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2014-09-05Merge branch 'rickard/memory_consuming_tuple_tests' into maintRickard Green
* rickard/memory_consuming_tuple_tests: Only run upper boundry tuple test with lots of memory
2014-09-05Only run upper boundry tuple test with lots of memoryRickard Green
2014-09-04Merge branch 'sverk/MIN_SMALL-to-integer' into maintSverker Eriksson
* sverk/MIN_SMALL-to-integer: erts: Correct conversion of MIN_SMALL numeral to fixnum OTP-12140
2014-09-04erts: Correct conversion of MIN_SMALL numeral to fixnumSverker Eriksson
list_to_integer and binary_to_integer returned un-normalized bignum for -134217728 on 32-bit and -576460752303423488 on 64-bit. Thanks to Jesper Louis Andersen, Mikael Pettersson and Anthony Ramine for report, initial patch and optimization suggestion.
2014-09-04Merge branch 'sverk/nif-inspect-copy-bug/OTP-9828' into maintSverker Eriksson
* sverk/nif-inspect-copy-bug/OTP-9828: erts: Fix bug with enif_make_copy reallocating writable binary Conflicts: erts/emulator/test/nif_SUITE.erl
2014-09-03erts: Fix bug with enif_make_copy reallocating writable binarySverker Eriksson
that could invalidate a pointer received from an earlier call to enif_inspect_binary. Solution: Emasculate writable binary at enif_inspect_binary. There are room for optimizations here as we now do an unconditional emasculation even though enif_make_copy is not called later in the NIF.
2014-08-29Merge branch 'rickard/runnable-trace-ooo-bug/OTP-12105' into maintRickard Green
* rickard/runnable-trace-ooo-bug/OTP-12105: Fix busy_port_SUITE:io_to_busy test-case Ensure "runnable port" trace messages are not sent out of order Ensure "runnable proc" trace messages are not sent out of order
2014-08-28add enif_schedule_nif() to NIF APISteve Vinoski
In the #erlang IRC channel Anthony Ramine once mentioned the idea of allowing a NIF to use an emulator trap, similar to a BIF trap, to schedule another NIF for execution. This is exactly how dirty NIFs were implemented for Erlang/OTP 17.0, so this commit refactors and generalizes that dirty NIF code to support a new enif_schedule_nif() API function. The enif_schedule_nif() function allows a long-running NIF to be broken into separate NIF invocations. The NIF first executes part of the long-running task, then calls enif_schedule_nif() to schedule a NIF for later execution to continue the task. Any number of NIFs can be scheduled in this manner, one after another. Since the emulator regains control between invocations, this helps avoid problems caused by native code tying up scheduler threads for too long. The enif_schedule_nif() function also replaces the original experimental dirty NIF API. The function takes a flags parameter that a caller can use to indicate the NIF should be scheduled onto either a dirty CPU scheduler thread, a dirty I/O scheduler thread, or scheduled as a regular NIF on a regular scheduler thread. With this change, the original experimental enif_schedule_dirty_nif(), enif_schedule_dirty_nif_finalizer() and enif_dirty_nif_finalizer() API functions are no longer needed and have been removed. Explicit scheduling of a dirty NIF finalization function is no longer necessary; if an application wants similar functionality, it can have a dirty NIF just invoke enif_schedule_nif() to schedule a non-dirty NIF to complete its task. Lift the restriction that dirty NIFs can't call enif_make_badarg() to raise an exception. This was a problem with the original dirty NIF API because it forced developers to get and check all incoming arguments in a regular NIF, and then schedule the dirty NIF which then had to get all the arguments again. Now, the argument checking can be done in the dirty NIF and it can call enif_make_badarg() itself to flag incorrect arguments. Extend the ErlNifFunc struct with a new flags field that allows NIFs to be declared as dirty. The default value for this field is 0, indicating a regular NIF, so it's backwards compatible with all existing statically initialized ErlNifFunc struct instances, and so such instances require no code changes. Defining the flags field with a value of ERL_NIF_DIRTY_JOB_CPU_BOUND indicates that the NIF should execute on a dirty CPU scheduler thread, or defining it with a value of ERL_NIF_DIRTY_JOB_IO_BOUND indicates that the NIF should execute on a dirty I/O scheduler thread. Any other flags field value causes a NIF library loading error. Extend the ErlNifEntry struct with a new options field that indicates whether a NIF library was built with support for optional features such as dirty NIFs. When a NIF library is loaded, the runtime checks the options field to ensure compatibility. If a NIF library built with dirty NIF support is loaded into a runtime that does not support dirty NIFs, and the library defines one or more ErlNifFunc entries with non-zero flags fields indicating dirty NIFs, a NIF library loading error results. There is no error if a NIF library built with dirty NIF support is loaded into a runtime that does not support dirty NIFs but the library does not have any dirty NIFs. It is also not an error if a library without dirty NIF support is loaded into a runtime built with dirty NIF support. Add documentation and tests for enif_schedule_nif().
