tests/compile/hello.cxx/hello.cpp

   1 /*
   2  * SPDX-License-Identifier: LGPL-2.1-only
   3  *
   4  * Copyright (C) 2009 Pierre-Marc Fournier
   5  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   6  */
   7
   8 #include <stdio.h>
   9 #include <unistd.h>
  10 #include <sys/mman.h>
  11 #include <stdarg.h>
  12 #include <sys/types.h>
  13 #include <sys/stat.h>
  14 #include <fcntl.h>
  15 #include <signal.h>
  16 #include <string.h>
  17 #include <arpa/inet.h>
  18 #include <stdlib.h>
  19
  20 #define TRACEPOINT_DEFINE
  21 #include "ust_tests_hello.h"
  22
  23 void inthandler(int sig)
  24 {
  25         printf("in SIGUSR1 handler\n");
  26         tracepoint(ust_tests_hello, tptest_sighandler);
  27 }
  28
  29 int init_int_handler(void)
  30 {
  31         int result;
  32         struct sigaction act;
  33
  34         memset(&act, 0, sizeof(act));
  35         result = sigemptyset(&act.sa_mask);
  36         if (result == -1) {
  37                 perror("sigemptyset");
  38                 return -1;
  39         }
  40
  41         act.sa_handler = inthandler;
  42         act.sa_flags = SA_RESTART;
  43
  44         /* Only defer ourselves. Also, try to restart interrupted
  45          * syscalls to disturb the traced program as little as possible.
  46          */
  47         result = sigaction(SIGUSR1, &act, NULL);
  48         if (result == -1) {
  49                 perror("sigaction");
  50                 return -1;
  51         }
  52
  53         return 0;
  54 }
  55
  56 int main(int argc, char **argv)
  57 {
  58         int i, netint;
  59         long values[] = { 1, 2, 3 };
  60         char text[10] = "test";
  61         double dbl = 2.0;
  62         float flt = 2222.0;
  63         int delay = 0;
  64
  65         init_int_handler();
  66
  67         if (argc == 2)
  68                 delay = atoi(argv[1]);
  69
  70         fprintf(stderr, "Hello, World!\n");
  71
  72         sleep(delay);
  73
  74         fprintf(stderr, "Tracing... ");
  75         for (i = 0; i < 1000000; i++) {
  76                 netint = htonl(i);
  77                 tracepoint(ust_tests_hello, tptest, i, netint, values,
  78                            text, strlen(text), dbl, flt, 15);
  79                 //usleep(100000);
  80         }
  81         fprintf(stderr, " done.\n");
  82         return 0;
  83 }