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Add {continue, Term} and handle_continue/2 to gen_server
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If the gen_server process needs to perform an action immediately
after initialization or to break the execution of a callback into
multiple steps, it can return {continue, term()} in place of the
time-out or hibernation value, which will immediately invoke the
handle_continue/2 callback with the given term.
This provides a more accessible approach to after initialization
compared to proc_lib+enter_loop that is also guaranteed to be
safe.
It also allows callbacks that need to do lengthy or stateful work
to checkpoint the state throughout multiple iterations. This can
be useful, for example, when implementing behaviours on top of
gen_server.
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* maint-20:
Updated OTP version
Update release notes
Update version numbers
erts: Fix bug in quick alloc
Fix old length usage in string
stdlib: Fix bug in proc_lib
Support arbitrary crash report in proc_lib.
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See also ERL-402, https://bugs.erlang.org/browse/ERL-402.
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This allows the use of ~ts/~tp/~tw in the formatting fun to
sys:handle_debug/4.
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This reverts commit eaf8ca41dfa4850437ad270d3897399c9358ced0.
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Return error tuple on unicode normalization functions
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Prior to this patch, the normalization functions in the
unicode module would raise a function clause error for
non-utf8 binaries.
This patch changes it so it returns {error, SoFar, Invalid}
as characters_to_binary and characters_to_list does in
the unicode module.
Note string:next_codepoint/1 and string:next_grapheme had
to be changed accordingly and also return an error tuple.
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* raimo/gen_statem-dev:
Fix documentation details
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Add option hibernate_after to gen_server, gen_statem and gen_event.
Also added to the deprecated gen_fsm behaviour.
OTP14405
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* sverker/ets-select-replace-const:
stdlib: Add examples for ets:select_replace docs
erts: Fix ets:select_replace with {const, NewTuple}
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This reverts commit dc57404252c47520f352834ad9be45ad684f96c9.
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It was done because "hibernate_after" option already used in ssl for the same reason.
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gen_event process's.
There is realized gen_server, gen_fsm, gen_event automatic hibernation functionality.
Added unit tests for realized functionality.
Added documentation for auto_hibernate_timeout option.
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* ingela/gen_fsm-doc-fix:
stdlib: Adhere to DTD
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OTP-14531 Generic time-outs in gen_statem
Conflicts:
lib/stdlib/test/erl_internal_SUITE.erl
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* hasse/stdlib/fix_qlc_bug/OTP-14296:
stdlib: Fix a test in sofs_SUITE
debugger: Improve handling of pids, ports, and refs
stdlib: Improve handling of pids, ports, and refs in qlc
stdlib: Improve the Erlang shell's handling of references
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* hasse/unicode_atoms/OTP-14285:
stdlib: Add Unicode modifier t to control sequence a
stdlib: Add Unicode modifier t to control sequences w and W
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* ingela/deprecate/gen_fsm/OTP-14183:
stdlib: Deprecate gen_fsm
Conflicts:
lib/stdlib/doc/src/gen_fsm.xml
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As of Erlang/OTP 20.0, the type of ETS tables, ets:tid(), is a
reference(). A request was put forward that the Erlang shell should be
able to handle references in its input.
This commit introduces an extended parser in module lib. It can parse
pids, ports, references, and external funs under the condition that
they can be created in the running system. The parser is meant to be
used internally in Erlang/OTP. The alternative, to extend erl_scan and
erl_parse, was deemed inferior as it would require the abstract format
be able to represent pids, ports, references, and funs, which would be
confusing as they are not expressions as such, but data types.
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* siri/unicode-atoms:
Document that app names and nodes names are restricted to latin-1
Conflicts:
lib/stdlib/doc/src/unicode_usage.xml
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Introduce new "Dbgi" chunk
OTP-14369
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The new Dbgi chunk returns data in the following format:
{debug_info_v1, Backend, Data}
This allows compilers to store the debug info in different
formats. In order to retrieve a particular format, for
instance, Erlang Abstract Format, one may invoke:
Backend:debug_info(erlang_v1, Module, Data, Opts)
Besides introducing the chunk above, this commit also:
* Changes beam_lib:chunk(Beam, [:abstract_code]) to
read from the new Dbgi chunk while keeping backwards
compatibility with old .beams
* Adds the {debug_info, {Backend, Data}} option to
compile:file/2 and friends that are stored in the
Dbgi chunk. This allows the debug info encryption
mechanism to work across compilers
* Improves dialyzer to work directly on Core Erlang,
allowing languages that do not have the Erlang
Abstract Format to be dialyzer as long as they emit
the new chunk and their backend implementation is
available
Backwards compatibility is kept across the board except
for those calling beam_lib:chunk(Beam, ["Abst"]), as the
old chunk is no longer available. Note however the "Abst"
chunk has always been optional.
Future OTP versions may remove parsing the "Abst" chunk
altogether from beam_lib once Erlang 19 and earlier is no
longer supported.
The current Dialyzer implementation still supports earlier
.beam files and such may also be removed in future versions.
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* maint:
stdlib: Fix documentation on sets’ representation
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The Unicode translation modifier 't' is added to the io:fread/2,3
control sequence 'a'.
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As of the introduction of Unicode characters in atoms, the control
sequences 'w' and 'W' can return non-Latin-1 characters, unless some
measure is taken.
This commit makes sure that '~w' and '~W' always return Latin-1
characters, or bytes, which can be output to ports or written to raw
files.
The Unicode translation modifier 't' is needed to return non-Latin-1
characters.
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* dgud/stdlib/unicode-string/OTP-10289:
Handle chardata in string:to_float and string:to_list
New unicode aware string module that works with unicode:chardata()
Add nf(k)d, nf(k)c conversion functions to unicode module
Reorder code and whitespace fixes
Add unicode_util
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Works with unicode:chardata() as input as was decided on OTP board
meeting as response to EEP-35 a long time ago.
Works on graphemes clusters as base, with a few exceptions, does not
handle classic (nor nfd'ified) Hangul nor the extended grapheme
clusters such as the prepend class. That would make handling binaries
as input/output very slow.
List input => list output, binary input => binary output and
mixed input => mixed output for all find/split functions.
So that results can be post-processed without the need to invoke
unicode:characters_to_list|binary for intermediate data.
pad functions return lists of unicode:chardata() for performance.
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