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 static
  25 void inthandler(int sig)
  26 {
  27 }
  28
  29 static
  30 int init_int_handler(void)
  31 {
  32         int result;
  33         struct sigaction act;
  34
  35         memset(&act, 0, sizeof(act));
  36         result = sigemptyset(&act.sa_mask);
  37         if (result == -1) {
  38                 perror("sigemptyset");
  39                 return -1;
  40         }
  41
  42         act.sa_handler = inthandler;
  43         act.sa_flags = SA_RESTART;
  44
  45         /* Only defer ourselves. Also, try to restart interrupted
  46          * syscalls to disturb the traced program as little as possible.
  47          */
  48         result = sigaction(SIGUSR1, &act, NULL);
  49         if (result == -1) {
  50                 perror("sigaction");
  51                 return -1;
  52         }
  53
  54         return 0;
  55 }
  56
  57 int main(int argc, char **argv)
  58 {
  59         int i, netint;
  60         long values[] = { 1, 2, 3 };
  61         char text[10] = "test";
  62         double dbl = 2.0;
  63         float flt = 2222.0;
  64         int delay = 0;
  65
  66         init_int_handler();
  67
  68         if (argc == 2)
  69                 delay = atoi(argv[1]);
  70
  71         sleep(delay);
  72
  73         for (i = 0; i < 1000000; i++) {
  74                 netint = htonl(i);
  75                 tracepoint(tp, tptest, i, netint, values, text,
  76                                 strlen(text), dbl, flt);
  77         }
  78
  79         return 0;
  80 }