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The previous implementation of supervisor:get_callback_module/1
used sys:get_status/1 to get the supervisor inner state and
retrieve the callback module. Such implementation forbids any
other supervisor implementation that has an internal state
different than the #state{} record in supervisor.erl.
This patch allows supervisors to return the callback module
as part of the sys:get_status/1 data, no longer coupling the
callback module implementation with the inner #state{} record.
Notice we have kept the clause matching the previous
sys:get_status/1 reply for backwards compatibility purposes.
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* bjorn/compiler/modernize-tests:
Remove ?line macros
Replace use of lists:keysearch/3 with lists:keyfind/3
Eliminate use of doc and suite clauses
Replace ?t with test_server
Replace use of test_server:format/2 with io:format/2
Eliminate use of test_server:fail/0,1
Eliminate use of ?config() macro
Modernize use of timetraps
Eliminate useless helper functions
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* josevalim/debugger-path/OTP-13375:
Use compile source info in debugger
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* bjorn/compiler/bit-syntax/OTP-13374:
Produce warnings for binary patterns that will never match
v3_core: Include line number annotations in binary patterns
sys_core_fold: Introduce var_list/2
sys_core_fold: Optimize clause/4
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* bjorn/multiple-load/OTP-13111:
code: Add functions that can load multiple modules
Refactor post_beam_load handling
Simplify and robustify code_server:all_loaded/1
Update preloaded modules
Add erl_prim_loader:get_modules/3
Add has_prepared_code_on_load/1 BIF
Allow erlang:finish_loading/1 to load more than one module
beam_load.c: Add a function to check for an on_load function
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Conflicts:
erts/emulator/beam/erl_alloc.types
erts/emulator/beam/erl_bif_info.c
erts/emulator/beam/erl_process.c
erts/preloaded/ebin/erts_internal.beam
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Those clause are obsolete and never used by common_test.
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The macro ?t is deprecated. Replace its use with 'test_server'.
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There is no practial difference.
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?config is ugly and not recommended. Use proplists:get_value/2
instead.
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* siri/remove-overload/OTP-13184:
Remove module 'overload' from SASL
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Change scheduler responsiveness to 'check_schedulers'.
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Add functions to 'code' to allow loading of multiple modules
at once.
code:atomic_load(Modules) will load all modules at once, or fail
having loaded none of them. Since we cannot guarantee the atomicity if
there are modules with -on_load functions, the list of modules must
not contain any modules with an -on_load function.
Also, to make it possible to put an application into an inactive state
for as short time as possible, also add code:prepare_loading/1 and
code:finish_loading/1. They are used like this:
{ok,Prepared} = code:prepare_loading(Modules)
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ok = code:finish_loading(Prepared)
code:ensure_modules_loaded/1 is useful as a pure optimization to
ensure that modules that will be needed soon have indeed been
loaded. It will not reload modules that have already been loaded and
it *will* accept modules that have an on_load function. Therefore, it
does not make sense to give any atomicity guarantees.
I did consider overloading the existing code:ensure_loaded/1
function, but rejected it because the return value is very
different. Having different forms of return values depending
on the types of arguments is confusing.
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After loading a module without native code, it is still necessary
to call hipe_unified_loader:post_beam_load() to ensure that any
native calls to the module is done to the newly loaded module
(and not to a previous version of the module in native code).
Unfortunately, hipe_unified_loader:post_beam_load() can be slow
and most of the time it doesn't do anything because no previous
native code was loaded. Therefore, ad2962278f added a kludge using
the process dictionary to avoid calling post_beam_load() if no
native code at all has been loaded.
Remove the kludge by keeping track exactly of which modules that
have native code in the existing ets table. Also generalize
post_beam_load() to handle severals modules at once, since we
will soon need that functionality.
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The main ets table kept by code_server contains several pieces
of information. Therefore, code_server:all_loaded/1 need to
filter the information in the table.
code_server:all_loaded/1 can be simplified if we use
ets:select/2. Currently, the filtering is done by filtering
away unwanted stuff ({sticky_dir,Mod} tuples). It is more
robust to filter on the stuff that we want to keep
({Mod,Path} tuples, where Mod is an atom) in case that we'll
add more auxiliary records to the table later.
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When we are going to implement functions that can load many modules
at once, we don't the erl_prim_loader server to become a bottleneck.
Therefore, we need erl_prim_loader:get_modules/3 that can read many
BEAM files in parallel.
Note that we will not bother making reading from archive files
or using the inet loader efficient. That can be done later if it
turns out to be important.
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Either rely on the default 30 minutes timetrap, or set the timeout
using the supported methods in common_test.
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* legoscia/fix-ssl-example/PR-976/OTP-13363:
ssl: Modernize utility function
Fix ssl example
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* bernardd/gen_tcp_export_socket:
Export gen_tcp:socket() type
OTP-13380
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* kostis/hipe-icode-cleanup:
Fix dialyzer warning and some code refactoring
OTP-13379
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* legoscia/crl-check-without-dp:
Be suspicious of certificates without CRL DPs
Refactor ssl_crl_SUITE: extract crl_verify_error/6
OTP-13378
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* legoscia/critical-extension-verify-none:
ssl: with verify_none, accept critical extensions
OTP-13377
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* benwilson512/better-maps-with:
Improved maps:with/2 and maps:without/2 algorithm
OTP-13376
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Binary matching can be confusing. For example:
1> <<-1>> = <<-1>>.
** exception error: no match of right hand side value <<"ÿ">>
2>
When constructing binaries, the value will be masked to fit in
the binary segment. But no such masking happens when matching
binaries.
One solution that we considered was to do the same masking when
matching. We have rejected that solution for several reasons:
* Masking in construction is highly controversial and by some
people considered a bad design decision.
* While masking of unsigned numbers can be understood, masking of
signed numbers it not easy to understand.
* Then there is the question of backward compatibility. Adding
masking to matching would mean that clauses that did not match
earlier would start to match. That means that code that has
never been tested will be executed. Code that has not been
tested will usually not work.
Therefore, we have decided to warn for binary patterns that cannot
possibly match.
While we are it, we will also warn for the following example where
size for a binary segment is invalid:
bad_size(Bin) ->
BadSize = bad_size,
<<42:BadSize>> = Bin.
That example would crash the HiPE compiler because the BEAM compiler
would generate a bs_get_integer2 instruction with an invalid size
field. We can avoid that crash if sys_core_fold not only warns for bad
binary pattern, but also removes the clauses that will not match.
Reported-by: http://bugs.erlang.org/browse/ERL-44
Reported-by: Kostis Sagonas
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Conflicts:
lib/eldap/src/eldap.erl
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andor_SUITE:check/2 function can be replaced with pattern matching.
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* maint:
[erl_interface] Correct documentation
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Fix mistakes found by 'xmllint'.
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Use application:ensure_all_started/2 instead of hard coding dependencies
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