2014-08-22Fix busy_port_SUITE:io_to_busy test-caseRickard Green
2014-08-21Merge branch 'egil/proc_lib-optimizations/OTP-12060' into maintBjörn-Egil Dahlberg
* egil/proc_lib-optimizations/OTP-12060: stdlib: Update dependencies to erts-6.2 erts: Update preloaded erlang.beam stdlib: Use erlang:fun_info_mfa/1 in proc_lib:init_p/3 erts: Test erlang:fun_info_mfa/1 erts: Introduce erlang:fun_info_mfa/1
2014-08-11Merge branch 'rickard/nosuspend-bug/OTP-12082' into maintRickard Green
* rickard/nosuspend-bug/OTP-12082: Fix build of test port program Update Makefile.src Add async_ports test Fix abort of nosuspend-tasks in erts_port_task_schedule()
2014-08-06Fix build of test port programRickard Green
2014-08-06erts: Fix tc and docs after {fd,FD} bind changeLukas Larsson
The sha of the original change is 52810718b
2014-08-05Update Makefile.srckudryashov-sv
2014-08-05Add async_ports testSergey Kudryashov
2014-07-11erts: Test erlang:fun_info_mfa/1Björn-Egil Dahlberg
2014-06-06Merge branch 'rickard/binary_to_term_error/OTP-11931' into maintRickard Green
* rickard/binary_to_term_error/OTP-11931: Replace erlang:binary_to_term() Erlang wrappers Conflicts: erts/preloaded/ebin/erts_internal.beam
2014-06-06Merge branch 'rickard/yielding-binary-list-conversions/OTP-11888' into maintRickard Green
* rickard/yielding-binary-list-conversions/OTP-11888: Add test-case comparing old and new implementations Make binary BIFs converting from lists yield on large input Make binary BIFs converting to lists yield on large input
2014-06-05Replace erlang:binary_to_term() Erlang wrappersRickard Green
Replace the 'erlang:binary_to_term/1' and 'erlang:binary_to_term/2' Erlang wrappers taking care of failure after yield with management of this in the hidden yield BIF.
2014-06-05Merge branch 'etsukata/system_info_tolerant_timeofday/OTP-11970' into maintLukas Larsson
* etsukata/system_info_tolerant_timeofday/OTP-11970: Add erlang:system_info(tolerant_timeofday)
2014-06-05Merge branch 'lukas/erts/fix_trace_on_registered_procs/OTP-11968' into maintLukas Larsson
* lukas/erts/fix_trace_on_registered_procs/OTP-11968: erts: tracing on send now works for registered processes
2014-06-05erts: tracing on send now works for registered processesLukas Larsson
This bug was introduced in R16B. Testcases have been adapted to verify the correct behaviour.
