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path: root/erts/preloaded/ebin/prim_file.beam
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2014-12-09Update preloaded modulesMarcus Arendt
2014-09-12Update preloaded modulesHenrik Nord
2014-06-18Update preloaded modulesMagnus Lidén
2014-04-01Update preloaded modulesBjörn-Egil Dahlberg
2014-02-26Update preloaded and primary bootstrapRickard Green
2014-01-28Merge branch 'lukas/erts/sendfile_no_async_pool/OTP-11639'Lukas Larsson
* lukas/erts/sendfile_no_async_pool/OTP-11639: erts/kernel: sendfile no longer uses async threads
2014-01-27erts/kernel: sendfile no longer uses async threadsLukas Larsson
This has been done because a slow client attack is possible if the async thread pool is used. The scenario is: Client does a request for a file and then slowly receives the file one byte at a time. This will eventually fill the async thread pool with blocking sendfile operations and thus starving the vm of all file operations. If you still want to use the async threads pool for sendfile an option to enable it has been introduced.
2013-12-09Update preloaded modulesMagnus Lidén
2013-12-09Update preloaded modulesMagnus Lidén
2013-12-06Update preloaded modulesMagnus Lidén
2013-11-29Merge branch 'sv/file-osync/OTP-11498'Lukas Larsson
* sv/file-osync/OTP-11498: Add sync option to file:open/2 Conflicts: erts/preloaded/ebin/prim_file.beam
2013-11-15Add sync option to file:open/2Joseph Blomstedt
The sync option adds the POSIX O_SYNC flag to the open system call on platforms that support the flag or its equivalent, e.g., FILE_FLAG_WRITE_THROUGH on Windows. For platforms that don't support it, file:open/2 returns {error, enotsup} if the sync option is passed in. The semantics of O_SYNC are platform-specific. For example, not all platforms guarantee that all file metadata are written to the disk along with the file data when the flag is in effect. This issue is noted in the documentation this commit adds for the sync option. Add a test for the sync option. Note however that the underlying OS semantics for O_SYNC can't be tested automatically in any practical way, so the test assumes the OS does the right thing with the flag when present. For manual verification, dtruss on OS X and strace on Linux were both run against beam processes to watch calls to open(), and file:open/2 was called in Erlang shells to open files for writing, both with and without the sync option. Both the dtruss output and the strace output showed that the O_SYNC flag was present in the open() calls when sync was specified and was clear when sync was not specified.
2013-09-13Update preloaded modulesMagnus Lidén
2013-06-12Update preloaded modulesBjörn-Egil Dahlberg
2013-05-06Update preloaded filesHans Bolinder
2013-04-10Merge branch 'maint'Fredrik Gustafsson
Conflicts: erts/preloaded/ebin/erl_prim_loader.beam erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/erts_internal.beam erts/preloaded/ebin/init.beam erts/preloaded/ebin/otp_ring0.beam erts/preloaded/ebin/prim_file.beam erts/preloaded/ebin/prim_inet.beam erts/preloaded/ebin/prim_zip.beam erts/preloaded/ebin/zlib.beam
2013-04-10Update preloaded modulesFredrik Gustafsson
2013-04-04Update preloaded modulesFredrik Gustafsson
2013-04-04Update preloaded modulesFredrik Gustafsson
2013-02-22Update preloaded modulesBjörn-Egil Dahlberg
2013-02-20prim_file: Fix error return from prim_file:list_dir/1Björn Gustavsson
When the run-time system was started with +fnue, the error tuple indicating a non-translatable filename was added as a non-proper list tail inside an {ok,Files} term.
2013-02-18Fix broken prim_file:list_dir_all/1Björn Gustavsson
6d516de001dde82c02fe050db8e3aab47914fa90 added prim_file:list_dir_all/1. Unfortunately, only the first element in the list would be handled as intended.
