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2018-04-16tools: Generate typespecs in doc buildJohn Högberg
2018-03-23Merge branch 'rickard/signals/OTP-14589'Rickard Green
* rickard/signals/OTP-14589: Fix VM probes compilation Fix lock counting Fix signal order for is_process_alive Fix signal handling priority elevation
2018-03-22Fix signal order for is_process_aliveRickard Green
2018-03-21Merge pull request #1740 from rickard-green/rickard/signals/OTP-14589Rickard Green
Implementation of true asynchronous signaling between processes
2018-03-21Implementation of true asynchronous signaling between processesRickard Green
Communication between Erlang processes has conceptually always been performed through asynchronous signaling. The runtime system implementation has however previously preformed most operation synchronously. In a system with only one true thread of execution, this is not problematic (often the opposite). In a system with multiple threads of execution (as current runtime system implementation with SMP support) it becomes problematic. This since it often involves locking of structures when updating them which in turn cause resource contention. Utilizing true asynchronous communication often avoids these resource contention issues. The case that triggered this change was contention on the link lock due to frequent updates of the monitor trees during communication with a frequently used server. The signal order delivery guarantees of the language makes it hard to change the implementation of only some signals to use true asynchronous signaling. Therefore the implementations of (almost) all signals have been changed. Currently the following signals have been implemented as true asynchronous signals: - Message signals - Exit signals - Monitor signals - Demonitor signals - Monitor triggered signals (DOWN, CHANGE, etc) - Link signals - Unlink signals - Group leader signals All of the above already defined as asynchronous signals in the language. The implementation of messages signals was quite asynchronous to begin with, but had quite strict delivery constraints due to the ordering guarantees of signals between a pair of processes. The previously used message queue partitioned into two halves has been replaced by a more general signal queue partitioned into three parts that service all kinds of signals. More details regarding the signal queue can be found in comments in the erl_proc_sig_queue.h file. The monitor and link implementations have also been completely replaced in order to fit the new asynchronous signaling implementation as good as possible. More details regarding the new monitor and link implementations can be found in the erl_monitor_link.h file.
2018-03-14Merge branch 'maint'Henrik
Conflicts: OTP_VERSION
2018-03-09Update release notesErlang/OTP
2018-03-09Update version numbersErlang/OTP
2018-03-03Require alignDavid N. Welton
2018-03-02Merge branch 'maint'Dan Gudmundsson
* maint: Add updated type-spec to Emacs skeletons of OTP behaviours
2018-03-02Merge branch 'pr/1620' into maintDan Gudmundsson
* pr/1620: Add updated type-spec to Emacs skeletons of OTP behaviours
2018-03-02Add updated type-spec to Emacs skeletons of OTP behavioursHamidreza Soleimani
The changes are based on the latest versions of following modules and are also similar to gen_statem Emacs skeleton. Note that the gen_fsm is not updated because it is deprecated. application: * add/update type-spec for all callbacks * add start_phase/3 callback * add prep_stop/1 callback * add config_change/3 callback supervisor: * add/update type-spec for all callbacks supervisor_bridge: * add/update type-spec for all callbacks gen_server: * add/update type-spec for all callbacks * add format_status/2 callback gen_event: * add/update type-spec for all callbacks * add format_status/2 callback
2018-03-02Merge branch 'maint'Dan Gudmundsson
* maint: Derive `erlang-shell-mode` properly from `comint-mode`
2018-03-02Derive `erlang-shell-mode` properly from `comint-mode`Tianxiang Xiong
2018-03-01Merge branch 'maint'Dan Gudmundsson
* maint: emacs: delimiter first in icr works emacs: Indent delimiter first in term elements correctly emacs: Indent tuple (and maps) elements as list elements Add emacs indention testcase
2018-03-01Merge branch 'dgud/tools/emacs/indent-tests' into maintDan Gudmundsson
* dgud/tools/emacs/indent-tests: emacs: delimiter first in icr works emacs: Indent delimiter first in term elements correctly emacs: Indent tuple (and maps) elements as list elements Add emacs indention testcase OTP-14944
2018-03-01emacs: delimiter first in icr worksDan Gudmundsson
2018-03-01emacs: Indent delimiter first in term elements correctlyDan Gudmundsson
2018-03-01emacs: Indent tuple (and maps) elements as list elementsDan Gudmundsson
Avoid From: { ^^element1, ^^element2 } To: { ^element1, ^element2 }
2018-03-01Add emacs indention testcaseDan Gudmundsson
Split the manual testcase and run them in daily tests instead. Easy to run directly as well: (cd ../test; cerl -eval "emacs_SUITE:indent([])")
2018-02-25Add Erlang alignment regexpsDavid N. Welton
These allow for the alignment of maps and records
2018-02-13Merge branch 'maint'John Högberg
2018-02-13Merge branch 'john/tools/fix-lcnt-server-crash/PR-1711/OTP-14912' into maintJohn Högberg
2018-02-13Don't crash lcnt server if information/0 is called before collect/0Péter Gömöri
2018-02-12Automatically start lcnt server on first useJohn Högberg
lcnt:collect is documented as implicitly starting the lcnt server but didn't do so prior to this commit. I've decided to extend this behavior to all operations as the overhead is negligible and it's a bit more convenient to use.
