Notes on actors in the Squeak image
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# Actors in the Smalltalk image
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## Dataspaces
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- SystemDataspace
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- LinuxInputDataspace
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- TelephonyDataspace
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- WidgetDataspace
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## AppRegistryDaemon
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- monitors for interest in open commands in SystemDataspace
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- adds a menu item that, when clicked, issues an open command in same
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- ACTION: should use the shared dataspace instead
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## CallManager
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- adds "open dialer" to app menu
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- ACTION: move to shared dataspace
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- monitors telephony dataspace for:
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- active call -> opens call control UI, asserts "call in progress"
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- modem present -> adds to set, removes from set when retracted
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- (re)selects a modem from set of modems whenever no selection exists or current selection not in set
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- unused `hangupAll`, interacts with telephony dataspace
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- BUG: HayesModemCallState needs to respond to <disconnect-call all _>
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- unused `dial:`, interacts with telephony dataspace
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## MachineLock
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- SystemDataspace. Assigns locks FIFO to entity carried in <acquire-lock lockid $entity>
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- ACTION: make this machine-wide/shared!!
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- clients:
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- HayesModemActor: <system-device "/dev/...">
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- MockModemActor: <mock-system-device "/dev/...">
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- SamsungGalaxyS7ModemActor: <system-device "/dev/...">
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## WidgetDaemon
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- WidgetDataspace. Observers of <window id $w> trigger a new window, with its own dataspace `w`
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- WidgetWindow is a complex beastie
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## SoundEffectsDaemon
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- SystemDataspace. Plays sounds in response to continuous-sound and alert-sound assertions.
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## AudioProfileDaemon
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- tracks LinuxInputDataspace headset/mic jack events
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- reflects them as presence assertions in LinuxInputDataspace
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- ACTION: move these assertions elsewhere
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- tracks LinuxIOAudioSinkMapping entries to map abstract devices to concrete mixer output names
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- tracks
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- TelephonyDataspace: ringing, call active, speakerphone active
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- SystemDataspace: alert playing
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- LinuxInputDataspace: headset speaker present
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- uses these to determine which subset of {speaker, headset, earpiece} should be enabled
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- uses amixer to turn these on/off in response
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- ACTION: switch to alsaucm and amixer, or be more sophisticated about specifying profiles
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## RingToneDaemon
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- monitors TelephonyDataspace for ring, sms, internal-ring conditions and asserts sound effects in response
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## BacklightControlDaemon
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- adds brightness control app to menu
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- BrightnessUI does a bunch of sophisticated stuff that might be better done outside the UI?
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- SystemDataspace <blank-screen> --> blanks all framebuffer devices
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- TelephonyDataspace <call-in-progress> --> when speakerphone NOT in use, tracks proximity
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- if proximity (in LinuxInputDataspace) is above a threshold, asserts <disable-touchscreen> and <blank-screen>
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## PowerStatusDaemon
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- adds power report app to menu
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- PowerReportUI
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## MachineConfiguration
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- selects a MachineVariant and instantiates it during image configuredness
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## PinePhoneProximitySensorDaemon
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- LinuxInputDataspace during observation of proximity-above-threshold, tracks proximity
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- polls the device file every 0.1s
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## HardwareButtonsDaemon
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- currently just logs switch state changes
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## TiledMapDemoApp
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- adds an entry to the apps menu
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- otherwise traditional morphic
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## PowerButtonListener
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- LinuxInputDataspace <primary-device-event-type $name KEY> --> listens to it
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- if it's a POWER button, toggles screen blanking and touchscreen disabling
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## SmsStore '/home/tonyg/src/squeak-phone/sms-store'
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- TelephonyDataspace sms-delivery and sms-transmission cause new entries in the filesystem-based database
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- adds "open composer" app menu item
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- SmsComposerUI
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## MockModem 'mock1'
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- as mock:
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- TelephonyDataspace
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- assert LinuxIOHayesModemPresent
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- on <place-call ...> create a MockModemCall actor
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- on <simulate-incoming-call ...> do the same
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- on <sms-transmission ...> explore the record and acknowledge the continuation
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- HayesModemActor:
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- internal interactions on its own per-modem dataspace
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- messes around with its parent/child linked-actor relationship to have a chance to tear down the modem on shutdown
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- TelephonyDataspace
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- assert LinuxIOHayesModemPresent
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- on <place-call ...>, sends ATD
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- spawns supporting actors:
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- HayesModemCallDriver
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- on unsolicited DSCI events, creates or updates a HayesModemCallState
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- which interacts via TelephonyDataspace
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- responds to answer-call, disconnect-call
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- publishes LinuxIOTelephonyActiveCall
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- HayesModemSmsDriver
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- TelephonyDataspace sms-transmission -> sends it
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- private modem dataspace unsolicited CMTI -> downloads waiting messages
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- SamsungGalaxyS7ModemActor:
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- out of date wrt state of the art, I've been using the PinePhone for dev
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# Configuration of the system
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All `MachineVariant`s:
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- specify whether or not to debug exceptions in actors
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- start:
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- AppRegistryDaemon
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- WidgetDaemon
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- CallManager
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- SoundEffectsDaemon
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- AudioProfileDaemon
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- RingToneDaemon
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- BacklightControlDaemon
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- HardwareButtonsDaemon
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- PowerStatusDaemon
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- TiledMapDemoApp
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- PowerButtonListener
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MachineDesktop:
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- stops LinuxInputDaemon, LinuxInputIndex
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- uninstalls PhoneWorldMorph
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- enables syntax highlighting
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- starts an SmsStore in tonyg's home directory
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- starts either a mock or hayes modem, depending on class configuration
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- configures RingToneDaemon with sounds in tonyg's home directory
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MachinePostmarketOS:
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- starts LinuxInputDaemon, LinuxInputIndex
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- installs PhoneWorldMorph
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- restores an audio profile (if there is a sensible one to choose) using `alsactl restore -f -`
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- disables syntax highlighting
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- starts an SmsStore in user's home directory
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- subclasses
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- MachinePinePhone:
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- sets DPI to 270 "We don't seem to be able to discover the correct setting from the hardware yet"
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- starts a hayes modem on '/dev/EG25.AT'
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- starts PinePhoneProximitySensorDaemon
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- configures RingToneDaemon with sounds in user's home directory
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- asserts `LinuxIOAudioSinkMapping`s
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speaker -> Line Out
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headset -> Headphone
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earpiece -> Earpiece
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- MachineQemuAmd64:
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- starts a mock modem on 'mock1'
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- configures RingToneDaemon with sounds in user's home directory
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- MachineSamsungGalaxyS7:
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- supervises SamsungGalaxyS7ModemActor
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