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Send may have failed, port exit with dist_entry cleaned up
and then new pending connection with queued messages.
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When finalizing outgoing distribution messages
we transcode them into using tuple fallbacks if the
receiver does not support bitstrings and export-funs.
This can only happen if the message was first encoded toward
a pending connection when the receiver was unknown.
It's an optimistic approach optmimized for modern beam nodes,
that expect real bitstrings and funs (since <R13).
Only erl_interface/jinterface lack this support.
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even when reds <= 1
Removed micro optimization for first fun variable
to make things simpler.
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DFLAG_EXPORT_PTR_TAG and DFLAG_BIT_BINARIES
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in order to call ei_publish() separately.
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to avoid tuple fallbacks for export funs and bitstrings.
ToDo: Re-encode if receiver turn out to be erl_interface/jinterface.
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The least bad behavior I think:
* We cannot return 'noconnect' as caller might already have enqueued
monitor/link that never triggers.
* We cannot block waiting for connection as that can ruin latency
when 'noconnect' is used to avoid blocking auto-connect
(see gen_server and gen_statem).
But there might be users getting more cases of bad latency
waiting for a pendig connection, instead of a fast 'noconnect'.
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Removed distribution_SUITE:applied_monitor_node
as it seems to test apply of trapping BIF
and monitor_node does not trap anymore.
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Break out from 'flags' into new dedicated 'connection_id'
just for simplicity.
Also changed flags to low bits
and that affected enif_binary_to_term.
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as a preparation for async auto-connect requests.
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and remove ugly encoding fallback as {fun, ...}
DFLAGS_NEW_FUN_TAGS has been supported by vm/erl_interface/jinterface
since R13 or even older.
Renamed test case obsolete_funs to term2bin_tuple_fallbacks
and removed test for {fun,...} fallback
and added missing test for bitstring fallback {Binary, Bits}.
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Runs much faster now.
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for set/get_internal_state calls.
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Distribution flag DFLAG_UTF8_ATOMS is supported since R16
and mandatory since 20.0.
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to handle "lookup without refc++" correctly
which was introduced in 4dcb2ae7810a507b701a30072b2f514cab7ebbdb.
When decrementing refc to zero (in try_delete or prepare_try_delete)
we must always wait thread progress to make sure no thread has done
lookup without refc++ and is just about to do refc++ and thereby revive
the DistEntry. That is, we wait for a potential other thread to either
do refc++ or drop its pointer to the DistEntry.
And if that other thread does refc++ (in erts_ref_dist_entry)
it must also do the extra refc++ for the scheduled pending delete.
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* maint:
edoc: The map type is denoted map()
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* hasse/edoc/fix_map_type/OTP-14777:
edoc: The map type is denoted map()
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Refactor supervisor, and store children in a map instead of a list
OTP-14586
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Add 'used' option for binary_to_term/2
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HiPE: Support for literal tag, tests and bugfixes
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The map type was erroneously displayed as "#{}", the empty map type.
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* maint:
dialyzer: Display error messages without call stack
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* hasse/dialyzer/fix_crash_msg/OTP-14742:
dialyzer: Display error messages without call stack
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Add internal documentation for the beam_makeops script
OTP-14626
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* maint:
Recognize 'deterministic' when given in a -compile() attribute
Conflicts:
lib/compiler/src/beam_asm.erl
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* bjorn/compiler/fix-deterministic-attribute/ERL-498:
Recognize 'deterministic' when given in a -compile() attribute
OTP-14773
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* ingela/ssl/doc-link-fix:
ssl: Fix broken link in doc
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The 's' operand overloads the tags for pids and ports to represent
X and Y registers, respectively. At load time, refuse to load the
module if the "literal" term is not a pid or port, as it would be
interpreted as a register.
This does not happen with normally compiled code, but it can happen
if the compiler (or beam_asm) is abused like in the following example:
make_bad() ->
Pid = self(),
Forms = [{attribute, 0, module, bad_s_operand},
{attribute, 0, export, [{test, 0}]},
{function, 0, test, 0,
[{clause, 0, [], [],
[{call,0,{atom,0,tuple_size},[{integer, 0, Pid}]}]}]}],
{ok, Module, Bin} = compile:forms(Forms, [no_copt,no_postopt,report_errors]),
code:load_binary(Module, "bad_s_operand.erl", Bin).
With this commit applied, the following message will be printed
when make_bad() is run:
=ERROR REPORT==== 10-Nov-2017::14:47:59 ===
Loading of bad_s_operand.erl failed: badfile
=ERROR REPORT==== 10-Nov-2017::14:47:59 ===
beam/beam_load.c(2396): Error loading function bad_s_operand:test/0: op bif1_body: bsd:
the term '<0.60.0>' would be confused with a register
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As of commit 12b379 many of the reasons displayed after
"Analysis failed with error:"
erroneously include a call stack. The bug is now corrected.
The bug was pointed out in
http://erlang.org/pipermail/erlang-questions/2017-October/093838.html.
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* maint:
Updated OTP version
Update release notes
Update version numbers
inets: Prepare for release
inets: Add missing guard
Avoid WindowBits=8 as per the manual
Fix deflateParams on zlib 1.2.11
Ignore empty binaries in enif_inspect_iovec
Emasculate writable binaries on entering an iovec
Only apply EOS behaviors if there's pending data
Conflicts:
OTP_VERSION
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* maint-20:
Updated OTP version
Update release notes
Update version numbers
inets: Prepare for release
inets: Add missing guard
Avoid WindowBits=8 as per the manual
Fix deflateParams on zlib 1.2.11
Ignore empty binaries in enif_inspect_iovec
Emasculate writable binaries on entering an iovec
Only apply EOS behaviors if there's pending data
Stop assuming that all schedulers are managed when updating msacc
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