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