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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> |
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9 | // Notice the inclusion of ltt-facility-custom-user_generic.h for the |
10 | // slow_printf support |
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11 | |
12 | |
13 | int main(int argc, char **argv) |
14 | { |
15 | printf("Will trace a printf of an incrementing counter.\n"); |
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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"); |
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19 | |
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20 | unsigned int count = 0; |
21 | |
22 | while(1) { |
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23 | trace_user_generic_slow_printf("in: %s at: %s:%d: Counter value is: %u.", |
24 | __FILE__, __func__, __LINE__, count); |
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25 | count++; |
26 | sleep(1); |
27 | } |
28 | |
29 | return 0; |
30 | } |
31 | |