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2018-05-18erts: Fix narrow race between ets:new and ets:deleteSverker Eriksson
of same named table. If other process does ets:delete before ets:new has completely finished and done save_owned_table then ets:delete might do delete_owned_table and deref wild pointers in tb->common.owned.
2018-05-18erts: Add some missing doxygen docsSverker Eriksson
2018-05-18Merge branch 'sverker/ets-delete_all_objects-trap/OTP-15078'Sverker Eriksson
* sverker/ets-delete_all_objects-trap/OTP-15078: erts: Rename untrapping db_free_*empty*_table erts: Make ets:delete_all_objects yield on fixed table erts: Optimize ets delete all in fixed table erts: Refactor ets select iteration code erts: Cleanup ets code erts: Optimize ets hash object deallocactions erts: Refactor pseudo deleted ets objects erts: Make atomic ets:delete_all_objects yield erts: Fix reduction bump for ets:delete/1
2018-05-18Merge branch 'sverker/system-profile-bug/OTP-15085'Sverker Eriksson
* sverker/system-profile-bug/OTP-15085: erts: Fix bug in system_profile
2018-05-18erts: Fix bug in system_profileSverker Eriksson
seen to cause redundant {profile,_,active,_,_} messages when process is terminating.
2018-05-18Merge branch 'rickard/delete_process_schedule/OTP-15081'Rikard Green
* rickard/delete_process_schedule/OTP-15081: Do not hold runq lock while deleting a process
2018-05-17Merge branch 'sverker/maps-iterator-order' againSverker Eriksson
2018-05-17Merge PR-1819 from sverker/enif_binary_to_term-bug/OTP-15080Sverker Eriksson
Fix bug in enif_binary_to_term for immediates
2018-05-17tverlaan/add_dns_alternative_to_tcp_dist/PR-1694/OTP-15086Lukas Larsson
epmd: allow alternative to dns resolving for nodename
2018-05-16epmd: allow alternative to dns resolving for nodenameTimmo Verlaan
This makes it possible to create a custom integration with a key-value store for example. The key would then point to the actual address. You would have to write your own epmd module to make use of that feature.
2018-05-16erts: Silence gcc warningsSverker Eriksson
‘res’ may be used uninitialized in this function
2018-05-16Merge branch 'richcarl/eliminate_lib_module/PR-1786/OTP-15072'Hans Bolinder
* richcarl/eliminate_lib_module/PR-1786/OTP-15072: Fix minor issues Eliminate call to ct:get_progname() in ts_erl_config Use \n escape instead of integer 10 Move error formatting to erl_error.erl and delete lib.erl Move extended parse functions in lib.erl to erl_eval.erl Move lib:eval_str/1 into mod_esi.erl Remove lib:progname/0 Eliminate call to lib:progname/1 in slave.erl Add ct:get_progname/0 Remove lib:error_message/2 Remove lib:flush_receive/0 Remove lib:send/2 and lib:sendw/2 Move lib:nonl/1 into yecc.erl
2018-05-16erts: Fix bug in enif_binary_to_term for immediatesSverker Eriksson
Symptom: Heap corruption Expanded test case to provoke this bug and test some more term types.
2018-05-16Merge branch 'sverker/maps-iterator-order'Sverker Eriksson
2018-05-16Merge branch 'rickard/suspend/OTP-14964'Rickard Green
* rickard/suspend/OTP-14964: Fix erts_try_lock_sig_free_proc() Update etp Replace previous suspend in setnode/3 New process suspend implementation based on async signaling Teach HiPE to yield from receive
2018-05-16Fix erts_try_lock_sig_free_proc()Rickard Green
2018-05-16Replace previous suspend in setnode/3Rickard Green
2018-05-16New process suspend implementation based on async signalingRickard Green
2018-05-16Teach HiPE to yield from receiveRickard Green
2018-05-16Merge pull request #1811 from bjorng/bjorn/disable-fpe-supportBjörn Gustavsson
Disable the use of floating point exceptions
2018-05-16Merge branch 'sverker/sig-msg-notify-bug'Sverker Eriksson
2018-05-15erts: Fix bug when scheduling monitor-msg comboSverker Eriksson
Bug introduced in master by 613cde66c25464121f2f6dace99782bad0e07d9b
2018-05-15erts: Refactor new erts_make_dirty_proc_handledSverker Eriksson
from ensure_dirty_proc_handled as an outline function callable from inline functions.
2018-05-15Do not hold runq lock while deleting a processRickard Green
2018-05-15erts: Fix unused variable warning in unix prim fileLukas Larsson
2018-05-15erts: Fix erts_os_times warningLukas Larsson
2018-05-09erts: Try fix contant maps:next orderSverker Eriksson
Symptom: maps:iterator+next returns different orders for the exact same map. Problem: Number of cached key-values within iterator term depends on number of input reductions to erts_internal_map_next_3. Solution: Build cached key-values in destructive non-reverse order to not affect iteration order.
