src/util/test_common_logging_dummy.c

   1 /*
   2      This file is part of GNUnet.
   3      Copyright (C) 2008-2013 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
  21 /**
  22  * @file util/test_common_logging_dummy.c
  23  * @brief dummy labrat for the testcase for the logging module (runtime
  24  * log level adjustment)
  25  * @author LRN
  26  */
  27 #include "platform.h"
  28 #undef GNUNET_EXTRA_LOGGING
  29 #define GNUNET_EXTRA_LOGGING GNUNET_YES
  30
  31 #include "gnunet_util_lib.h"
  32
  33 /**
  34  * Artificial delay attached to each log call that is not skipped out.
  35  * This must be long enough for us to not to mistake skipped log call
  36  * on a slow machine for a non-skipped one.
  37  */
  38 #define OUTPUT_DELAY \
  39   GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MICROSECONDS, 1000)
  40
  41 static void
  42 my_log(void *ctx,
  43        enum GNUNET_ErrorType kind,
  44        const char *component,
  45        const char *date,
  46        const char *msg)
  47 {
  48   (void)ctx;
  49   (void)kind;
  50   (void)component;
  51   (void)date;
  52   if (strncmp("test-common-logging-dummy", component, 25) != 0)
  53     return;
  54   fprintf(stdout, "%s", msg);
  55   fflush(stdout);
  56 }
  57
  58
  59 #if !defined(GNUNET_CULL_LOGGING)
  60 static int
  61 expensive_func()
  62 {
  63   return GNUNET_NETWORK_socket_select(NULL, NULL, NULL, OUTPUT_DELAY);
  64 }
  65 #endif
  66
  67
  68 #define pr(kind, lvl)                                                         \
  69   {                                                                           \
  70     struct GNUNET_TIME_Absolute t1, t2;                                       \
  71     t1 = GNUNET_TIME_absolute_get();                                         \
  72     GNUNET_log(kind, "L%s %d\n", lvl, expensive_func());                    \
  73     t2 = GNUNET_TIME_absolute_get();                                         \
  74     printf("1%s %llu\n",                                                     \
  75            lvl,                                                              \
  76            (unsigned long long)GNUNET_TIME_absolute_get_difference(t1, t2) \
  77            .rel_value_us);                                                 \
  78   }
  79
  80 #define pr2(kind, lvl)                                                        \
  81   {                                                                           \
  82     struct GNUNET_TIME_Absolute t1, t2;                                       \
  83     t1 = GNUNET_TIME_absolute_get();                                         \
  84     GNUNET_log(kind, "L%s %d\n", lvl, expensive_func());                    \
  85     t2 = GNUNET_TIME_absolute_get();                                         \
  86     printf("2%s %llu\n",                                                     \
  87            lvl,                                                              \
  88            (unsigned long long)GNUNET_TIME_absolute_get_difference(t1, t2) \
  89            .rel_value_us);                                                 \
  90   }
  91
  92
  93 int
  94 main(int argc, char *argv[])
  95 {
  96   (void)argc;
  97   (void)argv;
  98   /* We set up logging with NULL level - will be overrided by
  99    * GNUNET_LOG or GNUNET_FORCE_LOG at runtime.
 100    */
 101   GNUNET_log_setup("test-common-logging-dummy", NULL, "/dev/null");
 102   GNUNET_logger_add(&my_log, NULL);
 103   pr(GNUNET_ERROR_TYPE_ERROR, "ERROR");
 104   pr(GNUNET_ERROR_TYPE_WARNING, "WARNING");
 105   pr(GNUNET_ERROR_TYPE_INFO, "INFO");
 106   pr(GNUNET_ERROR_TYPE_DEBUG, "DEBUG");
 107
 108   /* We set up logging with WARNING level - will onle be overrided by
 109    * GNUNET_FORCE_LOG at runtime.
 110    */
 111   GNUNET_log_setup("test-common-logging-dummy", "WARNING", "/dev/null");
 112   pr2(GNUNET_ERROR_TYPE_ERROR, "ERROR");
 113   pr2(GNUNET_ERROR_TYPE_WARNING, "WARNING");
 114   pr2(GNUNET_ERROR_TYPE_INFO, "INFO");
 115   pr2(GNUNET_ERROR_TYPE_DEBUG, "DEBUG");
 116   return 0;
 117 } /* end of main */
 118
 119 /* end of test_common_logging_dummy.c */