Class: PerfTools::CpuProfiler

Inherits:
Object
  • Object
show all
Defined in:
ext/perftools.c

Class Method Summary collapse

Class Method Details

.flushObject


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# File 'ext/perftools.c', line 296

static VALUE
cpuprofiler_flush(VALUE self)
{
  if (!bProfilerRunning)
    return Qfalse;
  if (bProfilerPaused)
    ProfilerResume();
  ProfilerFlush();
  if (bProfilerPaused)
    ProfilerPause();
  return Qtrue;
}

.pauseObject


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# File 'ext/perftools.c', line 268

static VALUE
cpuprofiler_pause(VALUE self)
{
  if (!bProfilerRunning)
    return Qfalse;
  if (bProfilerPaused)
    return Qfalse;

  bProfilerPaused = Qtrue;
  ProfilerPause();

  return Qtrue;
}

.paused?Boolean

Returns:

  • (Boolean)

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# File 'ext/perftools.c', line 256

static VALUE
cpuprofiler_paused_p(VALUE self)
{
  return bProfilerPaused;
}

.resumeObject


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# File 'ext/perftools.c', line 282

static VALUE
cpuprofiler_resume(VALUE self)
{
  if (!bProfilerRunning)
    return Qfalse;
  if (!bProfilerPaused)
    return Qfalse;

  bProfilerPaused = Qfalse;
  ProfilerResume();

  return Qtrue;
}

.running?Boolean

Returns:

  • (Boolean)

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# File 'ext/perftools.c', line 262

static VALUE
cpuprofiler_running_p(VALUE self)
{
  return bProfilerRunning;
}

.start(filename) ⇒ Object


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# File 'ext/perftools.c', line 329

static VALUE
cpuprofiler_start(VALUE self, VALUE filename)
{
  StringValue(filename);

  if (bProfilerRunning)
    rb_raise(eError, "profiler is already running");

  if (getenv("CPUPROFILE_OBJECTS"))
    objprofiler_setup();
  else if (getenv("CPUPROFILE_METHODS"))
    methprofiler_setup();

  if (ProfilerStart(RSTRING_PTR(filename))) {
    bProfilerRunning = Qtrue;
  } else {
    rb_raise(eError, "profiler could not be started");
  }

  if (rb_block_given_p()) {
    rb_yield(Qnil);
    cpuprofiler_stop(self);
  }

  return Qtrue;
}

.stopObject


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# File 'ext/perftools.c', line 309

static VALUE
cpuprofiler_stop(VALUE self)
{
  if (!bProfilerRunning)
    return Qfalse;
  bProfilerRunning = Qfalse;

  objprofiler_teardown();
  methprofiler_teardown();

  if (bProfilerPaused)
    ProfilerResume();
  bProfilerPaused = Qfalse;

  ProfilerStop();
  ProfilerFlush();

  return Qtrue;
}