(no commit message)
[oweals/gnunet.git] / src / include / gnunet_testing_lib.h
index 9d85f3af9861f20e571df5f11fdec1ac17b8b05e..e3e10ce45fd8b1474707f395b1b8328a8610a99d 100644 (file)
@@ -88,10 +88,12 @@ struct GNUNET_TESTING_Host
  * @param d handle for the daemon
  * @param emsg error message (NULL on success)
  */
-typedef void (*GNUNET_TESTING_NotifyHostkeyCreated)(void *cls,
-                                                    const struct GNUNET_PeerIdentity *id,
-                                                    struct GNUNET_TESTING_Daemon *d,
-                                                    const char *emsg);
+typedef void (*GNUNET_TESTING_NotifyHostkeyCreated) (void *cls,
+                                                     const struct
+                                                     GNUNET_PeerIdentity * id,
+                                                     struct
+                                                     GNUNET_TESTING_Daemon * d,
+                                                     const char *emsg);
 
 /**
  * Prototype of a function that will be called whenever
@@ -103,12 +105,14 @@ typedef void (*GNUNET_TESTING_NotifyHostkeyCreated)(void *cls,
  * @param d handle for the daemon
  * @param emsg error message (NULL on success)
  */
-typedef void (*GNUNET_TESTING_NotifyDaemonRunning)(void *cls,
-                                                  const struct GNUNET_PeerIdentity *id,
-                                                  const struct GNUNET_CONFIGURATION_Handle *cfg,
-                                                  struct GNUNET_TESTING_Daemon *d,
-                                                  const char *emsg);
-
+typedef void (*GNUNET_TESTING_NotifyDaemonRunning) (void *cls,
+                                                    const struct
+                                                    GNUNET_PeerIdentity * id,
+                                                    const struct
+                                                    GNUNET_CONFIGURATION_Handle
+                                                    * cfg,
+                                                    struct GNUNET_TESTING_Daemon
+                                                    * d, const char *emsg);
 
 /**
  * Handle to an entire testbed of GNUnet peers.
@@ -203,8 +207,7 @@ enum GNUNET_TESTING_StartPhase
  * @param cls closure
  * @param emsg NULL on success
  */
-typedef void (*GNUNET_TESTING_NotifyCompletion)(void *cls,
-                                                const char *emsg);
+typedef void (*GNUNET_TESTING_NotifyCompletion) (void *cls, const char *emsg);
 
 /**
  * Prototype of a function that will be called with the
@@ -213,8 +216,8 @@ typedef void (*GNUNET_TESTING_NotifyCompletion)(void *cls,
  * @param cls closure
  * @param num_connections the number of connections created
  */
-typedef void (*GNUNET_TESTING_NotifyConnections)(void *cls,
-                                                unsigned int num_connections);
+typedef void (*GNUNET_TESTING_NotifyConnections) (void *cls,
+                                                  unsigned int num_connections);
 
 /**
  * Handle for a GNUnet daemon (technically a set of
@@ -301,63 +304,71 @@ struct GNUNET_TESTING_Daemon
   void *update_cb_cls;
 
   /**
-   * Identity of this peer (once started).
+   * PID of the process that we started last.
    */
-  struct GNUNET_PeerIdentity id;
+  struct GNUNET_OS_Process *proc;
 
   /**
-   * Flag to indicate that we've already been asked
-   * to terminate (but could not because some action
-   * was still pending).
+   * Handle to the server.
    */
-  int dead;
+  struct GNUNET_CORE_Handle *server;
 
   /**
-   * GNUNET_YES if the hostkey has been created
-   * for this peer, GNUNET_NO otherwise.
+   * Handle to the transport service of this peer
    */
-  int have_hostkey;
+  struct GNUNET_TRANSPORT_Handle *th;
 
   /**
-   * PID of the process that we started last.
+   * Handle for getting HELLOs from transport
    */
-  struct GNUNET_OS_Process *proc;
+  struct GNUNET_TRANSPORT_GetHelloHandle *ghh;
 
   /**
-   * In which phase are we during the start of
-   * this process?
+   * HELLO message for this peer
    */
-  enum GNUNET_TESTING_StartPhase phase;
+  struct GNUNET_HELLO_Message *hello;
 
