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79 lines
2 KiB
C
79 lines
2 KiB
C
/** Generate random packages on stdout.
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*
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* @file
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014-2015, Institute for Automation of Complex Power Systems, EONERC
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* This file is part of S2SS. All Rights Reserved. Proprietary and confidential.
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* Unauthorized copying of this file, via any medium is strictly prohibited.
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*
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* @addtogroup tools Test and debug tools
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* @{
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**********************************************************************************/
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#include <unistd.h>
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#include "config.h"
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#include "utils.h"
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#include "msg.h"
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#include "timing.h"
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#define CLOCKID CLOCK_REALTIME
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int main(int argc, char *argv[])
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{
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if (argc < 3 || argc > 4) {
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printf("Usage: %s VALUES RATE [LIMIT]\n", argv[0]);
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printf(" VALUES is the number of values a message contains\n");
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printf(" RATE how many messages per second\n");
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printf(" LIMIT only send LIMIT messages\n\n");
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printf("Simulator2Simulator Server %s (built on %s %s)\n",
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BLU(VERSION), MAG(__DATE__), MAG(__TIME__));
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printf(" copyright 2014-2015, Institute for Automation of Complex Power Systems, EONERC\n");
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printf(" Steffen Vogel <StVogel@eonerc.rwth-aachen.de>\n");
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exit(EXIT_FAILURE);
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}
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struct msg m = MSG_INIT(atoi(argv[1]));
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double rate = atof(argv[2]);
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int limit = argc >= 4 ? atoi(argv[3]) : -1;
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/* Setup timer */
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struct itimerspec its = {
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.it_interval = time_from_double(1 / rate),
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.it_value = { 1, 0 }
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};
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int tfd = timerfd_create(CLOCK_REALTIME, 0);
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if (tfd < 0)
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serror("Failed to create timer");
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if (timerfd_settime(tfd, 0, &its, NULL))
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serror("Failed to start timer");
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/* Print header */
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fprintf(stderr, "# %-20s\t%s\t%s\n", "timestamp", "seqno", "data[]");
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/* Block until 1/p->rate seconds elapsed */
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while (limit-- > 0 || argc < 4) {
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m.sequence += timerfd_wait(tfd);
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struct timespec ts;
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clock_gettime(CLOCK_REALTIME, &ts);
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m.ts.sec = ts.tv_sec;
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m.ts.nsec = ts.tv_nsec;
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msg_random(&m);
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msg_fprint(stdout, &m);
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fflush(stdout);
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}
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close(tfd);
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return 0;
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}
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/** @} */
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