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2018-04-20erts: Use table ref for select continuationSverker Eriksson
and not the name. For more sane named table semantics. Applies to both select/1 continuation and trap context.
2018-04-20Merge pull request #1783 from bjorng/bjorn/deprecate-get_stacktrace/OTP-14692Björn Gustavsson
Deprecate erlang:get_stacktrace/1
2018-04-16Remove warnings for improper use of erlang:get_stacktrace/0Björn Gustavsson
Those warnings don't make sense any more since erlang:get_stacktrace/0 is now deprecated.
2018-04-16Deprecate erlang:get_stacktrace/0Björn Gustavsson
2018-04-13Add zzz_SUITE with erts_debug:lc_graph last in testsSverker Eriksson
for erts, stdlib, kernel and runtime_tools.
2018-04-10stdlib: Fix timer monotonic time linkLukas Larsson
2018-04-09erl_docgen: Add ghlink step for all non-generated doc xml filesLukas Larsson
In order to get line numbers into the ghlink we have to add a post processing step for all xml files.
2018-04-08Reflect actual timer:tc behaviour in documentationTobias Pfeiffer
It was switched to monotnic_time from timestamp 3 years ago in d927209aa36fe370eb4ecf0a081923b0b951458b
2018-04-04Merge pull request #1725 from michalmuskala/fun-literalsBjörn Gustavsson
Compile external fun expressions to literals OTP-15003
2018-03-28stdlib: Remove reference to inets:ftp in erl_tar.xmlPéter Dimitrov
Change-Id: I5328d5feeac3b7279a8770e8fc27e2d9e8eed359
2018-03-27Merge branch 'dgud/revert-string-depr'Dan Gudmundsson
* dgud/revert-string-depr: Revert "Deprecate old string functions"
2018-03-26Compile external fun expressions to literalsMichał Muskała
The expressions fun M:F/A, when all elements are literals are also treated as a literal. Since they have consistent representation and don't depend on the code currently loaded in the VM, this is safe. This can provide significant performance improvements in code using such functions extensively - a full function call to erlang:make_fun/3 is replaced by a single move instruction and no register shuffling or saving registers to stack is necessary. Additionally, compound data types that contain such external functions as elements can be treated as literals too. The commit also changes the representation of external funs to be a valid Erlang syntax and adds support for literal external funs to core Erlang.
2018-03-26Merge branch 'raimo/type-posix-0-overhaul/ERL_550/OTP-14019'Raimo Niskanen
* raimo/type-posix-0-overhaul/ERL_550/OTP-14019: Update types for posix error codes
2018-03-26Update types for posix error codesRaimo Niskanen
I have read the man pages for most socket and file operations on recent Linux, FreeBSD, OpenBSD and Solaris 10 and noted the possible error codes. Which error codes that are possible for file operations have been updated in file:posix/0. Error codes for socket operations in inet:posix/0. The latter refers to the former so it is a superset, assuming that e.g sendfile and AF_UNIX socket operations could cause socket operations to return any file error code. That is not entirely true, but could be, especially in the future. Added to file:posix/0 are: ebadmsg edeadlk edeadlock eftype emultihop enobufs enolck enolink enosr enostr enosys eopnotsupp eoverflow erange etxtbsy Added to inet:posix/0 are all but: exbadport exbadseq file:posix() These are still possible according to erl_posix_str.c, but are not in file:posix/0 nor in inet:posix/0, and many of them are not file nor inet related, but some might be: e2big eadv ealign ebade ebadfd ebadr ebadrpc ebadrqc ebadslt ebfont echild echrng ecomm edirty edom edotdot eduppkg eidrm einit eisnam elbin el2hlt el2nsync el3hlt el3rst elibacc elibbad elibexec elibmax elibscn elnrng enavail enet enoano enocsi enodata enoexec enonet enosym enotempty enotnam enotuniq eproclim eprocunavail eprogmismatch eprogunavail erefused eremchg eremdev eremote eremoteio eremoterelease erpcmismatch erremote eshutdown esrmnt esuccesss etime etoomanyrefs euclean eunatch eusers eversion exfull sysnotready vernotsupported ediscon enomore ecancelled einvalidproctable einvalidprovider eproviderfailedinit syscallfailure service_not_found type_not_found e_no_more e_cancelled unknown
2018-03-26Merge pull request #1703 from juhlig/masterHans Bolinder
[ERL-557] add is_empty/1 to sets and ordsets OTP-14996, ERL-557, PR-1703
2018-03-23tests for is_empty/1j.uhlig
2018-03-22Revert "Deprecate old string functions"Dan Gudmundsson
It has been decided that it was to early to deprecate the old string functions. This partially reverts commit ccb3f7f9768d3c28783c771df47eec1829e51802.
