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2014-07-22erts: Fix inet close on prebound fdsBjörn-Egil Dahlberg
Inet close must remove fd from select/poll without closing the fd.
2014-07-22kernel: When doing an fdopen we now also bind the fd to the specified addr/portLukas Larsson
2014-05-14Fix efile_openfile() to handle stat() failureMikael Pettersson
If the initial stat() fails then efile_openfile() will still proceed to open() the file. If that succeeds and the caller passed a non-NULL pSize, then it will copy bogus data from the statbuf into *pSize. This has been observed to cause file:read_file/1 to return truncated file data with no error indication. The use case involved a large file system mounted via NFS, with some directories containing large number of files, and NFS mount options that allow the NFS client to return EIO if the NFS server does not respond quickly enough. Depending on the caching state of the client and server machines, a few stat() calls (fewer than 1 per 10 million) would take long enough to trigger EIO errors, but subsequent open() calls would succeed, and read_file/1 would return truncated data. This sequence of events has been observed via "strace" on beam.smp. Signed-off-by: Mikael Pettersson <[email protected]>
2014-03-28Merge branch 'lukas/ose/master-17.0/OTP-11334'Lukas Larsson
* lukas/ose/master-17.0/OTP-11334: erts: Move debug printout to eliminate gcc warning
2014-03-28erts: Move debug printout to eliminate gcc warningLukas Larsson
2014-03-27Merge branch 'lukas/ose/master-17.0/OTP-11334'Lukas Larsson
* lukas/ose/master-17.0/OTP-11334: ose: Fix erts assert failed printouts ose: fix for packet_bytes in fd/spawn driver. ose: Prepare slave for running on OSE ose: Fix bug when hunting for signal proxy ose: Implement tcp inet driver for OSE ose: Add ifdefs for HAVE_UDP ose: Yielding has to be done differently for background processes. ose: Print faults in aio sys driver calls ose: Prinout errno when to_erl read fails ose: erlang display goes to ramlog printf ose: Initiate stdin/stdout/stderr ose: Break lmconf into one per load module ose: Reset busy port when pdq empty ose: Restore the owner of the signal
2014-03-26ose: Implement tcp inet driver for OSELukas Larsson
The inet driver for OSE has to handle signals instead of selects and thus the wrappers for ready_input/output are a little bit different. However the majority of the inet code remains the same.
2014-03-26ose: Add ifdefs for HAVE_UDPLukas Larsson
2014-03-25Merge branch 'bjorn/erts/zlib-fix'Björn Gustavsson
* bjorn/erts/zlib-fix: zlib: Fix adler32_combine/4 and crc32_combine/4
2014-03-24Merge branch 'sverk/win-long-filenames/OTP-11813'Sverker Eriksson
* sverk/win-long-filenames/OTP-11813: erts: Cleanup debug tracing in win_efile.c erts: Fix file:list_dir for windows paths 258 or 259 chars long erts: Increase MAXPATHLEN to 4096 for windows erts: Fix bug in efile_readlink for long win paths kernel: Fix failed tests in prim_file_SUITE for windows erts: Fix compiler warning in win_efile.c erts: Skip tests of paths longer than 255 characters as atoms erts: Skip tests of file:set_cwd for too long path on Windows erts: Make file:make_symlink/2 return {error,eperm} on Windows erts: Revert file:set_cwd impl for windows erts: Ignore reduntant slashes in windows paths fix file_SUITE:cur_dir_0 for long windows paths erts: Fix file_SUITE:make_del_dir for long paths erts: Fix long windows paths for compressed files erts: Use GetFullPathNameW to construct abs paths from relative ones erts: Fix file driver to handle long paths on windows Conflicts: erts/emulator/drivers/win32/win_efile.c
2014-03-24erts: Cleanup debug tracing in win_efile.cSverker Eriksson
2014-03-24erts: Fix file:list_dir for windows paths 258 or 259 chars longSverker Eriksson
Appending wildcard "\*" made the path too long (>= 260 chars).
2014-03-24erts: Fix bug in efile_readlink for long win pathsSverker Eriksson
2014-03-24erts: Fix compiler warning in win_efile.cSverker Eriksson
and some improved debug tracing
2014-03-24erts: Make file:make_symlink/2 return {error,eperm} on WindowsSverker Eriksson
if the user has not the privilege SE_CREATE_SYMBOLIC_LINK_NAME
2014-03-21zlib: Fix adler32_combine/4 and crc32_combine/4Björn Gustavsson
Since our config.h is included in each source file in the zlib directory, we must make sure that config.h is also included every time zlib functions are called to ensure that definitions of types are consistent. zlib_drv.c did not include config.h, which caused problems on a MacOS X Leopard system. What happened was that HAVE_UNISTD_H was not defined when zlib.h was included. When unistd.h is not known to exist, the type z_off_t will be set to a long (32 bits on this platform). But when the zlib source files were compiled, HAVE_UNISTD_H was defined, unistd.h would be included, and z_off_t would be set to off_t (64 bits; defined in unistd.h). As a result of the mismatch, calls to the adler32_combine() and crc32_combine() would pass only 32 bits in the len2 argument when 64 bits were expected.
