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2018-11-06Add a persistent term storageBjörn Gustavsson
Persistent terms are useful for storing Erlang terms that are never or infrequently updated. They have the following advantages: * Constant time access. A persistent term is not copied when it is looked up. The constant factor is lower than for ETS, and no locks are taken when looking up a term. * Persistent terms are not copied in garbage collections. * There is only ever one copy of a persistent term (until it is deleted). That makes them useful for storing configuration data that needs to be easily accessible by all processes. Persistent terms have the following drawbacks: * Updates are expensive. The hash table holding the keys for the persistent terms are updated whenever a persistent term is added, updated or deleted. * Updating or deleting a persistent term triggers a "global GC", which will schedule a heap scan of all processes to search the heap of all processes for the deleted term. If a process still holds a reference to the deleted term, the process will be garbage collected and the term copied to the heap of the process. This global GC can make the system less responsive for some time. Three BIFs (implemented in C in the emulator) is the entire interface to the persistent term functionality: * put(Key, Value) to store a persistent term. * get(Key) to look up a persistent term. * erase(Key) to delete a persistent term. There are also two additional BIFs to obtain information about persistent terms: * info() to return a map with information about persistent terms. * get() to return a list of a {Key,Value} tuples for all persistent terms. (The values are not copied.)
2018-10-24Merge branch 'bjorn/observer/fix-crashdump_viewer/ERL-722/OTP-15365' into maintBjörn Gustavsson
* bjorn/observer/fix-crashdump_viewer/ERL-722/OTP-15365: Eliminate crash in crashdump_viewer reading some literal maps
2018-10-24Merge pull request #1992 from bjorng/bjorn/stdlib/beam_lib/ERL-696Björn Gustavsson
beam_lib: Clarify the beam() type in code and documentation OTP-15378
2018-10-24crypto: Fix tests failing if more than one test engine availableHans Nilsson
This could happen in an Valgrind run: === Reason: no case clause matching ["otp_test_engine.so", "otp_test_engine.valgrind.so"] in function crypto:check_otp_test_engine/1 (crypto.erl, line 2026) in call from engine_SUITE:engine_load_all_methods/1 (engine_SUITE.erl, line 154)
2018-10-24crypto: Disable engine tests on Darwin and WindowsHans Nilsson
Does not work.
2018-10-24ssh: Re-phrase and adjust the documentation (ssh_file.xml)Hans Nilsson
2018-10-24ssh: Move some option's documentation to ssh_fileHans Nilsson
user_dir user_dir_fun (missing previously) *_passphrase system_dir
2018-10-24ssh: Clearify a couple of optionsHans Nilsson
user_dir, system_dir and *_passphrase are only used in the default callback module ssh_file
2018-10-24ssh: Links updated in ssh.xmlHans Nilsson
2018-10-24ssh: Add reference manual page for the ssh_file moduleHans Nilsson
This callback module has the knowledge about the different files used by Erlang/OTP SSH. It was unfortunatly not documented previously.
2018-10-24ssh: Add new User's Guide chapter about SSH terminologyHans Nilsson
The term "user" means different things in OpenSSH and in Erlang/SSH. This new chapter explains why.
2018-10-23public_key: Add DSA with SHA2 supportIngela Anderton Andin
2018-10-23Merge branch 'ingela/ssl/use-correct-len-aead' into maintIngela Anderton Andin
* ingela/ssl/use-correct-len-aead: ssl: Correct length to be used in additional data in CHACHA20_POLY1305 cipher
2018-10-23ssl: Correct length to be used in additional data in CHACHA20_POLY1305 cipherIngela Anderton Andin
2018-10-22Merge branch 'raimo/tcp-close-while-send/maint/ERL-561/OTP-12242' into maintRaimo Niskanen
* raimo/tcp-close-while-send/maint/ERL-561/OTP-12242: Write test case Fix hanging gen_tcp send vs close race Conflicts: erts/preloaded/ebin/prim_inet.beam
2018-10-22Merge branch 'ingela/ssl/aead-refactor' into maintIngela Anderton Andin
* ingela/ssl/aead-refactor: ssl: Refactor AEAD ciphers
2018-10-22Eliminate crash in crashdump_viewer reading some literal mapsBjörn Gustavsson
Literal maps with complex keys such as: #{"one"=>1,"two"=>2,"three"=>3,"four"=>4}. would produce a crash dump that `crashdump_viewer` was unable to read. https://bugs.erlang.org/browse/ERL-722
2018-10-19ssl: Refactor AEAD ciphersIngela Anderton Andin
TLS-1.3 needs to handle AEAD inputs diffrently than previous versions. Refactor code to facilitate TLS-1.3 additions. Change CHACHA20_POLY1305 NONCE to match RFC 7905. This will be important later when we fix interop with TLS compatible crypto invocation.
