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 "marker.h"
  11 #include "usterr.h"
  12 #include "tracer.h"
  13 #include "marker-control.h"
  14 #include "relay.h"
  15 #include "tp.h"
  16
  17
  18 void inthandler(int sig)
  19 {
  20         printf("in handler\n");
  21         exit(0);
  22 }
  23
  24 int init_int_handler(void)
  25 {
  26         int result;
  27         struct sigaction act;
  28
  29         result = sigemptyset(&act.sa_mask);
  30         if(result == -1) {
  31                 PERROR("sigemptyset");
  32                 return -1;
  33         }
  34
  35         act.sa_handler = inthandler;
  36         act.sa_flags = SA_RESTART;
  37
  38         /* Only defer ourselves. Also, try to restart interrupted
  39          * syscalls to disturb the traced program as little as possible.
  40          */
  41         result = sigaction(SIGINT, &act, NULL);
  42         if(result == -1) {
  43                 PERROR("sigaction");
  44                 return -1;
  45         }
  46
  47         return 0;
  48 }
  49
  50 int main()
  51 {
  52         int result;
  53         int i;
  54
  55         init_int_handler();
  56
  57         printf("Hello, World!\n");
  58
  59         sleep(1);
  60         for(i=0; i<50; i++) {
  61                 trace_mark(ust, bar, "str %s", "FOOBAZ");
  62                 trace_mark(ust, bar2, "number1 %d number2 %d", 53, 9800);
  63                 trace_hello_tptest(i);
  64                 usleep(100000);
  65         }
  66
  67         scanf("%*s");
  68
  69         ltt_trace_stop("auto");
  70         ltt_trace_destroy("auto");
  71
  72         DBG("TRACE STOPPED");
  73         scanf("%*s");
  74
  75         return 0;
  76 }
  77
  78 MARKER_LIB;
  79 TRACEPOINT_LIB;