2014-03-13erts: Revert file:set_cwd impl for windowsSverker Eriksson
No need to even try as CWD can not bee a long path anyway.
2014-03-13erts: Ignore reduntant slashes in windows pathsSverker Eriksson
2014-03-13erts: Fix long windows paths for compressed filesSverker Eriksson
2014-03-13erts: Use GetFullPathNameW to construct abs paths from relative onesSverker Eriksson
2014-03-13erts: Fix file driver to handle long paths on windowsSverker Eriksson
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
2014-02-24erts: 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: Add dummy ttsl driverLukas Larsson
2014-02-24ose: Updating event and signal API for OSEJonas Karlsson
2014-02-24ose: Thread priorities configurable from lmconfLukas Larsson
The pattern used for getting the priority from the lmconf is based on the name of the process created. The pattern is: ERTS_%%PROCESS_NAME%%_PRIO with the %%PROCESS_NAME%% replaced by the prefix of the process the priority applies to. eg: ERTS_SCHEDULER_PRIO=24 applies to processes with name SCHEDULER_1, SCHEDULER_2 etc.
2014-02-24ose: Rewrite resolve_signal API for ose driversLukas Larsson
This new API has less impact on the check_io code and also removes the callback from ErlDrvEntry. The downside is that you have to give the resolve function when creating each event. Also the mode if the resolve was removed as this mimics the win32 code and decreases complexity.
2014-02-24ose: OSE port related cleanup and fixesJonas Karlsson
Some OSE cross-chains have problems with system includes being used, so for atleast OSE specific parts we use "" instead of <>.
2014-02-24ose: efile driver updates.Jonas Karlsson
2014-02-24ose: Bugfixes to filesystem related issues.Jonas Karlsson
2014-02-24ose: Handle lseek() with offset beyond EOF in the file driver.Lukas Larsson
2014-02-24ose: Fix various build environment issuesLukas Larsson
2014-02-24ose: Add module that allows interaction with any OSE processLukas Larsson
The interface of this module is made to be as generic as possible in order for other IPC mechanisms to mimic it and allow porting of code between different os:es.
2014-02-24ose: lseek() to use SEEK_CURJonas Karlsson
This is needed because OSE does not use 1 for SEEK_CUR
2014-02-24ose: Convert EFILE_SEEK to unistd seek for gzioLukas Larsson
This is needed because OSE does not have the same integers as unix/win32 for SEEK_ST and friends.
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.
2014-02-04gzio.c: Remove unnecessary usage of the OF() macroBjörn Gustavsson
Daniel Goertzen reported that commit 8a147a7365 broke building of Erlang/OTP on Gentoo Linux because the macro OF() was missing. Apparently, on Gentoo the OF() macro in zconf.h has been renamed to _Z_OF() (to avoid polluting the global namespace). Don't use the OF() macro in gzio.c since it no longer serves any useful purpose (it provided compatibility with pre-ANSI/ISO C compilers, but the rest of Erlang/OTP requires an ANSI/ISO C compiler anyway).
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
2014-01-27Merge branch 'lukas/erts/sendfile_passive_mode_fix/OTP-11614'Lukas Larsson
* lukas/erts/sendfile_passive_mode_fix/OTP-11614: erts: fix bug when using passive mode and sendfile
2014-01-27erts: fix bug when using passive mode and sendfileLukas Larsson
The bug incorrectly issued driver_select when un-ignoring an fd for a socket in passive mode, which caused an incorrect error tuple to be returned when the remote end closed the connection.
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.
2014-01-14Don't make gzio.c dependent on the zutil.h header fileBjörn Gustavsson
gzio.c is our own replacement for zlib's gzopen() etc (based on a version of gzio.c that was included in an old version of zlib). Unfortunately, gzio.c still depends on the *internal* zlib header file zutil.h which is not supposed to be used outside of the zlib source code. The dependencies are the use of the gzFile typedef and the F_OPEN() macro. Instead of gzFile, define and use our own ErtsGzFile. To get rid of the F_OPEN() macro, call open() of _wfopen() directly.
2013-12-13erts: Fix compiler warningSverker Eriksson
2013-12-02Merge branch 'maint'Henrik Nord
2013-12-02erts: Remove unused file winsock_func.hSverker Eriksson
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
2013-11-26Merge branch 'maint'Raimo Niskanen
Conflicts: erts/preloaded/ebin/prim_inet.beam lib/kernel/test/gen_sctp_SUITE.erl
2013-11-26Merge branch 'maint-r16' into maintRaimo Niskanen
2013-11-20Suppress false valgrind warnings caused by sctp_getpaddrsSverker Eriksson
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.