changing time measurement from milliseconds to microseconds
[oweals/gnunet.git] / src / nse / nse_api.c
index a50cd5a4174a917a111759528a41643bcbfbe08d..211071c0dc18a3a0188a9055fe05c3c5e6a8f5f0 100644 (file)
  * @author Nathan Evans
  */
 #include "platform.h"
-#include "gnunet_client_lib.h"
 #include "gnunet_constants.h"
-#include "gnunet_container_lib.h"
 #include "gnunet_arm_service.h"
 #include "gnunet_hello_lib.h"
 #include "gnunet_protocols.h"
-#include "gnunet_server_lib.h"
-#include "gnunet_time_lib.h"
+#include "gnunet_util_lib.h"
 #include "gnunet_nse_service.h"
 #include "nse.h"
 
+#define LOG(kind,...) GNUNET_log_from (kind, "nse-api",__VA_ARGS__)
 
 /**
  * Handle for the service.
@@ -86,8 +84,7 @@ struct GNUNET_NSE_Handle
  * @param tc scheduler context
  */
 static void
-reconnect (void *cls,
-           const struct GNUNET_SCHEDULER_TaskContext *tc);
+reconnect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
 
 
 /**
@@ -97,37 +94,33 @@ reconnect (void *cls,
  * @param cls closure
  * @param msg message received, NULL on timeout or fatal error
  */
-static void 
-message_handler (void *cls,
-                const struct GNUNET_MessageHeader * msg)
+static void
+message_handler (void *cls, const struct GNUNET_MessageHeader *msg)
 {
   struct GNUNET_NSE_Handle *h = cls;
   const struct GNUNET_NSE_ClientMessage *client_msg;
 
   if (msg == NULL)
-    {
-      /* Error, timeout, death */
-      GNUNET_CLIENT_disconnect (h->client, GNUNET_NO);
-      h->client = NULL;
-      h->reconnect_task = GNUNET_SCHEDULER_add_delayed (h->reconnect_delay,
-                                                       &reconnect,
-                                                       h);
-      return;
-    }
-  if ( (ntohs (msg->size) != sizeof(struct GNUNET_NSE_ClientMessage)) || 
-       (ntohs (msg->type) != GNUNET_MESSAGE_TYPE_NSE_ESTIMATE) )
-    {
-      GNUNET_break (0);
-      return;
-    }
-  client_msg = (const struct GNUNET_NSE_ClientMessage *)msg;
-  h->recv_cb (h->recv_cb_cls, 
-             client_msg->size_estimate,
-              client_msg->std_deviation);
-  GNUNET_CLIENT_receive (h->client,
-                         &message_handler,
-                        h, 
-                        GNUNET_TIME_UNIT_FOREVER_REL);
+  {
+    /* Error, timeout, death */
+    GNUNET_CLIENT_disconnect (h->client);
+    h->client = NULL;
+    h->reconnect_task =
+        GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, &reconnect, h);
+    return;
+  }
+  if ((ntohs (msg->size) != sizeof (struct GNUNET_NSE_ClientMessage)) ||
+      (ntohs (msg->type) != GNUNET_MESSAGE_TYPE_NSE_ESTIMATE))
+  {
+    GNUNET_break (0);
+    return;
+  }
+  client_msg = (const struct GNUNET_NSE_ClientMessage *) msg;
+  h->recv_cb (h->recv_cb_cls, GNUNET_TIME_absolute_ntoh (client_msg->timestamp),
+              GNUNET_ntoh_double (client_msg->size_estimate), 
+             GNUNET_ntoh_double (client_msg->std_deviation));
+  GNUNET_CLIENT_receive (h->client, &message_handler, h,
+                         GNUNET_TIME_UNIT_FOREVER_REL);
 }
 
 
@@ -143,34 +136,23 @@ reschedule_connect (struct GNUNET_NSE_Handle *h)
   GNUNET_assert (h->reconnect_task == GNUNET_SCHEDULER_NO_TASK);
 
   if (NULL != h->th)
-    {
-      GNUNET_CLIENT_notify_transmit_ready_cancel (h->th);
-      h->th = NULL;
-    }
+  {
+    GNUNET_CLIENT_notify_transmit_ready_cancel (h->th);
+    h->th = NULL;
+  }
   if (NULL != h->client)
-    {
-      GNUNET_CLIENT_disconnect (h->client, GNUNET_NO);
-      h->client = NULL;
-    }
-
-#if DEBUG_NSE
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Scheduling task to reconnect to nse service in %llu ms.\n",
-              h->reconnect_delay.rel_value);
-#endif
-  h->reconnect_task
-    = GNUNET_SCHEDULER_add_delayed (h->reconnect_delay,
-                                    &reconnect, h);
-  if (h->reconnect_delay.rel_value == 0)
-    {
-      h->reconnect_delay = GNUNET_TIME_UNIT_MILLISECONDS;
-    }
-  else
-    {
-      h->reconnect_delay = GNUNET_TIME_relative_multiply (h->reconnect_delay, 2);
-      h->reconnect_delay = GNUNET_TIME_relative_min (GNUNET_TIME_UNIT_SECONDS,
-                                                     h->reconnect_delay);
-    }
+  {
+    GNUNET_CLIENT_disconnect (h->client);
+    h->client = NULL;
+  }
+
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Scheduling task to reconnect to nse service in %s.\n",
+       GNUNET_STRINGS_relative_time_to_string (h->reconnect_delay,
+                                              GNUNET_YES));
+  h->reconnect_task =
+      GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, &reconnect, h);
+  h->reconnect_delay = GNUNET_TIME_STD_BACKOFF (h->reconnect_delay);
 }
 
