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2014-11-05Merge branch 'maint'Lukas Larsson
* maint: erts: Fix ub in list_to_integer and bignum div
2014-11-03Merge branch 'sverk/yielding-distr-send/OTP-12232'Sverker Eriksson
* sverk/yielding-distr-send/OTP-12232: erts: Add constant TERM_TO_BINARY_MEMCPY_FACTOR erts: Optimize some repeated calls to {E,W}STACK_PUSH erts: Yield in term_to_binary when encoding big maps erts: Remove unnecessary goto for fun encoding erts: Yield in term_to_binary while copying large binaries erts: Implement yielding for distributed send of large messages
2014-10-24Merge branch 'sverk/hipe-inline-reserve-trap-frame'Sverker Eriksson
* sverk/hipe-inline-reserve-trap-frame: erts: Extend usage of ASM macro to avoid including asm macros in C code erts: Make hipe_{un}reserve_beam_trap_frame INLINE
2014-10-24erts: Make hipe_{un}reserve_beam_trap_frame INLINESverker Eriksson
2014-09-22erts: Fix ub in list_to_integer and bignum divLukas Larsson
2014-09-04Merge branch 'maint'Sverker Eriksson
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.
2014-08-29erts: Implement yielding for distributed send of large messagesSverker Eriksson
Use same mechanism as term_to_binary to yield while encoding large messages for distributed send.
2014-08-21Merge branch 'maint'Lukas Larsson
* maint: Add number of entries to mnesia copy debug message Add thread index to allocator enomem dump slogan Add run queue index to process dump info Add missing error string to syslog logging in epmd Demote rare debug slogan of message discarding to debug build
2014-08-21Merge branch 'nox/reedr-logging/OTP-12115' into maintLukas Larsson
* nox/reedr-logging/OTP-12115: Add number of entries to mnesia copy debug message Add thread index to allocator enomem dump slogan Add run queue index to process dump info Add missing error string to syslog logging in epmd Demote rare debug slogan of message discarding to debug build
2014-08-14Merge branch 'bjorn/erts/export-bifs/OTP-12099'Björn Gustavsson
* bjorn/erts/export-bifs/OTP-12099: BIFs should be considered exported
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.
2014-05-12BIFs should be considered exportedBjörn Gustavsson
All BIFs now have stub functions and are exported. For example in the erlang module: -export([..., is_list/1, ...]). . . . is_list(_Term) -> erlang:nif_error(undefined). But erlang:function_exported(erlang, is_list, 1) returns false, which is weird. Change erlang:function_exported/3 to return true for BIFs.
2014-03-09Demote rare debug slogan of message discarding to debug buildRick Reed
2014-02-24Merge branch 'lukas/ose/master/OTP-11334'Lukas Larsson
* lukas/ose/master/OTP-11334: (71 commits) erts: Fix unix efile assert ose: Use -O2 when building ose: Expand OSE docs ose: Add dummy ttsl driver ose: Cleanup cleanup of mutex selection defines ose: Polish mmap configure checks ose: Add ose specific x-compile flags ose: Updating fd_driver and spawn_driver for OSE ose: Updating event and signal API for OSE ose: Cleanup of mutex selection defines win32: Compile erl_log.exe ose: Remove uneccesary define ose: Fix ssl configure test for osx erts: Fix sys_msg_dispatcher assert ose: Fix broken doc links ose: Thread priorities configurable from lmconf ose: Yielding the cpu is done "the OSE" way ose: Start using ppdata for tse key ose: Do not use spinlocks on OSE ose: Fix support for crypto ... Conflicts: lib/crypto/c_src/crypto.c
2014-02-24Added support for ENEA OSELukas Larsson
This port has support for both non-smp and smp. It contains a new way to do io checking in which erts_poll_wait receives the payload of the polled entity. This has implications for all linked-in drivers.
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.
2014-01-29erts: Add BIF erts_internal:cmp_term/2Björn-Egil Dahlberg
Compares terms where integer() < float().
2014-01-15fix system_flag deprecation warningsSteve Vinoski
Passing cpu_topology or scheduler_bind_type to erlang:system_flag/2 results in an error report warning that the argument is deprecated and is slated for removal in erts-5.10/OTP-R16. Since we're already past that version and no substitute approach has yet been decided for these features, keep the deprecation warning but bump the removal version it mentions up to Erlang 18.