2013-02-11prim_file: Add list_dir_all() and read_link_all()Björn Gustavsson
2013-02-11Make prim_file skip invalid filenames in unicode modePatrik Nyblom
The fix affects list_dir and read_link. Raw filenames are now never produced, just consumed even if +fnu or +fna is used on Linux etc. This also adds the options to get error return or error handler warning messages with +fn{u|a}{i|w|e} as an option to erl. This is still not documented and there needs to be other versions of read_dir and read_link to facilitate reading of all types of filenames and links. A check that we will not change to an invalid directory is also needed.
2013-01-25Update preloaded modulesSiri Hansen
2013-01-25Update preloadedHans Bolinder
2013-01-10Update preloaded prim_file.beamBjörn-Egil Dahlberg
2012-12-17Update preloaded modulesBjörn-Egil Dahlberg
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
2012-07-25Update preloaded modulesBjörn-Egil Dahlberg
2012-07-19Update preloaded erl_prim_loader and prim_fileBjörn-Egil Dahlberg
2012-03-22Merge branch 'maint'Patrik Nyblom
Conflicts: erts/emulator/beam/beam_emu.c erts/emulator/beam/bif.tab erts/preloaded/ebin/prim_file.beam lib/hipe/cerl/erl_bif_types.erl
2012-03-22Remove code causing dialyzer warning from prim_filePatrik Nyblom
2012-03-22Rename dyntrace BIFs to more suiting namesPatrik Nyblom
2012-03-22Correct some errors in the user tag spreadingPatrik Nyblom
2012-03-22Add user tag spreading functionality to VM and use in filePatrik Nyblom
User tags in a dynamic trace enabled VM are spread throughout the system in the same way as seq_trace tokens. This is used by the file module and various other modules to get hold of the tag from the user process without changing the protocol.
2012-03-22Update dtrace for changes in R15Björn-Egil Dahlberg
2012-03-22Add DTrace support for OS X, Solaris, and Linux (via SystemTap), 4/4Scott Lystig Fritchie
Add probes to (mostly) the efile_drv.c driver and other file I/O-related source files.
2012-03-14Update preloaded modulesBjörn-Egil Dahlberg
2012-01-27Move types and specs from erl_bif_types.erl to modulesHans Bolinder
2011-12-12Update preloaded modulesBjörn-Egil Dahlberg
OTP-9810 OTP-9812 OTP-9813 OTP-9814 OTP-9818
2011-12-09Update preloaded modulesBjörn-Egil Dahlberg
2011-12-08Update prim_file.beam and prim_zip.beamBjörn-Egil Dahlberg
2011-12-02Update preloaded modulesLukas Larsson
2011-11-13Merge branch 'rickard/alloc-opt/OTP-7775'Rickard Green
* rickard/alloc-opt/OTP-7775: Optimize memory allocation Conflicts: erts/aclocal.m4 erts/emulator/hipe/hipe_bif_list.m4 erts/preloaded/ebin/erl_prim_loader.beam erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/init.beam erts/preloaded/ebin/otp_ring0.beam erts/preloaded/ebin/prim_file.beam erts/preloaded/ebin/prim_inet.beam erts/preloaded/ebin/prim_zip.beam erts/preloaded/ebin/zlib.beam
2011-11-13Optimize memory allocationRickard Green
A number of memory allocation optimizations have been implemented. Most optimizations reduce contention caused by synchronization between threads during allocation and deallocation of memory. Most notably: * Synchronization of memory management in scheduler specific allocator instances has been rewritten to use lock-free synchronization. * Synchronization of memory management in scheduler specific pre-allocators has been rewritten to use lock-free synchronization. * The 'mseg_alloc' memory segment allocator now use scheduler specific instances instead of one instance. Apart from reducing contention this also ensures that memory allocators always create memory segments on the local NUMA node on a NUMA system.
2011-06-21Update preloaded modulesPatrik Nyblom
2011-06-08Update preloaded prim_file.beamBjörn-Egil Dahlberg
2011-06-08Update preloaded moduleRaimo Niskanen
2011-05-20Update preloaded modulesBjörn-Egil Dahlberg
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