X-Git-Url: http://xvm.mit.edu/gitweb/invirt/third/libt4.git/blobdiff_plain/dfe8486473094c0769fd1922329c3f0dfd8f43c0..c06ef44e7af1571710fd31dd0ab068dd77b1eb2d:/rpc/connection.h

diff --git a/rpc/connection.h b/rpc/connection.h
index 16b0398..03e92da 100644
--- a/rpc/connection.h
+++ b/rpc/connection.h
@@ -1,104 +1,82 @@
 #ifndef connection_h
 #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 <thread>
-
-#include <map>
-
-#include "pollmgr.h"
-
-class thread_exit_exception : std::exception {
-};
+#include "t4.h"
+#include "poll_mgr.h"
+#include "file.h"
+#include "threaded_log.h"
 
 class connection;
 
-class chanmgr {
+class connection_delegate {
     public:
-        virtual bool got_pdu(connection *c, char *b, int sz) = 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 {
-            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
-        };
+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(char *b, int sz);
-        void write_cb(int s);
-        void read_cb(int s);
+        bool send(const string & b);
+
+        static shared_ptr<connection> to_dst(const sockaddr_in & dst, connection_delegate *mgr, int lossy=0);
 
-        void incref();
-        void decref();
-        int ref();
+        const time_point create_time = steady_clock::now();
+        const file_t fd;
 
-        int compare(connection *another);
     private:
+        void write_cb(int s);
+        void read_cb(int s);
 
         bool readpdu();
         bool writepdu();
 
-        chanmgr *mgr_;
-        const int fd_;
-        bool dead_;
+        connection_delegate * delegate_;
+        bool dead_ = false;
+
+        enum charbuf_status_t { unused, inflight, error };
 
-        charbuf wpdu_;
-        charbuf rpdu_;
+        struct charbuf {
+            charbuf_status_t status;
+            string buf;
+            size_t cursor; // number of bytes written or read so far
+        };
 
-        std::chrono::time_point<std::chrono::steady_clock> create_time_;
+        charbuf wpdu_ = {unused, "", 0};
+        charbuf rpdu_ = {unused, "", 0};
 
-        int waiters_;
-        int refno_;
-        const int lossy_;
+        int lossy_ = 0;
 
         std::mutex m_;
-        std::mutex ref_m_;
-        std::condition_variable send_complete_;
-        std::condition_variable send_wait_;
+        cond send_complete_;
+        cond send_wait_;
 };
 
-class tcpsconn {
+class connection_listener : private aio_callback {
     public:
-        tcpsconn(chanmgr *m1, int port, int lossytest=0);
-        ~tcpsconn();
-        inline int port() { return port_; }
-        void accept_conn();
+        connection_listener(connection_delegate * delegate, in_port_t port, int lossytest=0);
+        ~connection_listener();
+        inline in_port_t port() { return port_; }
     private:
-        int port_;
+        void write_cb(int) {}
+        void read_cb(int s);
+
+        in_port_t port_;
         std::mutex m_;
-        std::thread th_;
-        int pipe_[2];
 
-        int tcp_; //file desciptor for accepting connection
-        chanmgr *mgr_;
+        socket_t tcp_; // listens for connections
+        connection_delegate * delegate_;
         int lossy_;
-        std::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