tests/compile/api0/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 static
  24 void inthandler(int sig __attribute__((unused)))
  25 {
  26         printf("in SIGUSR1 handler\n");
  27         tracepoint(ust_tests_hello, tptest_sighandler);
  28 }
  29
  30 static
  31 int init_int_handler(void)
  32 {
  33         int result;
  34         struct sigaction act;
  35
  36         memset(&act, 0, sizeof(act));
  37         result = sigemptyset(&act.sa_mask);
  38         if (result == -1) {
  39                 perror("sigemptyset");
  40                 return -1;
  41         }
  42
  43         act.sa_handler = inthandler;
  44         act.sa_flags = SA_RESTART;
  45
  46         /* Only defer ourselves. Also, try to restart interrupted
  47          * syscalls to disturb the traced program as little as possible.
  48          */
  49         result = sigaction(SIGUSR1, &act, NULL);
  50         if (result == -1) {
  51                 perror("sigaction");
  52                 return -1;
  53         }
  54
  55         return 0;
  56 }
  57
  58 int main(int argc, char **argv)
  59 {
  60         int i, netint;
  61         long values[] = { 1, 2, 3 };
  62         char text[10] = "test";
  63         double dbl = 2.0;
  64         float flt = 2222.0;
  65         int delay = 0;
  66
  67         init_int_handler();
  68
  69         if (argc == 2)
  70                 delay = atoi(argv[1]);
  71
  72         fprintf(stderr, "Hello, World!\n");
  73
  74         sleep(delay);
  75
  76         fprintf(stderr, "Tracing... ");
  77         for (i = 0; i < 1000000; i++) {
  78                 netint = htonl(i);
  79                 tracepoint(ust_tests_hello, tptest, i, netint, values,
  80                            text, strlen(text), dbl, flt, 15);
  81                 //usleep(100000);
  82         }
  83         fprintf(stderr, " done.\n");
  84         return 0;
  85 }