2018-05-09Disable the use of floating point exceptionsBjörn Gustavsson
Floating point exceptions has been disabled since 2011 on macOS (fa0f8d2c29b) and on Linux since 2014 (c7ddafbe6dbc) because there were unresolved stability issues. Floating point exceptions are not disabled by default on FreeBSD, and if OTP is compiled with gcc (as opposed to clang) floating point exceptions will be used. 81a6adab693a introduced a bug in erts/emulator/Makefile.in which would cause the building of OTP to fail if floating point exceptions were enabled. The bug was not noticed because it turns out that none of our daily build machines has floating point exceptions enabled. Since floating point exceptions is not tested, we should not expect them to work reliably on any platform. Therefore, turn off floating point exceptions unconditionally in erts/configure.in. For the moment we will keep the code in the runtime system that handles floating point exceptions. (This commit also fixes the bug in erts/emulator/Makefile.in, in case floating point exceptions ever become reliable and enabled.) https://bugs.erlang.org/browse/ERL-620
2018-05-08erts: Rename untrapping db_free_*empty*_tableSverker Eriksson
as it's now only used for empty tables by ets:new/2.
2018-05-08erts: Make ets:delete_all_objects yield on fixed tableSverker Eriksson
2018-05-08erts: Optimize ets delete all in fixed tableSverker Eriksson
by only allocating one FixedDeletion with the new "all" flag instead of one FixedDeletion per slot.
2018-05-08erts: Refactor ets select iteration codeSverker Eriksson
* Remove all "mtraversal_" prefixes. * Rename all local context variables as "ctx". * Changed callbacks from function arguments to members of new base context struct "match_callbacks_t" * Remove unnecessary struct initializations "= {0}"
2018-05-08erts: Cleanup ets codeSverker Eriksson
2018-05-08erts: Optimize ets hash object deallocactionsSverker Eriksson
to be done after lock has been released.
2018-05-08erts: Refactor pseudo deleted ets objectsSverker Eriksson
Separate pseudo-deleted-flag from the hash value.
2018-05-08erts: Make atomic ets:delete_all_objects yieldSverker Eriksson
by using a cooperative strategy that will make any process accessing the table execute delelete_all_objects_continue until the table is empty. This is not an optimal solution as concurrent threads will still block on the table lock, but at least thread progress is made.
2018-05-07Merge pull request #1802 from michalmuskala/map-is-key-bifBjörn Gustavsson
Introduce is_map_key/2 guard BIF OTP-15037
2018-05-04Move error formatting to erl_error.erl and delete lib.erlRichard Carlsson
2018-05-04Add ct:get_progname/0Richard Carlsson
This replaces all uses of lib:progname/0 in tests.
2018-05-04Merge branch 'john/erts/fix-windows-symlinks/OTP-15062/ERL-615'John Högberg
* john/erts/fix-windows-symlinks/OTP-15062/ERL-615: Stop assuming that all NTFS reparse points are links
2018-05-03Stop assuming that all NTFS reparse points are linksJohn Högberg
This fixes a crash that would occur when using file:read_file_info/1 on a file with a non-link reparse point, which are commonly seen in RSS and OneDrive folders.
2018-04-29Introduce is_map_key/2 guard BIFMichał Muskała
This complements the `map_get/2` guard BIF introduced in #1784. Rationale. `map_get/2` allows accessing map fields in guards, but it might be problematic in more complex guard expressions, for example: foo(X) when map_get(a, X) =:= 1 or is_list(X) -> ... The `is_list/1` part of the guard could never succeed since the `map_get/2` guard would fail the whole guard expression. In this situation, this could be solved by using `;` instead of `or` to separate the guards, but it is not possible in every case. To solve this situation, this PR proposes a `is_map_key/2` guard that allows to check if a map has key inside a guard before trying to access that key. When combined with `is_map/1` this allows to construct a purely boolean guard expression testing a value of a key in a map. Implementation. Given the use case motivating the introduction of this function, the PR contains compiler optimisations that produce optimial code for the following guard expression: foo(X) when is_map(X) and is_map_key(a, X) and map_get(a, X) =:= 1 -> ok; foo(_) -> error. Given all three tests share the failure label, the `is_map_key/2` and `is_map/2` tests are optimised away. As with `map_get/2` the `is_map_key/2` BIF is allowed in match specs.
2018-04-27Merge branch 'sverker/lc-thread-exit-free-fix'Sverker Eriksson
* sverker/lc-thread-exit-free-fix: erts: Fix memory leak in lock checker at thread exit
2018-04-27Merge branch 'rickard/process_info/OTP-14966'Rickard Green
* rickard/process_info/OTP-14966: Fix scheduled process_info() 'status' request Fix handling of process-info requests in receive
2018-04-27Fix scheduled process_info() 'status' requestRickard Green
2018-04-27Merge branch 'siri/kernel/logger/OTP-13295'Siri Hansen
* siri/kernel/logger/OTP-13295: Add documentation of the built-in logger handlers Catch badarg in logger:get_format_depth/0 Add chars_limit option to logger_formatter Don't kill logger process until all other processes are dead Set call timeout for logger_server to infinity Update primary bootstrap Test cuddle for logger Update cth_log_redirect to a logger handler Start using logger internally in kernel and stdlib Remove error_logger process and add logger process Add logger
2018-04-26erts: Optimize monitor signal by message piggybackSverker Eriksson
If no message/signal is sent (to same destination) then monitor signal is flushed when process is scheduled out.
2018-04-26erts: Cleanup some codeSverker Eriksson
2018-04-26Fix handling of process-info requests in receiveRickard Green
2018-04-26Merge branch 'rickard/dirty-schedulers-test-fix/OTP-15046'Rickard Green
* rickard/dirty-schedulers-test-fix/OTP-15046: Do not run tests that conflicts with dirty schedulers test