aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam/erl_port.h
AgeCommit message (Collapse)Author
2015-12-15erts: Create forker process for spawn driverLukas Larsson
Instead of forking from the beam process, we create a separate process in which all forks are done. This has several advantages: 1) performance: * don't have to close all fd's in the world * fork only has to copy stuff from a small process * work is done in a completely seperate process * a 3x performance increase has been measured, can be made even greater (10x) if we cache the environment in child setup 2) stability * the exec is done in another process than beam, which means that if the file that we exec to is on an nfs that is not available right now we will not block a scheduler until the nfs returns. 3) simplicity * don't have to deal with SIGCHLD in the erts Unfortunately, this solution also implies some badness. 1) There will always be a seperate process running together with beam on unix. This could be confusing and undesirable. 2) We have to transfer the entire environment to child_setup for each command. OTP-13088
2015-12-15erts: Add support for asynchronous open_portLukas Larsson
OTP-13086
2015-06-18Change license text to APLv2Bruce Yinhe
2015-06-17Save IO bytes in scheduler specific dataRickard Green
2015-05-08Optimized timer implementationRickard Green
2013-05-06Only verify not busy for erlang:send(Port, Msg, [nosuspend]) until scheduledRickard Green
2013-04-29Do not treat port_set_data/port_get_data as signalsRickard Green
2013-02-25Set default max ports on win32 to 8192Lukas Larsson
2013-02-22Update copyright yearsBjörn-Egil Dahlberg
2013-02-13Implement erl_drv_consume_timeslice()Rickard Green
2013-02-13Fix driver port accessesRickard Green
2013-01-23Bump reductions also for immediate driver callsRickard Green
2012-12-17Fix driver_monitor_process() ASSERTRickard 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
2012-12-07Add support for busy port message queueRickard Green
2012-12-07Add driver callback epilogueRickard Green
2012-12-07Implement true asynchronous signaling between processes and portsRickard Green
2012-12-03Add erl_drv_[send|output]_termRickard Green
2012-12-03Move busy port flagRickard Green
2012-12-03Optimize management of port tasksRickard Green
2012-12-03Improve configuration of process and port tablesRickard Green
2012-12-03Use ptab functionality also for portsRickard Green
2012-12-03Prepare for use of ptab functionality also for portsRickard Green