mirror of https://github.com/BOINC/boinc.git
109 lines
2.8 KiB
PHP
109 lines
2.8 KiB
PHP
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<?php
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require_once("docutil.php");
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page_head("Screensaver Logic");
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echo "
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<p>
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The screensaver supports:
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<ol>
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<li>
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Fullscreen graphics from project applications
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<li>
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A default BOINC logo screensaver when no running applications support
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graphics
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<li>
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Screen blanking after a given time
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</ol>
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<p>
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If the screensaver is running, the core client will try to devote screen
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time to a different project each time the CPUs are rescheduled.
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<pre>
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request_ss_app():
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choose some app that can do graphics
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if app exists:
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request app (from a different project if possible)
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to do fullscreen graphics
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ACK deadline = now + 5 sec
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else:
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do_boinc_logo_ss = true
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// called to force poll function to request another app to do graphics
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//
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// this is called by schedule_cpus() whenever CPUs are rescheduled
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//
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reset():
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tell any fullscreen app to hide
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do_boinc_logo_ss = false
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// called when core client receives a message from the screensaver module
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//
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start_ss(new_blank_time):
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save all apps' modes
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hide all apps
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blank_time = new_blank_time
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if activities not suspended:
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request_ss_app()
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// called when screensaver module quits
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//
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stop_ss():
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clean up stuff
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restore apps' modes
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// called once a second
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//
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poll():
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if activities not suspended:
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if doing screensaver:
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if blank_time != 0 && now > blank_time:
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if not screen not already blanked:
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tell any fullscreen app to hide
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blank screen
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do_boinc_logo_ss = false
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else:
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get the fullscreen app
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if app exists:
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if app has sent ACK:
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do_boinc_logo_ss = false
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else if ACK deadline has passed:
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tell app to hide
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do_boinc_logo_ss = true
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else:
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request_ss_app()
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else:
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do_boinc_logo_ss = true
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/////////////////////////
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logic of screensaver program:
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screensaver starts
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creates blank windows on every screen
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show \"screensaver loading\" in all windows
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if core client not running and not set to run on startup
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show \"boinc not running, auto startup not detected
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please reinstall and select this option\"
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10 times, every 1 sec, then once every 30 sec
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set_screensaver_mode RPC to core client
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pass desktop/windowstation, blank time
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get_screensaver_mode
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returns:
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- some app is doing fullscreen
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- no graphics-capable app
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- BOINC suspended
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- time to blank
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after each get_screensaver_mode (beyond initial 10 sec):
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if no app is doing graphics,
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do get_results RPC
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show string on all windows
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</pre>
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";
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page_tail();
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?>
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