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2014-02-24erts: Fix unix efile assertLukas Larsson
If writev return an error (eg ENOSPC) we do not want to abort here but instead propagate upwards into erlang.
2014-02-24ose: efile driver updates.Jonas Karlsson
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.
2013-09-12Remove ^L characters hidden randomly in the code. Not those used in text ↵Pierre Fenoll
files as delimiters. While working on a tool that processes Erlang code and testing it against this repo, I found out about those little sneaky 0xff. I thought it may be of help to other people build such tools to remove non-conforming-to-standard characters.
2013-06-12Update copyright yearsBjörn-Egil Dahlberg
2013-05-14Properly guard WIDE_TAG use with HAVE_WCWIDTH in ttsl_drvAnthony Ramine
2013-05-08Merge branch 'nox/wide-chars/OTP-11088' into maintFredrik Gustafsson
* nox/wide-chars/OTP-11088: Support wide characters in the shell through wcwidth() Fix bogus DEBUGLOG() incantations in ttsl_drv
2013-04-27Support wide characters in the shell through wcwidth()Anthony Ramine
There is one remaining bug where ttsl_drv's state ends up inconsistent with the terminal own state; when a wide character is entered on the last column of the terminal. Reported-by: Loïc Hoguin
2013-04-27Fix bogus DEBUGLOG() incantations in ttsl_drvAnthony Ramine
2013-04-22Fix src/dest overlap in ttsl driverLukas Larsson
2013-04-21fix valgrind error in erts/emulator/drivers/unix/ttsl_drv.cSteve Vinoski
Running some valgrind memory checking showed the error below: ==18040== Thread 6: ==18040== Source and destination overlap in memcpy(0xf3f3f04, 0xf3f3f08, 52) ==18040== at 0x4C2CFA0: memcpy@@GLIBC_2.14 (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==18040== by 0x5CF527: del_chars (ttsl_drv.c:845) ==18040== by 0x5CED5E: ttysl_from_erlang (ttsl_drv.c:658) ==18040== by 0x4982E3: erts_write_to_port (io.c:1235) ==18040== by 0x49A2BD: erts_port_command (io.c:2223) ==18040== by 0x48C054: do_send (bif.c:1962) ==18040== by 0x48CB6E: erl_send (bif.c:2162) ==18040== by 0x566599: process_main (beam_emu.c:1665) ==18040== by 0x4B1A95: sched_thread_func (erl_process.c:4834) ==18040== by 0x6075E2: thr_wrapper (ethread.c:106) ==18040== by 0x5560E99: start_thread (pthread_create.c:308) This occurred on Linux using R15B01 while the shell was emitting a prompt, but the same problem is still present in R16B. Change the memcpy on line 845 of ttsl_drv.c to memmove as valgrind suggests. After the change, verify with valgrind that the error no longer occurs.
2013-03-04erts: Fix void * arithmeticBjörn-Egil Dahlberg
2013-01-25Update copyright yearsBjörn-Egil Dahlberg
2013-01-11Merge branch 'fdm/file-allocate/OTP-10680'Björn-Egil Dahlberg
* fdm/file-allocate/OTP-10680: Update preloaded prim_file.beam erts: Fix xcomp configure for fallocate Add file:allocate/3 operation
2013-01-10Merge branch 'pn/ansi-console/OTP-10678'Björn-Egil Dahlberg
* pn/ansi-console/OTP-10678: Support ANSI in the console
2013-01-09Add file:allocate/3 operationFilipe David Manana
This operation allows pre-allocation of space for files. It succeeds only on systems that support such operation. The POSIX standard defines the optional system call posix_fallocate() to implement this feature. However, some systems implement more specific functions to accomplish the same operation. On Linux, if the more specific function fallocate() is implemented, it is used instead of posix_fallocate(), falling back to posix_fallocate() if the fallocate() call failed (it's only supported for the ext4, ocfs2, xfs and btrfs file systems at the moment). On Mac OS X it uses the specific fcntl() operation F_PREALLOCATE, falling back to posix_fallocate() if it's available (at the moment Mac OS X doesn't provide posix_fallocate()). On any other UNIX system, it uses posix_fallocate() if it's available. Any other system not providing this system call or any function to pre-allocate space for files, this operation always fails with the ENOTSUP POSIX error.
2012-11-08Support ANSI in the consoleDeadZen
2012-11-02Fix oracle solaris bug in sendfileLukas Larsson
When using values of sfv_len and sfv_off which are larger than the file in question, sendfilev can sometimes return -1 and send data. It seems to be only Oracle SunOS which this happens on.
2012-07-19erts: Remove VxWorks from driversBjörn-Egil Dahlberg
2012-05-09Correct formating in exit error messagesMichael Santos
Ensure displayed sizes are not negative.
