 
+    *       clear if size greater than or equals to length()
+    * @remark ignore size is not positive.
+    */
+    virtual void erase(int size);
+    /**
+    * append specified bytes to buffer.
+    * @param size the size of bytes
+    * @remark assert size is positive.
+    */
+    virtual void append(const char* bytes, int size);
+};
+
+#endif