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