/*
This file is part of GNUnet.
- (C) 2009, 2012 Christian Grothoff (and other contributing authors)
+ (C) 2009-2013 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
*/
struct NotifyList *disconnect_notify_list_tail;
+ /**
+ * Head of linked list of functions to call on connects by clients.
+ */
+ struct NotifyList *connect_notify_list_head;
+
+ /**
+ * Tail of linked list of functions to call on connects by clients.
+ */
+ struct NotifyList *connect_notify_list_tail;
+
/**
* Function to call for access control.
*/
*/
struct GNUNET_CONNECTION_Handle *connection;
+ /**
+ * User context value, manipulated using
+ * 'GNUNET_SERVER_client_{get/set}_user_context' functions.
+ */
+ void *user_context;
+
/**
* ID of task used to restart processing.
*/
*/
unsigned int suspended;
+ /**
+ * Last size given when user context was initialized; used for
+ * sanity check.
+ */
+ size_t user_context_size;
+
/**
* Are we currently in the "process_client_buffer" function (and
* will hence restart the receive job on exit if suspended == 0 once
};
+
/**
- * Scheduler says our listen socket is ready. Process it!
+ * Return user context associated with the given client.
+ * Note: you should probably use the macro (call without the underscore).
*
- * @param cls handle to our server for which we are processing the listen
- * socket
- * @param tc reason why we are running right now
+ * @param client client to query
+ * @param size number of bytes in user context struct (for verification only)
+ * @return pointer to user context
*/
-static void
-process_listen_socket (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+void *
+GNUNET_SERVER_client_get_user_context_ (struct GNUNET_SERVER_Client *client,
+ size_t size)
+{
+ if ((0 == client->user_context_size) &&
+ (NULL == client->user_context))
+ return NULL; /* never set */
+ GNUNET_assert (size == client->user_context_size);
+ return client->user_context;
+}
+
+
+/**
+ * Set user context to be associated with the given client.
+ * Note: you should probably use the macro (call without the underscore).
+ *
+ * @param client client to query
+ * @param ptr pointer to user context
+ * @param size number of bytes in user context struct (for verification only)
+ */
+void
+GNUNET_SERVER_client_set_user_context_ (struct GNUNET_SERVER_Client *client,
+ void *ptr,
+ size_t size)
+{
+ client->user_context_size = size;
+ client->user_context = ptr;
+}
/**
return NULL;
}
/* bind the socket */
- if (GNUNET_OK != GNUNET_NETWORK_socket_bind (sock, serverAddr, socklen))
+ if (GNUNET_OK != GNUNET_NETWORK_socket_bind (sock, serverAddr, socklen, 0))
{
eno = errno;
if (EADDRINUSE != errno)
npos);
GNUNET_free (npos);
}
+ while (NULL != (npos = server->connect_notify_list_head))
+ {
+ npos->callback (npos->callback_cls, NULL);
+ GNUNET_CONTAINER_DLL_remove (server->connect_notify_list_head,
+ server->connect_notify_list_tail,
+ npos);
+ GNUNET_free (npos);
+ }
GNUNET_free (server);
}
"Expected %u bytes for message of type %u, got %u\n",
mh->expected_size, mh->type, size);
GNUNET_break_op (0);
+#else
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Expected %u bytes for message of type %u, got %u\n",
+ mh->expected_size, mh->type, size);
#endif
return GNUNET_SYSERR;
}
if (GNUNET_OK == ret)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Server re-enters receive loop, timeout: %llu.\n",
- client->idle_timeout.rel_value);
+ "Server re-enters receive loop, timeout: %s.\n",
+ GNUNET_STRINGS_relative_time_to_string (client->idle_timeout, GNUNET_YES));
client->receive_pending = GNUNET_YES;
GNUNET_CONNECTION_receive (client->connection,
GNUNET_SERVER_MAX_MESSAGE_SIZE - 1,
if ((NULL == buf) && (0 == available) && (NULL == addr) && (0 == errCode) &&
(GNUNET_YES != client->shutdown_now) && (NULL != server) &&
(GNUNET_YES == GNUNET_CONNECTION_check (client->connection)) &&
- (end.abs_value > now.abs_value))
+ (end.abs_value_us > now.abs_value_us))
{
/* wait longer, timeout changed (i.e. due to us sending) */
LOG (GNUNET_ERROR_TYPE_DEBUG,
struct GNUNET_CONNECTION_Handle *connection)
{
struct GNUNET_SERVER_Client *client;
+ struct NotifyList *n;
client = GNUNET_malloc (sizeof (struct GNUNET_SERVER_Client));
client->connection = connection;
client->mst =
GNUNET_SERVER_mst_create (&client_message_tokenizer_callback, server);
GNUNET_assert (NULL != client->mst);
+ for (n = server->connect_notify_list_head; NULL != n; n = n->next)
+ n->callback (n->callback_cls, client);
+
client->receive_pending = GNUNET_YES;
GNUNET_CONNECTION_receive (client->connection,
GNUNET_SERVER_MAX_MESSAGE_SIZE - 1,
/**
- * Ask the server to stop notifying us whenever a client disconnects.
+ * Ask the server to notify us whenever a client connects.
+ * This function is called whenever the actual network connection
+ * is opened. If the server is destroyed before this
+ * notification is explicitly cancelled, the 'callback' will
+ * once be called with a 'client' argument of NULL to indicate
+ * that the server itself is now gone (and that the callback
+ * won't be called anymore and also can no longer be cancelled).
*
* @param server the server manageing the clients
- * @param callback function to call on disconnect
+ * @param callback function to call on sconnect
+ * @param callback_cls closure for callback
+ */
+void
+GNUNET_SERVER_connect_notify (struct GNUNET_SERVER_Handle *server,
+ GNUNET_SERVER_ConnectCallback callback, void *callback_cls)
+{
+ struct NotifyList *n;
+
+ n = GNUNET_malloc (sizeof (struct NotifyList));
+ n->callback = callback;
+ n->callback_cls = callback_cls;
+ GNUNET_CONTAINER_DLL_insert (server->connect_notify_list_head,
+ server->connect_notify_list_tail,
+ n);
+}
+
+
+/**
+ * Ask the server to stop notifying us whenever a client connects.
+ *
+ * @param server the server manageing the clients
+ * @param callback function to call on connect
* @param callback_cls closure for callback
*/
void
}
+/**
+ * Ask the server to stop notifying us whenever a client disconnects.
+ *
+ * @param server the server manageing the clients
+ * @param callback function to call on disconnect
+ * @param callback_cls closure for callback
+ */
+void
+GNUNET_SERVER_connect_notify_cancel (struct GNUNET_SERVER_Handle *server,
+ GNUNET_SERVER_ConnectCallback callback, void *callback_cls)
+{
+ struct NotifyList *pos;
+
+ for (pos = server->connect_notify_list_head; NULL != pos; pos = pos->next)
+ if ((pos->callback == callback) && (pos->callback_cls == callback_cls))
+ break;
+ if (NULL == pos)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ GNUNET_CONTAINER_DLL_remove (server->connect_notify_list_head,
+ server->connect_notify_list_tail,
+ pos);
+ GNUNET_free (pos);
+}
+
+
/**
* Destroy the connection that is passed in via 'cls'. Used
* as calling 'GNUNET_CONNECTION_destroy' from within a function
projects / oweals / gnunet.git / blobdiff