   /**
-   * ID of the current task.
+   * Handle to a pipe for reading the hostkey.
    */
-  GNUNET_SCHEDULER_TaskIdentifier task;
+  struct GNUNET_DISK_PipeHandle *pipe_stdout;
 
   /**
-   * Handle to the server.
+   * Currently, a single char * pointing to a service
+   * that has been churned off.
+   *
+   * FIXME: make this a linked list of services that have been churned off!!!
    */
-  struct GNUNET_CORE_Handle *server;
+  char *churned_services;
 
   /**
-   * Handle to the transport service of this peer
+   * ID of the current task.
    */
-  struct GNUNET_TRANSPORT_Handle *th;
+  GNUNET_SCHEDULER_TaskIdentifier task;
 
   /**
-   * HELLO message for this peer
+   * Identity of this peer (once started).
    */
-  struct GNUNET_HELLO_Message *hello;
+  struct GNUNET_PeerIdentity id;
 
   /**
-   * Handle to a pipe for reading the hostkey.
+   * Flag to indicate that we've already been asked
+   * to terminate (but could not because some action
+   * was still pending).
    */
-  struct GNUNET_DISK_PipeHandle *pipe_stdout;
+  int dead;
 
   /**
-   * Output from gnunet-peerinfo is read into this buffer.
+   * GNUNET_YES if the hostkey has been created
+   * for this peer, GNUNET_NO otherwise.
    */
-  char hostkeybuf[105];
+  int have_hostkey;
+
+  /**
+   * In which phase are we during the start of
+   * this process?
+   */
+  enum GNUNET_TESTING_StartPhase phase;
 
   /**
    * Current position in 'hostkeybuf' (for reading from gnunet-peerinfo)
@@ -376,12 +387,10 @@ struct GNUNET_TESTING_Daemon
   int churn;
 
   /**
-   * Currently, a single char * pointing to a service
-   * that has been churned off.
-   *
-   * FIXME: make this a linked list of services that have been churned off!!!
+   * Output from gnunet-peerinfo is read into this buffer.
    */
-  char *churned_services;
+  char hostkeybuf[105];
+
 };
 
 
@@ -405,15 +414,24 @@ struct GNUNET_TESTING_PeerGroup;
  * @param second_daemon handle for the second daemon
  * @param emsg error message (NULL on success)
  */
-typedef void (*GNUNET_TESTING_NotifyConnection)(void *cls,
-                                                const struct GNUNET_PeerIdentity *first,
-                                                const struct GNUNET_PeerIdentity *second,
-                                                uint32_t distance,
-                                                const struct GNUNET_CONFIGURATION_Handle *first_cfg,
-                                                const struct GNUNET_CONFIGURATION_Handle *second_cfg,
-                                                struct GNUNET_TESTING_Daemon *first_daemon,
-                                                struct GNUNET_TESTING_Daemon *second_daemon,
-                                                const char *emsg);
+typedef void (*GNUNET_TESTING_NotifyConnection) (void *cls,
+                                                 const struct
+                                                 GNUNET_PeerIdentity * first,
+                                                 const struct
+                                                 GNUNET_PeerIdentity * second,
+                                                 uint32_t distance,
+                                                 const struct
+                                                 GNUNET_CONFIGURATION_Handle *
+                                                 first_cfg,
+                                                 const struct
+                                                 GNUNET_CONFIGURATION_Handle *
+                                                 second_cfg,
+                                                 struct GNUNET_TESTING_Daemon *
+                                                 first_daemon,
+                                                 struct GNUNET_TESTING_Daemon *
+                                                 second_daemon,
+                                                 const char *emsg);
+
 
 /**
  * Prototype of a callback function indicating that two peers
@@ -425,10 +443,12 @@ typedef void (*GNUNET_TESTING_NotifyConnection)(void *cls,
  * @param distance distance between the connected peers
  * @param emsg error message (NULL on success)
  */
-typedef void (*GNUNET_TESTING_NotifyTopology)(void *cls,
-                                              const struct GNUNET_PeerIdentity *first,
-                                              const struct GNUNET_PeerIdentity *second,
-                                              const char *emsg);
+typedef void (*GNUNET_TESTING_NotifyTopology) (void *cls,
+                                               const struct GNUNET_PeerIdentity
+                                               * first,
+                                               const struct GNUNET_PeerIdentity
+                                               * second, const char *emsg);
+
 
