#include <timer_test.h>

Inheritance diagram for TimerTest:

Public Member Functions
	TimerTest ()

void	_testGlibTimeoutSources ()

void	_testGlibmmSignalTimeouts ()

void	_testGlibmmTimeoutSources ()

void	_testTimers ()

void	_testTimersIdleFrequency ()

void	_testTimersBlockIdle ()

void	testGlibTimeoutSources ()

void	testGlibmmSignalTimeouts ()

void	testGlibmmTimeoutSources ()

void	testTimers ()

void	testTimersIdleFrequency ()

void	testTimersBlockIdle ()

Private Member Functions
	CPPUNIT_TEST_SUITE (TimerTest)

	CPPUNIT_TEST (testGlibTimeoutSources)

	CPPUNIT_TEST (testGlibmmSignalTimeouts)

	CPPUNIT_TEST (testGlibmmTimeoutSources)

	CPPUNIT_TEST (testTimers)

	CPPUNIT_TEST (testTimersIdleFrequency)

	CPPUNIT_TEST (testTimersBlockIdle)

	CPPUNIT_TEST_SUITE_END ()

bool	on_idle_handler ()

bool	on_quit_handler ()

void	on_second_timeout ()

void	on_fast_timeout ()

void	on_rapid1_timeout ()

void	on_rapid2_timeout ()

bool	on_second_timeout_glibmm ()

bool	on_fast_timeout_glibmm ()

bool	on_rapid1_timeout_glibmm ()

bool	on_rapid2_timeout_glibmm ()

void	start_timing ()

void	reset_timing ()

void	reset_timing_run_main ()

void	connect_idle_handler ()

void	connect_quit_timeout ()

Static Private Member Functions
static guint64	second_timer_usecs ()

static guint64	fast_timer_usecs ()

static guint64	rapid1_timer_usecs ()

static guint64	rapid2_timer_usecs ()

static guint64	second_timer_ms ()

static guint64	fast_timer_ms ()

static guint64	rapid1_timer_ms ()

static guint64	rapid2_timer_ms ()

static guint64	test_length_ms ()

static gboolean	_second_timeout_handler (void *)

static gboolean	_fast_timeout_handler (void *)

static gboolean	_rapid1_timeout_handler (void *)

static gboolean	_rapid2_timeout_handler (void *)

static void	simulate_load (const std::string &name, guint64 time_usecs)

Private Attributes
std::string	m_current_test_name

bool	m_connect_idle

bool	m_block_idle

Glib::RefPtr< Glib::MainLoop >	m_main

Glib::RefPtr< Glib::MainContext >	m_context

PBD::TimingData	m_idle_timing_data

PBD::TimingData	m_second_timing_data

PBD::TimingData	m_fast_timing_data

PBD::TimingData	m_rapid1_timing_data

PBD::TimingData	m_rapid2_timing_data

Detailed Description

The main point of this test is to the compare the different ways of setting a timeout with glib and glibmm and the PBD::Timers class and then to test them all again with the maximum multimedia timer resolution(1ms) set with timeBeginPeriod on Windows.

The test demonstrates that when using Glibmm TimeoutSources the frequency of the timers is different that using Glib based timeouts. In Ardour that resulted in a noticable increase in CPU Usage, but behaviour may vary.

The other thing being tested is what effect adding two short timeouts(<40ms) to a glib context has on the idle timeout on Windows.

Glib Timeout sources run at a higher priority than the idle handler, so the more work performed in the timeout handlers the less frequent the idle handler will run until doesn't get scheduled at all. The consequence of this is blocking the UI.

Similarily because timeout sources and UI updates/rendering occur in the same context in Gtk the length of expose/draw operations will affect the accuracy of the timeouts.

Definition at line 33 of file timer_test.h.

Constructor & Destructor Documentation

TimerTest::TimerTest ( )

inline

Definition at line 54 of file timer_test.h.

Member Function Documentation

gboolean TimerTest::_fast_timeout_handler ( void * data )

staticprivate

Definition at line 215 of file timer_test.cc.

gboolean TimerTest::_rapid1_timeout_handler ( void * data )

staticprivate

Definition at line 223 of file timer_test.cc.

gboolean TimerTest::_rapid2_timeout_handler ( void * data )

staticprivate

Definition at line 231 of file timer_test.cc.

gboolean TimerTest::_second_timeout_handler ( void * data )

staticprivate

Definition at line 207 of file timer_test.cc.

void TimerTest::_testGlibmmSignalTimeouts ( )

Definition at line 322 of file timer_test.cc.

void TimerTest::_testGlibmmTimeoutSources ( )

Definition at line 354 of file timer_test.cc.

void TimerTest::_testGlibTimeoutSources ( )

Definition at line 258 of file timer_test.cc.

void TimerTest::_testTimers ( )

Definition at line 416 of file timer_test.cc.

void TimerTest::_testTimersBlockIdle ( )

Definition at line 472 of file timer_test.cc.

void TimerTest::_testTimersIdleFrequency ( )

Definition at line 453 of file timer_test.cc.

void TimerTest::connect_idle_handler ( )

private

Definition at line 391 of file timer_test.cc.

void TimerTest::connect_quit_timeout ( )

private

Definition at line 400 of file timer_test.cc.