 
@@ -189,28 +171,22 @@ send_start (void *cls, size_t size, void *buf)
   struct GNUNET_MessageHeader *msg;
 
   h->th = NULL;
-  if (buf == NULL)
-    {
-      /* Connect error... */
-#if DEBUG_NSE
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  "Shutdown while trying to transmit `%s' request.\n",
-                  "START");
-#endif
-      reschedule_connect(h);
-      return 0;
-    }
-#if DEBUG_NSE
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Transmitting `%s' request.\n", "START");
-#endif
+  if (NULL == buf)
+  {
+    /* Connect error... */
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Error while trying to transmit `%s' request.\n", "START");
+    reschedule_connect (h);
+    return 0;
+  }
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "Transmitting `%s' request.\n", "START");
   GNUNET_assert (size >= sizeof (struct GNUNET_MessageHeader));
 
-  msg = (struct GNUNET_MessageHeader *)buf;
+  msg = (struct GNUNET_MessageHeader *) buf;
   msg->size = htons (sizeof (struct GNUNET_MessageHeader));
   msg->type = htons (GNUNET_MESSAGE_TYPE_NSE_START);
-  GNUNET_CLIENT_receive (h->client,
-                         &message_handler, h, GNUNET_TIME_UNIT_FOREVER_REL);
+  GNUNET_CLIENT_receive (h->client, &message_handler, h,
+                         GNUNET_TIME_UNIT_FOREVER_REL);
   return sizeof (struct GNUNET_MessageHeader);
 }
 
@@ -222,33 +198,23 @@ send_start (void *cls, size_t size, void *buf)
  * @param tc scheduler context
  */
 static void
-reconnect (void *cls,
-           const struct GNUNET_SCHEDULER_TaskContext *tc)
+reconnect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct GNUNET_NSE_Handle *h = cls;
 
   h->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
-  if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
-    {
-      /* shutdown, just give up */
-      return;
-    }
-#if DEBUG_NSE
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Connecting to network size estimation service.\n");
-#endif
-  GNUNET_assert (h->client == NULL);
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Connecting to network size estimation service.\n");
+  GNUNET_assert (NULL == h->client);
   h->client = GNUNET_CLIENT_connect ("nse", h->cfg);
-  GNUNET_assert (h->client != NULL);
-
+  GNUNET_assert (NULL != h->client);
+  GNUNET_assert (NULL == h->th);
   h->th =
-    GNUNET_CLIENT_notify_transmit_ready (h->client,
-                                         sizeof(struct GNUNET_MessageHeader),
-                                         GNUNET_TIME_UNIT_FOREVER_REL,
-                                         GNUNET_NO,
-                                         &send_start,
-                                         h);
-  GNUNET_assert(h->th != NULL);
+      GNUNET_CLIENT_notify_transmit_ready (h->client,
+                                           sizeof (struct GNUNET_MessageHeader),
+                                           GNUNET_TIME_UNIT_FOREVER_REL,
+                                           GNUNET_NO, &send_start, h);
+  GNUNET_assert (NULL != h->th);
 }
 
 
@@ -286,23 +252,23 @@ GNUNET_NSE_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
 void
 GNUNET_NSE_disconnect (struct GNUNET_NSE_Handle *h)
 {
-  GNUNET_assert(h != NULL);
+  GNUNET_assert (NULL != h);
   if (h->reconnect_task != GNUNET_SCHEDULER_NO_TASK)
-    {
-      GNUNET_SCHEDULER_cancel(h->reconnect_task);
-      h->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
-    }
-  if (h->th != NULL)
-    {
-      GNUNET_CLIENT_notify_transmit_ready_cancel(h->th);
-      h->th = NULL;
-    }
-  if (h->client != NULL)
-    {
-      GNUNET_CLIENT_disconnect(h->client, GNUNET_NO);
-      h->client = NULL;
-    }
-  GNUNET_free(h);
+  {
+    GNUNET_SCHEDULER_cancel (h->reconnect_task);
+    h->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
+  }
+  if (NULL != h->th)
+  {
+    GNUNET_CLIENT_notify_transmit_ready_cancel (h->th);
+    h->th = NULL;
+  }
+  if (NULL != h->client)
+  {
+    GNUNET_CLIENT_disconnect (h->client);
+    h->client = NULL;
+  }
+  GNUNET_free (h);
 }
 
 /* end of nse_api.c */