libt2n: (gerd) socket reconnect added (incl. unit tests)

[libt2n] / src / socket_client.hxx

diff --git a/src/socket_client.hxx b/src/socket_client.hxx
index 117aa6d..a7fe64e 100644 (file)
--- a/src/socket_client.hxx
+++ b/src/socket_client.hxx
@@ -22,23 +22,61 @@
 #include "client.hxx"
 #include "socket_handler.hxx"
 
+struct sockaddr;
+
 namespace libt2n
 {
+/** @brief a connection from client to server using sockets.
 
-class socket_client_connection : public client_connection, socket_handler
+    Use this class to connect from a client to a server.
+ */
+class socket_client_connection : public client_connection, public socket_handler
 {
+    public:
+        static const int max_retries_default=3;
+        static const long long connect_timeout_usec_default=30000000;
+
     private:
         void real_write(const std::string& data)
-            { socket_handler::write(data); }
+            { socket_write(data); }
+
+        void tcp_connect(int max_retries);
+        void unix_connect(int max_retries);
+        void connect_with_timeout(struct sockaddr *sock_addr,unsigned int sockaddr_size);
+
+        int max_retries;
+        long long connect_timeout_usec;
+
+        std::string path;
+        std::string server;
+        int port;
+
+        std::ostream* get_logstream(log_level_values level)
+            { return client_connection::get_logstream(level); }
 
     public:
-        socket_client_connection(int port, const char* ip="0.0.0.0");
-        socket_client_connection(const char* path, mode_t filemode, const char* user="", const char* group="");
+        socket_client_connection(int _port, const std::string& _server="127.0.0.1", 
+            long long _connect_timeout_usec=connect_timeout_usec_default, 
+            int _max_retries=max_retries_default);
+        socket_client_connection(const std::string& _path,
+            long long _connect_timeout_usec=connect_timeout_usec_default, 
+            int _max_retries=max_retries_default);
 
-        void fill_buffer(long long usec_timeout=-1)
-            { socket_handler::fill_buffer(buffer,usec_timeout); }
+        /** @brief read data from the socket and copy it into 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)
+        */
+        bool fill_buffer(long long usec_timeout=-1, long long *usec_timeout_remaining=NULL)
+            { return socket_handler::fill_buffer(buffer,usec_timeout,usec_timeout_remaining); }
 
         void close();
+
+        void reconnect();
 };
 
 }