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* bjorn/kernel/cuddle-with-tests:
Clean up rpc_SUITE:call_benchmark/1
Eliminate use of erlang:now/0 for generating random numbers
Eliminate use of erlang:now/0 for measuring time
Eliminate use of erlang:now/0 for generating unique node names
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The call_benchmark/1 test case is supposed to return a comment
about the number of RPC calls per second, but the return value
from the function that produces the comment (do_call_benchmark/4)
is ignored. The test case is essentially useless except as a
smoke test.
Simplify the test case and correct the showing of the number of
RPC calls per second, as well as eliminate the use of erlang:now/0.
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* egil/cuddle-tests:
erts: Remove remaining ?line macros in trace_meta_SUITE
erts: Relax trace_meta_SUITE:on_and_off_test/1
erts: Remove ?line macro in trace_meta_SUITE:on_and_off_test/1
kernel: Remove remaining ?line macros in gen_tcp_misc_SUITE
kernel: Relax gen_tcp_misc_SUITE don't wait for timeout
kernel: Relax test gen_tcp_misc_SUITE:wrapping_oct/1
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Also, fixup some confusing indentations.
This commit only contains whitespace changes and removal of ?line macros.
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OTP-12797
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* weiss/propagate-setopt-error:
Don't throw exception on prim_inet:setopt/3 error
OTP-12798
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It's unnecessary to wait for timeout in some of these testcases.
The tests should not check for stray messages while waiting for timeout,
that is mostly covered by message order and pattern matching anyway.
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* richcarl/warnings-by-default/OTP-12781:
stdlib: Use warning channel in test qlc_SUITE:otp_6964/1
stdlib: Fix testcase for qlc_SUITE
kernel: Fix code_SUITE with respect to new logger default
Map error logger warnings to warning messages by default
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Use erlang:unique_integer([positive]) when generating unique node
names.
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* nybek/limit_leading_zeros_in_ipv6_addresses:
Fix parsing of IPv6 addresses to limit leading zeros
OTP-12773
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* bjorn/kernel/code-loading:
code: Eliminate dialyzer warnings for unmatched returns
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* rickard/user_drv_q_bug/OTP-12239:
Fix usage of io-request queue
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Also fix and document the broken +We option.
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* richcarl/ac_tab-concurrency:
Use read_concurrency for application environment
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We want to have the core applications of Erlang/OTP free from any
dialyzer warnings. Eliminate the warnings for unmatched returns
that were introduced in 7309ff4c3832.
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The current implementations of inet:parse_ipv6_address/1 and
inet:parse_ipv6strict_address/1 permit address strings which have an
unlimited number of leading zeros. Addresses such as:
"0000000000000000000000000000000ffff::"
"::00000000000000000000000000000000000000000000000000000000"
"::0000000f435:1"
If we are using this facility to validate string representations of
IPv6 addresses, then we would end up validating addresses which are
non-conformant (with respect to RFC 4291 section 2.2) and potentially
dangerous.
This patch ensures that each segment of an IPv6 address has a maximum
of 4 hex digits.
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* richcarl/md5-fixes:
code: Correct type spec for code:make_stub_module/3
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This reverts commit 4c4d7fa40e5fb59854724ce74b8aa3546525cb90.
This pr is causing some test failures that were missed at first.
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* richcarl/warnings-by-default:
Map error logger warnings to warning messages by default
OTP-12755
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* MSch/patch-1:
Remove erlang:display/1 calls
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Also fix and document the broken +We option.
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e47490f83e561a changed the size of Info argument tuple (third argument)
for code:make_stub_module/3 from 2 to 3, but did not update the
spec in code.erl.
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This reverts commit e09dd66dc4d89c62ddfd8c19791f9678d5d787c6.
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If the driver queue is empty, or the user is requesting a 'read'
shutdown, then the shutdown() syscall is performed synchronously, as
per the old version of shutdown/2.
