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* rickard/monotonic-time-improvements/OTP-13222:
Introduce time management in native APIs
Introduce time warp safe replacement for safe_fixed option
Introduce time warp safe trace timestamp formats
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The specifications for functions that load code in the 'code'
module (e.g. code:load_file/1) have some problems:
* The specs claim that the functions can return {error,on_load}, but
they never do. However, they can return {error,on_load_failure} if
the -on_load function in a module fails.
* The specs claim that the functions can return {error,native_code},
but they never do.
While we are it, also extend the on_load_errors/1 test case to test
that the load functions return {error,on_load_failure} when an
-on_load function fails.
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The run-time system would terminate if code:load_abs/1 was
called with a filename containing any non-latin1 characters.
The reason is that code_server would attempt to construct a
module name from the filename using list_to_atom/1 and that
atoms currently are limited to the latin1 character set.
But how should the error be reported?
I have decided to that the simplest and least confusing way
is to move the call to list_to_atom/1 to 'code' module and
let it crash the calling process. The resulting stack back
trace will make it clear what the reason for the crash was.
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New timestamp options for trace, sequential trace, and
system profile:
- monotonic_timestamp
- strict_monotonic_timestamp
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Conflicts:
OTP_VERSION
erts/doc/src/notes.xml
erts/vsn.mk
lib/kernel/doc/src/notes.xml
lib/kernel/src/kernel.appup.src
lib/kernel/vsn.mk
lib/ssl/doc/src/notes.xml
lib/ssl/src/ssl.appup.src
lib/ssl/src/ssl_cipher.erl
lib/ssl/vsn.mk
otp_versions.table
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* soranoba/fix-file-position/PR-646:
Unify internal error handling
Fix file:pread and :pwrite to use character encoding
Clean up code for file:position/2
Fix file:position (not raw mode)
OTP-13155
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A new {line_delimiter, byte()} option allows line-oriented TCP-based
protocols to use a custom line delimiting character. It is to be
used in conjunction with {packet, line}.
This option also works with erlang:decode_packet/3 when its first argument
is 'line'.
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Several users on erlang-questions have reported problems with recent
releases where output to standard_error causes standard_error_sup to
die from receiving an unexpected eagain error. In the fd_driver,
change the fd_async() function to handle EINTR, and change
fd_ready_async() to handle ERRNO_BLOCK. Add a new test to
standard_error_SUITE to generate output to standard_error and ensure
that standard_error_sup does not die. Thanks to Kota Uenishi for
contributing the test case.
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* egil/cuddle-tests:
kernel: Remove ?line macros in inet_SUITE:t_gethostbyaddr/1
erts: Tweak statistics_SUITE:scheduler_wall_time/1
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* nybek/fix_so_linger_zero__simple:
Update prim_inet.beam
Fix socket option {linger, {true, 0}} to abort TCP connections
Apply 'show_econnreset' socket option to send errors as well
Add 'show_econnreset' TCP socket option
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* egil/fix-cover-error_logger/OTP-12818:
cover: Unstick modules before loading remote
kernel: Add module name to sticky_dir error message
kernel: Remove ?line macros in error_logger_warn_SUITE
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* nybek/fix_inet_drv_add_multi_timer_logic:
Fix add_multi_timer() in inet_drv
Fix 6 tests in gen_tcp_misc_SUITE
OTP-12817
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* richcarl/avoid-try-native-load:
Update list of funcalls in kernel code_SUITE
Move architecture knowledge out of hipe loader
Avoid repeated calls to system_info in hipe loader
Avoid exception overhead if HiPE is disabled
HiPE help shouldn't modify the calling process
OTP-12816
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Up until now, if {linger, {true, 0}} is set on the socket and there is
data in the port driver queue, the connection is not aborted until
the port queue is empty and close() is called on the underlying file
descriptor. This bug allows an idle TCP client to prevent a server
from terminating the connection and freeing resources. This patch
fixes the problem by discarding the port queue if the socket is closed
when {linger, {true, 0}} is set.
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Up till now all send errors have been translated into a generic
{error, closed}. This patch allows {error, econnreset} to be
returned on send errors when it is detected that the TCP peer
has sent an RST.
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An ECONNRESET is a socket error which tells us that a TCP peer has sent
an RST. The RST indicates that they have aborted the connection and
that the payload we have received should not be considered complete. Up
until now, the implementation of TCP in inet_drv.c has hidden the
receipt of the RST from the user, treating it as though it was just
a FIN terminating the read side of the socket.
There are many cases where user code needs to be able to distinguish
between a socket that was closed normally and one that was aborted.
Setting the option {show_econnreset, true} enables the user to receive
ECONNRESET errors on both active and passive sockets.
A connected socket returned from gen_tcp:accept/1 will inherit the
show_econnreset setting of the listening socket.
By default this option is set to {show_econnreset, false}.
Note that this patch only enables the reporting of ECONNRESET when
the socket is being read from. It does not report ECONNRESET (or
EPIPE) when the user tries to write to a connection when an RST
has already been received. Currently the TCP implementation in
inet_drv.c hides all such send errors from the user in favour
of returning {error, close}. A separate patch will be needed to
enable the reporting of such errors.
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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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Fix the sorting logic in add_multi_timer() and expand the test case
coverage around this area.
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All of the tests are related to gen_tcp:accept/[1,2] and each of them
has the same problem: they ignore the return value of the
?EXPECT_ACCEPTS macro.
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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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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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Also fix and document the broken +We option.
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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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This reverts commit 4c4d7fa40e5fb59854724ce74b8aa3546525cb90.
This pr is causing some test failures that were missed at first.
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Also fix and document the broken +We option.
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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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* essen/zlib-windowbits:
Update zlib:zwindowbits/0 type to accept 8 and -8
OTP-12564
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When it called the "file:position", it subtract the size that was
read into the buffer, and returns the value.
However, it has been discarded buffer and correct position is lost,
if "file:postion" returns error.
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* raimo/infinite-loop-gethostbyname/OTP-12133:
Restore lookup order after test
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