tests/regression/ust/high-throughput/main.c

   1 /*
   2  * Copyright (C) 2009 Pierre-Marc Fournier
   3  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  *
   5  * SPDX-License-Identifier: LGPL-2.1-only
   6  *
   7  */
   8
   9 #include <stdio.h>
  10 #include <unistd.h>
  11 #include <sys/mman.h>
  12 #include <stdarg.h>
  13 #include <sys/types.h>
  14 #include <sys/stat.h>
  15 #include <fcntl.h>
  16 #include <signal.h>
  17 #include <string.h>
  18 #include <arpa/inet.h>
  19 #include <stdlib.h>
  20
  21 #define TRACEPOINT_DEFINE
  22 #include "tp.h"
  23
  24 void inthandler(int sig)
  25 {
  26 }
  27
  28 int init_int_handler(void)
  29 {
  30         int result;
  31         struct sigaction act;
  32
  33         memset(&act, 0, sizeof(act));
  34         result = sigemptyset(&act.sa_mask);
  35         if (result == -1) {
  36                 perror("sigemptyset");
  37                 return -1;
  38         }
  39
  40         act.sa_handler = inthandler;
  41         act.sa_flags = SA_RESTART;
  42
  43         /* Only defer ourselves. Also, try to restart interrupted
  44          * syscalls to disturb the traced program as little as possible.
  45          */
  46         result = sigaction(SIGUSR1, &act, NULL);
  47         if (result == -1) {
  48                 perror("sigaction");
  49                 return -1;
  50         }
  51
  52         return 0;
  53 }
  54
  55 int main(int argc, char **argv)
  56 {
  57         int i, netint;
  58         long values[] = { 1, 2, 3 };
  59         char text[10] = "test";
  60         double dbl = 2.0;
  61         float flt = 2222.0;
  62         int delay = 0;
  63
  64         init_int_handler();
  65
  66         if (argc == 2)
  67                 delay = atoi(argv[1]);
  68
  69         sleep(delay);
  70
  71         for (i = 0; i < 1000000; i++) {
  72                 netint = htonl(i);
  73                 tracepoint(tp, tptest, i, netint, values, text,
  74                                 strlen(text), dbl, flt);
  75         }
  76
  77         return 0;
  78 }