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2018-06-18Update copyright yearHenrik Nord
2018-05-17Merge PR-1819 from sverker/enif_binary_to_term-bug/OTP-15080Sverker Eriksson
Fix bug in enif_binary_to_term for immediates
2018-05-16erts: Fix bug in enif_binary_to_term for immediatesSverker Eriksson
Symptom: Heap corruption Expanded test case to provoke this bug and test some more term types.
2018-04-04Merge branch 'sverker/monitor-frenzy-fix'Sverker Eriksson
2018-03-28erts: Fix race in nif_SUITE:monitor_frenzySverker Eriksson
detected by valgrind. We cannot compare monitor in state MON_FREE before it's initialized. Still not really kosher to access 'state' without lock or atomic-op.
2018-03-23Add enif_make_map_from_arraysJohn Högberg
2017-11-30Add enif_ioq_peek_headJohn Högberg
This introduces a way to retrieve erlang terms from NIF IO queues without having to resort to copying. OTP-14797
2017-10-02erts: enif_select steal testDmytro Lytovchenko
2017-09-05erts: Add nif ioqLukas Larsson
2017-06-09Merge pull request #1400 from tburghart/trb/erts/enif_whereisRickard Green
Add enif_whereis_pid() and enif_whereis_port() functions OTP-14453
2017-05-23erts: Fix nif_SUITE:monitor_frenzy for threadlessSverker Eriksson
2017-05-23erts: Test monitor resource destructor from threadSverker Eriksson
which is scheduled on non-smp VM.
2017-05-22Add enif_whereis_...() functionsTed Burghart
#### Why do we need this new feature? There are cases when a NIF needs to send a message, using `enif_send()`, to a long-lived process with a registered name. A common use-case is logging, where asynchronous fire-and-forget messages are the norm. There can also be cases where a yielding or dirty NIF or background thread may request a callback from a service with additional information it needs to complete its operation, yielding or waiting (with suitable timeouts, etc) until its state has been updated through the NIF module's API. NIFs can only send messages to pids, and the lack of name resolution leaves a complicated dance between separate monitoring processes and the NIF as the only way to keep a NIF informed of the whereabouts of such long-lived processes. Providing a reliable, built-in facility for NIFs to resolve process (or port) names simplifies these use cases considerably. #### Risks or uncertain artifacts? Testing has not exposed any significant risk. The implementation behaves as expected on regular and dirty scheduler threads as well as non-scheduler threads. By constraining the `enif_whereis_...()` functions to their minimal scopes and using patterns consistent with related functions, the implementation, testing, and maintenance burden is low. The API and behavior of existing functions is unchanged. #### How did you solve it? While extending `enif_send()` to operate on a pid or an atom (as `erlang:send/2` does) was attractive, it would have entailed changing the type of its `to_pid` parameter and thereby breaking backward compatibility. The same consideration applies to `enif_port_command()`. That leaves a choice between 1, 2, or 3 new functions: 1. `enif_whereis()` 2. `enif_whereis_pid()` and `enif_whereis_port()` 3. All of the above. While option (1), directly mimicking the behavior of `erlang:whereis/1`, is appealing, it poses potential problems if `pid()` or `port()` are subsequently implemented as non-integral types that must be bound to an owning `ErlNifEnv` instance. Therefore, option (2) has been chosen to use `ErlNifPid`/`ErlNifPort` structures in the API to maintain proper term ownership semantics.
2017-05-04Update copyright yearRaimo Niskanen
2017-04-22erts: Allow for easier future enif_hash expansionGuilherme Andrade
Allow for expanding support to 64-bit hashes without breaking the interface.
2017-04-22erts: Support custom salt in enif_hashGuilherme Andrade
2017-04-20erts: Refactor enif_phash2 into enif_hashGuilherme Andrade
A more generic hashing function which can also hash terms based on `make_internal_hash'.
2017-04-20erts: Remove enif_phash2_rangedGuilherme Andrade
2017-04-19erts: Add enif_phash2 and enif_phash2_rangedGuilherme Andrade
These allow one to hash VM terms from NIF code.
2017-02-20Fix ErlNifMonitor handlingSverker Eriksson
2017-02-20erts: Skip nif_SUITE:select on windowsSverker Eriksson
for now...
