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#include "ruby/ruby.h"
#include "ruby/debug.h"
struct tracepoint_track {
size_t newobj_count;
size_t free_count;
size_t gc_start_count;
size_t gc_end_mark_count;
size_t gc_end_sweep_count;
size_t objects_count;
VALUE objects[10];
};
#define objects_max (sizeof(((struct tracepoint_track *)NULL)->objects)/sizeof(VALUE))
static void
tracepoint_track_objspace_events_i(VALUE tpval, void *data)
{
rb_trace_arg_t *tparg = rb_tracearg_from_tracepoint(tpval);
struct tracepoint_track *track = data;
switch (rb_tracearg_event_flag(tparg)) {
case RUBY_INTERNAL_EVENT_NEWOBJ:
{
VALUE obj = rb_tracearg_object(tparg);
if (track->objects_count < objects_max)
track->objects[track->objects_count++] = obj;
track->newobj_count++;
break;
}
case RUBY_INTERNAL_EVENT_FREEOBJ:
{
track->free_count++;
break;
}
case RUBY_INTERNAL_EVENT_GC_START:
{
track->gc_start_count++;
break;
}
case RUBY_INTERNAL_EVENT_GC_END_MARK:
{
track->gc_end_mark_count++;
break;
}
case RUBY_INTERNAL_EVENT_GC_END_SWEEP:
{
track->gc_end_sweep_count++;
break;
}
default:
rb_raise(rb_eRuntimeError, "unknown event");
}
}
static VALUE
tracepoint_track_objspace_events(VALUE self)
{
struct tracepoint_track track = {0, 0, 0, 0, 0,};
VALUE tpval = rb_tracepoint_new(0, RUBY_INTERNAL_EVENT_NEWOBJ | RUBY_INTERNAL_EVENT_FREEOBJ |
RUBY_INTERNAL_EVENT_GC_START | RUBY_INTERNAL_EVENT_GC_END_MARK |
RUBY_INTERNAL_EVENT_GC_END_SWEEP,
tracepoint_track_objspace_events_i, &track);
VALUE result = rb_ary_new();
rb_tracepoint_enable(tpval);
rb_ensure(rb_yield, Qundef, rb_tracepoint_disable, tpval);
rb_ary_push(result, SIZET2NUM(track.newobj_count));
rb_ary_push(result, SIZET2NUM(track.free_count));
rb_ary_push(result, SIZET2NUM(track.gc_start_count));
rb_ary_push(result, SIZET2NUM(track.gc_end_mark_count));
rb_ary_push(result, SIZET2NUM(track.gc_end_sweep_count));
rb_ary_cat(result, track.objects, track.objects_count);
return result;
}
static VALUE
tracepoint_specify_normal_and_internal_events(VALUE self)
{
VALUE tpval = rb_tracepoint_new(0, RUBY_INTERNAL_EVENT_NEWOBJ | RUBY_EVENT_CALL, 0, 0);
rb_tracepoint_enable(tpval);
return Qnil; /* should not be reached */
}
void Init_gc_hook(VALUE);
void
Init_tracepoint(void)
{
VALUE mBug = rb_define_module("Bug");
Init_gc_hook(mBug);
rb_define_module_function(mBug, "tracepoint_track_objspace_events", tracepoint_track_objspace_events, 0);
rb_define_module_function(mBug, "tracepoint_specify_normal_and_internal_events", tracepoint_specify_normal_and_internal_events, 0);
}
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