2018-10-19Write test caseRaimo Niskanen
2018-10-19Merge branch 'maint-19' into maintHans Nilsson
* maint-19: Updated OTP version Prepare release
2018-10-19beam_lib: Remove obsolete module() from the beam() typeBjörn Gustavsson
The type `beam()` in the `beam_lib` module is confusing: -type beam() :: module() | file:filename() | binary(). It says that the module name can be used to identify the BEAM module to be accessed, but passing in the module name only works if the BEAM file is located in the current working directory because the module is not searched for in the code path. The reason that it is allowed to pass in the module name as an atom is for backward compatibility. A long time ago, atoms instead of strings were used as filenames. For that reason, `filename` and `file` still accept atoms as filenames (although the practice is frown upon). `beam_lib` accepts an atom as the filename for the same reason. To remove the confusion, remove `module()` from the type and the mention of it in the documentation. Code that uses an atom as a filename will still work, but Dialyzer will issue a warning. https://bugs.erlang.org/browse/ERL-696
2018-10-19hipe: Don't use beam_lib:info/1 with an atom as filenameBjörn Gustavsson
2018-10-19Merge pull request #1975 from sirihansen/siri/logger/config-set-or-updateSiri Hansen
Forward set/update indicator to handler callback changing_config OTP-15364
2018-10-19Merge branch 'siri/cuddle' into maintSiri Hansen
* siri/cuddle: Fix gen_fsm_SUITE:start2/1 to terminate process synchronously Fix sys_SUITE:special_process/1 to terminating process synchronously
2018-10-18Prepare releaseErlang/OTP
2018-10-18Merge branch 'hans/eldap/prevent_EXIT_at_close/OTP-15342/ERIERL-242' into ↵Erlang/OTP
maint-19 * hans/eldap/prevent_EXIT_at_close/OTP-15342/ERIERL-242: eldap: Fix race at socket close
2018-10-18Merge branch 'maint-20' into maintHans Nilsson
* maint-20: Updated OTP version Prepare release
2018-10-17kernel: Fix spelling error in assert.hrlLukas Larsson
2018-10-17Merge branch 'igor/tcp-nopush-ERL-698/OTP-15357' into maintJohn Högberg
* igor/tcp-nopush-ERL-698/OTP-15357: "cork" tcp socket around file:sendfile Add nopush TCP socket option
2018-10-16Prepare releaseErlang/OTP
2018-10-16Merge branch 'sverker/erts/ets-select_replace-bug/OTP-15346' into maint-20Erlang/OTP
* sverker/erts/ets-select_replace-bug/OTP-15346: erts: Fix bug in ets:select_replace for bound key
2018-10-16Merge branch 'hans/eldap/prevent_EXIT_at_close/OTP-15342/ERIERL-242' into ↵Erlang/OTP
maint-20 * hans/eldap/prevent_EXIT_at_close/OTP-15342/ERIERL-242: eldap: Fix race at socket close
2018-10-16Fix gen_fsm_SUITE:start2/1 to terminate process synchronouslySiri Hansen
2018-10-16Fix sys_SUITE:special_process/1 to terminating process synchronouslySiri Hansen
2018-10-16Merge branch 'john/compiler/bs_match-anno-liveness-fix/OTP-15353/ERL-753' ↵John Högberg
into maint * john/compiler/bs_match-anno-liveness-fix/OTP-15353/ERL-753: beam_utils: Handle bs_start_match2 in anno_defs
2018-10-15beam_utils: Handle bs_start_match2 in anno_defsJohn Högberg
2018-10-12Merge branch 'maint-21' into maintRickard Green
* maint-21: Updated OTP version Prepare release erts: Fix UNC path handling on Windows erts: Fix a compiler warning eldap: Fix race at socket close Fix bug for sockopt pktoptions on BSD erts: Fix memory leak on file read errors
2018-10-12Prepare releaseErlang/OTP
2018-10-12Merge branch 'ingela/maint/ssl/packet-options-to-tls-sender/OTP-15348' into ↵Erlang/OTP
maint-21 * ingela/maint/ssl/packet-options-to-tls-sender/OTP-15348: ssl: TLS sender process needs to get updates of the socket option packet
2018-10-12Merge branch 'ingela/maint/ssl/close-alert-ERL-738/OTP-15337' into maint-21Erlang/OTP
* ingela/maint/ssl/close-alert-ERL-738/OTP-15337: ssl: ERL-738 - Correct alert handling with new TLS sender process
2018-10-12Merge branch 'hans/eldap/prevent_EXIT_at_close/OTP-15342/ERIERL-242' into ↵Erlang/OTP
maint-21 * hans/eldap/prevent_EXIT_at_close/OTP-15342/ERIERL-242: eldap: Fix race at socket close
2018-10-12Merge branch 'john/erts/fix-unc-paths-windows/OTP-15333/ERL-737' into maint-21Erlang/OTP
* john/erts/fix-unc-paths-windows/OTP-15333/ERL-737: erts: Fix UNC path handling on Windows erts: Fix a compiler warning
2018-10-12Merge branch 'bjorn/compiler/fix-binary-matching/ERL-689/OTP-15335' into ↵Erlang/OTP
maint-21 * bjorn/compiler/fix-binary-matching/ERL-689/OTP-15335: Fix rare bug in binary matching (again)
2018-10-12Merge branch 'raimo/BSD-sockopt-pktoptions/ERIERL-187/OTP-14297' into maint-21Erlang/OTP
* raimo/BSD-sockopt-pktoptions/ERIERL-187/OTP-14297: Fix bug for sockopt pktoptions on BSD
2018-10-12Merge pull request #1974 from ↵Raimo Niskanen
RaimoNiskanen/raimo/getifaddrs-netns/ERIERL-189/OTP-15121 Implement {netns,NS} option for inet:getifaddrs/1 and friends
2018-10-11crypto: Update RSA tests after algorithms doc chapterHans Nilsson
2018-10-11crypto: Update RSA options to match specs and different OpenSSL versionsHans Nilsson
- Put rsa_pkcs1_oaep_padding in supports/0 - #ifdef updates - Refine PKCS1_OAEP defines
2018-10-11Merge branch 'pr/1949' into maintDan Gudmundsson
* pr/1949: Run emacs tests from test_suite Emacs: consider case in erlang-get-identifier-at-point Emacs: do not accept compiler warnings in selected elisp files Emacs: add test-erlang-mode
2018-10-11ssl: Fix up incorrect automatic mergeIngela Anderton Andin
2018-10-11Merge branch 'ingela/maint/ssl/packet-options-to-tls-sender/OTP-15348' into ↵Ingela Anderton Andin
maint Conflicts: lib/ssl/src/tls_sender.erl
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