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Book the dates: Pharo Days 2021: 3/4 March 2022 @ Lille
by stephane ducasse Oct. 22, 2021

Oct. 22, 2021

Dear Pharoers We are super excited to announce the dates of the next Pharo Days. Pharo Days 2021 will be held at Lille 3/4 March 2022 We will set soon a program and a website. Stay tuned. S.

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This week (41/2021) on the Pharo Issue Tracker
by Marcus Denker Oct. 15, 2021

Oct. 15, 2021

We merged 25 Pull Requests and closed 13 Issue tracker entries Pharo 9 ======== - [P9] backporting-new-iceberg #10176 https://github.com/pharo-project/pharo/pull/10176 - enabling-debug-window-in-windows-P9 #10129 https://github.com/pharo-project/pharo/pull/10129 - [P9] 10085-Pharo-does-not-work-on-network-drive-on-Windows #10137 https://github.com/pharo-project/pharo/pull/10137 - P9-Backport-PR10099: Added two missing methods #tfPointerAddress #10146 https://github.com/pharo-project/pharo/pull/10146 - 10147-Fix-invalid-non-Boolean-return-when-CPU-watcher-is-enabled-For-P9--P10 #10148 https://github.com/pharo-project/pharo/pull/10148 - 10152-Backport-Pharo9-10113-speedup-isReferenced-for-ClassVariables-from-a-Pool- #10157 https://github.com/pharo-project/pharo/pull/10157 Pharo 8 ======= - Fix invalid (non-Boolean) return when CPU watcher is enabled #10134 https://github.com/pharo-project/pharo/pull/10134 Fixes ===== - 10085-Pharo-does-not-work-on-network-drive-on-Windows-P10 #10138 https://github.com/pharo-project/pharo/pull/10138 - 10144-SystemNavigationobsoleteClasses-should-use-isObsolete #10145 https://github.com/pharo-project/pharo/pull/10145 - Fix InstructionStream>>nextPc: #10044 https://github.com/pharo-project/pharo/pull/10044 - [P10] 10147-Fix-invalid-non-Boolean-return-when-CPU-watcher-is-enabled-For-P9--P10 #10149 https://github.com/pharo-project/pharo/pull/10149 Features ======= - Provide autofix rule to have no unreferenced ivars left #10126 https://github.com/pharo-project/pharo/pull/10126 - enabling-debug-window-in-windows-P10 #10130 https://github.com/pharo-project/pharo/pull/10130 - Provide Autofix for ReProperMethodProtocolNameRule #10140 https://github.com/pharo-project/pharo/pull/10140 Speed ====== - 10113-speedup-isReferenced-for-ClassVariables-from-a-Pool #10151 https://github.com/pharo-project/pharo/pull/10151 Cleanup ======= - Cleanup-theNonMetaParentName #10118 https://github.com/pharo-project/pharo/pull/10118 - Cleanup package Refactoring-Changes #10142 https://github.com/pharo-project/pharo/pull/10142 - Improve naming in ProtocolConventionTest #10132 https://github.com/pharo-project/pharo/pull/10132 - Cleanup-defaultTimeLimit #10153 https://github.com/pharo-project/pharo/pull/10153 - clean-dirty-packages-from-repo #10154 https://github.com/pharo-project/pharo/pull/10154 - Debugger infrastructure improvement and cleaning #10133 https://github.com/pharo-project/pharo/pull/10133 - Protocol for all class side methods #reset changed to initialization #9999 https://github.com/pharo-project/pharo/pull/9999 - Refactoring2-Cleanup-parentSuchAs #10158 https://github.com/pharo-project/pharo/pull/10158 - Ring-Cleanup-theNonMetaClass #10161 https://github.com/pharo-project/pharo/pull/10161 - 10065-Cleanup-ClassBuilder-remove-uses #10160 https://github.com/pharo-project/pharo/pull/10160

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Something weird in VirtualMachine>>#maxExternalSemaphores:
by Sven Van Caekenberghe Oct. 13, 2021