2014-05-22Add test-case comparing old and new implementationsRickard Green
2014-05-22Make binary BIFs converting from lists yield on large inputRickard Green
- erlang:list_to_binary/1 - erlang:iolist_to_binary/1 - erlang:list_to_bitstring/1 - binary:list_to_bin/1
2014-05-22Make binary BIFs converting to lists yield on large inputRickard Green
- erlang:binary_to_list/1 - erlang:binary_to_list/3 - erlang:bitstring_to_list/1
2014-04-30erts: Add testcase for erts_debug:size/1 Map termsBjörn-Egil Dahlberg
2014-04-29Fix timeout for match_spec_SUITE:otp_9422Sverker Eriksson
Must receive 'abort' even after loop_runner has finished.
2014-04-28Add erlang:system_info(tolerant_timeofday)Eiichi Tsukata
Add erlang:system_info(tolerant_timeofday), an API to check whether compensation for sudden changes of system time is enabled or not.
2014-04-02Merge branch 'egil/test-cuddling'Björn-Egil Dahlberg
* egil/test-cuddling: tools: Refactor testcase emulator: Increase timetrap timeout for binary_SUITE emulator: Increase timetrap timeout for match_spec_SUITE
2014-04-01erts: Make binary_SUITE:deep less stressfulSverker Eriksson
as it times out on some machines. Not much point in redoing with lower input reductions when the terms are so big we will trap several times anyway.
2014-04-01emulator: Increase timetrap timeout for binary_SUITEBjörn-Egil Dahlberg
2014-04-01emulator: Increase timetrap timeout for match_spec_SUITEBjörn-Egil Dahlberg
2014-03-27erts: Fix bug in test case port_SUITE:otp_5119Sverker Eriksson
2014-03-26erts: Reduce runtime of test port_SUITE:close_deaf_portSverker Eriksson
as it fails with timeout sometimes.
2014-03-21Introduce minimum allowed major driver and nif versions on loadRickard Green
2014-03-20Merge branch 'vinoski/ds-enif-send'Rickard Green
* vinoski/ds-enif-send: enable enif_send to work from a dirty scheduler
2014-03-20Merge branch 'bjorn/erts/fix-lingering-tracer'Björn Gustavsson
* bjorn/erts/fix-lingering-tracer: Teach the call_time trace to notice when the trace dies (non-SMP system)
2014-03-20Teach the call_time trace to notice when the trace dies (non-SMP system)Björn Gustavsson
The call_time trace is a special kind of tracing that requires a tracer process just like ordinary call trace, but it never actually sends anything to the tracer. It merely use the existence of a trace process (and call trace flags) as an indication that call_time tracing is active for the process. If the tracer dies in a non-SMP run-time system, processes with call_time tracing would not notice that the tracer had died. Furthermore, if the set_on_spawn flag was active, the dead tracer could be propagaged to newly spawned processes. Before accumulating trace information in a non-SMP system, always validate the tracer process. (In an SMP system, a reference to a dead tracer will be cleared away each time a process is scheduled.) While we could put all of the new code beam_bp.c, we have chosen to make a function call from beam_bp.c to a function in erl_trace.c for clarity's sake and to ease further maintenance. In the future, we might want to handle tracing in more similar ways in the SMP and non-SMP system.
2014-03-14Merge branch 'sverk/maps-erl_interface'Sverker Eriksson
* sverk/maps-erl_interface: erts: Add distribution capability flag for maps DFLAG_MAP_TAG erts: Change external format for maps erts: Document external format for maps (MAP_EXT) erl_interface: Add test for ei_skip_term of container terms erl_interface: Add map support in ei_skip_term erl_interface: Fix mem leak in ei_decode_encode_test erl_interface: test decode/encode of maps erl_interface: Add ei encode/decode for maps erl_interface: test decode_encode of tuples and lists erl_interface: refactor ei_decode_encode_test.c
2014-03-14erts: Change external format for mapsSverker Eriksson
to be: 116,Arity, K1,V1,K2,V2,...,Kn,Vn instead of: 116,Arity, K1,K2,...,Kn, V1,V2,....,Vn We think this will be better for future internal map structures like HAMT. Would be bad if we need to iterate twice over HAMT in term_to_binary, one for keys and one for values.