2013-12-07Merge branch 'rickard/garbage_collect/OTP-11388'Rickard Green
* rickard/garbage_collect/OTP-11388: Parallel check_process_code when code_server purge a module Functionality for disabling garbage collection Use asynchronous check_process_code in code_parallel_SUITE Execution of system tasks in context of another process Conflicts: bootstrap/lib/kernel/ebin/hipe_unified_loader.beam erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/erts_internal.beam
2013-11-26Ensure exit signal due to link precede port BIF returnRickard Green
2013-11-18Execution of system tasks in context of another processRickard Green
A process requesting a system task to be executed in the context of another process will be notified by a message when the task has executed. This message will be on the form: {RequestType, RequestId, Pid, Result}. A process requesting a system task to be executed can set priority on the system task. The requester typically set the same priority on the task as its own process priority, and by this avoiding priority inversion. A request for execution of a system task is made by calling the statically linked in NIF erts_internal:request_system_task(Pid, Prio, Request). This is an undocumented ERTS internal function that should remain so. It should *only* be called from BIF implementations. Currently defined system tasks are: * garbage_collect * check_process_code Further system tasks can and will be implemented in the future. The erlang:garbage_collect/[1,2] and erlang:check_process_code/[2,3] BIFs are now implemented using system tasks. Both the 'garbage_collect' and the 'check_process_code' operations perform or may perform garbage_collections. By doing these via the system task functionality all garbage collect operations in the system will be performed solely in the context of the process being garbage collected. This makes it possible to later implement functionality for disabling garbage collection of a process over context switches. Newly introduced BIFs: * erlang:garbage_collect/2 - The new second argument is an option list. Introduced option: * {async, RequestId} - making it possible for users to issue asynchronous garbage collect requests. * erlang:check_process_code/3 - The new third argument is an option list. Introduced options: * {async, RequestId} - making it possible for users to issue asynchronous check process code requests. * {allow_gc, boolean()} - making it possible to issue requests that aren't allowed to garbage collect (operation will abort if gc should be needed). These options have been introduced as a preparation for parallelization of check_process_code operations when the code_server is about to purge a module.
2013-07-30Change default of erlang:halt/2 to the documentedPatrik Nyblom
Bug reported by Jose Valim on the erlang-bugs mailing list: erlang:halt(0,[]) does not flush as advertised in the documentation. Should be the same as erlang:halt(0,[{flush,true}]), but is in fact the same as erlang:halt(0,[{flush,false}]).
2013-03-12erts: Refactor erlang:insert_element/3 for clarityBjörn-Egil Dahlberg
2013-03-12erts: Fix copy error in erlang:delete_element/2Björn-Egil Dahlberg
Off-by-one error in element copy.
2013-02-14Merge branch 'rickard/erl_drv_consume_timeslice/OTP-10810'Rickard Green
* rickard/erl_drv_consume_timeslice/OTP-10810: Implement erl_drv_consume_timeslice()
2013-02-14Add float_to_binary and binary_to_floatLukas Larsson
2013-02-14Add new binary conversion bifsLukas Larsson
Added: binary_to_integer/1,2, integer_to_binary/1,2
2013-02-13Implement erl_drv_consume_timeslice()Rickard Green
2013-02-07float_to_list/2 changed rounding and cosmetic cleanupSerge Aleynikov
Changed rouding to round half-way up instead of down. Cosmetic cleanup and error handling of additional edge cases.
2013-01-28Merge branch 'sverk/enc_atom-opt'Sverker Eriksson
* sverk/enc_atom-opt: erts: Optimize atom encoding to use memcpy for pure ascii erts: Refactor erts_atom_get to use ErtsAtomEncoding
2013-01-25Merge branch 'pan/fix-compiler-warnings-clang-and-new-gcc'Patrik Nyblom
* pan/fix-compiler-warnings-clang-and-new-gcc: Fix compiler warnings from GCC 4.7.1 on ARCH Linux Fix clang compiler warnings on FreeBSD in erts
2013-01-25Update copyright yearsBjörn-Egil Dahlberg
2013-01-25erts: Refactor erts_atom_get to use ErtsAtomEncodingSverker Eriksson
instead of 'is_latin1' boolean argument.
2013-01-23Merge branch 'sverk/r16/utf8-atoms'Sverker Eriksson
* sverk/r16/utf8-atoms: erl_interface: Fix bug when transcoding atoms from and to UTF8 erl_interface: Changed erlang_char_encoding interface erts: Testcase doing unicode atom printout with ~w erl_interface: even more utf8 atom stuff erts: Fix bug in analyze_utf8 causing faulty latin1 detection Add UTF-8 node name support for epmd workaround... Fix merge conflict with hasse UTF-8 atom documentation test case erl_interface: utf8 atoms continued Add utf8 atom distribution test cases atom fixes for NIFs and atom_to_binary UTF-8 support for distribution Implement UTF-8 atom support for jinterface erl_interface: Enable decode of unicode atoms stdlib: Fix printing of unicode atoms erts: Change internal representation of atoms to utf8 erts: Refactor rename DFLAG(S)_INTERNAL_TAGS for conformity Conflicts: erts/emulator/beam/io.c OTP-10753
2013-01-23Fix clang compiler warnings on FreeBSD in ertsPatrik Nyblom
The following are deliberately left, as I have only a list of compiler warnings and no system to test on: hipe/hipe_x86_signal.c:264:5: warning: no previous prototype for function '_sigaction' [-Wmissing-prototypes] int __SIGACTION(int signum, const struct sigaction *act, struct sigaction *oldact) ^ hipe/hipe_x86_signal.c:222:21: note: expanded from macro '__SIGACTION' ^ 1 warning generated. sys/unix/sys_float.c:835:16: warning: declaration of 'struct exception' will not be visible outside of this function [-Wvisibility] matherr(struct exception *exc) ^ sys/unix/sys_float.c:835:1: warning: no previous prototype for function 'matherr' [-Wmissing-prototypes] matherr(struct exception *exc) ^ 2 warnings generated. drivers/unix/unix_efile.c:1504:11: warning: implicit declaration of function 'sendfile' [-Wimplicit-function-declaration] retval = sendfile(in_fd, out_fd, *offset, SENDFILE_CHUNK_SIZE, ^ 1 warning generated.
