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* rickard/doc-fix:
Fix doc build
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* rickard/ds-sched-suspend:
Improved scheduler suspend functionality
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* bjorn/kernel/modernize-tests:
Remove ?line macros
Fix comments
gen_tcp_misc_SUITE: Use unique node names
Eliminate use of the ?t macro
Eliminate use of doc and suite clauses
Replace use of test_server:capture*/0 with ct:capture*/0
Eliminate use test_server:format()
Eliminate use of test_server:sleep/1
Eliminate use of test_server:fail/0,1
Eliminate use of ?config() macro
Modernize timetraps
disk_log_SUITE: Remove vestiges of VxWorks support
Conflicts:
lib/kernel/test/code_SUITE.erl
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- The calling process is now suspended while synchronizing
scheduler suspends via erlang:system_flag(schedulers_online, _)
and erlang:system_flag(multi_scheduling, _), instead of blocking
the scheduler thread in the BIF call waiting for the operation
to synchronize. Besides releasing the scheduler for other work
(or immediate suspend) it also makes it possible to abort the
operation by killing the process.
- erlang:system_flag(schedulers_online, _) now only wait for normal
schedulers to complete before it returns. This since it may take
a very long time before all dirty schedulers suspends.
- erlang:system_flag(multi_scheduling, block_normal|unblock_normal)
which only operate on normal schedulers has been introduced. This
since there are use cases where suspend of dirty schedulers are
not of interest (hipe loader).
- erlang:system_flag(multi_scheduling, block) still blocks all
dirty schedulers as well as all normal schedulers except one since
it is hard to redefine what multi scheduling block means.
- The three operations:
- changing amount of schedulers online
- blocking/unblocking normal multi scheduling
- blocking/unblocking full multi scheduling
can now be done in parallel. This is important since otherwise
a full multi scheduling block would potentially delay the other
operations for a very long time.
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While we are it, also re-ident the files.
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Remove out-commented code. Make sure that comments that are not
at the end of a line starts with two '%' characters and not just
one. That will become important later when we'll remove all
?line macros and ask Emacs to re-indent the files.
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Use unique node names to ensure that one failed test case will
not cause other test cases to fail if a slave node was left.
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Those clause are obsolete and never used by common_test.
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Replace with io:format/2 or ct:pal/3.
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* bjorn/multiple-load/OTP-13111:
erl_prim_loader_SUITE: Add debug printout
Skip erl_prim_loader_SUITE:get_modules/1 when cover-compiled
multi_load_SUITE: Clarify failure reasons
multi_load_SUITE: Don't fail on non-HiPE systems
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?config is ugly and not recommended. Use proplists:get_value/2
instead.
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This bug was introduced by OTP-13388.
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* maint:
io_SUITE: Don't fail on fast computers with rough timers
Fix code_SUITE after test_server change
Set default value for crash_dump_dir
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* siri/crashdump-dir/OTP-13388:
Fix code_SUITE after test_server change
Set default value for crash_dump_dir
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* henrik/doc-fixes:
Fix typo in INSTALL.md
Update README.md
Fix typo in 'app' documentation
s/is/are
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code:which/1 will return 'cover_compiled' instead of a path. We
could work around that, but since erl_prim_loader is not
cover-compiled, it does not gain us anything.
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The failure reasons remained from a previous draft of the API.
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test_server:start_node does no longer add the test_server path to the
new node, since the needed code is present in the default path. This
caused two test cases in code_SUITE to fail.
code_SUITE:mult_lib_roots: Expected the test_server path to be first
in the code path. This check is removed.
code_SUITE:bad_erl_libs: Started a node with "-env ERL_LIBS ",
i.e. not giving any value to the ERL_LIBS variable. This test
succeeded by accident, since the combination with arguments set by
test_server_node.erl and by slave.erl caused the node start to work,
and no further checks were present in the test. This part of the test
case is now removed.
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* siri/appups-19.0:
Update appups in kernel, stdlib and sasl for OTP-19
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* sverk/master/halt-INT_MIN:
erts: Make erlang:halt() accept bignums as Status
erts: Change erl_exit into erts_exit
kernel: Remove calls to erl_exit
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OTP-13251
* sverk/halt-INT_MIN:
erts: Make erlang:halt() accept bignums as Status
erts: Change erl_exit into erts_exit
kernel: Remove calls to erl_exit
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* msantos/epmd-IPv6-node-reg2/PR-864/OTP-13364:
epmd: support IPv6 node registration
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* siri/appups-18.3:
Update appups in kernel, stdlib and sasl for OTP-18.3
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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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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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* bernardd/gen_tcp_export_socket:
Export gen_tcp:socket() type
OTP-13380
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from debug and example code
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