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Compressing the signatures or the contract records would cost time.
The contract records are still held in two places (code server and
PLT) in many cases.
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The two tables for (record) types and exported types are no longer
kept in memory (by the PLT) when analyzing, which reduces memory
consumption.
A first step towards removing (or replacing) the #plt{} record.
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The -T option has not been working for a long time.
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The table used during translation of forms to types used to be a
dictionary of the type info (-type(), -opaque(), and -record()) for
all modules. Now it is reduced to the modules that are needed to
handle references to types in other modules.
The PLT:s type info is still kept on the heap.
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* maint:
dialyzer: Increase time limit for tests
dialyzer: Optimize typesig
dialyzer: Optimize evaluation of complex code
dialyzer: Optimize collection of variables
Conflicts:
lib/dialyzer/src/dialyzer_typesig.erl
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* hasse/dialyzer/memory_opt/OTP-14126:
dialyzer: Increase time limit for tests
dialyzer: Optimize typesig
dialyzer: Optimize evaluation of complex code
dialyzer: Optimize collection of variables
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26b59dfe67e introduced support for arbitrary Unicode characters in
atoms. After that commit, it is possible to print any atom with
a "~s" format string:
1> io:format("~s\n", ['спутник']).
спутник
Note that the same text as a string will fail:
2> io:format("~s\n", ["спутник"]).
** exception error: bad argument
in function io:format/3
called as io:format(<0.53.0>,"~s\n",
[[1089,1087,1091,1090,1085,1080,1082]])
Being more permissive for atoms is probably beneficial for io:format/2.
However, for io_lib:format/2, the new behavior breaks this guarantee
in the documentation for io_lib:format/2:
If and only if the Unicode translation modifier is used in
the format string (that is, ~ts or ~tc), the resulting list
can contain characters beyond the ISO Latin-1 character range
(that is, numbers > 255).
The problem is that you can no longer be sure whether io_lib:format/2
will return an iolist that can be successfully passed to a port
or iolist_to_binary/1.
We see three solutions:
1. Keep the new behavior. That means that you can get non-iolist data
when you use ~s for printing an atom, but a 'badarg' when printing
Unicode strings. That is inconsistent, and it delays error detection
if the result is passed to a port or iolist_to_binary/1.
2. Always allow Unicode characters for ~s. That would be incompatible,
because ~s says that any binary is encoded in latin1, while ~ts says
that any binary is encoded in UTF-8. To implement this solution, we
could no longer support latin1 binaries; all binaries would have to
be encoded in UTF-8.
3. Only allow ~s for atoms where all characters are less than 256.
Require ~ts to print atoms such as 'спутник'.
We reject solution 1 because it is slightly incompatible and is
inconsistent.
We reject solution 2 because it too incompatible.
Therefore, this commit implements solution 3.
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* ingela/inets/maint/httpd-gracefull-shutdown/OTP-14174:
inets: httpd - shutdown gracefully on connection or TLS handshake errors
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* ingela/ssl/config-propagation:
ssl: Simplify configuration code
ssl: Make sure PEM cache works as intended
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* Add specs
* Change return signature to 'ok' instead of 'true'
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Fix lots of internal state updates just before termination that could
cause crash reports confused about timers.
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* hans/ssh/dh_group_exc_optimize/OTP-14169:
ssh: optimize kex dh_gex using new crypto functionality
crypto: Added optional length to paramlist in generate_key
ssh,crypto: prepare for release
# Conflicts:
# lib/ssh/src/ssh_transport.erl
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* hans/ssh/kex_gex_min_max/OTP-14166:
ssh: correct host key signature calculation
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* josevalim/atu8-chunk/PR-1078/OTP-14178:
Add new AtU8 beam chunk
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Use map instead of large tuple, which was not an option when the code
was written originally. More simplifications along these lines may
be done later to the state record.
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Move of PEM cache to own process was flawed and not all PEM files
where cached properly. We must properly handle both the ditributed
and the normal mode of the ssl application.
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This kex algorithm is now optimized so a long timetrap is not needed
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* maint:
Updated OTP version
Prepare release
Fixed crash when a table was deleted during checkpoint traversal
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* maint-19:
Updated OTP version
Prepare release
Fixed crash when a table was deleted during checkpoint traversal
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dialyzer_typesig:traverse_scc() now resets the context for each
element of the SCC. Since the results of traversing the elements are
saved in the 'cmap' table, there is no need to create an SCC
conjunction. For huge SCCs this saves quite some time: the
lift_lists() function added one element at a time, which made the
calculation of deps very slow.
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Improve the evaluation of long lists of constraints.
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Conflicts:
lib/ssh/src/ssh_connection_handler.erl
lib/ssh/src/ssh_transport.erl
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Conflicts:
lib/crypto/c_src/crypto.c
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Reason: insecure
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Reason: very insecure
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diffie-hellman-group16-sha512
diffie-hellman-group18-sha512
diffie-hellman-group14-sha256
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Conflicts:
lib/crypto/c_src/crypto.c
lib/crypto/src/crypto.erl
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