2018-03-22Merge branch 'maint'Raimo Niskanen
* maint: Updated OTP version Update release notes Update version numbers ssh: Fix bad spec for double_algs() in ssh.hrl Test event insert from init Fix init to allow all actions Conflicts: OTP_VERSION
2018-03-21Update release notesErlang/OTP
2018-03-21Update version numbersErlang/OTP
2018-03-21stdlib: Make benchmarks more robustHans Bolinder
statistics(runtime) does not seem to work on some virtual machines.
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.
2018-03-20Merge pull request #1744 from uabboli/hasse/stdlib/lists_search/OTP-14675Hans Bolinder
stdlib: Add function lists:search/2
2018-03-19update gb_sets doc to include is_empty/1 compat with sets and ordsetsj.uhlig
2018-03-19is_empty/1 for setsj.uhlig
2018-03-19is_empty/1 for ordsetsj.uhlig
2018-03-17Test event insert from initRaimo Niskanen
2018-03-16mikpe/process_info-1-no-messages/PR-1745/OTP-14986Lukas Larsson
make erlang:process_info/1 not retrieve messages
2018-03-15Fix init to allow all actionsRaimo Niskanen
2018-03-14Merge branch 'maint'Henrik
Conflicts: OTP_VERSION
2018-03-13Merge branch 'sverker/dist-flags-consolidate'Sverker Eriksson
2018-03-13Merge pull request #1743 from richcarl/io-format-multiple-modifiersHans Bolinder
Allow multiple modifier characters in io:format control sequences OTP-14971
2018-03-12Allow multiple modifier characters in io:format control sequencesRichard Carlsson
This makes it possible to print unicode atoms at the same time as suppressing detection of printable lists.
2018-03-10make erlang:process_info/1 not retrieve messagesMikael Pettersson
process_info/1 retrieves a number of properties related to a process, including the list of messages in its mailbox. This is potentially unsafe if the target process has a large number of queued messages: - there is no a priori upper bound on the amount of memory being allocated to hold that list, and - the loop to retrieve the messages is uninterruptible, so the Erlang scheduler where this executes blocks for the duration We've seen process_info/1 bring down heavily loaded nodes on more than one occasion. At least once it appeared to have blocked the Erlang heart process from executing, causing the external heart to kill the VM. Consequently this removes 'messages' from the list of process_info tags to retrieve for process_info/1. Note that process_info/1 still retrieves 'message_queue_len', and process_info/2 can still retrieve 'messages' when asked to. A few places in the OTP libraries need minor adjustments, since they want 'message_queue_len' but compute it from the length of the list of messages.
2018-03-09stdlib: Add function lists:search/2Hans Bolinder
This is essentially PR 102, https://github.com/erlang/otp/pull/102. The OTP Technical Board decided to change the name of the function to search/2.
2018-03-09Update release notesErlang/OTP
2018-03-09Update version numbersErlang/OTP
2018-03-09Merge pull request #1735 from richcarl/io_lib-unscan-fixHans Bolinder
Make io_lib:unscan_format/1 work with pad char and default precision OTP-14958
2018-03-08stdlib: Improve io_lib:limit_term/2Hans Bolinder
Improve handling of maps. Addendum to b57e890.
2018-03-08Merge pull request #1737 from richcarl/io-format-printable-strings-docHans Bolinder
Improve documentation of io:format ~p when Unicode is involved
2018-03-08Improve documentation of io:format ~p when Unicode is involvedRichard Carlsson
2018-03-05stdlib: Fix receive-ref optimization for gen_server:callSverker Eriksson
Optimization does not trigger for try-catch. But send cannot fail here anyway, as Process cannot be an atom.
2018-03-02kernel,stdlib: Remove obsolete use of send with 'noconnect'Sverker Eriksson
as workarounds to avoid blocking auto-connect, which is now asynchronous in OTP-21. Also changed old catch to more efficient try-catch.
2018-03-02stdlib: Remove obsolete use of monitor_nodeSverker Eriksson
as fallback when erlang:monitor failed toward primitive nodes, which it does not do in OTP-21.
2018-03-02Merge pull request #1734 from wojtekmach/wm-erl-tar-docs-typoLukas Larsson
Fix typo in erl_tar:format_error/1 docs
2018-03-02Make io_lib:unscan_format/1 work with pad char and default precisionRichard Carlsson
2018-03-02Merge branch 'maint'Lukas Larsson
2018-03-02Merge branch 'lukas/kernel/fix_os_cmd_max_size_win32/OTP-14940' into maintLukas Larsson
* lukas/kernel/fix_os_cmd_max_size_win32/OTP-14940: stdlib: Fix doc link in timer kernel: Fix handling of os:cmd option max_size in win
2018-03-01Fix typo in erl_tar:format_error/1 docsWojtek Mach