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2017-11-30Make file:sendfile/5 follow its documented error behaviorJohn Högberg
2017-11-30Reimplement efile_drv as a dirty NIFJohn Högberg
This improves the latency of file operations as dirty schedulers are a bit more eager to run jobs than async threads, and use a single global queue rather than per-thread queues, eliminating the risk of a job stalling behind a long-running job on the same thread while other async threads sit idle. There's no such thing as a free lunch though; the lowered latency comes at the cost of increased busy-waiting which may have an adverse effect on some applications. This behavior can be tweaked with the +sbwt flag, but unfortunately it affects all types of schedulers and not just dirty ones. We plan to add type-specific flags at a later stage. sendfile has been moved to inet_drv to lessen the effect of a nasty race; the cooperation between inet_drv and efile has never been airtight and the socket dying at the wrong time (Regardless of reason) could result in fd aliasing. Moving it to the inet driver makes it impossible to trigger this by closing the socket in the middle of a sendfile operation, while still allowing it to be aborted -- something that can't be done if it stays in the file driver. The race still occurs if the controlling process dies in the short window between dispatching the sendfile operation and the dup(2) call in the driver, but it's much less likely to happen now. A proper fix is in the works. -- Notable functional differences: * The use_threads option for file:sendfile/5 no longer has any effect. * The file-specific DTrace probes have been removed. The same effect can be achieved with normal tracing together with the nif__entry/nif__return probes to track scheduling. -- OTP-14256
2017-11-27Merge branch 'maint'Dan Gudmundsson
* maint: Update HOWTO with wxWidgets build examples https should be mapped to url and not seealso Update kernel appup for OTP-20.2
2017-11-27Merge branch 'siri/appups-20.2' into maintSiri Hansen
* siri/appups-20.2: Update kernel appup for OTP-20.2
2017-11-22Fix broken to_dis after merge from maint to masterBjörn Gustavsson
d8d07a7593d811 that added the to_dis option to the compiler no longer works when merged to master. That is because of 79f28cfd8df1b7 that removed some unused code in erts_debug. Fix this by adding a new function erts_debug:dis_to_file/2 and use it from compile module where we have access to the filename (in beam_listing we only have an opened file).
2017-11-20Merge branch 'maint'Lukas Larsson
Conflicts: lib/compiler/src/beam_listing.erl
2017-11-20compiler: Add +to_dis option that dumps loaded asmLukas Larsson
2017-11-15Move new|abort_connection_id to erts_internalSverker Eriksson
and drop _id suffix.
2017-11-15Cleanup net_kernelSverker Eriksson
2017-11-15Improve connection abortingSverker Eriksson
2017-11-15erts: Keep magic ref to DistEntry in net_kernelSverker Eriksson
to make sure it's kept alive.
2017-11-15erts: Introduce asynchronous auto-connectSverker Eriksson
2017-11-15kernel: Move auto connect into net_kernel serverSverker Eriksson
as a preparation for async auto-connect requests.
2017-11-15erts: Make DFLAGS_NEW_FUN_TAGS mandatorySverker Eriksson
and remove ugly encoding fallback as {fun, ...} DFLAGS_NEW_FUN_TAGS has been supported by vm/erl_interface/jinterface since R13 or even older. Renamed test case obsolete_funs to term2bin_tuple_fallbacks and removed test for {fun,...} fallback and added missing test for bitstring fallback {Binary, Bits}.
2017-10-23Update kernel appup for OTP-20.2Siri Hansen
2017-10-17Merge branch 'maint'Hans Bolinder
* maint: stdlib: Make ets:i/1 exit cleaner upon ^D (old Erlang shell)
2017-10-17Merge branch 'hasse/stdlib/fix_ets_i_1/OTP-14663' into maintHans Bolinder
* hasse/stdlib/fix_ets_i_1/OTP-14663: stdlib: Make ets:i/1 exit cleaner upon ^D (old Erlang shell)
2017-10-17Merge branch 'dgud/kernel/get_chars_raw_echo_off'Dan Gudmundsson
* dgud/kernel/get_chars_raw_echo_off: Let io:get_chars/2 (echo off) fetch chars without eol
2017-10-12Merge branch 'rickard/null-chars/ERL-370/OTP-14543'Rickard Green
* rickard/null-chars/ERL-370/OTP-14543: Don't allow null chars in various strings Conflicts: erts/emulator/beam/erl_alloc.types erts/preloaded/ebin/erlang.beam
2017-10-12Merge branch 'maint'Rickard Green
* maint: Revert "Merge branch 'rickard/null-char-filenames/ERL-370/OTP-14543' into maint"
2017-10-12Revert "Merge branch 'rickard/null-char-filenames/ERL-370/OTP-14543' into maint"Rickard Green
This reverts commit 0717a2194e863f3a78595184ccc5637697f03353, reversing changes made to 71a40658a0cef8b3e25df3a8e48a72d0563a89bf.
2017-10-11Don't allow null chars in various stringsRickard Green
Various places that now reject null chars inside strings - Primitive file operations reject it in filenames. - Primitive environment variable operations reject it in names and values. - os:cmd() reject it in its input. Also '=' characters are rejected by primitive environment variable operations in environment variable names. Documentation has been updated to document null characters in these types of data as invalid. Currently these operations accept null chars at the end of strings, but that will change in the future.
2017-10-03stdlib: Make ets:i/1 exit cleaner upon ^D (old Erlang shell)Hans Bolinder
Instead of crashing, ^D now exits Erlang if started with -oldshell.