2012-03-30Update copyright yearsBjörn-Egil Dahlberg
2012-03-20Fix bug when sending long files using selectLukas Larsson
The return value from efile_sendfile was not consistent inbetween platforms. The API should now be working as it was intended. OTP-9994
2012-01-23Merge branch 'jz/error-logic-efile_sendfile' into maintHenrik Nord
* jz/error-logic-efile_sendfile: erts: minor fix for unnecessary condition OTP-9872
2012-01-23Merge branch 'jz/sendfile_chunk_size' into maintHenrik Nord
* jz/sendfile_chunk_size: erts: change SENDFILE_CHUNK_SIZE from signed to unsigned Conflicts: erts/emulator/drivers/unix/unix_efile.c OTP-9872
2011-12-20erts: rewrite efile_writev to handle partial writes correctlyRaimo Niskanen
2011-12-09Update copyright yearsBjörn-Egil Dahlberg
2011-12-09Merge branch 'raimo/64-bit-driver-api/OTP-9795'Björn Gustavsson
* raimo/64-bit-driver-api/OTP-9795: (22 commits) driver_SUITE.erl: Fix sys info drivers emulator test drivers: Conform to updated driver API runtime_tools's drivers: Conform to updated driver API ws's xwe_driver.c: Conform to updated driver API megaco's flex scanner: Conform to updated driver API seq_trace_SUITE_data/echo_drv.c: Conform to updated driver API erl_interface tests: Conform port_call_drv.c updated driver API erl_drv_thread_SUITE_data/testcase_driver.c: Conform to updated driver API float_SUITE_data/fp_drv.c: Conform to updated driver API port_SUITE_data/*_drv.c: Conform to updated driver API port_bif_SUITE_data/control_drv.c: Conform to updated driver API send_term_SUITE_data/send_term_drv.c: Conform to updated driver API system_profile_SUITE_data/echo_drv.c: Conform to updated driver API trace_port_SUITE_data/echo_drv.c: Conform to updated driver API Remove support for old drivers without ERL_DRV_EXTENDED_MARKER built-in drivers: Add ERL_DRV_EXTENDED_MARKER and version numbers Bump driver version to 2.0 erl_driver.h: Enlarge type on return value from call erl_driver.h: Enlarge types on driver callbacks output, control and call erl_driver.h: Enlarge types in driver output functions ... Conflicts: erts/emulator/test/driver_SUITE_data/monitor_drv.c erts/emulator/test/driver_SUITE_data/timer_drv.c
2011-12-09erl_driver.h: Enlarge types on driver callbacks output, control and callRaimo Niskanen
2011-12-08Merge branch 'ta/sendfile/OTP-9240'Lukas Larsson
* ta/sendfile/OTP-9240: Do not use async threads on DARWIN Fix cleanup when sendfile process crashes Return {error,closed} from sendfile if closed Do not use SFV_NOWAIT as it does not exist on all solaris Clarify some code comments Make solaris use sendfilev
2011-12-08Fix compiler warning in unix_efile.cBjörn-Egil Dahlberg
2011-12-08unix_efile: Zero is a valid number in utimeBjörn-Egil Dahlberg
Both mtime and atime were incorrectly checked for zero
2011-12-07Do not use SFV_NOWAIT as it does not exist on all solarisLukas Larsson
2011-12-06erts: minor fix for unnecessary conditionJovi Zhang
In "while (retval != -1 && retval == SENDFILE_CHUNK_SIZE)", "retval != -1" is pointless.
2011-12-06erts: change SENDFILE_CHUNK_SIZE from signed to unsignedJovi Zhang
It's reasonable to use UL in SENDFILE_CHUNK_SIZE
2011-12-05Clarify some code commentsLukas Larsson
Thanks Tuncer Ayaz
2011-12-05Make solaris use sendfilevLukas Larsson
sendfilev is a richer API which allows us to do non blocking TCP on solaris. The normal sendfile API seems to have some issue with non blocking sockets and the return value of sendfile.
2011-12-02Use epoch seconds instead of datetime()Björn-Egil Dahlberg
First stage in utc-time for prim_file.
2011-12-02Remove header/trailer supportLukas Larsson
Since the API for headers/trailers seem to be very awkward to work with when using non-blocking io the feature is dropped for now. See unix_efile.c for more details.
2011-12-01Preliminary work on header/trailerLukas Larsson
Have to figure out how to represent progress in header writing when using non-blocking, not sure how to do this.
2011-12-01Remove debug printoutsLukas Larsson
2011-12-01Set chunk size to 3 GBLukas Larsson
It is not possible to use the maximum size_t/off_t for the chunks as that causes sendfile to return einval. 3GB seems to work on all *nix platforms.
2011-12-01Add ifdef's for HAVE_SENDFILELukas Larsson
2011-12-01Fix freebsd support for sendfileLukas Larsson
2011-12-01Change nbytes to 64 bitLukas Larsson
2011-12-01Fix offset calculation for darwinLukas Larsson
2011-12-01Implement sendfile when there are no async threadsLukas Larsson
When there are no async threads sendfile will use the ready_output select on the socket fd to know when to send data. The file_desc will also be put in the sending sendfile_state which buffers all other commands to that file until the sendfile is done.
2011-12-01Implement blocking calls for sendfileLukas Larsson
Move sendfile data to invoke data instead of file_descr. Remove usage of ready_output when doing a send. If told to send 0 bytes, file_sendfile now sends the entire file for linux.
2011-12-01Implement sendfile using blocking io in asynch threadsLukas Larsson
Move the command handling to outputv in preparation for header and trailer inclusion in the sendfile api. Use the standard efile communication functions for sendfile.
2011-11-29Implement file:sendfileTuncer Ayaz
Allow Erlang code to use sendfile() where available by wrapping it as file:sendfile/4 and file:sendfile/2. sendfile(2) - Linux man page: "sendfile() copies data between one file descriptor and another. Because this copying is done within the kernel, sendfile() is more efficient than the combination of read(2) and write(2), which would require transferring data to and from user space."
2011-11-07erts: Remove unused variable in ttsl_drvBjörn-Egil Dahlberg
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