| 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 | #include <ltt/ltt-facility-custom-user_generic.h> |
| 9 | // Notice the inclusion of ltt-facility-custom-user_generic.h for the |
| 10 | // slow_printf support |
| 11 | |
| 12 | |
| 13 | int main(int argc, char **argv) |
| 14 | { |
| 15 | printf("Will trace a printf of an incrementing counter.\n"); |
| 16 | printf("Abort with CTRL-C.\n"); |
| 17 | printf("No file is created with this example : it logs through a kernel\n"); |
| 18 | printf("system call. See the LTTng lttctl command to start tracing.\n"); |
| 19 | |
| 20 | unsigned int count = 0; |
| 21 | |
| 22 | while(1) { |
| 23 | trace_user_generic_slow_printf("in: %s at: %s:%d: Counter value is: %u.", |
| 24 | __FILE__, __func__, __LINE__, count); |
| 25 | count++; |
| 26 | sleep(1); |
| 27 | } |
| 28 | |
| 29 | return 0; |
| 30 | } |
| 31 | |