2014-03-13Merge branch 'sverk/valgrind-leaks'Sverker Eriksson
* sverk/valgrind-leaks: erts: Suppress false leak in hipe_thread_signal_init erts: Fix leak in nif_SUITE:resource_takeover (again)
2014-03-10enable enif_send to work from a dirty schedulerSteve Vinoski
2014-02-28erts: Fix leak in nif_SUITE:resource_takeover (again)Sverker Eriksson
2014-02-27erts: Fix Map cmp exact equal of an empty mapBjörn-Egil Dahlberg
The expression, #{} =:= M where M was any Map, would always result in 'true'. This commit fixes this issue by first comparing sizes for both terms and then checking for size zero.
2014-02-24Merge branch 'lukas/erts/float_encoding/OTP-11738'Lukas Larsson
* lukas/erts/float_encoding/OTP-11738: erts: Set default external enc to use new float scheme
2014-02-24Merge branch 'vinoski/ds2'Rickard Green
* vinoski/ds2: further enhancements for dirty schedulers allow optional whitespace in dirty scheduler erl options
2014-02-24further enhancements for dirty schedulersSteve Vinoski
Add support for setting the number of dirty CPU schedulers online via erlang:system_flag/2. Assuming the emulator is built with dirty schedulers enabled, the number of dirty CPU schedulers online may not be less than 1, nor greater than the number of dirty CPU schedulers available, nor greater than the number of normal schedulers online. Dirty CPU scheduler threads that are taken offline via system_flag/2 are suspended. The number of dirty CPU schedulers online may be adjusted independently of the number of normal schedulers online, but if system_flag/2 is used to set the number of normal schedulers online to a value less than the current number of normal schedulers online, the number of dirty CPU schedulers online is decreased proportionally. Likewise, if the number of normal schedulers online is increased, the number of dirty CPU schedulers online is increased proportionally. For example, if 8 normal schedulers and 4 dirty CPU schedulers are online, and system_flag/2 is called to set the number of normal schedulers online to 4, the number of dirty CPU schedulers online is also decreased by half, to 2. Subsequently setting the number of normal schedulers online back to 8 also sets the number of dirty CPU schedulers online back to 4. Augment the system_flag/2 documentation in the erlang man page to explain this relationship between schedulers_online and dirty_cpu_schedulers_online. Also ensure that all dirty CPU and I/O schedulers are suspended when multi-scheduling is blocked via system_flag/2, and brought back online when multi-scheduling is unblocked. Add Rickard Green's rewritten check_enqueue_in_prio_queue() function that inspects process state more thoroughly to determine if to enqueue it and if so on what queue, including dirty queues when appropriate. Make sure dirty NIF jobs do not trigger erlang:system_monitor long_schedule messages. Add more dirty scheduler testing to the scheduler test suite. Remove the erts_no_dirty_cpu_schedulers_online global variable, since it's no longer needed. Execute dirty NIFs on a normal scheduler thread while multi-scheduling blocking is in effect. Evacuate any dirty jobs residing in the dirty run queues over to a normal run queue when multi-scheduling is blocked. Allow dirty schedulers to execute aux work. Set the dirty run queues halt_in_progress flag when halting the normal schedulers. Change dirty scheduler numbers to a structure including both scheduler number and type, either dirty CPU or dirty I/O. Add some assertions to ensure that dirty CPU schedulers operate only on dirty CPU scheduler process flags, and the same for dirty I/O schedulers.
2014-02-24erts: Set default external enc to use new float schemeLukas Larsson
This change was triggered by the OSE float printing function not working exactly the same way as linux/win32. But it is also a good one in general as it cuts size in more than half for floats.
2014-02-20erts: Fix memory leak in nif_SUITE:resource_takeoverSverker Eriksson
2014-02-19Merge branch 'sverk/test_server/openbsd-dynlink'Sverker Eriksson
* sverk/test_server/openbsd-dynlink: erts: Skip driver_SUITE:thr_free_drv for VM without threads erts: Fix driver_SUITE:otp_9302 for VM without threads test_server: Fix dynlib link command for openbsd