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2019-05-06Merge branch 'raimo/stdlib/gen_statem-sync-timer-cancel/OTP-15295' into maint-21Erlang/OTP
* raimo/stdlib/gen_statem-sync-timer-cancel/OTP-15295: Rewrite to use synchronous timer cancel
2019-04-17Rewrite to use synchronous timer cancelRaimo Niskanen
2019-03-29Prepare releaseErlang/OTP
2019-03-28erl_tar: Use read_ahead when reading compressed tar filesJohn Högberg
Jumping around in a compressed file is nowhere near as cheap as for uncompressed files, as it requires reading and decompressing up until the desired position. Using read_ahead will improve performance slightly.
2019-03-11Prepare releaseErlang/OTP
2019-03-07Merge branch 'sverker/ets-no-mbuf-trapping/OTP-15660'Sverker Eriksson
into sverker/maint/ets-no-mbuf-trapping/OTP-15660
2019-03-07erts: Remove ets traversal yielding if heap fragmentSverker Eriksson
Many heap fragments do no longer make the GC slow. Even worse, we are not guaranteed that a yield will provoke a GC removing the fragments, which might lead to a one-yield-per-bucket scenario if the heap fragment(s) still remains after each yield.
2019-03-05stdlib: Correct and optimize pretty printing of stringsHans Bolinder
Avoid traversing all of the list/string when only part of it will be used. An explicit check that the list is flat is needed since string:slice() accepts deep lists and more.
2019-03-04Merge branch 'hasse/stdlib/optimize_calendar_rfc3339/OTP-15630' into maintHans Bolinder
* hasse/stdlib/optimize_calendar_rfc3339/OTP-15630: stdlib: Optimize calendar:system_time_to_rfc3339()
2019-02-22Clarify the atomic guarantees for ets:update_counter()Björn Gustavsson
The phrasing "no process can access the ETS table in the middle of the operation" implies that the entire table is looked during the operation, which is not true if `write_concurrency` is enabled.
2019-02-20stdlib: Optimize calendar:system_time_to_rfc3339()Hans Bolinder
Not using io_lib for formatting makes the conversion several times faster.
2019-02-18stdlib: Fix a bug in the Erlang Pretty PrinterHans Bolinder
Long atom names in combination with <c><<>></c> could cause a crash.
2019-02-18Merge branch 'maint-21' into maintRaimo Niskanen
* maint-21: Updated OTP version Prepare release
2019-02-18Merge branch 'hasse/stdlib/optimize_pretty_print/ERIERL-306/OTP-15573' into ↵Hans Bolinder
maint * hasse/stdlib/optimize_pretty_print/ERIERL-306/OTP-15573: Update primary bootstrap stdlib: Optimize formatted printing of terms
2019-02-15Merge PR-2139 from sverker/ets-doc-partially-bound-key/OTP-15545Sverker Eriksson
Add ETS docs about partially bound key traversal
2019-02-15Prepare releaseErlang/OTP
2019-02-14Merge pull request #2118 from kjellwinblad/fix_valgrind_problem_bignum OTP-15583Kjell Winblad
Fix bug in binary:encode_unsigned causing a read of uninitialized memory
2019-02-14stdlib: Optimize formatted printing of termsHans Bolinder
Try calling iolist_size() before calling string:length(). The reason is that calls to string:length/1 are slow when the argument is not a list of integers (or contains UNICODE).
2019-02-12Merge branch 'FNickRU/stdlib/optimize_calendar/PR-2121/OTP-15572' into maintHans Bolinder
* FNickRU/stdlib/optimize_calendar/PR-2121/OTP-15572: Optimize calendar:gregorian_days_to_date/1
2019-02-08stdlib: Add ETS docs about partially bound key traversalSverker Eriksson
2019-02-05ssl: Use specs to generate type documentationIngela Anderton Andin
2019-01-31Optimize calendar:gregorian_days_to_date/1Stanislav Mayorov
This patch improves the performance of calendar:gregorian_days_to_date/1 by changing the algorithm for finding the year to log-logarithmic. The old implementation has linear complexity, which makes function too slow for large values. For example: There is an API that allows you to create events for future dates. There are users of this API who, for some reasons, choose dates very far in the future. In such conditions, function works very slow. New implementation based on interpolation search, takes 1 or 2 iterations at most cases and free from such a flaw. A unit test was also developed to illustrate the speed of a function at large values.
2019-01-30Fix bug in binary:encode_unsigned causing a read of uninitialized memoryKjell Winblad
The bug could be seen by running the test that is added by this commit in a valgrind enabled emulator. Co-authored-by: John Högberg <[email protected]>
2019-01-24Merge PR-2103 from sverker/ets-iteration-doc/OTP-15545Sverker Eriksson
Clarify ETS docs about table iterations
2019-01-24stdlib: Clarify ets docs about table iterationsSverker Eriksson
2019-01-22Merge branch 'sverker/fix-since-clauses/OTP-15460' into maintSverker Eriksson
* sverker/fix-since-clauses/OTP-15460: Fix "since" for all multi clause functions
2019-01-16Merge pull request #2074 from gomoripeti/singleton_char_typeHans Bolinder
Fixes in erl_parse:abstract_type/0 type
2019-01-15Fix "since" for all multi clause functionsSverker Eriksson
This is the result of going through all .xml files with "clause_i" attributes and make sure their "since" versions are correct.
