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acddc0ed3c
Done with a combination of regex'ing and banging my head against a wall. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
144 lines
3.4 KiB
C
144 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* testing log message generator
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* Copyright (C) 2019-2020 David Lamparter for NetDEF, Inc.
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*/
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#include <zebra.h>
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#include "vty.h"
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#include "command.h"
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#include "prefix.h"
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#include "nexthop.h"
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#include "log.h"
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#include "thread.h"
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#include "vrf.h"
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#include "zclient.h"
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#include "frr_pthread.h"
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#include "sharpd/sharp_vty.h"
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/* this is quite hacky, but then again it's a test tool and it does its job. */
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static struct frr_pthread *lpt;
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static unsigned long lp_duration;
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static unsigned lp_frequency;
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static unsigned lp_burst;
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static size_t lp_ctr, lp_expect;
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static struct rusage lp_rusage;
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static struct vty *lp_vty;
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extern struct thread_master *master;
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static void logpump_done(struct thread *thread)
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{
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double x;
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vty_out(lp_vty, "\nlogpump done\n");
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vty_out(lp_vty, "%9zu messages written\n", lp_ctr);
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x = (double)lp_ctr / (double)lp_expect * 100.;
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vty_out(lp_vty, "%9zu messages targeted = %5.1lf%%\n", lp_expect, x);
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x = lp_rusage.ru_utime.tv_sec * 1000000 + lp_rusage.ru_utime.tv_usec;
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x /= (double)lp_ctr;
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vty_out(lp_vty, "%6llu.%06u usr %9.1lfns/msg\n",
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(unsigned long long)lp_rusage.ru_utime.tv_sec,
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(unsigned)lp_rusage.ru_utime.tv_usec, x * 1000.);
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x = lp_rusage.ru_stime.tv_sec * 1000000 + lp_rusage.ru_stime.tv_usec;
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x /= (double)lp_ctr;
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vty_out(lp_vty, "%6llu.%06u sys %9.1lfns/msg\n",
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(unsigned long long)lp_rusage.ru_stime.tv_sec,
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(unsigned)lp_rusage.ru_stime.tv_usec, x * 1000.);
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frr_pthread_stop(lpt, NULL);
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frr_pthread_destroy(lpt);
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lpt = NULL;
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}
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static void *logpump_run(void *arg)
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{
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struct timespec start, next, now;
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unsigned long delta, period;
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period = 1000000000L / lp_frequency;
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zlog_tls_buffer_init();
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clock_gettime(CLOCK_MONOTONIC, &start);
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next = start;
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do {
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for (size_t inburst = 0; inburst < lp_burst; inburst++)
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zlog_debug("log pump: %zu (burst %zu)",
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lp_ctr++, inburst);
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clock_gettime(CLOCK_MONOTONIC, &now);
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delta = (now.tv_sec - start.tv_sec) * 1000000000L
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+ (now.tv_nsec - start.tv_nsec);
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next.tv_nsec += period;
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if (next.tv_nsec > 1000000000L) {
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next.tv_sec++;
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next.tv_nsec -= 1000000000L;
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}
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#ifdef HAVE_CLOCK_NANOSLEEP
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clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &next, NULL);
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#else
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struct timespec slpdur;
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slpdur.tv_sec = next.tv_sec - now.tv_sec;
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slpdur.tv_nsec = next.tv_nsec - now.tv_nsec;
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if (slpdur.tv_nsec < 0) {
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slpdur.tv_sec--;
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slpdur.tv_nsec += 1000000000L;
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}
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nanosleep(&slpdur, NULL);
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#endif
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} while (delta < lp_duration);
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zlog_tls_buffer_fini();
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#ifdef RUSAGE_THREAD
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getrusage(RUSAGE_THREAD, &lp_rusage);
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#else
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getrusage(RUSAGE_SELF, &lp_rusage);
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#endif
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thread_add_timer_msec(master, logpump_done, NULL, 0, NULL);
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return NULL;
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}
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static int logpump_halt(struct frr_pthread *fpt, void **res)
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{
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return 0;
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}
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/* default frr_pthread attributes */
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static const struct frr_pthread_attr attr = {
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.start = logpump_run,
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.stop = logpump_halt,
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};
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void sharp_logpump_run(struct vty *vty, unsigned duration, unsigned frequency,
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unsigned burst)
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{
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if (lpt != NULL) {
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vty_out(vty, "logpump already running\n");
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return;
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}
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vty_out(vty, "starting logpump...\n");
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vty_out(vty, "keep this VTY open and press Enter to see results\n");
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lp_vty = vty;
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lp_duration = duration * 1000000000UL;
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lp_frequency = frequency;
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lp_burst = burst;
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lp_expect = duration * frequency * burst;
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lp_ctr = 0;
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lpt = frr_pthread_new(&attr, "logpump", "logpump");
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frr_pthread_run(lpt, NULL);
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}
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