Oct. 13, 2021

Hi, The ExternalSemaphoreTable is an important resource since it holds 3 Semaphores per Socket (network connection). The size of ExternalSemaphoreTable determines how many such resources can be used concurrently. VM parameter 49 holds this limit, it is accessed by VirtualMachine>>#maxExternalSemaphores. The default for Pharo 9 seems to be 256 currently. There is a method VirtualMachine>>#maxExternalSemaphoresSilently: that can be used to set this limit higher. This seems to work. Now, there are some limitations here: the number must be a power of 2, higher that the one set before and lower than 64K. BTW the number of file descriptors for files and sockets is also limited by the OS for its processes. Also, while growing the table, the Semaphores become unavailable to the VM for a very short period of time, so they could miss signals, leading to IO issues. For this reason, it seems that the design goal was to not allow this to grow during normal use, only during startup or upfront configuration. Now comes the weird thing: the implementation/code of VirtualMachine>>#maxExternalSemaphores: This is the method called when the current table is too small and when it wants to grow larger than the current VirtualMachine>>#maxExternalSemaphores. The implementation calls #maxExternalSemaphoresSilently: in a forked thread, after signalling a SystemNotification with a full explanation. But why should this be forked in the first place ? Then in the main thread, it signals an error ! Presumably because the design goals mentioned before. These two actions are in conflict. All this is probably the result of well meant evolution and refactoring, but it is quite confusing. My first idea would be: let the caller raise the error and don't try raising the limit, remove the current implementation and replace it by what is now #maxExternalSemaphoresSilently: What do you think ? Sven

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Bloc and Spec2
by o lu Oct. 12, 2021

Oct. 12, 2021

What is the difference between Bloc and Spec2? Sent with [ProtonMail](https://protonmail.com/) Secure Email.

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[Pharo 8.0] Build #1146: Fix invalid (non-Boolean) return when CPU watcher is enabled
by ci-pharo-ci-jenkins2＠inria.fr Oct. 12, 2021

Oct. 12, 2021

There is a new Pharo build available! The status of the build #1146 was: FAILURE. The Pull Request #10134 was integrated: "Fix invalid (non-Boolean) return when CPU watcher is enabled" Pull request url: https://github.com/pharo-project/pharo/pull/10134 Issue Url: https://github.com/pharo-project/pharo/issues/Pharo8.0 Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

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This week (40/2021) on the Pharo Issue Tracker MD
by Marcus Denker Oct. 11, 2021

Oct. 11, 2021

We merged 23 PRs and fixed 19 Issue Tracker entries. Pharo9 ====== - Backport #10111: isReferenced-is-not-working-for-PoolVariables #10128 https://github.com/pharo-project/pharo/pull/10128 - 10123-Failing-test-Pharo9-ReleaseTesttestWorldMenuHasHelpForAllEntries #10127 https://github.com/pharo-project/pharo/pull/10127 - 10121-backport-Pharo9-Fix-failing-tests-in-CI-ZnHTTPSTesttestGForceInria #10122 https://github.com/pharo-project/pharo/pull/10122 - Fixes #10037. Now it only register world menu entries if the class "marked with praâ¦ #10055 https://github.com/pharo-project/pharo/pull/10055 - 9927-Check-Pharo9-Defining-variables-in-the-debugger-DNU-isForScripting-9925 #10120 https://github.com/pharo-project/pharo/pull/10120 - 10116-Backport-Pharo9-fixing-fuel-platform-dependency-10109 #10119 https://github.com/pharo-project/pharo/pull/10119 Fixes ===== - 10110-isReferenced-is-not-working-for-PoolVariables #10111 https://github.com/pharo-project/pharo/pull/10111 - Added two missing methods: tfPointerAddress https://github.com/pharo-project/pharo/pull/10099 - fixing-fuel-platform-dependency #10109 https://github.com/pharo-project/pharo/pull/10109 - 10067-CDClassDefinitionParserparseSelectorPartwithArgument-misses-subclass-definition-symbols #10092 https://github.com/pharo-project/pharo/pull/10092 - Fix failing tests in CI: ZnHTTPSTest>>testGForceInria #10091 https://github.com/pharo-project/pharo/pull/10091 Cleanups ========= - Cleanup-Unused-gtInspector-Rules #10112 https://github.com/pharo-project/pharo/pull/10112 - 10078-To-check-CompiledMethodlocalReadsSelf-does-isFFIMethod-check #10086 https://github.com/pharo-project/pharo/pull/10086 - ClassParser: Small Cleanup and Test for CompiledMethod #10097 https://github.com/pharo-project/pharo/pull/10097 - Deprecation-Rewrites-Ring #10115 https://github.com/pharo-project/pharo/pull/10115 - 10025-ObjectLayout-classlayoutForType-should-be-moved-to-the-Monticello-package #10087 https://github.com/pharo-project/pharo/pull/10087 - Cleanup Changeset class #10103 https://github.com/pharo-project/pharo/pull/10103 - Small cleanups: ByteString #10101 https://github.com/pharo-project/pharo/pull/10101 - Cleanup Color class #10105 https://github.com/pharo-project/pharo/pull/10105 - Deprecate #beginsWithEmpty:caseSensitive. Users should use beginsWithâ¦ #10016 https://github.com/pharo-project/pharo/pull/10016 - Fix #9907: improes DoesNotUnderstand exception's messageText #9982 https://github.com/pharo-project/pharo/pull/9982 - Use Jenkins git plugin #7141 https://github.com/pharo-project/pharo/pull/7141 - Small cleanups - AbstractWorldRenderer hierarchy #10082 https://github.com/pharo-project/pharo/pull/10082

