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* nybek/speed_up_supervisor_count_children:
Speed up supervisor:count_children/1; simple_one_for_one
Add supervisor:get_callback_module/1
OTP-13290
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Speed up supervisor:count_children/1 for simple_one_for_one
supervisors. This is achieved by avoiding looping through all the
child process and verifying that each one is alive.
For a supervisor with 100,000 'temporary' children the count-time will
drop from approx 25ms to about 0.005ms.
For a supervisor with 100,000 'permanent' or 'transient' children the
count-time will drop from approx 30ms to about 0.005ms.
This avoids having the supervisor block for an extended period while
the count takes place. Under normal circumstances the accuracy of the
result should also improve since the duration is too short for many
processes to die during the count.
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The new time warp safe option is safe_fixed_monotonic_time which
gives erlang:monotonic_time().
The safe_fixed option was also slightly changed. It now gives
erlang:timestamp() instead of erlang:now(). This has however
not been documented, so it is considered a compatible change.
The above effects both ets, and dets.
This commit also include the bugfix OTP-13239 for
dets:info(Tab, safe_fixed). The timestamp in the result returned
by dets:info(Tab, safe_fixed) was unintentionally broken as a
result of the time API rewrites in OTP 18.0.
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* riverrun/maint:
Recommend against using crypto:rand_bytes
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Fix mistakes found by 'xmllint'.
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beam_lib:all_chunks/1 and beam_lib:build_module/1 can be useful
for special-purpose stripping, for example to remove the "Line"
chunk.
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We'll need a way to limit the size of the crash report produced
by proc_lib:format(). Add format/3, where the third argument is
a depth argument.
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* mhssler/doc-os-unsetenv-unicode:
stdlib: Document os:unsetenv Unicode support
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In OTP 17 it is possible to mix types such as dict:dict() and
dict:dict(_, _) outside of the dict module (and similarly for some
other opaque types in STDLIB), but the results are unfortunately
possibly invalid warnings in users' code. In OTP 18 parameterized
opaque types with the same name but with different number of
parameters are no longer compatible when seen from outside of the
module where the types are declared.
The types in STDLIB have been updated accordingly; for instance
-opaque dict() :: dict(_, _).
has been replaced by
-type dict() :: dict(_, _).
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Several people have requested that the assert macros in EUnit should be
moved out to a separate header file. This patch puts them in
stdlib/include/assert.hrl, which gets included by the eunit.hrl file.
Thus, nothing changes for eunit users, but the asserts can now also be
included separately.
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* fishcakez/supervisor_ignore:
Don't store child that returns ignore in simple supervisor
OTP-12793
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With parametrized types and specs, modules using
orddict can be statically checked with dialyzer.
Although orddict have not been builtin types, it is
good and more natural to have its exported types and
specs aligned to builtin types.
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If a child of a simple_one_for_one returns ignore from its start
function no longer store the child for any restart type. It is not
possible to restart or delete the child because the supervisor is a
simple_one_for_one.
Previously a simple_one_for_one would crash, potentially without
shutting down all of its children, when it tried to shutdown a child
with undefined pid.
Previous only one undefined pid child was stored in a simple_one_for_one
supervisor no matter how many times the child start function returned
ignore.
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* sverk/ets-tab2file-syn/OTP-12737:
stdlib: Add 'sync' option to ets:tab2file/3
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Document that os:unsetenv/1 handles Unicode in the same way as os:getenv
and os:putenv.
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* richcarl/add-uptime-function:
Add uptime() shell command
OTP-12752
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to improve the chance of some real disk persistence
before tab2file returns.
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This reverts commit e09dd66dc4d89c62ddfd8c19791f9678d5d787c6.
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The code explaining the behaviour of `filtermap/2` had a syntax error and wouldn't compile
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* dgud/stdlib/rand/OTP-12586:
stdlib: Document and add normal distributed random value function
stdlib: Add new random functionality/module
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It is needed in various tests. It uses the Ziggurat algorithm, which
is the fastest that I know.
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Introduce erl_anno, an abstraction of the second element of tokens and
tuples in the abstract format. The convention that negative line
numbers can be used for silencing compiler warnings will no longer
work in OTP 19; instead the annotation 'generated' is to be used.
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* derek121/gen_server_doc_grammar:
Fix grammar in docs for multi_call/*
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* bjorn/maps:
Document the new {badmap,Term} and {badkey,Key} exceptions
Raise more descriptive error messages for failed map operations
erl_term.h: Add is_not_map() macro
Tigthen code for the i_get_map_elements/3 instruction
Pre-compute hash values for the general get_map_elements instruction
Teach the loader to pre-compute the hash value for single-key lookups
Optimize use of i_get_map_element/4
beam_emu: Slightly optimize update_map_{assoc,exact}
v3_codegen: Don't sort map keys in map creation/update
beam_validator: No longer require strict literal term order
Sort maps keys in the loader
De-optimize the has_map_fields instructions
erts/map_SUITE.erl: Add a test case that tests has_map_fields
Fully evaluate is_map/1 for literals at load-time
map_SUITE: Add tests of is_map/1 with literal maps
Run a clone of map_SUITE without optimizations
Remove the fail label operand of the new_map instruction
Correct transformation of put_map_assoc to new_map
Remove support for put_map_exact without a source map
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fold() and map() handle elements in a well-defined order.
