Fixed one serious bug, working on another. Still very broken.
[oweals/gnunet.git] / src / util / speedup.c
index 0a005c035c6ca9adb7e0f728f37f2ff2a377b93f..e7a06a1022e9d01428d8ee9724ccf6ce4bb7afda 100644 (file)
@@ -1,10 +1,10 @@
 /*
      This file is part of GNUnet.
-     (C) 2001, 2002, 2006, 2009 Christian Grothoff (and other contributing authors)
+     Copyright (C) 2011-2013 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
@@ -14,8 +14,8 @@
 
      You should have received a copy of the GNU General Public License
      along with GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-     Boston, MA 02111-1307, USA.
+     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
 */
 
 /**
@@ -24,8 +24,8 @@
  * @brief functions to speedup peer execution by manipulation system time
  */
 #include "platform.h"
-#include "gnunet_time_lib.h"
-#include "gnunet_scheduler_lib.h"
+#include "gnunet_util_lib.h"
+#include "speedup.h"
 
 #define LOG(kind,...) GNUNET_log_from (kind, "util", __VA_ARGS__)
 
@@ -34,57 +34,78 @@ static struct GNUNET_TIME_Relative interval;
 
 static struct GNUNET_TIME_Relative delta;
 
-static GNUNET_SCHEDULER_TaskIdentifier speedup_task;
+static struct GNUNET_SCHEDULER_Task * speedup_task;
 
 
 static void
-do_speedup (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+do_speedup (void *cls,
+            const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   static long long current_offset;
-  speedup_task = GNUNET_SCHEDULER_NO_TASK;
+
+  speedup_task = NULL;
   if (0 != (GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason))
     return;
-  current_offset += delta.rel_value;
+  current_offset += delta.rel_value_us;
   GNUNET_TIME_set_offset (current_offset);
-  LOG (GNUNET_ERROR_TYPE_DEBUG, 
-       "Speeding up execution time by %llu ms\n", delta.rel_value);
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Speeding up execution time by %s\n",
+       GNUNET_STRINGS_relative_time_to_string (delta, GNUNET_NO));
   speedup_task = GNUNET_SCHEDULER_add_delayed (interval, &do_speedup, NULL);
 }
 
 
+/**
+ * Start task that may speed up our system clock artificially
+ *
+ * @param cfg configuration to use
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR if the speedup was not configured
+ */
 int
 GNUNET_SPEEDUP_start_ (const struct GNUNET_CONFIGURATION_Handle *cfg)
 {
-  if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_time (cfg, "testing", "SPEEDUP_INTERVAL", &interval))
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (cfg, "testing",
+                                           "SPEEDUP_INTERVAL", &interval))
     return GNUNET_SYSERR;
-  if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_time (cfg, "testing", "SPEEDUP_DELTA", &delta))
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (cfg, "testing",
+                                           "SPEEDUP_DELTA", &delta))
     return GNUNET_SYSERR;
 
-  if ((0 == interval.rel_value) || (0 == delta.rel_value))
+  if ((0 == interval.rel_value_us) || (0 == delta.rel_value_us))
   {
     LOG (GNUNET_ERROR_TYPE_DEBUG,
         "Speed up disabled\n");
     return GNUNET_OK;
   }
   LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Speed up execution time %llu ms every %llu ms\n",
-       delta.rel_value, interval.rel_value);
-  speedup_task = GNUNET_SCHEDULER_add_now_with_lifeness (GNUNET_NO, &do_speedup, NULL);
+       "Speed up execution by %s\n",
+       GNUNET_STRINGS_relative_time_to_string (delta, GNUNET_NO));
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Speed up executed every %s\n",
+       GNUNET_STRINGS_relative_time_to_string (interval, GNUNET_NO));
+  speedup_task = GNUNET_SCHEDULER_add_now_with_lifeness (GNUNET_NO,
+                                                         &do_speedup, NULL);
   return GNUNET_OK;
 }
 
 
+/**
+ * Stop tasks that modify clock behavior.
+ */
 void
-GNUNET_SPEEDUP_stop_ ( )
+GNUNET_SPEEDUP_stop_ ()
 {
-  if (GNUNET_SCHEDULER_NO_TASK != speedup_task)
+  if (NULL != speedup_task)
   {
     GNUNET_SCHEDULER_cancel (speedup_task);
-    speedup_task = GNUNET_SCHEDULER_NO_TASK;
+    speedup_task = NULL;
   }
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Stopped execution speed up\n");
+  if ( (0 != interval.rel_value_us) &&
+       (0 != delta.rel_value_us) )
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+        "Stopped execution speed up\n");
 }