2017-02-20Expand nif_SUITE:monitor_frenzy to verify dtor callsSverker Eriksson
2017-02-20Expand nif_SUITE:monitor_frenzy with binary_to_termSverker Eriksson
to provoke resource revival race.
2017-02-20Merge branch 'master' into sverker/enif_selectSverker Eriksson
Conflicts: erts/emulator/beam/erl_binary.h erts/emulator/beam/erl_monitors.c erts/emulator/beam/erl_nif.c erts/emulator/beam/global.h erts/emulator/test/nif_SUITE_data/nif_SUITE.c
2017-02-20erts: Add enif_compare_monitorsSverker Eriksson
# Conflicts: # erts/emulator/test/nif_SUITE_data/nif_SUITE.c
2017-02-09erts: Change return value for enif_selectSverker Eriksson
to negative int as error and positive as success.
2017-02-09erts: Add pid argument to enif_selectSverker Eriksson
2017-02-09erts: Add enif_monitor_process and enif_demonitor_processSverker Eriksson
2017-02-06Use magic refs for NIF resourcesRickard Green
2017-01-12erts: Cleanup and extra assertions in nif_SUITE.cSverker Eriksson
2017-01-09nif_SUITE: Send message from stop callbackSverker Eriksson
2017-01-09erts: Cleanup and extra assertions in nif_SUITE.cSverker Eriksson
2016-12-19Add ErlNifSelectReturnSverker Eriksson
2016-12-19nif_SUITE: Add last_fd_stop_callSverker Eriksson
2016-12-19Add stop arguments: fd and is_direct_callSverker Eriksson
2016-12-19erts: Add testing + some minor fixesSverker Eriksson
2016-11-30erts: Add enif_select & enif_open_resource_type_xSverker Eriksson
2016-11-23erts: Add tests of nif API 2.0Sverker Eriksson
2016-11-23erts: Change nif_SUITE to use binaries for raw pointersSverker Eriksson
2016-11-23erts: Add testing of old nif APISverker Eriksson
2016-11-01erts: Add notsup error for load_nif/2 from hipe codeSverker Eriksson
2016-09-23Merge branch 'sverker/remove-nif-reload/OTP-13908'Sverker Eriksson
* sverker/remove-nif-reload: erts: Cuddle nif_SUITE:consume_timeslice erts: Remove old doc note for erlang:load_nif erts: Remove deprecated nif 'reload' feature erts: Fix trace_nif_SUITE to load nif lib only once
2016-09-19Use more correct delimiters for erl_nif.h includeTuncer Ayaz
Anywhere but the beam sources we shouldn't #include "erl_nif.h", because what "erl_nif.h" does is: (1) fail to find it outside of -I dirs, (2) then treat it as if it was written like <erl_nif.h>. Using <erl_nif.h> skips (1). More information can be found in 6.10.2 of the C standard. Because the examples use "erl_nif.h", NIF projects in the Erlang ecosystem copy this verbatim and make the same mistake.
2016-09-19erts: Remove deprecated nif 'reload' featureSverker Eriksson
and instead let erlang:load_nif/2 return {error, {reload, _}} before even trying to load the library if a NIF library has already been successfully loaded for the calling module instance.
2016-09-14erts: Add nif_SUITE:t_on_loadSverker Eriksson
2016-08-25Update test-cases to use new symbolic time unitsRickard Green
2016-05-13Merge branch 'egil/erts/nif-format_term/OTP-13580'Björn-Egil Dahlberg
* egil/erts/nif-format_term/OTP-13580: runtime_tools: Change erts_snprintf to enif_snprintf erts: Document enif_snprintf erts: Add tests for enif_snprintf erts: Add enif_snprintf Conflicts: erts/emulator/beam/erl_nif_api_funcs.h
2016-05-11erts: Add tests for enif_snprintfBjörn-Egil Dahlberg
2016-05-11Move dirty nif test cases into dirty_nif_SUITERickard Green
2016-04-15Merge branch 'lukas/erts/enif_send_null_env/OTP-13495'Lukas Larsson
* lukas/erts/enif_send_null_env/OTP-13495: erts: Add enif_send with NULL as msg env