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2018-02-26Merge branch 'lukas/erts/dirty_trace_clean_fix/OTP-14938' into maintLukas Larsson
* lukas/erts/dirty_trace_clean_fix/OTP-14938: erts: Delay cleanup of removed tracer on dirty scheds
2018-02-26Replace binary:bin_to_list CIF implementation with binary_to_listJohn Högberg
binary:bin_to_list had a poor implementation that resulted in excessive garbage collection. binary_to_list is almost identical and has a generally better implementation, so I've replaced binary:bin_to_list's CIF with a thin wrapper around binary_to_list. Granted, binary_to_list has a deprecated indexing scheme, but we're unlikely to ever remote it entirely and it's somewhat easy to move it to the 'binary' module later on.
2018-02-26erts: Delay cleanup of removed tracer on dirty schedsLukas Larsson
It is not simple to do the correct de-allocation on a dirty schedulers, so we just delay it until this process runs on a normal scheduler.
2018-02-26Merge pull request #1715 from erlang/KennethL-patch-1Kenneth Lundin
Update advanced.xml with correct default for number of processes
2018-02-26Merge pull request #1719 from josevalim/jv-faster-dialyzer-md5Hans Bolinder
dialyzer: Compute MD5s using the .beam file (OTP-14937)
2018-02-26Allow opening device files and FIFOs with file:open/2John Högberg
To the best of our knowledge this was introduced since file operations on device files/FIFO:s could hang the emulator forever back when the emulator was single-threaded and lacked IO threads; a read operation could block all progress preventing the write operation it waited for from occurring. Granted, this could still happen through starving all dirty IO schedulers, but the same issue can arise with NFS files which we've always allowed. Removing this restriction also lets us remove a stat(2) call that was added to specifically allow `/dev/null`.
2018-02-26Merge branch 'john/erts/nif-binary-iovec-fixes/OTP-14845/OTP-14931/OTP-14932'John Högberg
* john/erts/nif-binary-iovec-fixes/OTP-14845/OTP-14931/OTP-14932: Suggest using enif_make_new_binary when possible Make enif_make_binary return heap binaries if possible Expand ErlNifBinary by another word for future additions Unconditionally transfer ownership to the created term Tweak asserts and explain why the copy buf doesn't use the tmp obj list Free temporary iovecs through the tmp object list Add a helper function for attaching tmp objects to NIF environments
2018-02-26inets: Add unix domain socket support to httpcPéter Dimitrov
Change-Id: I44fe2670e36884e09600d17dd71b1e86b9ee75fa
2018-02-26Suggest using enif_make_new_binary when possibleJohn Högberg
While enif_make_binary will create heap-binaries from ErlNifBinaries when possible now, enif_alloc_binary still allocates a Binary* off-heap which is avoided entirely with enif_make_new_binary.
2018-02-26Make enif_make_binary return heap binaries if possibleJohn Högberg
This does not avoid allocating a ProcBin since we still need to release the binary somehow (and using the tmp obj list is slightly slower since it's an unavoidable off-heap allocation), but it does give us a hard limit on how long said ProcBin will live, which is a lot better than before. OTP-14845
2018-02-26Expand ErlNifBinary by another word for future additionsJohn Högberg
When fixing OTP-14931/14932 we had to settle for a solution that decreased performance in a few corner cases like multiple calls to enif_make_binary, as the other options on the table required extra fields which would have broken ABI compatibility. This is ABI-compatible since the fields are unused and at the end.
2018-02-26Unconditionally transfer ownership to the created termJohn Högberg
This fixes two corner-cases: 1) We will no longer return an invalid term when a binary inspected on environment A is used in enif_make_binary on environment B 2) A double-free in this sequence of events: * enif_alloc_binary(size, &bin); * enif_ioq_enq_binary(ioq, &bin, skip); * enif_make_binary(env, &bin); * enif_make_binary(env, &bin); OTP-14931 OTP-14932
2018-02-26Tweak asserts and explain why the copy buf doesn't use the tmp obj listJohn Högberg
2018-02-26Free temporary iovecs through the tmp object listJohn Högberg
Attaching to a ProcBin is the fastest way to delay the release of an already allocated Binary, but alloc_tmp_obj is a lot faster when starting from scratch since it usually uses temp_alloc.
2018-02-24Fix example MIB in the documentationPetr Gotthard
The EX1-MIB cannot be compiled because of the missing IMPORT of "experimental". The other instances EX1-MIB.mib (otp/lib/snmp/examples/ex1, lib/snmp/test/snmp_test_data) are correct. I synchronized the documentation with them.