 /**
  * Starts a GNUnet daemon.  GNUnet must be installed on the target
@@ -455,12 +475,9 @@ typedef void (*GNUNET_TESTING_NotifyTopology)(void *cls,
  */
 struct GNUNET_TESTING_Daemon *
 GNUNET_TESTING_daemon_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
-                             struct GNUNET_TIME_Relative timeout,
-                             int pretend,
-                             const char *hostname,
-                             const char *ssh_username,
-                             uint16_t sshport,
-                             const char *hostkey,
+                             struct GNUNET_TIME_Relative timeout, int pretend,
+                             const char *hostname, const char *ssh_username,
+                             uint16_t sshport, const char *hostkey,
                              GNUNET_TESTING_NotifyHostkeyCreated
                              hostkey_callback, void *hostkey_cls,
                              GNUNET_TESTING_NotifyDaemonRunning cb,
@@ -474,18 +491,19 @@ GNUNET_TESTING_daemon_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
  * @param daemon the daemon to finish starting
  */
 void
-GNUNET_TESTING_daemon_continue_startup(struct GNUNET_TESTING_Daemon *daemon);
+GNUNET_TESTING_daemon_continue_startup (struct GNUNET_TESTING_Daemon *daemon);
+
 
 /**
  * Check whether the given daemon is running.
  *
  * @param daemon the daemon to check
- *
  * @return GNUNET_YES if the daemon is up, GNUNET_NO if the
  *         daemon is down, GNUNET_SYSERR on error.
  */
 int
-GNUNET_TESTING_daemon_running (struct GNUNET_TESTING_Daemon *daemon);
+GNUNET_TESTING_test_daemon_running (struct GNUNET_TESTING_Daemon *daemon);
+
 
 /**
  * Restart (stop and start) a GNUnet daemon.
@@ -496,7 +514,9 @@ GNUNET_TESTING_daemon_running (struct GNUNET_TESTING_Daemon *daemon);
  */
 void
 GNUNET_TESTING_daemon_restart (struct GNUNET_TESTING_Daemon *d,
-                               GNUNET_TESTING_NotifyDaemonRunning cb, void *cb_cls);
+                               GNUNET_TESTING_NotifyDaemonRunning cb,
+                               void *cb_cls);
+
 
 /**
  * Start a peer that has previously been stopped using the daemon_stop
@@ -513,6 +533,7 @@ GNUNET_TESTING_daemon_start_stopped (struct GNUNET_TESTING_Daemon *daemon,
                                      GNUNET_TESTING_NotifyDaemonRunning cb,
                                      void *cb_cls);
 
+
 /**
  * Starts a GNUnet daemon's service.
  *
@@ -524,9 +545,11 @@ GNUNET_TESTING_daemon_start_stopped (struct GNUNET_TESTING_Daemon *daemon,
  */
 void
 GNUNET_TESTING_daemon_start_service (struct GNUNET_TESTING_Daemon *d,
-                                     char *service,
+                                     const char *service,
                                      struct GNUNET_TIME_Relative timeout,
-                                     GNUNET_TESTING_NotifyDaemonRunning cb, void *cb_cls);
+                                     GNUNET_TESTING_NotifyDaemonRunning cb,
+                                     void *cb_cls);
+
 
 /**
  * Starts a GNUnet daemon's service which has been previously turned off.
@@ -540,8 +563,11 @@ GNUNET_TESTING_daemon_start_service (struct GNUNET_TESTING_Daemon *d,
 void
 GNUNET_TESTING_daemon_start_stopped_service (struct GNUNET_TESTING_Daemon *d,
                                              char *service,
-                                             struct GNUNET_TIME_Relative timeout,
-                                             GNUNET_TESTING_NotifyDaemonRunning cb, void *cb_cls);
+                                             struct GNUNET_TIME_Relative
+                                             timeout,
+                                             GNUNET_TESTING_NotifyDaemonRunning
+                                             cb, void *cb_cls);
+
 
 /**
  * Get a certain testing daemon handle.
@@ -550,10 +576,11 @@ GNUNET_TESTING_daemon_start_stopped_service (struct GNUNET_TESTING_Daemon *d,
  * @param position the number of the peer to return
  */
 struct GNUNET_TESTING_Daemon *
-GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg, 
-                          unsigned int position);
+GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg,
+                           unsigned int position);
 
-/*
+
+/**
  * Get a daemon by peer identity, so callers can
  * retrieve the daemon without knowing it's offset.
  *
@@ -564,7 +591,8 @@ GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg,
  */
 struct GNUNET_TESTING_Daemon *
 GNUNET_TESTING_daemon_get_by_id (struct GNUNET_TESTING_PeerGroup *pg,
-                                 struct GNUNET_PeerIdentity *peer_id);
+                                 const struct GNUNET_PeerIdentity *peer_id);
+
 
 /**
  * Stops a GNUnet daemon.
@@ -594,10 +622,12 @@ GNUNET_TESTING_daemon_stop (struct GNUNET_TESTING_Daemon *d,
  * @param cb function called once the configuration was changed
  * @param cb_cls closure for cb
  */
-void GNUNET_TESTING_daemon_reconfigure (struct GNUNET_TESTING_Daemon *d,
-                                       struct GNUNET_CONFIGURATION_Handle *cfg,
-                                       GNUNET_TESTING_NotifyCompletion cb,
-                                       void * cb_cls);
+void
+GNUNET_TESTING_daemon_reconfigure (struct GNUNET_TESTING_Daemon *d,
+                                   struct GNUNET_CONFIGURATION_Handle *cfg,
+                                   GNUNET_TESTING_NotifyCompletion cb,
+                                   void *cb_cls);
+
 
 /**
  * Stops a single service of a GNUnet daemon.  Used like daemon_stop,
@@ -613,9 +643,11 @@ void GNUNET_TESTING_daemon_reconfigure (struct GNUNET_TESTING_Daemon *d,
  */
 void
 GNUNET_TESTING_daemon_stop_service (struct GNUNET_TESTING_Daemon *d,
-                                    char *service,
+                                    const char *service,
                                     struct GNUNET_TIME_Relative timeout,
-                                    GNUNET_TESTING_NotifyCompletion cb, void *cb_cls);
+                                    GNUNET_TESTING_NotifyCompletion cb,
+                                    void *cb_cls);
+
 
 /**
  * Read a testing hosts file based on a configuration.
@@ -667,10 +699,11 @@ GNUNET_TESTING_daemons_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
                               hostkey_callback, void *hostkey_cls,
                               GNUNET_TESTING_NotifyDaemonRunning cb,
                               void *cb_cls,
-                              GNUNET_TESTING_NotifyConnection
-                              connect_callback, void *connect_callback_cls,
+                              GNUNET_TESTING_NotifyConnection connect_callback,
+                              void *connect_callback_cls,
                               const struct GNUNET_TESTING_Host *hostnames);
 
+
 /**
  * Function which continues a peer group starting up
  * after successfully generating hostkeys for each peer.
@@ -678,11 +711,20 @@ GNUNET_TESTING_daemons_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
  * @param pg the peer group to continue starting
  */
 void
-GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg);
+GNUNET_TESTING_daemons_continue_startup (struct GNUNET_TESTING_PeerGroup *pg);
+
+
+/**
+ * Handle for an active request to connect two peers.
+ */
+struct GNUNET_TESTING_ConnectContext;
 
 
 /**
- * Establish a connection between two GNUnet daemons.
+ * Establish a connection between two GNUnet daemons.  The daemons
+ * must both be running and not be stopped until either the
+ * 'cb' callback is called OR the connection request has been
+ * explicitly cancelled.
  *
  * @param d1 handle for the first daemon
  * @param d2 handle for the second daemon
@@ -694,8 +736,9 @@ GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg);
  *                   the HELLO has already been exchanged
  * @param cb function to call at the end
  * @param cb_cls closure for cb
+ * @return handle to cancel the request, NULL on error
  */
-void
+struct GNUNET_TESTING_ConnectContext *
 GNUNET_TESTING_daemons_connect (struct GNUNET_TESTING_Daemon *d1,
                                 struct GNUNET_TESTING_Daemon *d2,
                                 struct GNUNET_TIME_Relative timeout,
@@ -705,6 +748,18 @@ GNUNET_TESTING_daemons_connect (struct GNUNET_TESTING_Daemon *d1,
                                 void *cb_cls);
 
