callgrind/tests/clreq.c

   1
   2 // Similar to Cachegrind, check if instrumentation works in the presence
   3 // of a client request. Uses a Callgrind request to check this.
   4
   5 #include "../callgrind.h"
   6
   7 int some_work(int sum)
   8 {
   9    int i;
  10
  11    for(i=0;i<10;i++) sum += i; /* some dummy work */
  12
  13    return sum;
  14 }
  15
  16 int some_callgrind_clreqs()
  17 {
  18    int sum = some_work(0);
  19
  20    CALLGRIND_ZERO_STATS;
  21
  22    sum += some_work(sum);
  23
  24    CALLGRIND_DUMP_STATS;
  25
  26    sum += some_work(sum);
  27
  28    CALLGRIND_DUMP_STATS_AT("Please dump here");
  29
  30    return some_work(sum);
  31 }
  32
  33 int more_callgrind_clreqs()
  34 {
  35    int sum = some_callgrind_clreqs();
  36
  37    CALLGRIND_TOGGLE_COLLECT;
  38
  39    sum += some_callgrind_clreqs();
  40
  41    CALLGRIND_TOGGLE_COLLECT;
  42
  43    return sum;
  44 }
  45
  46
  47 int main(void)
  48 {
  49    more_callgrind_clreqs();
  50
  51    CALLGRIND_STOP_INSTRUMENTATION;
  52
  53    more_callgrind_clreqs();
  54
  55    CALLGRIND_START_INSTRUMENTATION;
  56
  57    more_callgrind_clreqs();
  58
  59    CALLGRIND_STOP_INSTRUMENTATION;
  60
  61    more_callgrind_clreqs();
  62
  63    CALLGRIND_START_INSTRUMENTATION;
  64
  65    return RUNNING_ON_VALGRIND;
  66 }
  67