extract protocol io interface to prepare to extract the protocol from underlayer socket.

trunk/src/protocol/srs_protocol_io.hpp

@@ -0,0 +1,87 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2013-2014 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_PROTOCOL_IO_HPP
+#define SRS_PROTOCOL_IO_HPP
+
+/*
+#include <srs_protocol_io.hpp>
+*/
+
+#include <srs_core.hpp>
+
+#include <sys/uio.h>
+
+#include <srs_kernel_buffer.hpp>
+
+/**
+* the reader for the protocol to read from whatever channel.
+*/
+class ISrsProtocolReader : public ISrsBufferReader
+{
+public:
+	ISrsProtocolReader();
+	virtual ~ISrsProtocolReader();
+// for protocol
+public:
+	virtual void set_recv_timeout(int64_t timeout_us) = 0;
+	virtual int64_t get_recv_timeout() = 0;
+	virtual int64_t get_recv_bytes() = 0;
+	virtual int get_recv_kbps() = 0;
+};
+
+/**
+* the writer for the protocol to write to whatever channel.
+*/
+class ISrsProtocolWriter
+{
+public:
+	ISrsProtocolWriter();
+	virtual ~ISrsProtocolWriter();
+// for protocol
+public:
+	virtual void set_send_timeout(int64_t timeout_us) = 0;
+	virtual int64_t get_send_timeout() = 0;
+	virtual int64_t get_send_bytes() = 0;
+	virtual int get_send_kbps() = 0;
+    virtual int writev(const iovec *iov, int iov_size, ssize_t* nwrite) = 0;
+};
+
+class ISrsProtocolReaderWriter : public ISrsProtocolReader, public ISrsProtocolWriter
+{
+public:
+	ISrsProtocolReaderWriter();
+	virtual ~ISrsProtocolReaderWriter();
+// for protocol
+public:
+	/**
+	* whether the specified timeout_us is never timeout.
+	*/
+	virtual bool is_never_timeout(int64_t timeout_us) = 0;
+// for handshake.
+public:
+    virtual int read_fully(const void* buf, size_t size, ssize_t* nread) = 0;
+    virtual int write(const void* buf, size_t size, ssize_t* nwrite) = 0;
+};
+
+#endif