2018-02-23Add a helper function for attaching tmp objects to NIF environmentsJohn Högberg
2018-02-23erts: Clarify enif_self docsSverker Eriksson
2018-02-23Sort entries and correct typosMichał Muskała
2018-02-23Merge branch 'maint'Hans Bolinder
* maint: dialyzer: Correct a parameterized opaque types bug
2018-02-23Merge branch 'hasse/dialyzer/fix_opaque_bug/OTP-14925/ERL-565' into maintHans Bolinder
* hasse/dialyzer/fix_opaque_bug/OTP-14925/ERL-565: dialyzer: Correct a parameterized opaque types bug
2018-02-23Merge pull request #1723 from jhogberg/john/erts/ets-whereis/OTP-14884John Högberg
Add ets:whereis/1 for resolving table names -> tid()
2018-02-23Merge branch 'maint'Hans Bolinder
* maint: stdlib: Correct a minor epp bug
2018-02-23Merge branch 'hasse/stdlib/minor_fix_epp' into maintHans Bolinder
* hasse/stdlib/minor_fix_epp: stdlib: Correct a minor epp bug
2018-02-22Merge 'sverker/erts/more-crash-dump-info/OTP-14820'Sverker Eriksson
2018-02-22erts,observer: Add port-suspended pids to crash dumpSverker Eriksson
2018-02-22erts,observer: Add port states and flags to crash dumpSverker Eriksson
2018-02-22Merge branch 'raimo/stdlib/rand-polish-stat-tests'Raimo Niskanen
* raimo/stdlib/rand-polish-stat-tests: Decrease tolerance a wee bit Repeat stat tests to only fail for systematic errors Fix histogram and outlier checks
2018-02-22Stop translating V4MAPPED addressesRaimo Niskanen
2018-02-22Merge branch 'maint'Hans Nilsson
* maint: ssh: Fix hanging engine test case on an old outdated version
2018-02-22Merge branch 'hans/ssh/cuddle_tests' into maintHans Nilsson
* hans/ssh/cuddle_tests: ssh: Fix hanging engine test case on an old outdated version
2018-02-22ssh: Fix hanging engine test case on an old outdated versionHans Nilsson
OpenSSL 1.0.1s-freebsd 1 Mar 2016
2018-02-22Merge branch 'maint'Hans Nilsson
* maint: Updated OTP version Prepare release ssh: Add option save_accepted_host ssh: No error message for signal kill ssh: Dont repeat supervisor defaults in map fields ssh: Move starting of channel child to ssh_channel_sup ssh: Test case for sup tree when shell server proc times out Conflicts: OTP_VERSION
2018-02-22Merge branch 'maint-20' into maintHans Nilsson
* maint-20: Updated OTP version Prepare release ssh: Add option save_accepted_host ssh: No error message for signal kill ssh: Dont repeat supervisor defaults in map fields ssh: Move starting of channel child to ssh_channel_sup ssh: Test case for sup tree when shell server proc times out
2018-02-22Clarify the named_table option to ets:new/2John Högberg
2018-02-22Add ets:whereis/1 for resolving table names -> tid()John Högberg
2018-02-21Compute MD5s in dialyzer using the .beam fileJosé Valim
The previous mechanism was based on the core file which meant that for every module in the PLT, we had to fetch its .beam file, retrieve Erlang AST, compile that down to core, serialize it into a binary and then get its MD5. In a project with stdlib, kernel, elixir and a small application in the PLT, relying only on the .beam sped up --check_plt from 10s to 0.8s.
2018-02-21Fix spec for beam_lib:all_chunks/1José Valim
2018-02-21Updated OTP versionOTP-20.2.4Erlang/OTP
2018-02-21Prepare releaseErlang/OTP
2018-02-21Merge branch 'hans/ssh/limit_knownhosts/OTP-14935' into maint-20Erlang/OTP
* hans/ssh/limit_knownhosts/OTP-14935: ssh: Add option save_accepted_host
2018-02-21Merge branch 'hans/ssh/no_error_for_kill/OTP-14930' into maint-20Erlang/OTP
* hans/ssh/no_error_for_kill/OTP-14930: ssh: No error message for signal kill
2018-02-21Merge branch 'hans/ssh/supervisor_timeout/OTP-14907' into maint-20Erlang/OTP
* hans/ssh/supervisor_timeout/OTP-14907: ssh: Dont repeat supervisor defaults in map fields ssh: Move starting of channel child to ssh_channel_sup ssh: Test case for sup tree when shell server proc times out
2018-02-21ssh: Add option save_accepted_hostHans Nilsson
2018-02-21stdlib: Correct a minor epp bugHans Bolinder
The bug was introduced in 87a0af4 (R18).
2018-02-21Merge PR-1708 from philipstears OTP-14934Sverker Eriksson
Optimize non-strict equality check of binaries differing in size
2018-02-21Merge branch 'maint'John Högberg
2018-02-21Merge branch 'john/runtime_tools/fix-sysinfo-to-file-formatting' into maintJohn Högberg
* john/runtime_tools/fix-sysinfo-to-file-formatting: Fix regression introduced in d468fcbb / OTP-14816
2018-02-21Decrease tolerance a wee bitRaimo Niskanen
2018-02-21Repeat stat tests to only fail for systematic errorsRaimo Niskanen
2018-02-21dialyzer: Correct a parameterized opaque types bugHans Bolinder
See also https://bugs.erlang.org/browse/ERL-565. To avoid loops, erl_types:t_is_subtype checks for equality using unopaqued types, but in (at least) one case something is lost: This fix makes sure that when forwarding arguments in dataflow, types with different parameters but equal when unopaqued are considered different. For example, dict:dict(0, {}) and dict:dict(0, []) are equal when unopaqued (due to how dict(_, _) is declared in module dict), but should be considered different when forwarding args.
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