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Using the low-level BEAM instructions, we can loop over each message in
the process queue and removes the first message that matches, without
receiving them all to later send them back to itself.
The function prim_eval:'receive'/2 is equivalent to the
following pseudo-code:
'receive'(F, T) ->
RESET MESSAGE QUEUE POINTER,
LOOP:
case PEEK CURRENT MESSAGE WITH TIMEOUT T of
{ok,Msg} ->
case F(Msg) of
nomatch ->
DECREMENT TIMEOUT T,
ADVANCE MESSAGE QUEUE POINTER,
GOTO LOOP;
Result ->
RESET MESSAGE QUEUE POINTER,
Result
end;
timeout ->
RESET MESSAGE QUEUE POINTER,
timeout
end.
To not break Dialyzer and other tools, we use a stub Erlang module which
abstract code is forcefully inserted into prim_inet.erl afterwards
compilation.
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Also clean up appup_test in sasl_SUITE by removing old versions that
are no longer used.
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This is to allow space in the path.
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* Update systool_lib:read_term/1 to honour magic encoding comment in file.
* Add unicode option to re:compile and re:run when appropriate,
allowing e.g. unicode filenames.
* systools_make to allow unicode strings in .rel and .app files
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* nox/enable-silent-rules/OTP-10726:
Implement ./otp_build configure --enable-silent-rules
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With silent rules, the output of make is less verbose and compilation
warnings are easier to spot. Silent rules are disabled by default and
can be disabled or enabled at will by make V=0 and make V=1.
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rickard/r16/port-optimizations/OTP-10336
* rickard/port-optimizations/OTP-10336:
Change annotate level for emacs-22 in cerl
Update etp-commands
Add documentation on communication in Erlang
Add support for busy port message queue
Add driver callback epilogue
Implement true asynchronous signaling between processes and ports
Add erl_drv_[send|output]_term
Move busy port flag
Use rwlock for driver list
Optimize management of port tasks
Improve configuration of process and port tables
Remove R9 compatibility features
Use ptab functionality also for ports
Prepare for use of ptab functionality also for ports
Atomic port state
Generalize process table implementation
Implement functionality for delaying thread progress from unmanaged threads
Conflicts:
erts/doc/src/erl_driver.xml
erts/doc/src/erlang.xml
erts/emulator/beam/beam_bif_load.c
erts/emulator/beam/beam_bp.c
erts/emulator/beam/beam_emu.c
erts/emulator/beam/bif.c
erts/emulator/beam/copy.c
erts/emulator/beam/erl_alloc.c
erts/emulator/beam/erl_alloc.types
erts/emulator/beam/erl_bif_info.c
erts/emulator/beam/erl_bif_port.c
erts/emulator/beam/erl_bif_trace.c
erts/emulator/beam/erl_init.c
erts/emulator/beam/erl_message.c
erts/emulator/beam/erl_port_task.c
erts/emulator/beam/erl_process.c
erts/emulator/beam/erl_process.h
erts/emulator/beam/erl_process_lock.c
erts/emulator/beam/erl_trace.c
erts/emulator/beam/export.h
erts/emulator/beam/global.h
erts/emulator/beam/io.c
erts/emulator/sys/unix/sys.c
erts/emulator/sys/vxworks/sys.c
erts/emulator/test/port_SUITE.erl
erts/etc/unix/cerl.src
erts/preloaded/ebin/erlang.beam
erts/preloaded/ebin/prim_inet.beam
erts/preloaded/src/prim_inet.erl
lib/hipe/cerl/erl_bif_types.erl
lib/kernel/doc/src/inet.xml
lib/kernel/src/inet.erl
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It was possible to insert {Mod::atom(),Vsn::term()} instead of
Mod::atom() in the modules list in a .app file. This was not visible
in the documentation of .app files, but it was visible in the
documentation of application:load/[1,2] (where the .app file term can
be used directly as first argument).
The Vsn part was never used, so this possibility has now been removed.
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OTP-10106
OTP-10107
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* jc/omit-undefined-start_phases-3:
Avoid undefined start_phases entry in .script
Avoid creating an undefined start_phases entry when generating a release
OTP-10003
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* siri/sasl/correct-app-name-in-error/OTP-9888:
Fix error message if stdlib has faulty start type in .rel file
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If stdlib had a different start type than permanent, systools_make
would fail but it would say that it was sasl that had faulty start
type. This has been corrected.
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Inorder to align with reltool a {start_phases,undefined} entry in will
no longer occur in the application specification in .script files. The
start_phases entry will only exist if it contains real start phases.
Also, the default value for #application.start_phases is no longer set
to [] in systools.hrl. This value was actually never used, since it
was always explicitly set in systools_make:parse_applications - by
default to 'undefined', so the default value in the record definition
was only a confusing detail. Anyway - now corrected.
