GNUnet  0.19.2
speedup.c
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1 /*
2  This file is part of GNUnet.
3  Copyright (C) 2011-2013 GNUnet e.V.
4 
5  GNUnet is free software: you can redistribute it and/or modify it
6  under the terms of the GNU Affero General Public License as published
7  by the Free Software Foundation, either version 3 of the License,
8  or (at your option) any later version.
9 
10  GNUnet is distributed in the hope that it will be useful, but
11  WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  Affero General Public License for more details.
14 
15  You should have received a copy of the GNU Affero General Public License
16  along with this program. If not, see <http://www.gnu.org/licenses/>.
17 
18  SPDX-License-Identifier: AGPL3.0-or-later
19  */
20 
27 #include "platform.h"
28 #include "gnunet_util_lib.h"
29 #include "speedup.h"
30 
31 #define LOG(kind, ...) GNUNET_log_from (kind, "util-speedup", __VA_ARGS__)
32 
33 
34 static struct GNUNET_TIME_Relative interval;
35 
36 static struct GNUNET_TIME_Relative delta;
37 
39 
40 
41 static void
42 do_speedup (void *cls)
43 {
44  static long long current_offset;
45 
46  (void) cls;
47  speedup_task = NULL;
48  current_offset += delta.rel_value_us;
49  GNUNET_TIME_set_offset (current_offset);
51  "Speeding up execution time by %s\n",
54  &do_speedup,
55  NULL);
56 }
57 
58 
59 int
61 {
62  GNUNET_assert (NULL == speedup_task);
63  if (GNUNET_OK !=
65  "testing",
66  "SPEEDUP_INTERVAL",
67  &interval))
68  return GNUNET_SYSERR;
69  if (GNUNET_OK !=
71  "testing",
72  "SPEEDUP_DELTA",
73  &delta))
74  return GNUNET_SYSERR;
75 
76  if ((0 == interval.rel_value_us) ||
77  (0 == delta.rel_value_us))
78  {
80  "Speed up disabled\n");
81  return GNUNET_OK;
82  }
84  "Speed up execution by %s\n",
87  "Speed up executed every %s\n",
90  &do_speedup,
91  NULL);
92  return GNUNET_OK;
93 }
94 
95 
99 void
101 {
102  if (NULL != speedup_task)
103  {
105  speedup_task = NULL;
106  }
107  if ((0 != interval.rel_value_us) &&
108  (0 != delta.rel_value_us))
110  "Stopped execution speed up\n");
111 }
112 
113 
114 /* end of speedup.c */
static const struct GNUNET_CONFIGURATION_Handle * cfg
Configuration we are using.
Definition: gnunet-abd.c:36
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_time(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option, struct GNUNET_TIME_Relative *time)
Get a configuration value that should be a relative time.
@ GNUNET_OK
@ GNUNET_NO
@ GNUNET_SYSERR
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
@ GNUNET_ERROR_TYPE_DEBUG
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now_with_lifeness(int lifeness, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible with the (transitive) ignore-shutdown flag either e...
Definition: scheduler.c:1336
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:944
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1241
void GNUNET_TIME_set_offset(long long offset)
Set the timestamp offset for this instance.
Definition: time.c:49
const char * GNUNET_STRINGS_relative_time_to_string(struct GNUNET_TIME_Relative delta, int do_round)
Give relative time in human-readable fancy format.
Definition: strings.c:569
static void do_speedup(void *cls)
Definition: speedup.c:42
int GNUNET_SPEEDUP_start_(const struct GNUNET_CONFIGURATION_Handle *cfg)
Start task that may speed up our system clock artificially.
Definition: speedup.c:60
static struct GNUNET_TIME_Relative interval
Definition: speedup.c:34
static struct GNUNET_SCHEDULER_Task * speedup_task
Definition: speedup.c:38
#define LOG(kind,...)
Definition: speedup.c:31
void GNUNET_SPEEDUP_stop_()
Stop tasks that modify clock behavior.
Definition: speedup.c:100
static struct GNUNET_TIME_Relative delta
Definition: speedup.c:36
Entry in list of pending tasks.
Definition: scheduler.c:136
Time for relative time used by GNUnet, in microseconds.
uint64_t rel_value_us
The actual value.