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While we are it, also re-ident the files.
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We want to re-ident the source files after having taken out
all ?line macros. When re-indenting using Emacs, it's important
that comments that should be at the beginning of a line (or
follow the indentation of statements around it) must start with
"%%".
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The return values for lists:prefix/2 and lists:member/2 were
ignored.
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Note that the sleeping time in ct:sleep/1 will be scaled if
the test is run with (for example) cover. When it is important
that the sleep time is not adjusted, use timer:sleep/1.
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There is no practial difference.
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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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Conflicts:
lib/common_test/test/Makefile
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* siri/test-ct_release_test/OTP-13390:
Remove upgrade tests from stdlib_SUITE
Add test of ct_release_test
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The test cases minor_upgrade and major_upgrade used
ct_release_test. The point of the tests in stdlib was mainly to test
ct_release_test. ct_release_test produces a 'from-release' based on an
old version of the application under test (in this case stdlib) and
new versions of all other applications. But since it is not always a
good idea to load an old version of stdlib into a new emulator
(e.g. in the OTP-19.0 emulator), these tests are removed.
Instead new tests are added for ct_release_test in common_test.
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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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* bjorn/cuddle-with-tests:
io_SUITE: Don't fail on fast computers with rough timers
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* sverk/bad_printable_range:
stdlib: Fix io_SUITE:bad_printable_range for windows
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Since Windows 8 we are not allowed (in non elevated mode) to
write to hklm.
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avoid os:cmd as it treats stderr different on windows.
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On a computer which is fast, but with timers with low resolution,
the measured time for an empty queue could be zero, which could
cause the test case to fail.
Add a calibration function to scale up the amount the amount of
work so that the measured time will not be lower than 50 ms.
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Removing events from the internal queues is not necessary with
the choosen semantics of the event queue vs. hibernate.
In an early implementation it was possible by combining
hibernate with e.g. postpone to get an event in the queue
that you would not see before processing the postponed event,
and therefore should you decide to cancel a timer it was
essential to be able to remove that unseen event from the queue.
With the choosen semantics you will have to postpone or generate
an event for it to be in the event queue, and if you e.g. postpone
a timeout event and then cancel the timer it is your mistake.
You have seen the event and should know better than to try to
cancel the timer.
So, the actions: remove_event, cancel_timer, demonitor and unlink
are now removed.
There have also been some cleanup of the timer handling code.
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Type check atom state as early as possible
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Correct typo reported by Luïc Hoguin.
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StateName/4 -> StateName/3
handle_event/5 -> handle_event/4
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Cleanup some error handling
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* bjorn/stdlib/function-macro/OTP-13059:
Implement ?FUNCTION_NAME and ?FUNCTION_ARITY macros
epp: Refactor expand_macros()
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* bjorn/remove-test_server/OTP-12705:
Remove test_server as a standalone application
Erlang mode for Emacs: Include ct.hrl instead test_server.hrl
Remove out-commented references to the test_server applications
Makefiles: Remove test_server from include path and code path
Eliminate use of test_server.hrl and test_server_line.hrl
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For a long time, users have asked for one or more macros that would
return the name and arity of the current function.
We could define a single ?FUNCTION macro that would return
a {Name,Arity} tuple. However, to access just the name or
just the arity for the function, element/2 must be used.
That would limit its usefulness, because element/2 is not
allowed in all contexts.
Therefore, it seems that we will need two macros.
?FUNCTION_NAME that expands to the name of the current function
and ?FUNCTION_ARITY that expands to arity of the current
function.
Converting the function name to a string can be done like this:
f() ->
atom_to_list(?FUNCTION_NAME) ++ "/" ++
integer_to_list(?FUNCTION_ARITY).
f/0 will return "f/0". The BEAM compiler will evaluate the
entire expression at compile-time, so there will not be
any run-time penalty for the function calls.
The implementation is non-trivial because the preprocessor is
run before the parser.
One way to implement the macros would be to replace them with some
placeholder and then let the parser or possibly a later pass replace
the placeholder with correct value. That could potentially slow
down the compiler and cause incompatibilities for parse transforms.
Another way is to let the preprocessor do the whole job. That means
that the preprocessor will have to scan the function head to find
out the name and arity. The scanning of the function head can be
delayed until the first occurrence of a ?FUNCTION_NAME or
?FUNCTION_ARITY.
I have chosen the second way because it seems less likely to cause
weird compatibility problems.
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