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/*
This file is part of GNUnet.
(C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 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 testing/gnunet-testing-run-service.c
* @brief tool to start a service for testing
* @author Florian Dold
*
* Start a peer, running only the service specified on the command line.
* Outputs the path to the temporary configuration file to stdout.
*
* The peer will run until this program is killed,
* or stdin is closed. When reading the character 'r' from stdin,
* the running service is restarted with the same configuration.
*
* This executable is intended to be used by gnunet-java, in order to reliably
* start and stop services for test cases.
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_testing_lib.h"
#define LOG(kind,...) \
GNUNET_log_from (kind, "gnunet-testing", __VA_ARGS__)
/**
* File handle to STDIN, for reading restart/quit commands.
*/
static struct GNUNET_DISK_FileHandle *fh;
/**
* FIXME
*/
static char *tmpfilename;
/**
* FIXME
*/
static GNUNET_SCHEDULER_TaskIdentifier tid;
/**
* FIXME
*/
static struct GNUNET_TESTING_Peer *my_peer;
/**
* Cleanup called by signal handlers and when stdin is closed.
* Removes the temporary file.
*
* @param cls unused
* @param tc scheduler context
*/
static void
cleanup (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
if (NULL != tmpfilename)
{
if (0 != UNLINK (tmpfilename))
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", tmpfilename);
}
if (GNUNET_SCHEDULER_NO_TASK != tid)
{
GNUNET_SCHEDULER_cancel (tid);
tid = GNUNET_SCHEDULER_NO_TASK;
}
if (NULL != fh)
{
GNUNET_DISK_file_close (fh);
fh = NULL;
}
}
/**
* Called whenever we can read stdin non-blocking
*
* @param cls unused
* @param tc scheduler context
*/
static void
stdin_cb (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
int c;
tid = GNUNET_SCHEDULER_NO_TASK;
if (0 != (GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason))
return;
GNUNET_assert (0 != (GNUNET_SCHEDULER_REASON_READ_READY & tc->reason));
c = getchar ();
switch (c)
{
case EOF:
case 'q':
GNUNET_SCHEDULER_shutdown ();
return;
case 'r':
GNUNET_TESTING_peer_stop (my_peer);
GNUNET_TESTING_peer_start (my_peer);
printf ("restarted\n");
fflush (stdout);
break;
case '\n':
case '\r':
/* ignore whitespace */
break;
default:
fprintf (stderr, _("Unknown command, use 'q' to quit or 'r' to restart peer\n"));
break;
}
tid = GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, fh,
&stdin_cb, NULL);
}
/**
* Main function called by the testing library.
* Executed inside a running scheduler.
*
* @param cls unused
* @param cfg configuration of the peer that was started
* @param peer handle to the peer
*/
static void
testing_main (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg,
struct GNUNET_TESTING_Peer *peer)
{
my_peer = peer;
if (NULL == (tmpfilename = GNUNET_DISK_mktemp ("gnunet-testing")))
{
GNUNET_break (0);
GNUNET_SCHEDULER_shutdown ();
return;
}
if (GNUNET_SYSERR ==
GNUNET_CONFIGURATION_write ((struct GNUNET_CONFIGURATION_Handle *) cfg,
tmpfilename))
{
GNUNET_break (0);
return;
}
printf("ok\n%s\n", tmpfilename);
fflush(stdout);
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &cleanup, NULL);
fh = GNUNET_DISK_get_handle_from_native (stdin);
tid = GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, fh,
&stdin_cb, NULL);
}
/**
* The main function.
*
* @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 char *cfg_name;
static char *srv_name;
static const struct GNUNET_GETOPT_CommandLineOption options[] = {
{'c', "config", "FILENAME",
gettext_noop ("name of the template configuration file to use (optional)"), 1,
&GNUNET_GETOPT_set_string, &cfg_name},
{'s', "service", "SERVICE",
gettext_noop ("name of the service to run"), 1,
&GNUNET_GETOPT_set_string, &srv_name},
GNUNET_GETOPT_OPTION_HELP ("tool to start a service for testing"),
GNUNET_GETOPT_OPTION_END
};
int ret;
if (GNUNET_SYSERR ==
GNUNET_GETOPT_run("gnunet-testing-run-service", options, argc, argv))
return 1;
ret = GNUNET_TESTING_service_run ("gnunet_service_test", srv_name,
cfg_name, &testing_main, NULL);
if (0 != ret)
{
printf ("error\n");
}
else
{
printf ("bye\n");
}
return ret;
}
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