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VM: using a c++ lambda over a struct

locals-and-roots
Björn Lindqvist 2016-05-05 01:57:52 +02:00
parent 8911ad2a16
commit bc9f62efde
1 changed files with 7 additions and 17 deletions
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24
vm/sampling_profiler.cpp
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@ -39,26 +39,16 @@ void factor_vm::record_sample(bool prolog_p) {
special_objects[OBJ_CURRENT_THREAD]));
}
struct record_callstack_sample_iterator {
std::vector<cell>* sample_callstacks;
bool skip_p;
record_callstack_sample_iterator(std::vector<cell>* sample_callstacks,
bool prolog_p)
: sample_callstacks(sample_callstacks), skip_p(prolog_p) {}
void operator()(cell frame_top, cell size, code_block* owner, cell addr) {
if (skip_p)
skip_p = false;
else
sample_callstacks->push_back(owner->owner);
}
};
void factor_vm::record_callstack_sample(cell* begin, cell* end, bool prolog_p) {
*begin = sample_callstacks.size();
record_callstack_sample_iterator recorder(&sample_callstacks, prolog_p);
bool skip_p = prolog_p;
auto recorder = [&](cell frame_top, cell size, code_block* owner, cell addr) {
if (skip_p)
skip_p = false;
else
sample_callstacks.push_back(owner->owner);
};
iterate_callstack(ctx, recorder);
*end = sample_callstacks.size();