Add tests that show the timing differences between the Glib/mm based timeouts
This shows that PBD::Timer is pretty much identical in terms of timing and CPU usage as Glib TimeoutSources. They also show the differences on Windows when setting the minimum Multimedia Timer resolution using timeBeginPeriod
This commit is contained in:
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#include "timer_test.h"
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#include <iostream>
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#include <sstream>
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#include <algorithm>
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#include "pbd/timer.h"
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#ifdef PLATFORM_WINDOWS
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#include <windows.h>
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#endif
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CPPUNIT_TEST_SUITE_REGISTRATION (TimerTest);
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using namespace std;
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#ifdef PLATFORM_WINDOWS
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UINT&
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min_timer_resolution ()
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{
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static UINT min_res_ms = 0;
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return min_res_ms;
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}
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bool
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set_min_timer_resolution ()
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{
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TIMECAPS caps;
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if (timeGetDevCaps(&caps, sizeof(TIMECAPS)) != TIMERR_NOERROR) {
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cerr << "Could not get timer device capabilities..." << endl;
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} else {
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if (timeBeginPeriod(caps.wPeriodMin) != TIMERR_NOERROR) {
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cerr << "Could not set minimum timer resolution to: " << caps.wPeriodMin << "ms" << endl;
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return false;
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}
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else {
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cerr << "Multimedia timer resolution set to: " << caps.wPeriodMin << "ms" << endl;
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min_timer_resolution() = caps.wPeriodMin;
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return true;
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}
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}
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return false;
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}
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bool
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reset_timer_resolution ()
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{
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if (min_timer_resolution()) {
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if (timeEndPeriod(min_timer_resolution()) != TIMERR_NOERROR) {
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cerr << "Could not reset timer resolution" << endl;
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return false;
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} else {
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cerr << "Multimedia timer resolution reset" << endl;
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return true;
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}
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}
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return true;
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}
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#endif
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void
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TimerTest::simulate_load (const string& name, guint64 load_usecs)
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{
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PBD::Timing timing;
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std::ostringstream oss;
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oss << name << " Load.";
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guint64 i = 0;
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do {
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timing.update ();
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// totally arbitrary
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if (i % 10000 == 0) {
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oss << ".";
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}
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++i;
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} while (timing.elapsed () < load_usecs);
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oss << "Expected = " << load_usecs;
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oss << ", Elapsed = " << timing.elapsed ();
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oss << endl;
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//cerr << oss.str();
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}
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void
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TimerTest::on_second_timeout ()
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{
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cerr << endl;
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cerr << "Timing Summary: " << m_current_test_name << endl;
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if (m_idle_timing_data.size()) {
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cerr << "Idle Timing: " << m_idle_timing_data.summary();
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}
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if (m_fast_timing_data.size()) {
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cerr << "Fast Timing: " << m_fast_timing_data.summary();
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}
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if (m_rapid1_timing_data.size()) {
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cerr << "Rapid1 Timing: " << m_rapid1_timing_data.summary();
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}
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if (m_rapid2_timing_data.size()) {
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cerr << "Rapid2 Timing: " << m_rapid2_timing_data.summary();
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}
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reset_timing ();
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}
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bool
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TimerTest::on_second_timeout_glibmm ()
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{
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TimerTest::on_second_timeout ();
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return true;
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}
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void
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TimerTest::on_fast_timeout ()
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{
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m_fast_timing_data.add_interval ();
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if (m_block_idle) {
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// do nothing, handled in rapid timers
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} else {
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simulate_load ("Rapid1", 4000);
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}
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}
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bool
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TimerTest::on_fast_timeout_glibmm ()
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{
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on_fast_timeout ();
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return true;
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}
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void
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TimerTest::on_rapid1_timeout ()
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{
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m_rapid1_timing_data.add_interval ();
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if (m_block_idle) {
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simulate_load ("Rapid1", rapid1_timer_usecs () * 0.5);
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} else {
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simulate_load ("Rapid1", 2000);
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}
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}
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bool
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TimerTest::on_rapid1_timeout_glibmm ()
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{
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on_rapid1_timeout ();
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return true;
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}
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void
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TimerTest::on_rapid2_timeout ()
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{
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m_rapid2_timing_data.add_interval ();
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if (m_block_idle) {
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simulate_load ("Rapid2", rapid2_timer_usecs () * 0.5);
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} else {
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simulate_load ("Rapid2", 2000);
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}
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}
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bool
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TimerTest::on_rapid2_timeout_glibmm ()
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{
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on_rapid2_timeout ();
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return true;
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}
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bool
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TimerTest::on_idle_handler ()
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{
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m_idle_timing_data.add_interval ();
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if (m_block_idle) {
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simulate_load ("Idle", rapid2_timer_usecs ());
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}
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return true;
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}
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bool
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TimerTest::on_quit_handler ()
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{
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cerr << "Quit Handler" << endl;
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m_main->quit ();
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return false;
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}
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void
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TimerTest::reset_timing ()
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{
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m_idle_timing_data.reset ();
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m_fast_timing_data.reset ();
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m_rapid1_timing_data.reset ();
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m_rapid2_timing_data.reset ();
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}
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void
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TimerTest::start_timing ()
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{
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m_idle_timing_data.start_timing ();
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m_fast_timing_data.start_timing ();
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m_rapid1_timing_data.start_timing ();
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m_rapid2_timing_data.start_timing ();
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}
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gboolean
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TimerTest::_second_timeout_handler (void *data)
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{
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TimerTest *const tt = static_cast<TimerTest*>(data);
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tt->on_second_timeout ();
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return TRUE;
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}
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gboolean
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TimerTest::_fast_timeout_handler (void *data)
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{
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TimerTest *const tt = static_cast<TimerTest*>(data);
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tt->on_fast_timeout ();
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return TRUE;
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}
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gboolean
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TimerTest::_rapid1_timeout_handler (void *data)
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{
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TimerTest *const tt = static_cast<TimerTest*>(data);
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tt->on_rapid1_timeout ();
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return TRUE;
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}
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gboolean
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TimerTest::_rapid2_timeout_handler (void *data)
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{
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TimerTest *const tt = static_cast<TimerTest*>(data);
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tt->on_rapid2_timeout ();
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return TRUE;
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}
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void
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TimerTest::reset_timing_run_main ()
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{
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reset_timing ();
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start_timing ();
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connect_quit_timeout ();
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m_main = Glib::MainLoop::create (m_context);
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m_main->run ();
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}
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void
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TimerTest::testGlibTimeoutSources ()
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{
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m_current_test_name = "testGlibTimeoutSources";
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_testGlibTimeoutSources ();
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}
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void
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TimerTest::_testGlibTimeoutSources ()
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{
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m_context = Glib::MainContext::create ();
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GSource * second_timeout_source = g_timeout_source_new (second_timer_ms ());
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g_source_set_callback (second_timeout_source , &TimerTest::_second_timeout_handler, this, NULL);
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g_source_attach (second_timeout_source, m_context->gobj());
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if (m_connect_idle) {
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connect_idle_handler ();
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reset_timing_run_main ();
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}
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GSource * fast_timeout_source = g_timeout_source_new (fast_timer_ms ());
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g_source_set_callback (fast_timeout_source , &TimerTest::_fast_timeout_handler, this, NULL);
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g_source_attach (fast_timeout_source, m_context->gobj());
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// now run with fast timeout
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reset_timing_run_main ();
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GSource * rapid1_timeout_source = g_timeout_source_new (rapid1_timer_ms ());
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g_source_set_callback (rapid1_timeout_source , &TimerTest::_rapid1_timeout_handler, this, NULL);
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g_source_attach (rapid1_timeout_source, m_context->gobj());
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// now run with fast and rapid1 timeouts
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reset_timing_run_main ();
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GSource * rapid2_timeout_source = g_timeout_source_new (rapid2_timer_ms ());
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g_source_set_callback (rapid2_timeout_source , &TimerTest::_rapid2_timeout_handler, this, NULL);
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g_source_attach (rapid2_timeout_source, m_context->gobj());
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// now run with fast, rapid1 and rapid2 timeouts
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reset_timing_run_main ();
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// cleanup
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g_source_destroy (second_timeout_source);
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g_source_unref (second_timeout_source);
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g_source_destroy (fast_timeout_source);
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g_source_unref (fast_timeout_source);
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g_source_destroy (rapid1_timeout_source);
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g_source_unref (rapid1_timeout_source);
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g_source_destroy (rapid2_timeout_source);
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g_source_unref (rapid2_timeout_source);
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}
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void
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TimerTest::testGlibmmSignalTimeouts ()
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{
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m_current_test_name = "testGlibmmSignalTimeouts";
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_testGlibmmSignalTimeouts ();
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}
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void
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TimerTest::_testGlibmmSignalTimeouts ()
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{
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m_context = Glib::MainContext::get_default ();
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Glib::signal_timeout().connect(sigc::mem_fun(*this, &TimerTest::on_second_timeout_glibmm), second_timer_ms());
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if (m_connect_idle) {
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connect_idle_handler ();
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reset_timing_run_main ();
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}
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Glib::signal_timeout().connect(sigc::mem_fun(*this, &TimerTest::on_fast_timeout_glibmm), fast_timer_ms());
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reset_timing_run_main ();
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Glib::signal_timeout().connect(sigc::mem_fun(*this, &TimerTest::on_rapid1_timeout_glibmm), rapid1_timer_ms());
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reset_timing_run_main ();
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Glib::signal_timeout().connect(sigc::mem_fun(*this, &TimerTest::on_rapid2_timeout_glibmm), rapid2_timer_ms());
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reset_timing_run_main ();
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}
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void
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TimerTest::testGlibmmTimeoutSources ()
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{
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m_current_test_name = "testGlibmmTimeoutSources";
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_testGlibmmTimeoutSources ();
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}
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void
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TimerTest::_testGlibmmTimeoutSources ()
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{
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m_context = Glib::MainContext::create ();
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const Glib::RefPtr<Glib::TimeoutSource> second_source = Glib::TimeoutSource::create(second_timer_ms());
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second_source->connect(sigc::mem_fun(*this, &TimerTest::on_second_timeout_glibmm));
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second_source->attach(m_context);
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if (m_connect_idle) {
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connect_idle_handler ();
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reset_timing_run_main ();
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}
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const Glib::RefPtr<Glib::TimeoutSource> fast_source = Glib::TimeoutSource::create(fast_timer_ms());
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fast_source->connect(sigc::mem_fun(*this, &TimerTest::on_fast_timeout_glibmm));
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fast_source->attach(m_context);
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reset_timing_run_main ();
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const Glib::RefPtr<Glib::TimeoutSource> rapid1_source = Glib::TimeoutSource::create(rapid1_timer_ms());
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sigc::connection rapid1_connection = rapid1_source->connect(sigc::mem_fun(*this, &TimerTest::on_rapid1_timeout_glibmm));
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rapid1_source->attach(m_context);
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reset_timing_run_main ();
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const Glib::RefPtr<Glib::TimeoutSource> rapid2_source = Glib::TimeoutSource::create(rapid2_timer_ms());
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sigc::connection rapid2_connection = rapid2_source->connect(sigc::mem_fun(*this, &TimerTest::on_rapid2_timeout_glibmm));
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rapid2_source->attach(m_context);
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reset_timing_run_main ();
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}
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void
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TimerTest::connect_idle_handler ()
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{
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const Glib::RefPtr<Glib::IdleSource> idle_source = Glib::IdleSource::create();
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idle_source->connect(sigc::mem_fun(*this, &TimerTest::on_idle_handler));
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idle_source->attach(m_context);
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}
