Class: PerfTools::CpuProfiler

Inherits:

Object

• Object
• PerfTools::CpuProfiler

Defined in:

ext/perftools.c

Class Method Summary

• .running? ⇒ Boolean
• .start(filename) ⇒ Object
• .stop ⇒ Object

Class Method Details

.running? ⇒ Boolean

Returns:

• (Boolean)

# File 'ext/perftools.c', line 228

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

.start(filename) ⇒ Object

# File 'ext/perftools.c', line 249

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;
}

.stop ⇒ Object

# File 'ext/perftools.c', line 234

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

  bProfilerRunning = Qfalse;
  objprofiler_teardown();
  methprofiler_teardown();
  ProfilerStop();
  ProfilerFlush();

  return Qtrue;
}