71 lines
1.2 KiB
C
71 lines
1.2 KiB
C
|
/**
|
||
|
|
* Class describing an AMQP header frame
|
||
|
|
*
|
||
|
|
* @copyright 2014 Copernica BV
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set up namespace
|
||
|
|
*/
|
||
|
|
namespace AMQP {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Class implementation
|
||
|
|
*/
|
||
|
|
class HeaderFrame : public ExtFrame
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
/**
|
||
|
|
* Construct a header frame
|
||
|
|
* @param channel Channel ID
|
||
|
|
* @param size Payload size
|
||
|
|
*/
|
||
|
|
HeaderFrame(uint16_t channel, uint32_t size) : ExtFrame(channel, size + 2) {} // + size of classID (2bytes)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Construct based on incoming data
|
||
|
|
* @param frame Incoming frame
|
||
|
|
*/
|
||
|
|
HeaderFrame(ReceivedFrame &frame) : ExtFrame(frame) {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Encode a header frame to a string buffer
|
||
|
|
*
|
||
|
|
* @param buffer buffer to write frame to
|
||
|
|
*/
|
||
|
|
virtual void fill(OutBuffer& buffer) const
|
||
|
|
{
|
||
|
|
ExtFrame::fill(buffer);
|
||
|
|
|
||
|
|
// add type
|
||
|
|
buffer.add(classID());
|
||
|
|
}
|
||
|
|
|
||
|
|
public:
|
||
|
|
/**
|
||
|
|
* Destructor
|
||
|
|
*/
|
||
|
|
virtual ~HeaderFrame() {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the message type
|
||
|
|
* @return uint8_t
|
||
|
|
*/
|
||
|
|
virtual uint8_t type() const override
|
||
|
|
{
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Class id
|
||
|
|
* @return uint16_t
|
||
|
|
*/
|
||
|
|
virtual uint16_t classID() const = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* end namespace
|
||
|
|
*/
|
||
|
|
}
|
||
|
|
|