resolved some bug in the MUX

src/microtcp.c

@@ -810,6 +810,7 @@ static void ready_to_accept(void *data)
 #endif
 
 #ifdef MICROTCP_USING_MUX
+    MICROTCP_DEBUG_LOG("Signaling ACCEPT to muxes");
     signal_events_to_muxes_associated_to_socket(socket, MICROTCP_MUX_ACCEPT);
 #endif
 }
@@ -903,6 +904,7 @@ static void ready_to_recv(void *data)
 #endif
 
 #ifdef MICROTCP_USING_MUX
+    MICROTCP_DEBUG_LOG("Signaling RECV to muxes");
     signal_events_to_muxes_associated_to_socket(socket, MICROTCP_MUX_RECV);
 #endif
 }
@@ -917,6 +919,7 @@ static void ready_to_send(void *data)
 #endif
 
 #ifdef MICROTCP_USING_MUX
+    MICROTCP_DEBUG_LOG("Signaling SEND to muxes");
     signal_events_to_muxes_associated_to_socket(socket, MICROTCP_MUX_SEND);
 #endif
 }
@@ -978,14 +981,12 @@ microtcp_socket_t *microtcp_accept(microtcp_socket_t *socket,
         if (cnd_init(&socket2->something_to_recv) != thrd_success) {
             errcode2 = MICROTCP_ERRCODE_BADCONDVAR;
             push_unlinked_socket_into_free_list(mtcp, socket2);
-            tcp_connection_destroy(connection);
             goto unlock_and_exit;
         }
         if (cnd_init(&socket2->something_to_send) != thrd_success) {
             errcode2 = MICROTCP_ERRCODE_BADCONDVAR;
             cnd_destroy(&socket2->something_to_recv);
             push_unlinked_socket_into_free_list(mtcp, socket2);
-            tcp_connection_destroy(connection);
             goto unlock_and_exit;
         }
 #endif
@@ -1029,15 +1030,13 @@ size_t microtcp_recv(microtcp_socket_t *socket,
             }
             num = tcp_connection_recv(socket->connection, dst, len);
         }
-#else
+#endif
         if (num == 0) {
             if (no_block)
                 errcode2 = MICROTCP_ERRCODE_WOULDBLOCK;
             else
                 errcode2 = MICROTCP_ERRCODE_CANTBLOCK;
-            goto unlock_and_exit;
         }
-#endif
     }
 unlock_and_exit:
     UNLOCK_WHEN_THREADED(mtcp);
@@ -1075,15 +1074,13 @@ size_t microtcp_send(microtcp_socket_t *socket,
             }
             num = tcp_connection_send(socket->connection, src, len);
         }
-#else
+#endif
         if (num == 0) {
             if (no_block)
                 errcode2 = MICROTCP_ERRCODE_WOULDBLOCK;
             else
                 errcode2 = MICROTCP_ERRCODE_CANTBLOCK;
-            goto unlock_and_exit;
         }
-#endif
     }
 unlock_and_exit:
     UNLOCK_WHEN_THREADED(mtcp);
@@ -1393,6 +1390,9 @@ signal_events_to_muxes_associated_to_socket(microtcp_socket_t *socket, int event
         // interested in.
         int newly_triggered_events = events & entry->events_of_interest;
         
+        if (!newly_triggered_events)
+            MICROTCP_DEBUG_LOG("MUX not interested in these events");
+
         // If there are no previously triggered events by this
         // socket and the socket just generated some events the
         // mux is interested in, then we need to move the socket-mux

src/tcp.c

@@ -238,6 +238,8 @@ static void handle_received_data(tcp_connection_t *connection,
 
         emit_segment(connection, true, false, SIZE_MAX);
 
+        TCP_DEBUG_LOG("Received %d bytes", considered);
+
         // Data is ready to be received by the parent application
         if (connection->callback_ready_to_recv)
             connection->callback_ready_to_recv(connection->callback_data);
@@ -340,6 +342,9 @@ void tcp_process_segment(tcp_state_t *state, ip_address_t sender,
 
     tcp_connection_t *connection = find_connection_associated_to_listener(listener, sender, reordered_src_port);
     if (!connection) {
+
+        TCP_DEBUG_LOG("Connection request from port %d", reordered_src_port);
+
         // Something sent to an open listener. 
 
         // We expect it to be a request to connect,
@@ -606,7 +611,7 @@ tcp_connection_t *tcp_listener_accept(tcp_listener_t *listener, void *callback_d
     connection->callback_data = callback_data;
     connection->callback_ready_to_recv = callback_ready_to_recv;
     connection->callback_ready_to_send = callback_ready_to_send;
-
+    
     return connection;
 }
 

src/tcp.h

@@ -107,7 +107,7 @@ struct tcp_connection_t {
                       // byte sent and acknowledged by the peer.
 
     char out_buffer[TCP_OUTPUT_BUFFER_SIZE];
-    char in_buffer[TCP_INPUT_BUFFER_SIZE];
+    char  in_buffer[TCP_INPUT_BUFFER_SIZE];
 };
 
 typedef struct {