2013-01-21Text representation of a float formatted using given options.Serge Aleynikov
This BIF solves a problem of float_to_list/1 that doesn't allow specifying the number of digits after the decimal point when formatting floats. float_to_list(Float, Options) -> string() Float = float() Options = [Option] Option = {decimals, Decimals::0..249} | {scientific, Decimals::0..249} | compact Returns a string which corresponds to the text representation of a `Float` formatted using given options. When decimals option is specified the returned value will contain at most `Decimals` number of digits past the decimal point. When `compact` option is provided the trailing zeros at the end of the list are truncated (this option is only meaningful together with the `decimals` option). When `scientific` option is provided, the float will be formatted using scientific notation with `Decimals` digits of precision. If `Options` is `[]` the function behaves like `float_to_list/1`. When using `decimals` option and the number doesn't fit in the static internal buffer of 256 bytes the function throws `badarg`.
2013-01-16UTF-8 support for distributionRickard Green
2013-01-08erts: Change internal representation of atoms to utf8Sverker Eriksson
2012-12-14Add insert_element/3 and delete_element/2Björn-Egil Dahlberg
* erlang:insert_element/3 - extend a tuple at an index * erlang:delete_element/2 - remove an element at an index
2012-12-12Merge branch 'egil/enforce-tuple-specification-size/OTP-10633'Björn-Egil Dahlberg
* egil/enforce-tuple-specification-size/OTP-10633: erts: Use memcpy instead of while in setelement/3 test: Refactor away ?line macro in tuple_SUITE erts: Enforce tuple max size on BIFs erts: Define max tuple size to 24 bits
2012-12-07Merge branch 'rickard/port-optimizations/OTP-10336' into ↵Rickard Green
rickard/r16/port-optimizations/OTP-10336 * rickard/port-optimizations/OTP-10336: Change annotate level for emacs-22 in cerl Update etp-commands Add documentation on communication in Erlang Add support for busy port message queue Add driver callback epilogue Implement true asynchronous signaling between processes and ports Add erl_drv_[send|output]_term Move busy port flag Use rwlock for driver list Optimize management of port tasks Improve configuration of process and port tables Remove R9 compatibility features Use ptab functionality also for ports Prepare for use of ptab functionality also for ports Atomic port state Generalize process table implementation Implement functionality for delaying thread progress from unmanaged threads Conflicts: erts/doc/src/erl_driver.xml erts/doc/src/erlang.xml erts/emulator/beam/beam_bif_load.c erts/emulator/beam/beam_bp.c erts/emulator/beam/beam_emu.c erts/emulator/beam/bif.c erts/emulator/beam/copy.c erts/emulator/beam/erl_alloc.c erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_bif_port.c erts/emulator/beam/erl_bif_trace.c erts/emulator/beam/erl_init.c erts/emulator/beam/erl_message.c erts/emulator/beam/erl_port_task.c erts/emulator/beam/erl_process.c erts/emulator/beam/erl_process.h erts/emulator/beam/erl_process_lock.c erts/emulator/beam/erl_trace.c erts/emulator/beam/export.h erts/emulator/beam/global.h erts/emulator/beam/io.c erts/emulator/sys/unix/sys.c erts/emulator/sys/vxworks/sys.c erts/emulator/test/port_SUITE.erl erts/etc/unix/cerl.src erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/prim_inet.beam erts/preloaded/src/prim_inet.erl lib/hipe/cerl/erl_bif_types.erl lib/kernel/doc/src/inet.xml lib/kernel/src/inet.erl
2012-12-07Implement true asynchronous signaling between processes and portsRickard Green
2012-12-03Move busy port flagRickard Green
2012-12-03Use ptab functionality also for portsRickard Green
2012-12-03Prepare for use of ptab functionality also for portsRickard Green
2012-12-03Atomic port stateRickard Green
2012-12-03Generalize process table implementationRickard Green
2012-11-27erts: Use memcpy instead of while in setelement/3Björn-Egil Dahlberg
* Measurements suggests that memcpy is a bit faster for small tuples and ~50% faster for large tuples. (Linux kernel-3.2.0).