ltt-usertrace/sample-block.c

   1
   2 #include <stdio.h>
   3 #include <unistd.h>
   4
   5 #define LTT_TRACE
   6 #define LTT_BLOCKING 1
   7 #include <ltt/ltt-facility-user_generic.h>
   8
   9
  10 int main(int argc, char **argv)
  11 {
  12         printf("Will trace the following string : \"Hello world! Have a nice day.\"\n");
  13         printf("every microsecond.\n");
  14         printf("Abort with CTRL-C.\n");
  15         printf("No file is created with this example : it logs through a kernel\n");
  16         printf("system call. See the LTTng lttctl command to start tracing.\n");
  17
  18         while(1) {
  19                 trace_user_generic_string("Hello world! Have a nice day.");
  20                 usleep(1);
  21         }
  22
  23         return 0;
  24 }
  25