Imported Upstream version 0.9.5a

1 files changed, 203 insertions, 0 deletions

diff --git a/src/fs/gnunet-fs-profiler.c b/src/fs/gnunet-fs-profiler.c
new file mode 100644
index 0000000..7a0b7e8
--- /dev/null
+++ b/src/fs/gnunet-fs-profiler.c
@@ -0,0 +1,203 @@
+/*
+     This file is part of GNUnet.
+     (C) 2012 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 3, or (at your
+     option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     General Public License for more details.
+
+     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.
+*/
+
+/**
+ * @file fs/gnunet-fs-profiler.c
+ * @brief tool to benchmark/profile file-sharing 
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_testbed_service.h"
+
+/**
+ * Final status code.
+ */
+static int ret;
+
+/**
+ * Data file with the hosts for the testbed.
+ */
+static char *host_filename;
+
+/**
+ * Number of peers to run in the experiment.
+ */
+static unsigned int num_peers;
+
+/**
+ * After how long do we abort the test?
+ */
+static struct GNUNET_TIME_Relative timeout;
+
+/**
+ * Handle to the task run during termination.
+ */
+static GNUNET_SCHEDULER_TaskIdentifier terminate_taskid;
+
+
+/**
+ * Function called after we've collected the statistics.
+ *
+ * @param cls NULL
+ * @param op the operation that has been finished
+ * @param emsg error message in case the operation has failed; will be NULL if
+ *          operation has executed successfully.
+ */
+static void
+shutdown_task (void *cls,
+	       struct GNUNET_TESTBED_Operation *op,
+	       const char *emsg)
+{
+  if (NULL != emsg)
+    fprintf (stderr,
+	     "Error collecting statistics: %s\n",
+	     emsg);
+  GNUNET_SCHEDULER_shutdown ();
+}
+
+
+/**
+ * Callback function to process statistic values from all peers.
+ * Prints them out.
+ *
+ * @param cls closure
+ * @param peer the peer the statistic belong to
+ * @param subsystem name of subsystem that created the statistic
+ * @param name the name of the datum
+ * @param value the current value
+ * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
+ * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
+ */
+static int
+process_stats (void *cls,
+	       const struct GNUNET_TESTBED_Peer *peer,
+	       const char *subsystem,
+	       const char *name,
+	       uint64_t value,
+	       int is_persistent)
+{
+  fprintf (stdout,
+	   "%p-%s: %s = %llu\n",
+	   peer,
+	   subsystem,
+	   name,
+	   (unsigned long long) value);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Task run on timeout to terminate.  Triggers printing out
+ * all statistics.
+ *
+ * @param cls NULL
+ * @param tc unused
+ */
+static void
+terminate_task (void *cls,
+		const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  terminate_taskid = GNUNET_SCHEDULER_NO_TASK;
+  GNUNET_TESTBED_get_statistics (0, NULL,
+				 &process_stats,
+				 &shutdown_task,
+				 NULL);
+}
+
+
+/**
+ * Signature of a main function for a testcase.
+ *
+ * @param cls closure
+ * @param num_peers number of peers in 'peers'
+ * @param peers handle to peers run in the testbed
+ */
+static void
+test_master (void *cls, unsigned int num_peers, struct GNUNET_TESTBED_Peer **peers)
+{
+  // const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
+  // FIXME: enable clients to signal 'completion' before timeout;
+  // in that case, run the 'terminate_task' "immediately"
+
+  if (0 != timeout.rel_value)
+    terminate_taskid = GNUNET_SCHEDULER_add_delayed (timeout,
+						     &terminate_task, NULL);
+  else
+    terminate_taskid = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, 
+						     &terminate_task,
+						     NULL);
+}
+
+
+/**
+ * Main function that will be run by the scheduler.
+ *
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be NULL!)
+ * @param cfg configuration
+ */
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  GNUNET_TESTBED_run (host_filename,
+		      cfg,
+		      num_peers,
+		      0, NULL, NULL,
+		      &test_master, (void *) cfg);
+}
+
+
+/**
+ * Program to run a file-sharing testbed.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc, char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'n', "num-peers", "COUNT",
+     gettext_noop ("run the experiment with COUNT peers"),
+     1, &GNUNET_GETOPT_set_uint, &num_peers},
+    {'H', "hosts", "HOSTFILE",
+     gettext_noop ("specifies name of a file with the HOSTS the testbed should use"),
+     1, &GNUNET_GETOPT_set_string, &host_filename},
+    {'t', "timeout", "DELAY",
+     gettext_noop ("automatically terminate experiment after DELAY"),
+     1, &GNUNET_GETOPT_set_relative_time, &timeout},
+    GNUNET_GETOPT_OPTION_END
+  };
+  if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+    return 2;
+
+  ret = (GNUNET_OK ==
+	 GNUNET_PROGRAM_run (argc, argv, "gnunet-fs-profiler",
+			     gettext_noop ("run a testbed to measure file-sharing performance"), options, &run,
+			     NULL)) ? ret : 1;
+  GNUNET_free ((void*) argv);
+  return ret;
+}
+
+/* end of gnunet-fs-profiler.c */