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OTP-9984
Applications that are listed in {applications,Apps} in the app file
were not sorted correctly in the script file. They were loaded/started
in the reverse order of how they were listed in the .app file.
This is corrected so they are now sorted (internally between each
other) in the same way as they are listed in the .rel file.
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remove_file in release_handler would fail silently and leave directories
in inconsistent states if there was symlinks in a release directory
also added a test, otp_9864 to test change
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* siri/sasl/check-config-in-tar/OTP-9539:
Check that sys.config and relup have valid content when added to tar
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systools:make_tar now does a minor check of the content of sys.config
and relup before adding them to the tar file. If the content is not
readable or in expected format, the function fails.
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It should not be possible to create a .boot file unless kernel and
stdlib are stated as permanent applications in the .rel file. Note
that 'permanent' is the default start type, so not specifying a start
type for kernel and stdlib is, as always, ok.
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* siri/stdlib/dialyzer-supervisor/OTP-9741:
Add test for upgrade of supervisor
Fix dialyzer warnings in supervisor
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systools:make_tar has recently been updated to store the .rel file
in both releases and releases/<vsn> directories. Ths same commit
removed copying of this file from releases to releases/<vsn> in
release_handler:unpack_release. This commit adde this copy again to
make sure the file is not lost if the tar file was created with an
older systools.
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Dialyzer complained over a mismatch between the callback spec of
Mod:code_change in gen_server and the spec of supervisor:code_change
(which is the implementation of a gen_server Mod:code_change).
This commit changes the callback spec to allow {error,Reason} as
return value. Also, release_handler is updated to handle this return
value.
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systool:make_tar stores the rel file in the releases directory. When
unpacking with release_handler:unpack_release, the file is
automatically moved to releases/<vsn>/. If, however, the tar file is
unpacked manually, the rel file might not be moved, and the next
release unpacked might overwrite the rel file. To overcome this,
systools:make_tar now stores a copy of the rel file in releases/<vsn>/
directly and it is not longer necessary to move the file after
unpacking.
The reason for keeping the file in the releases directory also is that
is needs to be extracted separately before the release version <vsn>
is known.
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* siri/sasl/no-warn-missing-sasl/OTP-9738:
Add +no_warn_sasl flag when compiling start_clean.rel
Add option no_warn_sasl to systools:make_script
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* siri/sasl/xxgrade_app-with-restart/OTP-9735:
Fix release_handler:upgrade_app and downgrade_app when upgrading emulator
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This option will suppress the 'missing-sasl' warning which otherwise
is issued when compiling a .rel file which does not include the sasl
application.
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Changes to the mechanism for upgrading the emulator in OTP R15 was
erronously not handled in release_handler:upgrade_app, downgrade_app,
upgrade_script and downgrade_script. This has been corrected,
including test and documentation.
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* siri/sasl/upgrade-erts/OTP-9438:
Fix bug in erts upgrade on windows
Add release vsn info to erts_vsn_changed warning
Check for sasl application in systools:make_script and make_relup
Add syntax check of relup to check_install_release and install_release
Add documentation for upgrade from pre R15 to post R15 sasl
Handle upgrade from pre R15 to post R15 sasl
Step version of sasl to 2.2 for R15
Document upgrade instructions restart_new_emulator and restart_emulator
Wait for two restarts in upgrade_restart test
Add restart_new_emulator instruction to kernel, stdlib and sasl appups
Distinguish restart_new_emulator from restart_emulator in upgrade instructions
Upgrade erts: merge sys.config for tmp release instead of using old
Allow regexp for version in .appup
Restart emulator before running upgrade script when erts is upgraded
Conflicts:
lib/sasl/src/release_handler.erl
lib/sasl/test/release_handler_SUITE.erl
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The service which represents the temporary release during erts upgrade
on windows was never deleted. This has been corrected. The service is
now renamed just after the emulator restart.
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make_script will give warning but allow it
make_relup will fail since it is not possible to upgrade if sasl is
not included in both releases.
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This commit adds a check that all instructions in the relup are
valid. Earlier, the last part (after point_of_no_return) was not
checked before the actual installation started, meaning that if the
relup was hand written, there was a potential for crashing the upgrade
here.
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New emulator upgrade mechanism introduced in R15 can only work if the
sasl version to upgrade from is 2.2 or later. I.e. if we are already
running at least R15.
This commit adds backwards compatiblity for upgrades from earlier
versions, meaning that the new code is loaded into the old emulator
and code_change is executed - then after all application code is
updated, the emulator is restarted with the new erts version.
Note that this might cause problems if the new code is compiled with
the new emulator and there have been updates to the beam format. If
this happens, the workaround is to compile the new code with the old
emulator.
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