2017-10-02Merge branch 'maint'Rickard Green
* maint: Don't allow null in filenames
2017-09-27Don't allow null in filenamesRickard Green
2017-09-22Speed up erts_debug:df()Björn Gustavsson
The test case erts_debug_SUITE:df/1 in the emulator test suite is about 4 times faster with this change.
2017-09-20Merge branch 'maint'Dan Gudmundsson
* maint: erts, stdlib: Fix xmllint warning Update runtime deps to depend on new stdlib functionality
2017-09-19Merge pull request #1557 from egobrain/000-fix-dns-lookupRaimo Niskanen
OTP-13133 Fixed dns lookup in case of server close connection with econnrefused
2017-09-19Update runtime deps to depend on new stdlib functionalityDan Gudmundsson
~tw and new string functions are new since OTP-20 (stdlib-3.4)
2017-09-18Merge branch 'maint'Siri Hansen
2017-09-15Merge branch 'siri/string-new-api'Siri Hansen
* siri/string-new-api: (28 commits) hipe (test): Do not use deprecated functions in string(3) dialyzer (test): Do not use deprecated functions in string(3) eunit (test): Do not use deprecated functions in string(3) system (test): Do not use deprecated functions in string(3) system (test): Do not use deprecated functions in string(3) mnesia (test): Do not use deprecated functions in string(3) Deprecate old string functions observer: Do not use deprecated functions in string(3) common_test: Do not use deprecated functions in string(3) eldap: Do not use deprecated functions in string(3) et: Do not use deprecated functions in string(3) os_mon: Do not use deprecated functions in string(3) debugger: Do not use deprecated functions in string(3) runtime_tools: Do not use deprecated functions in string(3) asn1: Do not use deprecated functions in string(3) compiler: Do not use deprecated functions in string(3) sasl: Do not use deprecated functions in string(3) reltool: Do not use deprecated functions in string(3) kernel: Do not use deprecated functions in string(3) hipe: Do not use deprecated functions in string(3) ... Conflicts: lib/eunit/src/eunit_lib.erl lib/observer/src/crashdump_viewer.erl lib/reltool/src/reltool_target.erl
2017-09-14kernel: Don't call other modules from simple error loggerSiri Hansen
error_logger implements a simple handler which is used when no other handler is active. This handler is used during system startup, when there is no guarantee that all modules are loaded and must therefore not use any other modules for the formatting. Commit 41b856a2cb270ef807beaa84afe1bb890de5f237 introduced a call to io_lib:printable_list/1, which is now removed.
2017-09-13Fixed dns lookup in case of server close connection with econnrefusedKozlov Yakov
2017-09-07Merge branch 'maint'Siri Hansen
2017-09-05kernel: update simple error logger to print Unicode stringsSiri Hansen
If printable range is set to 'unicode', the simple error logger will now recognize code points > 255 and print lists containing these as strings.
2017-09-05kernel: Improve handling of UnicodeHans Bolinder
2017-08-30Let io:get_chars/2 (echo off) fetch chars without eolDan Gudmundsson
When option 'echo off' is set no line editing is done and there is no need to wait until eol for io:get_chars. This solves the issue of not needing to wait for eol until chars are received from stdin, sometimes the user wants direct/raw unprocessed input.
2017-08-30Merge branch 'maint'Dan Gudmundsson
* maint: Always reply to sync requests
2017-08-28Always reply to sync requestsDan Gudmundsson
Otherwise processes doing io could get stuck. See ERL-472.
2017-08-28Merge branch 'rickard/dist/OTP-14459' into rickard/dist/master/OTP-14459Rickard Green
Conflicts: erts/emulator/beam/bif.c erts/emulator/beam/dist.c erts/emulator/beam/dist.h erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_node_tables.c erts/emulator/beam/erl_node_tables.h erts/emulator/beam/external.c
2017-08-28Introduce sender in distributed signals and dflag configurationRickard Green
2017-08-28Support for distribution controller processesRickard Green
2017-07-27Merge branch 'maint-20' into maintJohn Högberg
* maint-20: Updated OTP version Update release notes Update version numbers Fix doc for the 'quiet' option; it defaults to false asn1: Fix missing quotes of external encoding call Add a dedicated close function for TCP ports to prevent issues like ERL-430/448 Close TCP ports properly on send timeout erts: Add missing release note
2017-07-26Merge branch 'john/kernel/fix-disk-log-docs/OTP-14498' into maint-20Erlang/OTP
* john/kernel/fix-disk-log-docs/OTP-14498: Fix doc for the 'quiet' option; it defaults to false
2017-07-26Fix doc for the 'quiet' option; it defaults to falseJohn Högberg
2017-07-21Merge branch 'maint'Raimo Niskanen
2017-07-21Merge branch 'raimo/kernel/fix-spec-for-inet-get_rc-0/ERL-454' into maintRaimo Niskanen
* raimo/kernel/fix-spec-for-inet-get_rc-0/ERL-454: Improve spec and doc for inet:get_rc/0
2017-07-20Improve spec and doc for inet:get_rc/0Raimo Niskanen
2017-07-07Merge branch 'siri/appups-21'Siri Hansen
* siri/appups-21: Update sasl/test/test_lib.hrl with recent versions of kernel and stdlib Update appups in kernel, stdlib, and sasl for OTP-21.0
2017-07-06kernel: Do not use deprecated functions in string(3)Hans Bolinder