#include <string>
+#include <netinet/in.h>
+
+#include "types.hxx"
+
namespace libt2n
{
+/** @brief a connection between client and server. abstact.
+*/
class connection
{
private:
protected:
connection()
- { closed=false; }
+ { closed=false; }
std::string buffer;
- typedef unsigned int packet_size_indicator;
+ typedef uint32_t packet_size_indicator;
packet_size_indicator bytes_available();
virtual void real_write(const std::string& data)=0;
+ virtual std::ostream* get_logstream(log_level_values level)=0;
+
public:
- ~connection()
+ virtual ~connection()
{ close(); }
+ /// is this connection closed or not
bool is_closed()
{ return closed; }
+ /// close this connection
virtual void close()
{ closed=true; }
- virtual void fill_buffer(long long usec_timeout=-1)=0;
+ /** @brief look for new data and store it in the local buffer
+ @param usec_timeout wait until new data is found, max timeout usecs.
+ -1: wait endless
+ 0: return instantly
+ @param usec_timeout_remaining if non-NULL the function will write the
+ not used time to the given target
+ @retval true if new data was found (does not mean that the received data
+ is a complete packet though)
+ */
+ virtual bool fill_buffer(long long usec_timeout=-1,long long* usec_timeout_remaining=NULL)=0;
+
bool get_packet(std::string& data);
+
+ unsigned int peek_packet(std::string& data);
+
+ /// returns true if a complete data packet is in the buffer. retrieve it with get_packet().
bool packet_available()
{ return bytes_available(); }