refine http request parse. 2.0.132.

trunk/src/protocol/srs_rtmp_buffer.cpp

@@ -62,6 +62,16 @@ SrsFastBuffer::SrsFastBuffer()
     p = end = buffer;
 }
 
+int SrsFastBuffer::size()
+{
+    return end - p;
+}
+
+char* SrsFastBuffer::bytes()
+{
+    return p;
+}
+
 void SrsFastBuffer::set_buffer(int buffer_size)
 {
     // the user-space buffer size limit to a max value.

trunk/src/protocol/srs_rtmp_buffer.hpp

@@ -85,6 +85,16 @@ public:
     SrsFastBuffer();
     virtual ~SrsFastBuffer();
 public:
+    /**
+    * get the size of current bytes in buffer.
+    */
+    virtual int size();
+    /**
+    * get the current bytes in buffer.
+    * @remark user should use read_slice() if possible, 
+    *       the bytes() is used to test bytes, for example, to detect the bytes schema.
+    */
+    virtual char* bytes();
     /**
     * create buffer with specifeid size.
     * @param buffer the size of buffer.
@@ -110,6 +120,8 @@ public:
     * skip some bytes in buffer.
     * @param size the bytes to skip. positive to next; negative to previous.
     * @remark assert buffer already grow(size).
+    * @remark always use read_slice to consume bytes, which will reset for EOF.
+    *       while skip never consume bytes.
     */
     virtual void skip(int size);
 public: