documentation
[oweals/gnunet.git] / src / transport / transport-testing.c
index 24cf8a829e4f74c5c3e2f2eb61d71d3ade04a554..16e7a1e250d28a5de44b935318cf1ecbbcf1cc80 100644 (file)
@@ -32,16 +32,100 @@ struct ConnectingContext
   struct PeerContext * p1;
   struct PeerContext * p2;
   GNUNET_SCHEDULER_TaskIdentifier tct;
+  GNUNET_TRANSPORT_TESTING_connect_cb cb;
+  void * cb_cls;
+
+  struct GNUNET_TRANSPORT_Handle *th_p1;
+  struct GNUNET_TRANSPORT_Handle *th_p2;
+  int c;
 };
 
+static void
+exchange_hello_last (void *cb_cls,
+                     const struct GNUNET_MessageHeader *message);
+static void
+exchange_hello (void *cb_cls,
+                     const struct GNUNET_MessageHeader *message);
 
 static void
-exchange_hello_last (void *cls,
-                     const struct GNUNET_MessageHeader *message)
+notify_connect_internal (void *cls,
+                const struct GNUNET_PeerIdentity *peer,
+                const struct GNUNET_TRANSPORT_ATS_Information *ats,
+                uint32_t ats_count)
 {
   struct ConnectingContext * cc = cls;
+//  /void * cb_cls = cc->cb_cls;
+
+  GNUNET_assert(cc != NULL);
+  cc->c++;
+
+  if (cc->c == 2)
+  {
+     /* clean up */
+    GNUNET_TRANSPORT_get_hello_cancel (cc->th_p2, &exchange_hello_last, cc);
+    GNUNET_TRANSPORT_get_hello_cancel (cc->th_p1, &exchange_hello, cc);
+
+    if (cc->tct != GNUNET_SCHEDULER_NO_TASK)
+      GNUNET_SCHEDULER_cancel(cc->tct);
+
+    cc->tct = GNUNET_SCHEDULER_NO_TASK;
+
+    GNUNET_TRANSPORT_disconnect( cc->th_p1);
+    GNUNET_TRANSPORT_disconnect( cc->th_p2);
+
+    if (cc->cb != NULL)
+      cc->cb (cc->p1, cc->p2, cc->cb_cls);
+
+    GNUNET_free(cc);
+  }
+
+}
+
+static void
+notify_connect (void *cls,
+                const struct GNUNET_PeerIdentity *peer,
+                const struct GNUNET_TRANSPORT_ATS_Information *ats,
+                uint32_t ats_count)
+{
+  struct PeerContext * p = cls;
+  if (p == NULL)
+    return;
+  if (p->nc != NULL)
+    p->nc (p->cb_cls, peer, ats, ats_count);
+}
+
+static void
+notify_disconnect (void *cls, const struct GNUNET_PeerIdentity *peer)
+{
+  struct PeerContext * p = cls;
+  if (p == NULL)
+    return;
+  if (p->nd != NULL)
+    p->nd (p->cb_cls, peer);
+}
+
+static void
+notify_receive (void *cls,
+                const struct GNUNET_PeerIdentity *peer,
+                const struct GNUNET_MessageHeader *message,
+                const struct GNUNET_TRANSPORT_ATS_Information *ats,
+                uint32_t ats_count)
+{
+  struct PeerContext * p = cls;
+  if (p == NULL)
+    return;
+  if (p->rec != NULL)
+    p->rec (p->cb_cls, peer, message, ats, ats_count);
+}
+
+
+static void
+exchange_hello_last (void *cb_cls,
+                     const struct GNUNET_MessageHeader *message)
+{
+  struct ConnectingContext * cc = cb_cls;
   struct PeerContext *me = cc->p2;
-  struct PeerContext *p1 = cc->p1;
+  //struct PeerContext *p1 = cc->p1;
 
   GNUNET_assert (message != NULL);
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
@@ -51,17 +135,17 @@ exchange_hello_last (void *cls,
   GNUNET_assert (GNUNET_OK ==
                  GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *)
                                       message, &me->id));
-  GNUNET_TRANSPORT_offer_hello (p1->th, message, NULL, NULL);
+  GNUNET_TRANSPORT_offer_hello (cc->th_p1, message, NULL, NULL);
 }
 
 
 static void
-exchange_hello (void *cls,
+exchange_hello (void *cb_cls,
                 const struct GNUNET_MessageHeader *message)
 {
-  struct ConnectingContext * cc = cls;
+  struct ConnectingContext * cc = cb_cls;
   struct PeerContext *me = cc->p1;
-  struct PeerContext *p2 = cc->p2;
+  //struct PeerContext *p2 = cc->p2;
 
   GNUNET_assert (message != NULL);
   GNUNET_assert (GNUNET_OK ==
@@ -71,7 +155,7 @@ exchange_hello (void *cls,
               "Exchanging HELLO of size %d from peer %s!\n",
               (int) GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message),
               GNUNET_i2s (&me->id));
-  GNUNET_TRANSPORT_offer_hello (p2->th, message, NULL, NULL);
+  GNUNET_TRANSPORT_offer_hello (cc->th_p2, message, NULL, NULL);
 }
 
 static void
@@ -82,20 +166,38 @@ try_connect (void *cls,
   struct PeerContext *p1 = cc->p1;
   struct PeerContext *p2 = cc->p2;
 
+  cc->tct = GNUNET_SCHEDULER_NO_TASK;
+  if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
+    return;
+
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Asking peers to connect...\n");
   /* FIXME: 'pX.id' may still be all-zeros here... */
-  GNUNET_TRANSPORT_try_connect (p2->th,
-                                &p1->id);
-  GNUNET_TRANSPORT_try_connect (p1->th,
+  GNUNET_TRANSPORT_try_connect (cc->th_p1,
                                 &p2->id);
+  GNUNET_TRANSPORT_try_connect (cc->th_p2,
+                                &p1->id);
+
   cc->tct = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
                                       &try_connect,
                                       cc);
 }
 
+
+/**
+ * Start a peer with the given configuration
+ * @param rec receive callback
+ * @param nc connect callback
+ * @param nd disconnect callback
+ * @param cb_cls closure for callback
+ * @return the peer context
+ */
 struct PeerContext *
-GNUNET_TRANSPORT_TESTING_start_peer (const char * cfgname)
+GNUNET_TRANSPORT_TESTING_start_peer (const char * cfgname,
+    GNUNET_TRANSPORT_ReceiveCallback rec,
+    GNUNET_TRANSPORT_NotifyConnect nc,
+    GNUNET_TRANSPORT_NotifyDisconnect nd,
+    void * cb_cls)
 {
   struct PeerContext * p = GNUNET_malloc (sizeof (struct PeerContext));
 
@@ -108,13 +210,37 @@ GNUNET_TRANSPORT_TESTING_start_peer (const char * cfgname)
     GNUNET_DISK_directory_remove (p->servicehome);
   p->arm_proc = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
                                         "gnunet-service-arm",
-                                        "-c", cfgname, NULL);
+                                        "-c", cfgname,
+#if VERBOSE_PEERS
+                                        "-L", "DEBUG",
+#else
+                                        "-L", "ERROR",
+#endif
+                                        NULL);
+  p->nc = nc;
+  p->nd = nd;
+  p->rec = rec;
+  p->cb_cls = cb_cls;
+
+  p->th = GNUNET_TRANSPORT_connect(p->cfg, NULL,
+                            p,
+                            &notify_receive,
+                            &notify_connect,
+                            &notify_disconnect);
+  GNUNET_assert (p->th != NULL);
   return p;
 }
 
+/**
+ * shutdown the given peer
+ * @param p the peer
+ */
 void
 GNUNET_TRANSPORT_TESTING_stop_peer (struct PeerContext * p)
 {
+  if (p->th != NULL)
+    GNUNET_TRANSPORT_disconnect(p->th);
+
   if (NULL != p->arm_proc)
     {
       if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
@@ -129,26 +255,52 @@ GNUNET_TRANSPORT_TESTING_stop_peer (struct PeerContext * p)
     GNUNET_DISK_directory_remove (p->servicehome);
     GNUNET_free(p->servicehome);
     }
+  GNUNET_free (p);
 }
 
+/**
+ * Connect the two given peers and call the callback when both peers report the
+ * inbound connect. Remarks: start_peer's notify_connect callback can be called
+ * before.
+ * @param p1 peer 1
+ * @param p2 peer 2
+ * @param cb the callback to call
+ * @param cb_cls callback cls
+ */
 void
 GNUNET_TRANSPORT_TESTING_connect_peers (struct PeerContext * p1,
                                         struct PeerContext * p2,
-                                        GNUNET_TRANSPORT_TESTING_connect_cb cb,
-                                        void * cls)
+                                        GNUNET_TRANSPORT_TESTING_connect_cb cb,
+                                        void * cb_cls)
 {
   struct ConnectingContext * cc = GNUNET_malloc (sizeof (struct ConnectingContext));
 
   GNUNET_assert (p1 != NULL);
-  GNUNET_assert (p1->th != NULL);
-
   GNUNET_assert (p2 != NULL);
-  GNUNET_assert (p2->th != NULL);
 
   cc->p1 = p1;
   cc->p2 = p2;
-  GNUNET_TRANSPORT_get_hello (p1->th, &exchange_hello, cc);
-  GNUNET_TRANSPORT_get_hello (p2->th, &exchange_hello_last, cc);
+
+  cc->cb = cb;
+  cc->cb_cls = cb_cls;
+
+  cc->th_p1 = GNUNET_TRANSPORT_connect(cc->p1->cfg, NULL,
+                            cc,
+                            NULL,
+                            &notify_connect_internal,
+                            NULL);
+
+  cc->th_p2 = GNUNET_TRANSPORT_connect(cc->p2->cfg, NULL,
+                            cc,
+                            NULL,
+                            &notify_connect_internal,
+                            NULL);
+
+  GNUNET_assert (cc->th_p1 != NULL);
+  GNUNET_assert (cc->th_p2 != NULL);
+
+  GNUNET_TRANSPORT_get_hello (cc->th_p1, &exchange_hello, cc);
+  GNUNET_TRANSPORT_get_hello (cc->th_p2, &exchange_hello_last, cc);
 
   cc->tct = GNUNET_SCHEDULER_add_now (&try_connect, cc);
 }