 
+
+/**
+ * Cancel an attempt to connect two daemons.
+ *
+ * @param cc connect context
+ */
+void
+GNUNET_TESTING_daemons_connect_cancel (struct GNUNET_TESTING_ConnectContext
+                                       *cc);
+
+
+
 /**
  * Restart all peers in the given group.
  *
@@ -727,10 +782,9 @@ GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
  * @param cb_cls closure for cb
  */
 void
-GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg, 
+GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg,
                              struct GNUNET_TIME_Relative timeout,
-                             GNUNET_TESTING_NotifyCompletion cb,
-                             void *cb_cls);
+                             GNUNET_TESTING_NotifyCompletion cb, void *cb_cls);
 
 
 /**
@@ -743,6 +797,7 @@ GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg,
 unsigned int
 GNUNET_TESTING_daemons_running (struct GNUNET_TESTING_PeerGroup *pg);
 
+
 /**
  * Simulate churn by stopping some peers (and possibly
  * re-starting others if churn is called multiple times).  This
@@ -768,13 +823,13 @@ GNUNET_TESTING_daemons_running (struct GNUNET_TESTING_PeerGroup *pg);
  */
 void
 GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
-                              char *service,
-                              unsigned int voff,
+                              char *service, unsigned int voff,
                               unsigned int von,
                               struct GNUNET_TIME_Relative timeout,
-                              GNUNET_TESTING_NotifyCompletion cb,
-                              void *cb_cls);
-/*
+                              GNUNET_TESTING_NotifyCompletion cb, void *cb_cls);
+
+
+/**
  * Start a given service for each of the peers in the peer group.
  *
  * @param pg handle for the peer group
@@ -792,6 +847,7 @@ GNUNET_TESTING_daemons_start_service (struct GNUNET_TESTING_PeerGroup *pg,
                                       GNUNET_TESTING_NotifyCompletion cb,
                                       void *cb_cls);
 
+
 /**
  * Callback function to process statistic values.
  *
@@ -804,12 +860,14 @@ GNUNET_TESTING_daemons_start_service (struct GNUNET_TESTING_PeerGroup *pg,
  * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
  */
 typedef int (*GNUNET_TESTING_STATISTICS_Iterator) (void *cls,
-                                                   const struct GNUNET_PeerIdentity *peer,
+                                                   const struct
+                                                   GNUNET_PeerIdentity * peer,
                                                    const char *subsystem,
                                                    const char *name,
                                                    uint64_t value,
                                                    int is_persistent);
 
+
 /**
  * Iterate over all (running) peers in the peer group, retrieve
  * all statistics from each.
@@ -822,7 +880,9 @@ typedef int (*GNUNET_TESTING_STATISTICS_Iterator) (void *cls,
 void
 GNUNET_TESTING_get_statistics (struct GNUNET_TESTING_PeerGroup *pg,
                                GNUNET_STATISTICS_Callback cont,
-                               GNUNET_TESTING_STATISTICS_Iterator proc, void *cls);
+                               GNUNET_TESTING_STATISTICS_Iterator proc,
+                               void *cls);
+
 
 /**
  * Topologies supported for testbeds.
@@ -938,8 +998,9 @@ enum GNUNET_TESTING_TopologyOption
  *         known topology, GNUNET_NO if not
  */
 int
-GNUNET_TESTING_topology_get(enum GNUNET_TESTING_Topology *topology, 
-                           const char * topology_string);
+GNUNET_TESTING_topology_get (enum GNUNET_TESTING_Topology *topology,
+                             const char *topology_string);
+
 