TimerTest::CPPUNIT_TEST ( testGlibTimeoutSources )

private

TimerTest::CPPUNIT_TEST ( testGlibmmSignalTimeouts )

private

TimerTest::CPPUNIT_TEST ( testGlibmmTimeoutSources )

private

TimerTest::CPPUNIT_TEST ( testTimers )

private

TimerTest::CPPUNIT_TEST ( testTimersIdleFrequency )

private

TimerTest::CPPUNIT_TEST ( testTimersBlockIdle )

private

TimerTest::CPPUNIT_TEST_SUITE ( TimerTest )

private

TimerTest::CPPUNIT_TEST_SUITE_END ( )

private

static guint64 TimerTest::fast_timer_ms ( )

inlinestaticprivate

Definition at line 99 of file timer_test.h.

static guint64 TimerTest::fast_timer_usecs ( )

inlinestaticprivate

Definition at line 87 of file timer_test.h.

void TimerTest::on_fast_timeout ( )

private

Definition at line 117 of file timer_test.cc.

bool TimerTest::on_fast_timeout_glibmm ( )

private

Definition at line 128 of file timer_test.cc.

bool TimerTest::on_idle_handler ( )

private

Definition at line 171 of file timer_test.cc.

bool TimerTest::on_quit_handler ( )

private

Definition at line 181 of file timer_test.cc.

void TimerTest::on_rapid1_timeout ( )

private

Definition at line 135 of file timer_test.cc.

bool TimerTest::on_rapid1_timeout_glibmm ( )

private

Definition at line 146 of file timer_test.cc.

void TimerTest::on_rapid2_timeout ( )

private

Definition at line 153 of file timer_test.cc.

bool TimerTest::on_rapid2_timeout_glibmm ( )

private

Definition at line 164 of file timer_test.cc.

void TimerTest::on_second_timeout ( )

private

Definition at line 89 of file timer_test.cc.

bool TimerTest::on_second_timeout_glibmm ( )

private

Definition at line 110 of file timer_test.cc.

static guint64 TimerTest::rapid1_timer_ms ( )

inlinestaticprivate

Definition at line 102 of file timer_test.h.

static guint64 TimerTest::rapid1_timer_usecs ( )

inlinestaticprivate

Definition at line 90 of file timer_test.h.

static guint64 TimerTest::rapid2_timer_ms ( )

inlinestaticprivate

Definition at line 105 of file timer_test.h.

static guint64 TimerTest::rapid2_timer_usecs ( )

inlinestaticprivate

Definition at line 93 of file timer_test.h.

void TimerTest::reset_timing ( )

private

Definition at line 189 of file timer_test.cc.

void TimerTest::reset_timing_run_main ( )

private

Definition at line 239 of file timer_test.cc.

static guint64 TimerTest::second_timer_ms ( )

inlinestaticprivate

Definition at line 96 of file timer_test.h.

static guint64 TimerTest::second_timer_usecs ( )

inlinestaticprivate

Definition at line 84 of file timer_test.h.

void TimerTest::simulate_load	(	const std::string &	name,
		guint64	time_usecs
	)

staticprivate

Definition at line 64 of file timer_test.cc.

void TimerTest::start_timing ( )

private

Definition at line 198 of file timer_test.cc.

static guint64 TimerTest::test_length_ms ( )

inlinestaticprivate

Definition at line 108 of file timer_test.h.

void TimerTest::testGlibmmSignalTimeouts ( )

Definition at line 315 of file timer_test.cc.

void TimerTest::testGlibmmTimeoutSources ( )

Definition at line 347 of file timer_test.cc.

void TimerTest::testGlibTimeoutSources ( )

Definition at line 251 of file timer_test.cc.

void TimerTest::testTimers ( )

Definition at line 409 of file timer_test.cc.

void TimerTest::testTimersBlockIdle ( )

Definition at line 465 of file timer_test.cc.

void TimerTest::testTimersIdleFrequency ( )

Definition at line 446 of file timer_test.cc.

Member Data Documentation

bool TimerTest::m_block_idle

private

Definition at line 114 of file timer_test.h.

bool TimerTest::m_connect_idle

private

Definition at line 113 of file timer_test.h.

Glib::RefPtr<Glib::MainContext> TimerTest::m_context

private

Definition at line 142 of file timer_test.h.

std::string TimerTest::m_current_test_name

private

Definition at line 111 of file timer_test.h.

PBD::TimingData TimerTest::m_fast_timing_data

private

Definition at line 149 of file timer_test.h.

PBD::TimingData TimerTest::m_idle_timing_data

private

Definition at line 147 of file timer_test.h.

Glib::RefPtr<Glib::MainLoop> TimerTest::m_main

private

Definition at line 141 of file timer_test.h.

PBD::TimingData TimerTest::m_rapid1_timing_data

private

Definition at line 150 of file timer_test.h.

PBD::TimingData TimerTest::m_rapid2_timing_data

private

Definition at line 151 of file timer_test.h.

PBD::TimingData TimerTest::m_second_timing_data

private

Definition at line 148 of file timer_test.h.

The documentation for this class was generated from the following files:

/usr/local/music/src/ardour/4.0/libs/pbd/test/timer_test.h
/usr/local/music/src/ardour/4.0/libs/pbd/test/timer_test.cc

Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation