bool CScreensaver::DestroyDataManagementThread() {
m_bQuitDataManagementProc = true; // Tell DataManagementProc thread to exit
if (!m_hDataManagementThread) return true;
for (int i=0; i<10; i++) { // Wait up to 1 second for DataManagementProc thread to exit
if (m_bDataManagementProcStopped) return true;
boinc_sleep(0.1);
}
if (rpc) {
rpc->close(); // In case DataManagementProc is hung waiting for RPC
}
m_hDataManagementThread = NULL; // Don't delay more if this routine is called again.
if (m_hGraphicsApplication) {
terminate_screensaver(m_hGraphicsApplication, NULL);
m_hGraphicsApplication = 0;
}
return true;
}
DataMgmtProcType CScreensaver::DataManagementProc() {
int retval = 0;
int suspend_reason = 0;
RESULT* theResult = NULL;
RESULT* graphics_app_result_ptr = NULL;
RESULT previous_result;
// previous_result_ptr = &previous_result when previous_result is valid, else NULL
RESULT* previous_result_ptr = NULL;
int iResultCount = 0;
int iIndex = 0;
double default_phase_start_time = 0.0;
double science_phase_start_time = 0.0;
double last_change_time = 0.0;
// If we run default screensaver during science phase because no science graphics
// are available, then shorten next default graphics phase by that much time.
double default_saver_start_time_in_science_phase = 0.0;
double default_saver_duration_in_science_phase = 0.0;
SS_PHASE ss_phase = DEFAULT_SS_PHASE;
bool switch_to_default_gfx = false;
bool killing_default_gfx = false;
int exit_status = 0;
char* default_ss_dir_path = NULL;
char full_path[1024];
BOINCTRACE(_T("CScreensaver::DataManagementProc - Display screen saver loading message\n"));
SetError(TRUE, SCRAPPERR_BOINCSCREENSAVERLOADING); // No GFX App is running: show moving BOINC logo
#ifdef _WIN32
m_tThreadCreateTime = time(0);
// Set the starting point for iterating through the results
m_iLastResultShown = 0;
m_tLastResultChangeTime = 0;
#endif
m_bDefault_ss_exists = false;
m_bScience_gfx_running = false;
m_bDefault_gfx_running = false;
m_bShow_default_ss_first = false;
#ifdef __APPLE__
m_vIncompatibleGfxApps.clear();
default_ss_dir_path = "/Library/Application Support/BOINC Data";
#else
default_ss_dir_path = (char*)m_strBOINCInstallDirectory.c_str();
#endif
strlcpy(full_path, default_ss_dir_path, sizeof(full_path));
strlcat(full_path, PATH_SEPARATOR, sizeof(full_path));
strlcat(full_path, THE_DEFAULT_SS_EXECUTABLE, sizeof(full_path));
if (boinc_file_exists(full_path)) {
m_bDefault_ss_exists = true;
} else {
SetError(TRUE, SCRAPPERR_CANTLAUNCHDEFAULTGFXAPP); // No GFX App is running: show moving BOINC logo
}
if (m_bDefault_ss_exists && m_bShow_default_ss_first) {
ss_phase = DEFAULT_SS_PHASE;
default_phase_start_time = dtime();
science_phase_start_time = 0;
switch_to_default_gfx = true;
} else {
ss_phase = SCIENCE_SS_PHASE;
default_phase_start_time = 0;
science_phase_start_time = dtime();
}
while (true) {
for (int i = 0; i < 4; i++) {
// ***
// *** Things that should be run frequently.
// *** 4 times per second.
// ***
// Are we supposed to exit the screensaver?
if (m_bQuitDataManagementProc) { // If main thread has requested we exit
BOINCTRACE(_T("CScreensaver::DataManagementProc - Thread told to stop\n"));
if (m_hGraphicsApplication || graphics_app_result_ptr) {
if (m_bDefault_gfx_running) {
BOINCTRACE(_T("CScreensaver::DataManagementProc - Terminating default screensaver\n"));
terminate_default_screensaver(m_hGraphicsApplication);
} else {
BOINCTRACE(_T("CScreensaver::DataManagementProc - Terminating screensaver\n"));
terminate_screensaver(m_hGraphicsApplication, graphics_app_result_ptr);
}
graphics_app_result_ptr = NULL;
previous_result_ptr = NULL;
m_hGraphicsApplication = 0;
}
BOINCTRACE(_T("CScreensaver::DataManagementProc - Stopping...\n"));
m_bDataManagementProcStopped = true; // Tell main thread that we exited
return 0; // Exit the thread
}
boinc_sleep(0.25);
}
// ***
// *** Things that should be run less frequently.
// *** 1 time per second.
// ***
// Blank screen saver?
if ((m_dwBlankScreen) && (time(0) > m_dwBlankTime) && (m_dwBlankTime > 0)) {
BOINCTRACE(_T("CScreensaver::DataManagementProc - Time to blank\n"));
SetError(FALSE, SCRAPPERR_SCREENSAVERBLANKED); // Blanked - hide moving BOINC logo
m_bQuitDataManagementProc = true;
continue; // Code above will exit the thread
}
BOINCTRACE(_T("CScreensaver::DataManagementProc - ErrorMode = '%d', ErrorCode = '%x'\n"), m_bErrorMode, m_hrError);
if (!m_bConnected) {
HandleRPCError();
}
if (m_bConnected) {
// Do we need to get the core client state?
if (m_bResetCoreState) {
// Try and get the current state of the CC
retval = rpc->get_state(state);
if (retval) {
// CC may not yet be running
HandleRPCError();
continue;
} else {
m_bResetCoreState = false;
}
}
// Update our task list
retval = rpc->get_screensaver_tasks(suspend_reason, results);
if (retval) {
// rpc call returned error
HandleRPCError();
m_bResetCoreState = true;
continue;
}
} else {
results.clear();
}
// Time to switch to default graphics phase?
if (m_bDefault_ss_exists && (ss_phase == SCIENCE_SS_PHASE) && (m_fGFXDefaultPeriod > 0)) {
if (science_phase_start_time && ((dtime() - science_phase_start_time) > m_fGFXSciencePeriod)) {
if (!m_bDefault_gfx_running) {
switch_to_default_gfx = true;
}
ss_phase = DEFAULT_SS_PHASE;
default_phase_start_time = dtime();
science_phase_start_time = 0;
if (m_bDefault_gfx_running && default_saver_start_time_in_science_phase) {
// Remember how long default graphics ran during science phase
default_saver_duration_in_science_phase += (dtime() - default_saver_start_time_in_science_phase);
}
default_saver_start_time_in_science_phase = 0;
}
}
// Time to switch to science graphics phase?
if ((ss_phase == DEFAULT_SS_PHASE) && m_bConnected && (m_fGFXSciencePeriod > 0)) {
if (default_phase_start_time &&
((dtime() - default_phase_start_time + default_saver_duration_in_science_phase)
> m_fGFXDefaultPeriod)) {
// BOINCTRACE(_T("CScreensaver::Ending Default phase: now=%f, default_phase_start_time=%f, default_saver_duration_in_science_phase=%f\n"),
// dtime(), default_phase_start_time, default_saver_duration_in_science_phase);
ss_phase = SCIENCE_SS_PHASE;
default_phase_start_time = 0;
default_saver_duration_in_science_phase = 0;
science_phase_start_time = dtime();
if (m_bDefault_gfx_running) {
default_saver_start_time_in_science_phase = science_phase_start_time;
}
switch_to_default_gfx = false;
}
}
// Core client suspended?
// We ignore SUSPEND_REASON_CPU_USAGE in SS coordinator, so it won't kill graphics apps for
// short-term CPU usage spikes (such as anti-virus.) Added 9 April 2010
if (suspend_reason && !(suspend_reason & (SUSPEND_REASON_CPU_THROTTLE | SUSPEND_REASON_CPU_USAGE))) {
if (!m_bDefault_gfx_running) {
SetError(TRUE, m_hrError); // No GFX App is running: show moving BOINC logo
if (m_bDefault_ss_exists) {
switch_to_default_gfx = true;
}
}
}
if (switch_to_default_gfx) {
if (m_bScience_gfx_running) {
if (m_hGraphicsApplication || previous_result_ptr) {
// use previous_result_ptr because graphics_app_result_ptr may no longer be valid
terminate_screensaver(m_hGraphicsApplication, previous_result_ptr);
if (m_hGraphicsApplication == 0) {
graphics_app_result_ptr = NULL;
m_bScience_gfx_running = false;
} else {
// HasProcessExited() test will clear m_hGraphicsApplication and graphics_app_result_ptr
}
previous_result_ptr = NULL;
}
} else {
if (!m_bDefault_gfx_running) {
switch_to_default_gfx = false;
retval = launch_default_screensaver(default_ss_dir_path, m_hGraphicsApplication);
if (retval) {
m_hGraphicsApplication = 0;
previous_result_ptr = NULL;
graphics_app_result_ptr = NULL;
m_bDefault_gfx_running = false;
SetError(TRUE, SCRAPPERR_CANTLAUNCHDEFAULTGFXAPP); // No GFX App is running: show moving BOINC logo
} else {
m_bDefault_gfx_running = true;
if (ss_phase == SCIENCE_SS_PHASE) {
default_saver_start_time_in_science_phase = dtime();
}
SetError(FALSE, SCRAPPERR_BOINCSCREENSAVERLOADING); // A GFX App is running: hide moving BOINC logo
}
}
}
}
if ((ss_phase == SCIENCE_SS_PHASE) && !switch_to_default_gfx) {
#if SIMULATE_NO_GRAPHICS /* FOR TESTING */
if (!m_bDefault_gfx_running) {
SetError(TRUE, m_hrError); // No GFX App is running: show moving BOINC logo
if (m_bDefault_ss_exists) {
switch_to_default_gfx = true;
}
}
#else /* NORMAL OPERATION */
if (m_bScience_gfx_running) {
// Is the current graphics app's associated task still running?
if ((m_hGraphicsApplication) || (graphics_app_result_ptr)) {
iResultCount = (int)results.results.size();
graphics_app_result_ptr = NULL;
// Find the current task in the new results vector (if it still exists)
for (iIndex = 0; iIndex < iResultCount; iIndex++) {
theResult = results.results.at(iIndex);
if (is_same_task(theResult, previous_result_ptr)) {
graphics_app_result_ptr = theResult;
previous_result = *theResult;
previous_result_ptr = &previous_result;
break;
}
}
// V6 graphics only: if worker application has stopped running, terminate_screensaver
if ((graphics_app_result_ptr == NULL) && (m_hGraphicsApplication != 0)) {
if (previous_result_ptr) {
BOINCTRACE(_T("CScreensaver::DataManagementProc - %s finished\n"),
previous_result.graphics_exec_path
);
}
terminate_screensaver(m_hGraphicsApplication, previous_result_ptr);
previous_result_ptr = NULL;
if (m_hGraphicsApplication == 0) {
graphics_app_result_ptr = NULL;
m_bScience_gfx_running = false;
// Save previous_result and previous_result_ptr for get_random_graphics_app() call
} else {
// HasProcessExited() test will clear m_hGraphicsApplication and graphics_app_result_ptr
}
}
if (last_change_time && (m_fGFXChangePeriod > 0) && ((dtime() - last_change_time) > m_fGFXChangePeriod) ) {
if (count_active_graphic_apps(results, previous_result_ptr) > 0) {
if (previous_result_ptr) {
BOINCTRACE(_T("CScreensaver::DataManagementProc - time to change: %s / %s\n"),
previous_result.name, previous_result.graphics_exec_path
);
}
terminate_screensaver(m_hGraphicsApplication, graphics_app_result_ptr);
if (m_hGraphicsApplication == 0) {
graphics_app_result_ptr = NULL;
m_bScience_gfx_running = false;
// Save previous_result and previous_result_ptr for get_random_graphics_app() call
} else {
// HasProcessExited() test will clear m_hGraphicsApplication and graphics_app_result_ptr
}
}
last_change_time = dtime();
}
}
} // End if (m_bScience_gfx_running)
// If no current graphics app, pick an active task at random
// and launch its graphics app
//
if ((m_bDefault_gfx_running || (m_hGraphicsApplication == 0)) && (graphics_app_result_ptr == NULL)) {
if (suspend_reason && !(suspend_reason & (SUSPEND_REASON_CPU_THROTTLE | SUSPEND_REASON_CPU_USAGE))) {
graphics_app_result_ptr = NULL;
} else {
graphics_app_result_ptr = get_random_graphics_app(results, previous_result_ptr);
previous_result_ptr = NULL;
}
if (graphics_app_result_ptr) {
if (m_bDefault_gfx_running) {
terminate_default_screensaver(m_hGraphicsApplication);
killing_default_gfx = true;
// Remember how long default graphics ran during science phase
if (default_saver_start_time_in_science_phase) {
default_saver_duration_in_science_phase += (dtime() - default_saver_start_time_in_science_phase);
//BOINCTRACE(_T("CScreensaver::During Science phase: now=%f, default_saver_start_time=%f, default_saver_duration=%f\n"),
// dtime(), default_saver_start_time_in_science_phase, default_saver_duration_in_science_phase);
}
default_saver_start_time_in_science_phase = 0;
// HasProcessExited() test will clear
// m_hGraphicsApplication and graphics_app_result_ptr
} else {
retval = launch_screensaver(graphics_app_result_ptr, m_hGraphicsApplication);
if (retval) {
m_hGraphicsApplication = 0;
previous_result_ptr = NULL;
graphics_app_result_ptr = NULL;
m_bScience_gfx_running = false;
} else {
// A GFX App is running: hide moving BOINC logo
//
SetError(FALSE, SCRAPPERR_BOINCSCREENSAVERLOADING);
last_change_time = dtime();
m_bScience_gfx_running = true;
// Make a local copy of current result, since original pointer
// may have been freed by the time we perform later tests
previous_result = *graphics_app_result_ptr;
previous_result_ptr = &previous_result;
if (previous_result_ptr) {
BOINCTRACE(_T("CScreensaver::DataManagementProc - launching %s\n"),
previous_result.graphics_exec_path
);
}
}
}
} else {
if (!m_bDefault_gfx_running) {
// We can't run a science graphics app, so run the default graphics if available
SetError(TRUE, m_hrError);
if (m_bDefault_ss_exists) {
switch_to_default_gfx = true;
}
}
} // End if no science graphics available
} // End if no current science graphics app is running
#endif // ! SIMULATE_NO_GRAPHICS
if (switch_to_default_gfx) {
switch_to_default_gfx = false;
if (!m_bDefault_gfx_running) {
retval = launch_default_screensaver(default_ss_dir_path, m_hGraphicsApplication);
if (retval) {
m_hGraphicsApplication = 0;
previous_result_ptr = NULL;
graphics_app_result_ptr = NULL;
m_bDefault_gfx_running = false;
SetError(TRUE, SCRAPPERR_CANTLAUNCHDEFAULTGFXAPP);
// No GFX App is running: show BOINC logo
} else {
m_bDefault_gfx_running = true;
default_saver_start_time_in_science_phase = dtime();
SetError(FALSE, SCRAPPERR_BOINCSCREENSAVERLOADING);
// Default GFX App is running: hide moving BOINC logo
}
}
}
} // End if ((ss_phase == SCIENCE_SS_PHASE) && !switch_to_default_gfx)
// Is the graphics app still running?
if (m_hGraphicsApplication) {
if (HasProcessExited(m_hGraphicsApplication, exit_status)) {
// Something has happened to the previously selected screensaver
// application. Start a different one.
BOINCTRACE(_T("CScreensaver::DataManagementProc - Graphics application isn't running, start a new one.\n"));
if (m_bDefault_gfx_running) {
// If we were able to connect to core client
// but gfx app can't, don't use it.
//
BOINCTRACE(_T("CScreensaver::DataManagementProc - Default graphics application exited with code %d.\n"), exit_status);
if (!killing_default_gfx) { // If this is an unexpected exit
if (exit_status == DEFAULT_GFX_CANT_CONNECT) {
SetError(TRUE, SCRAPPERR_DEFAULTGFXAPPCANTCONNECT);
// No GFX App is running: show moving BOINC logo
} else {
SetError(TRUE, SCRAPPERR_DEFAULTGFXAPPCRASHED);
// No GFX App is running: show moving BOINC logo
}
m_bDefault_ss_exists = false;
ss_phase = SCIENCE_SS_PHASE;
}
killing_default_gfx = false;
}
SetError(TRUE, SCRAPPERR_BOINCNOGRAPHICSAPPSEXECUTING);
// No GFX App is running: show moving BOINC logo
m_hGraphicsApplication = 0;
graphics_app_result_ptr = NULL;
m_bDefault_gfx_running = false;
m_bScience_gfx_running = false;
#ifdef __APPLE__
launchedGfxApp("", 0, -1);
#endif
continue;
}
}
} // end while(true)
}
