#define connection_h
#include "types.h"
-#include <sys/types.h>
#include <arpa/inet.h>
#include <netinet/in.h>
-#include "pollmgr.h"
+#include "poll_mgr.h"
#include "file.h"
-constexpr size_t size_t_max = numeric_limits<size_t>::max();
-
-class thread_exit_exception : exception {};
-
class connection;
-class chanmgr {
+class connection_delegate {
public:
- virtual bool got_pdu(connection *c, const string & b) = 0;
- virtual ~chanmgr() {}
+ virtual bool got_pdu(const shared_ptr<connection> & c, const string & b) = 0;
+ virtual ~connection_delegate();
};
-class connection : public aio_callback {
- public:
- struct charbuf {
- string buf;
- size_t solong = 0; // number of bytes written or read so far
- };
+using std::chrono::steady_clock;
+using time_point = std::chrono::time_point<steady_clock>;
- connection(chanmgr *m1, int f1, int lossytest=0);
+class connection : private aio_callback, public std::enable_shared_from_this<connection> {
+ public:
+ connection(connection_delegate * delegate, socket_t && f1, int lossytest=0);
~connection();
- int channo() { return fd_; }
- bool isdead();
- void closeconn();
+ bool isdead() { return dead_; }
bool send(const string & b);
- void write_cb(int s);
- void read_cb(int s);
- void incref();
- void decref();
- int ref() { lock rl(ref_m_); return refno_; }
+ static shared_ptr<connection> to_dst(const sockaddr_in & dst, connection_delegate *mgr, int lossy=0);
- int compare(connection *another);
+ const time_point create_time = steady_clock::now();
+ const file_t fd;
private:
+ void write_cb(int s);
+ void read_cb(int s);
bool readpdu();
bool writepdu();
- chanmgr *mgr_;
- const file_t fd_;
+ connection_delegate * delegate_;
bool dead_ = false;
- charbuf wpdu_;
- charbuf rpdu_;
+ enum charbuf_status_t { unused, inflight, error };
- time_point<steady_clock> create_time_;
+ struct charbuf {
+ charbuf_status_t status;
+ string buf;
+ size_t cursor; // number of bytes written or read so far
+ };
+
+ charbuf wpdu_ = {unused, "", 0};
+ charbuf rpdu_ = {unused, "", 0};
- int waiters_ = 0;
- int refno_ = 1;
int lossy_ = 0;
- mutex m_;
- mutex ref_m_;
+ std::mutex m_;
cond send_complete_;
cond send_wait_;
};
-class tcpsconn {
+class connection_listener : private aio_callback {
public:
- tcpsconn(chanmgr *m1, in_port_t port, int lossytest=0);
- ~tcpsconn();
+ connection_listener(connection_delegate * delegate, in_port_t port, int lossytest=0);
+ ~connection_listener();
inline in_port_t port() { return port_; }
- void accept_conn();
private:
+ void write_cb(int) {}
+ void read_cb(int s);
+
in_port_t port_;
- mutex m_;
- thread th_;
- file_t pipe_[2];
+ std::mutex m_;
socket_t tcp_; // listens for connections
- chanmgr *mgr_;
+ connection_delegate * delegate_;
int lossy_;
- map<int, connection *> conns_;
-
- void process_accept();
+ std::map<int, shared_ptr<connection>> conns_;
};
-
-struct bundle {
- bundle(chanmgr *m, int s, int l):mgr(m),tcp(s),lossy(l) {}
- chanmgr *mgr;
- int tcp;
- int lossy;
-};
-
-connection *connect_to_dst(const sockaddr_in &dst, chanmgr *mgr, int lossy=0);
#endif