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Ephemeron Status?
by sean＠clipperadams.com Oct. 10, 2021

Oct. 10, 2021

What is the status of ephemerons/weakly held objects? Is this fully working or are there still limitations/gotchas? I have lost track

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possible dates for Pharo Days 2022 :)
by stephane ducasse Oct. 7, 2021

Oct. 7, 2021

Hello guys We are super excited because we want to organise PharoDays at Lille We are checking some possible dates and we would like to know your point of view. right now we were thinking that 3/4 or 10/11 march would be good. So let us know. S

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This week (39/2021) on the Pharo Issue Tracker MD
by Marcus Denker Oct. 1, 2021

Oct. 1, 2021

We merged 21 Pull Requests and closed 20 issues this week: Fixes ===== - Add test for ZnBufferedReadStream>>setToEnd #10020 https://github.com/pharo-project/pharo/pull/10020 - Putting back the expectedFailure to test of write barrier #10057 https://github.com/pharo-project/pharo/pull/10057 - 10050-Failing-in-CI-CompiledMethodTrailerTesttestEmbeddingCompressedSourceCode #10058 https://github.com/pharo-project/pharo/pull/10058 - Fixing deprecation of currentPlatformName, it is the OS name #10056 https://github.com/pharo-project/pharo/pull/10056 - 10021 - Fixing the export of Monticello. #10038 https://github.com/pharo-project/pharo/pull/10038 - Fix #10026: Cannot use Iceberg - Pharo 10 Windows 64bits FFI #10028 https://github.com/pharo-project/pharo/pull/10028 Features ======== - Fixes #10042 enhance help system to be microdown based #10048 https://github.com/pharo-project/pharo/pull/10048 Cleanup ======= 10073-Cleanup-class-parser-support-for-slots-in-old-style-class-def-not-needed #10074 https://github.com/pharo-project/pharo/pull/10074 Small cleanups - Breakpoint #10084 https://github.com/pharo-project/pharo/pull/10084 Small cleanups AsyncFile #10072 https://github.com/pharo-project/pharo/pull/10072 Small cleanups in Balloon #10070 https://github.com/pharo-project/pharo/pull/10070 - Keep isQuick checks to the single place it matters #10040 https://github.com/pharo-project/pharo/pull/10040 - Integrate Roassal3 v0.9.9c #10064 https://github.com/pharo-project/pharo/pull/10064 - 9971 cleanup ring deprecate the meta class the non meta class base class #10045 https://github.com/pharo-project/pharo/pull/10045 - Fixed #9964. Refactored the hardcoded Ring method #kindOfSubclass using dispatch and moved it to the superclass #10039 https://github.com/pharo-project/pharo/pull/10039 - Small cleanup of useless pragmas #10047 https://github.com/pharo-project/pharo/pull/10047 Refactoring Engine ================== - Migrated RBRealizeClassRefactoring #10034 https://github.com/pharo-project/pharo/pull/10034 - Migrating RBRemoveHierarchyMethodRefactoring to RBRemoveHierarchyMethâ¦ #10032 https://github.com/pharo-project/pharo/pull/10032 Documentation ============= - Markdown documentation for regex #10049 https://github.com/pharo-project/pharo/pull/10049 - Fix #10029 - ProfStef P9/10 updates #10030 https://github.com/pharo-project/pharo/pull/10030 Pharo9 ====== - P9 backport - Fix #10029 - ProfStef P9/10 updates #10031 https://github.com/pharo-project/pharo/pull/10031

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in the quest of cutOn:
by stephane ducasse Sept. 29, 2021

Sept. 29, 2021

'abcDef' splitOn: [ :c | c isUppercase ] >>> âabcâ âefâ but I need 'abcDef' splitOn: [ :c | c isUppercase ] >>> âabcâ âDefâ :(

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