tests/hello/hello.c

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include <sys/mman.h>
   4 #include <stdarg.h>
   5 #include <sys/types.h>
   6 #include <sys/stat.h>
   7 #include <fcntl.h>
   8 #include <signal.h>
   9
  10 #include <ust/marker.h>
  11 #include "tp.h"
  12
  13
  14 void inthandler(int sig)
  15 {
  16         printf("in handler\n");
  17         exit(0);
  18 }
  19
  20 int init_int_handler(void)
  21 {
  22         int result;
  23         struct sigaction act;
  24
  25         result = sigemptyset(&act.sa_mask);
  26         if(result == -1) {
  27                 PERROR("sigemptyset");
  28                 return -1;
  29         }
  30
  31         act.sa_handler = inthandler;
  32         act.sa_flags = SA_RESTART;
  33
  34         /* Only defer ourselves. Also, try to restart interrupted
  35          * syscalls to disturb the traced program as little as possible.
  36          */
  37         result = sigaction(SIGINT, &act, NULL);
  38         if(result == -1) {
  39                 PERROR("sigaction");
  40                 return -1;
  41         }
  42
  43         return 0;
  44 }
  45
  46 int main()
  47 {
  48         int i;
  49
  50         init_int_handler();
  51
  52         printf("Hello, World!\n");
  53
  54         sleep(1);
  55         for(i=0; i<50; i++) {
  56                 trace_mark(ust, bar, "str %s", "FOOBAZ");
  57                 trace_mark(ust, bar2, "number1 %d number2 %d", 53, 9800);
  58                 trace_hello_tptest(i);
  59                 usleep(100000);
  60         }
  61
  62         scanf("%*s");
  63
  64         ltt_trace_stop("auto");
  65         ltt_trace_destroy("auto");
  66
  67         DBG("TRACE STOPPED");
  68         scanf("%*s");
  69
  70         return 0;
  71 }
  72
  73 MARKER_LIB;
  74 TRACEPOINT_LIB;