## CS 591 K1: Data Stream Processing and Analytics Spring 2020 2/06: Notions of time and progress Vasiliki (Vasia) Kalavri vkalavri@bu.edu ## Mobile game application • input stream: user activity How long do we have to wait before we decide that we have seen all events? ## Watermarks ## Stream progress  http://streamingbook 3b52765752b4fce9120d6/p10_1.jpg) http://streamingbook.net/fig/2-9 • A watermark is a global progress metric that indicates a certain point in time when we are confident that no more delayed events

## NativeScript UI 100% ## TJ VanToll ☐ @tjvantoll Progress $ ^{®} $  ## Agenda • Introduce {N} UI • Demo □ Raucous ## Welcome to Progress NativeScript UI Pro Progress NativeScript Pro UI a suite of rich-UI components targeting the NativeScript platform. The controls are based on the familiar Progress Telerik UI for for Android and Progress Telerik UI for iOS suites and expose common API for utilizing these suites Android and iOS cross-platform development. The suite offers the following components: ## Calendar •

## Why I Was Wrong About TypeScript TJ VanToll Progress $ ^{®} $ DevReach 2013 THE PREMIER DEVELOPER CONFERENCE IN CENTRAL & EASTERN EUROPE ## TypeScript TypeScript Modules Decorators Generics nts/1/8/e/7/18e732be57131655994e4827daf7c7ca/p31_1.jpg) ## Why I Was Wrong About TypeScript ## Progress $ ^{®} $  ![Im Non JS developers that need to write JS code? ## Thanks! @tjvantoll http://bit.ly/DR2017-vantoll Progress $ ^{®} $

Mellon University ## Progress guarantees • Progress guarantees are a way to theoretically categorize concurrent algorithms: • Blocking: No guarantee • Obstruction free (progress in isolation): A single algorithms are immune to deadlock - Lock free (at least one thread makes progress): At any given time, at least one thread is making progress on its operation • Guarantees system-wide throughput. Some operations but individual operations are never guaranteed to ever complete - Wait free (all threads make progress): Every operation completes in a bounded number of steps regardless of other concurrent operations

## Progress $ ^{®} $ NEXT 2018 ## Beautiful Native Mobile Apps with NativeScript and OpenEdge Edsel Garcia OpenEdge Development Team May 2018  ## Progress $ ^{®} $ NEXT 2018 JSDO ## JSDO “A JSDO is an object designed to simplify access to relational

= vbox.findMachine("uuid or name of machine to start") progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) Also, see /bindings/glue/python/samples/vboxshell vbox.findMachine(name) session = mgr.mgr.getSessionObject(vbox) progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) mgr.closeMachineSession(session) Following capitalized. IProgress *progress; ... rc = vbox->vtbl->LaunchVMProcess( machine, /* this */ session, /* arg 1 */ sessionType, /* arg 2 */ env, /* arg 3 */ &progress /* Out */ ); #####

= vbox.findMachine("uuid or name of machine to start") progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) Also, see sdk/bindings/glue/python/samples/vboxshell = vbox.findMachine(name) session = mgr.getSessionObject(vbox) progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) mgr.closeMachineSession(session) The following capitalized: IProgress *progress; ... rc = IMachine_LaunchVMProcess( machine, /* this */ session, /* arg 1 */ sessionType, /* arg 2 */ env, /* arg 3 */ &progress /* Out */ ); All objects

= vbox.findMachine("uuid or name of machine to start") progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) Also, see /bindings/glue/python/samples/vboxshell vbox.findMachine(name) session = mgr.mgr.getSessionObject(vbox) progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) mgr.closeMachineSession(session) Following capitalized. IProgress *progress; ... rc = vbox->vtbl->LaunchVMProcess( machine, /* this */ session, /* arg 1 */ sessionType, /* arg 2 */ env, /* arg 3 */ &progress /* Out */ ); #####

= vbox.findMachine("uuid or name of machine to start") progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) Also, see /bindings/glue/python/samples/vboxshell vbox.findMachine(name) session = mgr.mgr.getSessionObject(vbox) progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) mgr.closeMachineSession(session) Following capitalized. IProgress *progress; ... rc = vbox->vtbl->LaunchVMProcess( machine, /* this */ session, /* arg 1 */ sessionType, /* arg 2 */ env, /* arg 3 */ &progress /* Out */ ); #####

= vbox.findMachine("uuid or name of machine to start") progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) Also, see /bindings/glue/python/samples/vboxshell vbox.findMachine(name) session = mgr.mgr.getSessionObject(vbox) progress = mach.launchVMProcess(session, "gui", "") progress.waitForCompletion(-1) mgr.closeMachineSession(session) Following capitalized: IProgress *progress; ... rc = IMachine_LaunchVMProcess( machine, /* this */ session, /* arg 1 */ sessionType, /* arg 2 */ env, /* arg 3 */ &progress /* Out */ ); All objects