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/*
* Copyright (c) 2018 Balabit
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/time.h>
#include <time.h>
#include "loggen_plugin.h"
#include "loggen_helper.h"
gboolean
thread_check_exit_criteria(ThreadData *thread_context)
{
if (thread_context->option->number_of_messages != 0
&& thread_context->sent_messages >= thread_context->option->number_of_messages)
{
DEBUG("(thread %d) number of sent messages reached the defined limit (%d)\n",thread_context->index,
thread_context->option->number_of_messages);
return TRUE;
}
struct timeval now;
gettimeofday(&now, NULL);
if ( !thread_context->option->permanent &&
time_val_diff_in_sec(&now, &thread_context->start_time) > thread_context->option->interval )
{
DEBUG("(thread %d) defined time (%d sec) ellapsed\n",thread_context->index, thread_context->option->interval);
return TRUE;
}
return FALSE;
}
gboolean
thread_check_time_bucket(ThreadData *thread_context)
{
struct timeval now;
gettimeofday(&now, NULL);
double diff_usec = time_val_diff_in_usec(&now, &thread_context->last_throttle_check);
if (thread_context->buckets == 0 || diff_usec > 1e5)
{
/* check rate every 0.1sec */
long new_buckets = (long)((thread_context->option->rate * diff_usec) / USEC_PER_SEC);
if (new_buckets)
{
thread_context->buckets = (thread_context->option->rate < thread_context->buckets + new_buckets) ?
thread_context->option->rate : thread_context->buckets + new_buckets;
thread_context->last_throttle_check = now;
}
}
if (thread_context->buckets == 0)
{
struct timespec tspec;
long msec = (1000 / thread_context->option->rate) + 1;
tspec.tv_sec = msec / 1000;
tspec.tv_nsec = (msec % 1000) * 1e6;
while (nanosleep(&tspec, &tspec) < 0 && errno == EINTR)
;
return TRUE;
}
return FALSE;
}
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