Thanks to Rabbe Fogelholm for pointing out the bug.
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=== OTP-17.5 ===
Changed Applications:
- asn1-3.0.4
- common_test-1.10
- compiler-5.0.4
- crypto-3.5
- debugger-4.0.3
- dialyzer-2.7.4
- diameter-1.9
- eldap-1.1.1
- erts-6.4
- hipe-3.11.3
- inets-5.10.6
- kernel-3.2
- mnesia-4.12.5
- observer-2.0.4
- os_mon-2.3.1
- public_key-0.23
- runtime_tools-1.8.16
- ssh-3.2
- ssl-6.0
- stdlib-2.4
- syntax_tools-1.6.18
- test_server-3.8
- tools-2.7.2
- wx-1.3.3
Unchanged Applications:
- cosEvent-2.1.15
- cosEventDomain-1.1.14
- cosFileTransfer-1.1.16
- cosNotification-1.1.21
- cosProperty-1.1.17
- cosTime-1.1.14
- cosTransactions-1.2.14
- edoc-0.7.16
- erl_docgen-0.3.7
- erl_interface-3.7.20
- et-1.5
- eunit-2.2.9
- gs-1.5.16
- ic-4.3.6
- jinterface-1.5.12
- megaco-3.17.3
- odbc-2.10.22
- orber-3.7.1
- ose-1.0.2
- otp_mibs-1.0.10
- parsetools-2.0.12
- percept-0.8.10
- reltool-0.6.6
- sasl-2.4.1
- snmp-5.1.1
- typer-0.9.8
- webtool-0.8.10
- xmerl-1.3.7
Conflicts:
OTP_VERSION
erts/vsn.mk
lib/ssl/vsn.mk
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* rickard/time_api/OTP-11997: (22 commits)
Update primary bootstrap
inets: Suppress deprecated warning on erlang:now/0
inets: Cleanup of multiple copies of functions Add inets_lib with common functions used by multiple modules
inets: Update comments
Suppress deprecated warning on erlang:now/0
Use new time API and be back-compatible in inets Remove unused functions and removed redundant test
asn1 test SUITE: Eliminate use of now/0
Disable deprecated warning on erlang:now/0 in diameter_lib
Use new time API and be back-compatible in ssh
Replace all calls to now/0 in CT with new time API functions
test_server: Replace usage of erlang:now() with usage of new API
Replace usage of erlang:now() with usage of new API
Replace usage of erlang:now() with usage of new API
Replace usage of erlang:now() with usage of new API
Replace usage of erlang:now() with usage of new API
otp_SUITE: Warn for calls to erlang:now/0
Replace usage of erlang:now() with usage of new API
Multiple timer wheels
Erlang based BIF timer implementation for scalability
Implement ethread events with timeout
...
Conflicts:
bootstrap/bin/start.boot
bootstrap/bin/start_clean.boot
bootstrap/lib/compiler/ebin/beam_asm.beam
bootstrap/lib/compiler/ebin/compile.beam
bootstrap/lib/kernel/ebin/auth.beam
bootstrap/lib/kernel/ebin/dist_util.beam
bootstrap/lib/kernel/ebin/global.beam
bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
bootstrap/lib/kernel/ebin/inet_db.beam
bootstrap/lib/kernel/ebin/inet_dns.beam
bootstrap/lib/kernel/ebin/inet_res.beam
bootstrap/lib/kernel/ebin/os.beam
bootstrap/lib/kernel/ebin/pg2.beam
bootstrap/lib/stdlib/ebin/dets.beam
bootstrap/lib/stdlib/ebin/dets_utils.beam
bootstrap/lib/stdlib/ebin/erl_tar.beam
bootstrap/lib/stdlib/ebin/escript.beam
bootstrap/lib/stdlib/ebin/file_sorter.beam
bootstrap/lib/stdlib/ebin/otp_internal.beam
bootstrap/lib/stdlib/ebin/qlc.beam
bootstrap/lib/stdlib/ebin/random.beam
bootstrap/lib/stdlib/ebin/supervisor.beam
bootstrap/lib/stdlib/ebin/timer.beam
erts/aclocal.m4
erts/emulator/beam/bif.c
erts/emulator/beam/erl_bif_info.c
erts/emulator/beam/erl_db_hash.c
erts/emulator/beam/erl_init.c
erts/emulator/beam/erl_process.h
erts/emulator/beam/erl_thr_progress.c
erts/emulator/beam/utils.c
erts/emulator/sys/unix/sys.c
erts/preloaded/ebin/erlang.beam
erts/preloaded/ebin/erts_internal.beam
erts/preloaded/ebin/init.beam
erts/preloaded/src/erts_internal.erl
lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl
lib/diameter/src/base/diameter_lib.erl
lib/kernel/src/os.erl
lib/ssh/test/ssh_basic_SUITE.erl
system/doc/efficiency_guide/advanced.xml
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* wmalik/minor-fixes:
Fix proc_lib doc
Remove commented out code
Fix make_hash description
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