2019-01-15Fix sorting in lists.xmljfw7
`search/2` was sorted incorrectly.
2019-01-08Merge pull request #2022 from gomoripeti/ms_remote_call_errorSiri Hansen
Fix remote-call error in ms_transform
2018-12-28Fix erl_parse:af_constraint()Péter Gömöri
Add missing list wrapper.
2018-12-28Fix erl_parse:af_fun_type()Péter Gömöri
`af_function_type()` already contains the `{'type', anno(), 'fun', ...}` tuple so it does not have to be wrapped again.
2018-12-27Add literal character to erl_parse:abstract_type/0 typePéter Gömöri
This is allowed since 19.3 (commit 6d238032) and documented since commit 744fb920.
2018-12-14Merge branch 'lukas/stdlib/maps_iterator_docs' into maintLukas Larsson
2018-12-12Add empty 'since' attribute for old modules and functionsSverker Eriksson
2018-12-11Add "since" attributes in xml for new functions and modulesSverker Eriksson
introduced after OTP_R13B03.
2018-12-10Prepare releaseErlang/OTP
2018-12-10stdlib: Update maps:iterator docs to not show iteratorLukas Larsson
The example should not show the iterator as that is an internal value and if changed can confuse the reader of the documentation. See ERL-796
2018-12-03Merge branch 'dgud/stdlib/unicode-binary-bug/ERL-777/OTP-15428' into maintDan Gudmundsson
* dgud/stdlib/unicode-binary-bug/ERL-777/OTP-15428: unicode_util did not handle binary input data correctly
2018-11-29stdlib: Let calendar:system_time_to_rfc3339() keep fractionsHans Bolinder
RFC3339 mentions in paragraph 5.1 that if certain conditions are fulfilled, then sorting date and time strings results in a time-ordered sequence. One of the conditions is that the strings must have the same number of fractional second digits. This commits makes sure this is indeed the case.
2018-11-21Fix inadvertently suppressed warning for unused variableBjörn Gustavsson
An external fun could inadvertently suppress warnings for unused variables, such as in this example: bug() -> BugVar = foo(), if true -> fun m:f/1 end. There would be no warning that `BugVar` was unused. The bug was introduced in ff432e262e652, which was the commit that extended external funs to allow variables. https://bugs.erlang.org/browse/ERL-762
2018-11-20unicode_util did not handle binary input data correctlyDan Gudmundsson
gc_zwj sent binaries recursivly to gc_extend/3 which didn't handle can't handle them. ERL-777
2018-11-19Fix remote-call error in ms_transformPéter Gömöri
Before this patch the following call resulted in the below error ``` 1> dbg:fun2ms(fun(_) -> m:f() end). Error: Unknown error code {122,m,f} ``` Now it is properly formatted as ``` 1> dbg:fun2ms(fun(_) -> m:f() end). Error: fun containing the remote function call 'm:f/0' (called in body) cannot be translated into match_spec ```
2018-11-14Merge branch 'maint-18' into maintLukas Larsson
* maint-18: Updated OTP version Prepare release Optimize operator '--' and yield on large inputs Conflicts: OTP_VERSION erts/doc/src/notes.xml erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_lists.c erts/vsn.mk lib/stdlib/doc/src/notes.xml lib/stdlib/vsn.mk make/otp_version_tickets otp_versions.table
2018-11-09Prepare releaseErlang/OTP
2018-11-09Merge branch 'john/erts/OTP-18.3.4/minusminus_trapping/OTP-15371' into maint-18Erlang/OTP
* john/erts/OTP-18.3.4/minusminus_trapping/OTP-15371: Optimize operator '--' and yield on large inputs
2018-11-09Merge branch 'maint-20' into maintLukas Larsson
* maint-20: Updated OTP version Prepare release Optimize operator '--' and yield on large inputs Conflicts: OTP_VERSION erts/doc/src/notes.xml erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_lists.c erts/vsn.mk lib/ssl/doc/src/notes.xml lib/ssl/vsn.mk lib/stdlib/doc/src/notes.xml lib/stdlib/vsn.mk make/otp_version_tickets otp_versions.table
2018-11-05Prepare releaseErlang/OTP
2018-11-05Merge branch 'john/erts/OTP-20.3.8/minusminus_trapping/OTP-15371' into maint-20Erlang/OTP
* john/erts/OTP-20.3.8/minusminus_trapping/OTP-15371: Optimize operator '--' and yield on large inputs
2018-11-05Optimize operator '--' and yield on large inputsJohn Högberg
The removal set now uses a red-black tree instead of an array on large inputs, decreasing runtime complexity from `n*n` to `n*log(n)`. It will also exit early when there are no more items left in the removal set, drastically improving performance and memory use when the items to be removed are present near the head of the list. This got a lot more complicated than before as the overhead of always using a red-black tree was unacceptable when either of the inputs were small, but this compromise has okay-to-decent performance regardless of input size. Co-authored-by: Dmytro Lytovchenko <[email protected]>
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