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/* Copyright (C) 2005-2013 Shugo Maeda <shugo@ruby-lang.org> and Charlie Savage <cfis@savagexi.com>
Please see the LICENSE file for copyright and distribution information */
/* :nodoc: */
#include "ruby_prof.h"
static VALUE cMeasureGcRuns;
#if defined(HAVE_RB_GC_COLLECTIONS)
VALUE rb_gc_collections(void);
#endif
#if defined(HAVE_RB_GC_COUNT)
size_t rb_gc_count(void);
#endif
#if defined(HAVE_RB_GC_HEAP_INFO)
VALUE rb_gc_heap_info(void);
#endif
static double
measure_gc_runs()
{
#if defined(HAVE_RB_GC_COLLECTIONS)
#define MEASURE_GC_RUNS_ENABLED Qtrue
return NUM2INT(rb_gc_collections());
#elif defined(HAVE_RB_GC_COUNT)
#define MEASURE_GC_RUNS_ENABLED Qtrue
return rb_gc_count();
#elif defined(HAVE_RB_GC_HEAP_INFO)
#define MEASURE_GC_RUNS_ENABLED Qtrue
VALUE h = rb_gc_heap_info();
return NUM2UINT(rb_hash_aref(h, rb_str_new2("num_gc_passes")));
#else
#define MEASURE_GC_RUNS_ENABLED Qfalse
return 0;
#endif
}
prof_measurer_t* prof_measurer_gc_runs()
{
prof_measurer_t* measure = ALLOC(prof_measurer_t);
measure->measure = measure_gc_runs;
return measure;
}
/* call-seq:
measure -> int
Returns the number of GC runs.*/
static VALUE
prof_measure_gc_runs(VALUE self)
{
#if defined(HAVE_LONG_LONG)
return ULL2NUM(measure_gc_runs());
#else
return ULONG2NUM(measure_gc_runs());
#endif
}
void rp_init_measure_gc_runs()
{
rb_define_const(mProf, "GC_RUNS", INT2NUM(MEASURE_GC_RUNS));
rb_define_const(mProf, "GC_RUNS_ENABLED", MEASURE_GC_RUNS_ENABLED);
cMeasureGcRuns = rb_define_class_under(mMeasure, "GcRuns", rb_cObject);
rb_define_singleton_method(cMeasureGcRuns, "measure", prof_measure_gc_runs, 0);
}
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