However, if the user is requesting a 'write' or 'read_write' shutdown,
and there is data in the driver queue for the socket, then the
shutdown() syscall is delayed and handled asynchronously when the
driver queue is written out.
This version of shutdown solves a number of issues with the old
version. The two main solutions it offers are:
* It doesn't block when the TCP peer is idle or slow. This is the
expected behaviour when shutdown() is called: the caller needs
to be able to continue reading from the socket, not be prevented
from doing so.
* It doesn't truncate the output. The current version of
gen_tcp:shutdown/2 will truncate any outbound data in the driver
queue after about 10 seconds if the TCP peer is idle of slow. Worse
yet, it doesn't even inform anyone that the data has been
truncated: 'ok' is returned to the caller; and a FIN rather than
an RST is sent to the TCP peer.
For a detailed description of all the problems with the old version
of shutdown, please see the EEP Light that was written to justify
this patch.
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Previously, the emulator would generate a whole string
with values and call the error_logger passing "~s~n".
This commit changes it to a format string containing ~p
with the respective values as arguments.
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* richcarl/md5-fixes:
Set module_info md5 for native modules properly
Add module_info entry for native code
Gracefully handle empty md5 field in module_info
Remove 'imports' key from spec of get_module_info()
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7309ff4c38325 introduced a mismatch between
load_native_code_for_all_loaded/0 and its spec. We could just delete
spec, but it is cleaner to ensure that the function always returns
'ok'.
Noticed-by: Tuncer Ayaz
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Use the md5 of the native code chunk instead of the Beam code md5.
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* bjorn/kernel/code-loading:
kernel application: Start code server first
code: Reduce overhead of native code checking for loaded modules
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When the code server has started, it will read the .beam files
for all loaded modules to see whether they contain native code
that should be loaded. To make that as fast as possible when
we have no native code, start the code server as early as possible
to minimize the number .beam files that must be read from disk.
The code server does not use the 'file' module, so it is OK to
start the code server before starting the file_server process.
On my computer, the time for checking the loaded modules for
native code is reduced from roughly 2 ms to 1.5 ms.
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When the code server has been started, the function
load_native_code_for_all_loaded/0 will check whether the .beam
files for all loaded modules contain any native code. If there
is native code, it will be loaded.
If there is no native code, on my computer the check will take about
10 ms. That time can be reduced to about 2 ms if we replace the call
to code beam_lib:chunks/2 with a call to prim_file:read_file/1 to read
the file and a call to code:get_chunk/2 to check whether the chunk for
native code is present.
Furthermore, the entire check can be spawned off to a separate
process and done in parallel with OTP starting up.
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* peppe/jcl_mode_improvements:
Fix problem with unitialized edlin text buffer
Fix shell crash when in switch command mode
OTP-12673
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* egil/opt-instructions/OTP-12690:
erts: Specialize minus and plus instruction
erts: Add move2 specialization for common move patterns
erts: Specialize rem instruction for common case
erts: Specialize band instruction for common case
erts: Batch loads and stores for move_window
erts: Fix loader increment from minus instruction
erts: Add move window instruction
erts: Add instruction move3 for xy and xx
erts: Specialize compare instructions
kernel: Add instruction_count helper to erts_debug
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Also make it possible to copy text buffer from current group
process to the JCL mode
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The user_drv process can crash if ctrl-y is pressed when in switch command mode (ctrl-g).
This is due to switch mode using edlin to parse the input.
And edlin uses the process dictionary to store the kill_buffer.
However the kill_buffer is undefined if not initialized by edlin:init/0
which makes the user_drv process crash since edlin is calling list:reverse/2 with undefined.
Fix calles edlin:init/0 once before server_loop is entered.
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Let gen_tcp:controlling_process/2 and inet_sctp:connect/[45] propagate
prim_inet:setopt/3 errors instead of having them generate badmatch
exceptions.
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