 /**
  * Get connect topology option from string input.
@@ -951,8 +1012,9 @@ GNUNET_TESTING_topology_get(enum GNUNET_TESTING_Topology *topology,
  *         known topology, GNUNET_NO if not
  */
 int
-GNUNET_TESTING_topology_option_get(enum GNUNET_TESTING_TopologyOption *topology_option,
-                                  const char * topology_string);
+GNUNET_TESTING_topology_option_get (enum GNUNET_TESTING_TopologyOption
+                                    *topology_option,
+                                    const char *topology_string);
 
 
 /**
@@ -997,6 +1059,7 @@ GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
                                 enum GNUNET_TESTING_Topology restrict_topology,
                                 const char *restrict_transports);
 
+
 /**
  * Iterate over all (running) peers in the peer group, retrieve
  * all connections that each currently has.
@@ -1007,21 +1070,26 @@ GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
  */
 void
 GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg,
-                            GNUNET_TESTING_NotifyTopology cb, void *cls);
+                             GNUNET_TESTING_NotifyTopology cb, void *cls);
+
 
 /**
  * Stop the connection process temporarily.
  *
  * @param pg the peer group to stop connecting
  */
-void GNUNET_TESTING_stop_connections(struct GNUNET_TESTING_PeerGroup *pg);
+void
+GNUNET_TESTING_stop_connections (struct GNUNET_TESTING_PeerGroup *pg);
+
 
 /**
  * Resume the connection process.
  *
  * @param pg the peer group to resume connecting
  */
-void GNUNET_TESTING_resume_connections(struct GNUNET_TESTING_PeerGroup *pg);
+void
+GNUNET_TESTING_resume_connections (struct GNUNET_TESTING_PeerGroup *pg);
+
 
 /**
  * There are many ways to connect peers that are supported by this function.
@@ -1055,6 +1123,7 @@ GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
                                  GNUNET_TESTING_NotifyCompletion
                                  notify_callback, void *notify_cls);
 
+
 /**
  * Start or stop an individual peer from the given group.
  *
@@ -1066,12 +1135,11 @@ GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
  * @param cb_cls closure for cb
  */
 void
-GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg, 
-                            unsigned int offset,
-                            int desired_status,
-                            struct GNUNET_TIME_Relative timeout,
-                            GNUNET_TESTING_NotifyCompletion cb,
-                            void *cb_cls);
+GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
+                             unsigned int offset, int desired_status,
+                             struct GNUNET_TIME_Relative timeout,
+                             GNUNET_TESTING_NotifyCompletion cb, void *cb_cls);
+
 
 /**
  * Start a peer group with a given number of peers.  Notify
@@ -1091,14 +1159,14 @@ GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
  * @return NULL on error, otherwise handle to control peer group
  */
 struct GNUNET_TESTING_PeerGroup *
-GNUNET_TESTING_peergroup_start(
-                               const struct GNUNET_CONFIGURATION_Handle *cfg,
-                               unsigned int total,
-                               struct GNUNET_TIME_Relative timeout,
-                               GNUNET_TESTING_NotifyConnection connect_cb,
-                               GNUNET_TESTING_NotifyCompletion peergroup_cb,
-                               void *peergroup_cls,
-                               const struct GNUNET_TESTING_Host *hostnames);
+GNUNET_TESTING_peergroup_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
+                                unsigned int total,
+                                struct GNUNET_TIME_Relative timeout,
+                                GNUNET_TESTING_NotifyConnection connect_cb,
+                                GNUNET_TESTING_NotifyCompletion peergroup_cb,
+                                void *peergroup_cls,
+                                const struct GNUNET_TESTING_Host *hostnames);
+
 
 /**
  * Print current topology to a graphviz readable file.
@@ -1110,10 +1178,10 @@ GNUNET_TESTING_peergroup_start(
  *
  */
 void
-GNUNET_TESTING_peergroup_topology_to_file(struct GNUNET_TESTING_PeerGroup *pg,
-                                          const char *output_filename,
-                                          GNUNET_TESTING_NotifyCompletion notify_cb,
-                                          void *notify_cb_cls);
+GNUNET_TESTING_peergroup_topology_to_file (struct GNUNET_TESTING_PeerGroup *pg,
+                                           const char *output_filename,
+                                           GNUNET_TESTING_NotifyCompletion
+                                           notify_cb, void *notify_cb_cls);
 
 
 #if 0                           /* keep Emacsens' auto-indent happy */