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void
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TimerTest::connect_quit_timeout ()
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{
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const Glib::RefPtr<Glib::TimeoutSource> quit_source = Glib::TimeoutSource::create(test_length_ms());
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quit_source->connect(sigc::mem_fun(*this, &TimerTest::on_quit_handler));
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quit_source->attach(m_context);
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}
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void
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TimerTest::testTimers ()
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{
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m_current_test_name = "testTimers";
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_testTimers ();
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}
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void
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TimerTest::_testTimers ()
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{
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m_context = Glib::MainContext::create ();
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PBD::StandardTimer second_timer (second_timer_ms (), m_context);
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sigc::connection second_connection = second_timer.connect (sigc::mem_fun (this, &TimerTest::on_second_timeout));
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if (m_connect_idle) {
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connect_idle_handler ();
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// let the idle handler run as fast as it can
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reset_timing_run_main();
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}
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PBD::StandardTimer fast_timer (fast_timer_ms (), m_context);
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sigc::connection fast_connection = fast_timer.connect (sigc::mem_fun (this, &TimerTest::on_fast_timeout));
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reset_timing_run_main();
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PBD::StandardTimer rapid1_timer (rapid1_timer_ms (), m_context);
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sigc::connection rapid1_connection = rapid1_timer.connect (sigc::mem_fun (this, &TimerTest::on_rapid1_timeout));
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reset_timing_run_main();
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PBD::StandardTimer rapid2_timer (rapid2_timer_ms (), m_context);
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sigc::connection rapid2_connection = rapid2_timer.connect (sigc::mem_fun (this, &TimerTest::on_rapid2_timeout));
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reset_timing_run_main();
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}
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void
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TimerTest::testTimersIdleFrequency ()
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{
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m_current_test_name = "testTimersIdleFrequency";
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_testTimersIdleFrequency ();
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}
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void
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TimerTest::_testTimersIdleFrequency ()
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{
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m_block_idle = false;
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m_connect_idle = true;
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_testTimers ();
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m_block_idle = false;
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m_connect_idle = false;
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}
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void
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TimerTest::testTimersBlockIdle ()
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{
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m_current_test_name = "testTimersBlockIdle";
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_testTimersBlockIdle ();
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}
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void
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TimerTest::_testTimersBlockIdle ()
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{
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m_block_idle = true;
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m_connect_idle = true;
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_testTimers ();
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m_block_idle = false;
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m_connect_idle = false;
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}
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#ifdef PLATFORM_WINDOWS
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void
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TimerTest::testGlibTimeoutSourcesHR ()
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{
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CPPUNIT_ASSERT(set_min_timer_resolution());
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m_current_test_name = "testGlibTimeoutSourcesHR";
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_testGlibTimeoutSources ();
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CPPUNIT_ASSERT(reset_timer_resolution());
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}
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void
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TimerTest::testGlibmmSignalTimeoutsHR ()
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{
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CPPUNIT_ASSERT(set_min_timer_resolution());
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m_current_test_name = "testGlibmmSignalTimeoutsHR";
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_testGlibmmSignalTimeouts ();
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CPPUNIT_ASSERT(reset_timer_resolution());
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}
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void
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TimerTest::testGlibmmTimeoutSourcesHR ()
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{
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CPPUNIT_ASSERT(set_min_timer_resolution());
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m_current_test_name = "testGlibmmTimeoutSourcesHR";
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_testGlibmmTimeoutSources ();
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CPPUNIT_ASSERT(reset_timer_resolution());
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}
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void
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TimerTest::testTimersHR ()
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{
|
||||
CPPUNIT_ASSERT(set_min_timer_resolution());
|
||||
|
||||
m_current_test_name = "testTimersHR";
|
||||
_testTimers ();
|
||||
|
||||
CPPUNIT_ASSERT(reset_timer_resolution());
|
||||
}
|
||||
|
||||
void
|
||||
TimerTest::testTimersIdleFrequencyHR ()
|
||||
{
|
||||
CPPUNIT_ASSERT(set_min_timer_resolution());
|
||||
|
||||
m_current_test_name = "testTimersIdleFrequencyHR";
|
||||
_testTimersIdleFrequency ();
|
||||
|
||||
CPPUNIT_ASSERT(reset_timer_resolution());
|
||||
}
|
||||
|
||||
void
|
||||
TimerTest::testTimersBlockIdleHR ()
|
||||
{
|
||||
CPPUNIT_ASSERT(set_min_timer_resolution());
|
||||
|
||||
m_current_test_name = "testTimersIdleFrequencyHR";
|
||||
_testTimersBlockIdle ();
|
||||
|
||||
CPPUNIT_ASSERT(reset_timer_resolution());
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,152 @@
|
|||
#include <cppunit/TestFixture.h>
|
||||
#include <cppunit/extensions/HelperMacros.h>
|
||||
|
||||
#include "glibmm/main.h"
|
||||
|
||||
#include "pbd/timing.h"
|
||||
|
||||
/**
|
||||
* 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.
