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refine the protocol io reader writer arch.

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This commit is contained in:
winlin 2014-06-19 10:34:10 +08:00
parent b0e4dc8085
commit 46c1367fe8
2 changed files with 78 additions and 10 deletions
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16
trunk/src/rtmp/srs_protocol_io.cpp
View file

@ -23,6 +23,22 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <srs_protocol_io.hpp>
ISrsBufferWriter::ISrsBufferWriter()
{
}
ISrsBufferWriter::~ISrsBufferWriter()
{
}
ISrsProtocolStatistic::ISrsProtocolStatistic()
{
}
ISrsProtocolStatistic::~ISrsProtocolStatistic()
{
}
ISrsProtocolReader::ISrsProtocolReader()
{
}

72
trunk/src/rtmp/srs_protocol_io.hpp
View file

@ -34,10 +34,63 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <srs_kernel_buffer.hpp>
/**
* the system io reader/writer architecture:
+---------------+ +--------------------+ +---------------+
| IBufferReader | | IStatistic | | IBufferWriter |
+---------------+ +--------------------+ +---------------+
| + read() | | + get_recv_bytes() | | + write() |
+------+--------+ | + get_recv_bytes() | | + writev() |
/ \ +---+--------------+-+ +-------+-------+
| / \ / \ / \
| | | |
+------+------------------+-+ +-----+----------------+--+
| IProtocolReader | | IProtocolWriter |
+---------------------------+ +-------------------------+
| + readfully() | | + set_send_timeout() |
| + set_recv_timeout() | +-------+-----------------+
+------------+--------------+ / \
/ \ |
| |
+--+-----------------------------+-+
| IProtocolReaderWriter |
+----------------------------------+
| + is_never_timeout() |
+----------------------------------+
*/
/**
* the writer for the buffer to write to whatever channel.
*/
class ISrsBufferWriter
{
public:
ISrsBufferWriter();
virtual ~ISrsBufferWriter();
// for protocol
public:
virtual int write(void* buf, size_t size, ssize_t* nwrite) = 0;
virtual int writev(const iovec *iov, int iov_size, ssize_t* nwrite) = 0;
};
/**
* get the statistic of channel.
*/
class ISrsProtocolStatistic
{
public:
ISrsProtocolStatistic();
virtual ~ISrsProtocolStatistic();
// for protocol
public:
virtual int64_t get_recv_bytes() = 0;
virtual int64_t get_send_bytes() = 0;
};
/**
* the reader for the protocol to read from whatever channel.
*/
class ISrsProtocolReader : public ISrsBufferReader
class ISrsProtocolReader : public virtual ISrsBufferReader, public virtual ISrsProtocolStatistic
{
public:
ISrsProtocolReader();
@ -46,13 +99,15 @@ public:
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;
// for handshake.
public:
virtual int read_fully(void* buf, size_t size, ssize_t* nread) = 0;
};
/**
* the writer for the protocol to write to whatever channel.
*/
class ISrsProtocolWriter
class ISrsProtocolWriter : public virtual ISrsBufferWriter, public virtual ISrsProtocolStatistic
{
public:
ISrsProtocolWriter();
@ -61,11 +116,12 @@ public:
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 writev(const iovec *iov, int iov_size, ssize_t* nwrite) = 0;
};
class ISrsProtocolReaderWriter : public ISrsProtocolReader, public ISrsProtocolWriter
/**
* the reader and writer.
*/
class ISrsProtocolReaderWriter : public virtual ISrsProtocolReader, public virtual ISrsProtocolWriter
{
public:
ISrsProtocolReaderWriter();
@ -76,10 +132,6 @@ 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(void* buf, size_t size, ssize_t* nread) = 0;
virtual int write(void* buf, size_t size, ssize_t* nwrite) = 0;
};
#endif