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path: root/erts/emulator/beam/erl_ptab.c
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2017-07-06Allow toggling lock counting at runtimeJohn Högberg
The implementation is still hidden behind ERTS_ENABLE_LOCK_COUNT, and all categories are still enabled by default, but the actual counting can be toggled at will. OTP-13170
2017-05-04Update copyright yearRaimo Niskanen
2017-02-15Merge branch 'fix-source-typos'Björn Gustavsson
* fix-source-typos: (25 commits) Fixed typos in system/doc Fixed typos in lib/xmerl Fixed typos in lib/wx Fixed typos in lib/stdlib Fixed typos in lib/snmp Fixed typos in lib/ssl Fixed typos in lib/ssh Fixed typos in PKCS-8.asn1 file Fixed typos in lib/parsetools Fixed typos in lib/orber Fixed typos in lib/mnesia Fixed typos in lib/megaco Fixed typos in lib/kernel Fixed typos in lib/jinterface Fixed typos in lib/inets Fixed typos in lib/hipe Fixed typos in lib/eunit Fixed typos in lib/erl_interface Fixed typos in lib/eldap Fixed typos in lib/edoc ...
2017-02-14erts: Add deallocation veto for magic destructorsSverker Eriksson
A magic destructor can return 0 and thereby take control and prolong the lifetime of a magic binary.
2017-02-14Fixed typos in ertsAndrew Dryga
2017-02-06Use magic refs in trapping processes()/ports() BIFsRickard Green
2016-03-15update copyright-yearHenrik Nord
2016-02-24erts: Change erl_exit into erts_exitSverker Eriksson
This is mostly a pure refactoring. Except for the buggy cases when calling erlang:halt() with a positive integer in the range -(INT_MIN+2) to -INT_MIN that got confused with ERTS_ABORT_EXIT, ERTS_DUMP_EXIT and ERTS_INTR_EXIT. Outcome OLD erl_exit(n, ) NEW erts_exit(n, ) ------- ------------------- ------------------------------------------- exit(Status) n = -Status <= 0 n = Status >= 0 crashdump+abort n > 0, ignore n n = ERTS_ERROR_EXIT < 0 The outcome of the old ERTS_ABORT_EXIT, ERTS_INTR_EXIT and ERTS_DUMP_EXIT are the same as before (even though their values have changed).
2015-06-18Change license text to APLv2Bruce Yinhe
2015-05-08Optimized timer implementationRickard Green
2014-12-10Use the new 64-bit atomic ops APIRickard Green
2014-02-24erts: Fix sys_msg_dispatcher assertLukas Larsson
Schedulers is too restrictive. Managed threads should be able to clean this up.
2013-08-07erts: Fix race in ptab that can cause PID mix-upsSverker Eriksson
Since: R16B01 Symptom: A spawned process may get the same PID as an existing process. The new process will "steal" the PID and make the old process unreachable through the PID. The problem also applies to port identities but has only been seen for processes. Conditions: SMP emulator with at least two scheduler threads. Rapid spawning and termination of a large number of processes. A small number of free slots in the process table will also increase the risk for this bug. Workaround: Use command line options "+P legacy" and "+Q legacy" Cause: The race happens if a process terminates and gets stalled while releasing its process table slot. The stall has to be so long (due to OS preemptive scheduling most probably) for other schedluer threads to consume all other free slots for newly spawn processes. Fix: Write invalid-markers in the free-pid-table and do atomic exhange operations in retry-loops to make sure each thread gets a unique PID.
2013-06-12Update copyright yearsBjörn-Egil Dahlberg
2013-06-10erts: Fix debug code in erts_ptab_test_next_id()Rickard Green
2013-05-17Introduce a better id allocation algorithm for PTabsRickard Green
2013-04-03Be less eager requesting wakeup for cleanup jobsRickard Green
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
2012-12-03Optimize management of port tasksRickard Green
2012-12-03Improve configuration of process and port tablesRickard Green
2012-12-03Remove R9 compatibility featuresRickard Green
2012-12-03Use ptab functionality also for portsRickard Green
2012-12-03Generalize process table implementationRickard Green