2018-02-08Remove 'Example' without an example from docsPéter Gömöri
2018-02-06tools: Do not call erlang:get_stacktrace()Hans Bolinder
2017-12-22Merge branch 'maint'Hans Bolinder
* maint: tools: Correct a counting bug in Cover
2017-12-21tools: Correct a counting bug in CoverHans Bolinder
See also PR #1641, https://github.com/erlang/otp/pull/1641. The bug was introduced in commit ab435488a (Erlang/OTP 18).
2017-12-19Merge branch 'dgud/kernel/refc_sched_wall_time/OTP-11694'Dan Gudmundsson
* dgud/kernel/refc_sched_wall_time/OTP-11694: test: spawn scheduler_wall_time flag holder Turn on scheduler_wall_time in an alive process Redirect system_flag(scheduler_wall_time,_) to kernel_refc kernel: add a resource reference counter
2017-12-19Redirect system_flag(scheduler_wall_time,_) to kernel_refcRickard Green
2017-12-13Merge branch 'maint'Henrik Nord
2017-12-08Update release notesErlang/OTP
2017-12-08Update version numbersErlang/OTP
2017-11-30Fix incorrect assumption about process activityJohn Högberg
The tests assume that the most active process will be the current one, which is no longer true since the delayed_write option now uses a wrapper process for much of its work. The timeout for this test has been increased to account for the lack of delayed_write; 60s was enough for everything except the debug build on some machines.
2017-11-20Merge branch 'maint'Lukas Larsson
2017-11-15Remove obsolete erlang:dgroup_leaderSverker Eriksson
2017-11-15Remove obsolete erlang:dexit/2Sverker Eriksson
2017-11-15Remove obsolete erlang:dlink/1, dunlink/1 and dist_exit/3Sverker Eriksson
2017-11-15Remove obsolete erlang:dsendSverker Eriksson
2017-10-31Refactor xmllint check and make it fail on failureLukas Larsson
This commit also adds a check to see that all files that are part of an xi:include also have part of XML_FILES and vice versa. It also fixes any applications where this was not true.
2017-10-27Correct erlang:is_builtin/3 for apply/2 and yield/0Björn Gustavsson
erlang:is_builtin(erlang, M, F) returns false for apply/2 and yield/0. The documentation for erlang:is_builtin/3 says that it returns true for BIFs that are implemented in C. apply/2 and yield/0 are implemented in C (as BEAM instructions), and therefore the correct return value is true. Also see a similar argument that was made for apply/3 in the past: http://erlang.org/pipermail/erlang-bugs/2015-October/005101.html https://bugs.erlang.org/browse/ERL-500
2017-10-10Merge branch 'maint'Lars Thorsen
2017-10-10Merge branch 'lars/doc-cleanup/OTP-14475' into maintLars Thorsen
* lars/doc-cleanup/OTP-14475: [edoc] Remove unused module otpsgml_layout.erl Remove unused files from the documentation build
2017-09-28Remove unused files from the documentation buildLars Thorsen
2017-09-26Merge branch 'maint'Henrik Nord
2017-09-22Update release notesErlang/OTP
2017-09-22Update version numbersErlang/OTP
2017-09-21Merge branch 'maint'Hans Bolinder
* maint: fprof: Make sure the receiving file can handle Unicode
2017-09-21Merge branch 'hasse/tools/fprof_unicode_fix' into maintHans Bolinder
* hasse/tools/fprof_unicode_fix: fprof: Make sure the receiving file can handle Unicode