|
||||
*/
|
||||
class TimerTest : public CppUnit::TestFixture
|
||||
{
|
||||
CPPUNIT_TEST_SUITE (TimerTest);
|
||||
CPPUNIT_TEST (testGlibTimeoutSources);
|
||||
CPPUNIT_TEST (testGlibmmSignalTimeouts);
|
||||
CPPUNIT_TEST (testGlibmmTimeoutSources);
|
||||
CPPUNIT_TEST (testTimers);
|
||||
CPPUNIT_TEST (testTimersIdleFrequency);
|
||||
CPPUNIT_TEST (testTimersBlockIdle);
|
||||
#ifdef PLATFORM_WINDOWS
|
||||
CPPUNIT_TEST (testGlibTimeoutSourcesHR);
|
||||
CPPUNIT_TEST (testGlibmmSignalTimeoutsHR);
|
||||
CPPUNIT_TEST (testGlibmmTimeoutSourcesHR);
|
||||
CPPUNIT_TEST (testTimersHR);
|
||||
CPPUNIT_TEST (testTimersIdleFrequencyHR);
|
||||
CPPUNIT_TEST (testTimersBlockIdleHR);
|
||||
#endif
|
||||
CPPUNIT_TEST_SUITE_END ();
|
||||
|
||||
public:
|
||||
|
||||
TimerTest ()
|
||||
: m_connect_idle(false)
|
||||
, m_block_idle(false)
|
||||
{ }
|
||||
|
||||
void _testGlibTimeoutSources ();
|
||||
void _testGlibmmSignalTimeouts ();
|
||||
void _testGlibmmTimeoutSources ();
|
||||
void _testTimers ();
|
||||
void _testTimersIdleFrequency ();
|
||||
void _testTimersBlockIdle ();
|
||||
|
||||
void testGlibTimeoutSources ();
|
||||
void testGlibmmSignalTimeouts ();
|
||||
void testGlibmmTimeoutSources ();
|
||||
void testTimers ();
|
||||
void testTimersIdleFrequency ();
|
||||
void testTimersBlockIdle ();
|
||||
|
||||
#ifdef PLATFORM_WINDOWS
|
||||
void testGlibTimeoutSourcesHR ();
|
||||
void testGlibmmSignalTimeoutsHR ();
|
||||
void testGlibmmTimeoutSourcesHR ();
|
||||
void testTimersHR ();
|
||||
void testTimersIdleFrequencyHR ();
|
||||
void testTimersBlockIdleHR ();
|
||||
#endif
|
||||
|
||||
private:
|
||||
|
||||
static guint64 second_timer_usecs ()
|
||||
{ return 1000000; }
|
||||
|
||||
static guint64 fast_timer_usecs ()
|
||||
{ return 100000; }
|
||||
|
||||
static guint64 rapid1_timer_usecs ()
|
||||
{ return 40000; }
|
||||
|
||||
static guint64 rapid2_timer_usecs ()
|
||||
{ return 15000; }
|
||||
|
||||
static guint64 second_timer_ms ()
|
||||
{ return second_timer_usecs () / 1000; }
|
||||
|
||||
static guint64 fast_timer_ms ()
|
||||
{ return fast_timer_usecs () / 1000; }
|
||||
|
||||
static guint64 rapid1_timer_ms ()
|
||||
{ return rapid1_timer_usecs () / 1000; }
|
||||
|
||||
static guint64 rapid2_timer_ms ()
|
||||
{ return rapid2_timer_usecs () / 1000; }
|
||||
|
||||
static guint64 test_length_ms ()
|
||||
{ return 10 * 1000; }
|
||||
|
||||
std::string m_current_test_name;
|
||||
|
||||
bool m_connect_idle;
|
||||
bool m_block_idle;
|
||||
|
||||
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 ();
|
||||
|
||||
static gboolean _second_timeout_handler (void*);
|
||||
static gboolean _fast_timeout_handler (void*);
|
||||
static gboolean _rapid1_timeout_handler (void*);
|
||||
static gboolean _rapid2_timeout_handler (void*);
|
||||
|
||||
void start_timing ();
|
||||
void reset_timing ();
|
||||
|
||||
void reset_timing_run_main ();
|
||||
|
||||
static void
|
||||
simulate_load (const std::string& name, guint64 time_usecs);
|
||||
Glib::RefPtr<Glib::MainLoop> m_main;
|
||||
Glib::RefPtr<Glib::MainContext> m_context;
|
||||
|
||||
void connect_idle_handler ();
|
||||
void connect_quit_timeout ();
|
||||
|
||||
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;
|
||||
};
|
||||
|
|
@ -160,6 +160,7 @@ def build(bld):
|
|||
test/mutex_test.cc
|
||||
test/scalar_properties.cc
|
||||
test/signals_test.cc
|
||||
test/timer_test.cc
|
||||
test/convert_test.cc
|
||||
test/filesystem_test.cc
|
||||
test/test_common.cc
|
||||
|
|
|
|||
1
wscript
1
wscript
|
|
@ -841,6 +841,7 @@ def configure(conf):
|
|||
# needed for at least libsmf
|
||||
conf.check_cc(function_name='htonl', header_name='winsock2.h', lib='ws2_32')
|
||||
conf.env.append_value('LIB', 'ws2_32')
|
||||
conf.env.append_value('LIB', 'winmm')
|
||||
# needed for mingw64 packages, not harmful on normal mingw build
|
||||
conf.env.append_value('LIB', 'intl')
|
||||
conf.check_cc(function_name='regcomp', header_name='regex.h',
|
||||
|
|
|
|||
Loading…
Reference in New Issue