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/*
This file is part of GNUnet
Copyright (C) 2008--2013 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
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
Affero General Public License for more details.
*/
/**
* @file testbed/gnunet-service-test-barriers.c
* @brief Daemon acting as a service for testing testbed barriers. It is
* started as a peer service and waits for a barrier to be crossed.
* @author Sree Harsha Totakura <sreeharsha@totakura.in>
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_testbed_service.h"
#include "test_testbed_api_barriers.h"
/**
* logging short hand
*/
#define LOG(type,...) \
GNUNET_log (type, __VA_ARGS__);
/**
* Our barrier wait handle
*/
static struct GNUNET_TESTBED_BarrierWaitHandle *wh;
static struct GNUNET_SCHEDULER_Task *tt;
/**
* Dummy task callback to keep us running forever
*
* @param cls NULL
*/
static void
do_shutdown (void *cls)
{
if (NULL != wh)
{
GNUNET_TESTBED_barrier_wait_cancel (wh);
wh = NULL;
}
if (NULL != tt)
{
GNUNET_SCHEDULER_cancel (tt);
tt = NULL;
}
}
/**
* Functions of this type are to be given as acallback argumetn to
* GNUNET_TESTBED_barrier_wait(). The callback will be called when the barrier
* corresponding given in GNUNET_TESTBED_barrier_wait() is crossed or cancelled.
*
* @param cls NULL
* @param name the barrier name
* @param status #GNUNET_SYSERR in case of error while waiting for the barrier;
* #GNUNET_OK if the barrier is crossed
*/
static void
barrier_wait_cb (void *cls,
const char *name,
int status)
{
GNUNET_break (NULL == cls);
wh = NULL;
GNUNET_break (GNUNET_OK == status);
}
/**
* Task to wait for the barrier
*
* @param cls NULL
* @return
*/
static void
do_wait (void *cls)
{
tt = NULL;
wh = GNUNET_TESTBED_barrier_wait (TEST_BARRIER_NAME,
&barrier_wait_cb,
NULL);
GNUNET_break (NULL != wh);
}
/**
* Main run function.
*
* @param cls NULL
* @param args arguments passed to GNUNET_PROGRAM_run
* @param cfgfile the path to configuration file
* @param config the configuration file handle
*/
static void
run (void *cls,
char *const *args,
const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *config)
{
unsigned int rsec;
rsec = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE,
10);
tt = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
rsec),
&do_wait,
NULL);
GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL);
}
/**
* Main
*/
int
main (int argc, char **argv)
{
struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_OPTION_END
};
int ret;
ret =
GNUNET_PROGRAM_run (argc, argv,
"test-barriers",
"nohelp",
options,
&run,
NULL);
return ret;
}
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