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2017-12-13IMFS: Include <rtems/imfs.h>Sebastian Huber
Prepare for header file move to common include directory. Update #3254.
2015-01-27IMFS: Replace node union with individual structSebastian Huber
This reduces the average node size. Add and use IMFS_GENERIC_INITIALIZER().
2014-03-21Change all references of rtems.com to rtems.org.Chris Johns
2012-12-18libfs: Doxygen Enhancement Task #2Alex Ivanov
http://www.google-melange.com/gci/task/view/google/gci2012/8032207
2012-05-15Filesystem: Add shared device IO supportSebastian Huber
The device IO file system support in IMFS, devFS, and RFS uses now a shared implementation.
2012-05-15Filesystem: Use ioctl_command_tSebastian Huber
2012-05-11Remove All CVS Id Strings Possible Using a ScriptJoel Sherrill
Script does what is expected and tries to do it as smartly as possible. + remove occurrences of two blank comment lines next to each other after Id string line removed. + remove entire comment blocks which only exited to contain CVS Ids + If the processing left a blank line at the top of a file, it was removed.
2012-05-11Filesystem: PR1398: Fix lseek() mechanicSebastian Huber
According to POSIX the lseek() function shall not, by itself, extend the size of a file. Remove the size field of rtems_libio_t. A file has only one size but may have multiple open file descriptors. Thus a file size field in the file descriptor may lead to inconsistencies. New default handlers rtems_filesystem_default_lseek_file() and rtems_filesystem_default_lseek_directory().
2012-03-13IMFS: Reference counting for nodesSebastian Huber
The introduction of reference counting of nodes avoids the removal of open nodes and potential usage of freed memory.
2012-03-13Filesystem: Reference counting for locationsSebastian Huber
o A new data structure rtems_filesystem_global_location_t was introduced to be used for o the mount point location in the mount table entry, o the file system root location in the mount table entry, o the root directory location in the user environment, and o the current directory location in the user environment. During the path evaluation global start locations are obtained to ensure that the current file system instance will be not unmounted in the meantime. o The user environment uses now reference counting and is protected from concurrent access. o The path evaluation process was completely rewritten and simplified. The IMFS, RFS, NFS, and DOSFS use now a generic path evaluation method. Recursive calls in the path evaluation have been replaced with iteration to avoid stack overflows. Only the evaluation of symbolic links is recursive. No dynamic memory allocations and intermediate buffers are used in the high level path evaluation. No global locks are held during the file system instance specific path evaluation process. o Recursive symbolic link evaluation is now limited by RTEMS_FILESYSTEM_SYMLOOP_MAX. Applications can retrieve this value via sysconf(). o The device file system (devFS) uses now no global variables and allocation from the workspace. Node names are allocated from the heap. o The upper layer lseek() performs now some parameter checks. o The upper layer ftruncate() performs now some parameter checks. o unmask() is now restricted to the RWX flags and protected from concurrent access. o The fchmod_h and rmnod_h file system node handlers are now a file system operation. o The unlink_h operation has been removed. All nodes are now destroyed with the rmnod_h operation. o New lock_h, unlock_h, clonenod_h, and are_nodes_equal_h file system operations. o The path evaluation and file system operations are now protected by per file system instance lock and unlock operations. o Fix and test file descriptor duplicate in fcntl(). o New test fstests/fsnofs01.
2011-11-062011-11-06 Ralf Corsépius <ralf.corsepius@rtems.org>Ralf Corsepius
PR1945/cpukit * libfs/src/imfs/deviceio.c, libfs/src/imfs/imfs.h, libfs/src/imfs/imfs_directory.c, libfs/src/imfs/imfs_fifo.c, libfs/src/imfs/memfile.c: Replace rtems_off64_t with off_t.
2010-07-152010-07-16 Sebastian Huber <sebastian.huber@embedded-brains.de>Sebastian Huber
* libcsupport/include/rtems/libio.h: Removed file_info and handlers fields in rtems_libio_t. * libcsupport/src/close.c, libcsupport/src/fcntl.c, libcsupport/src/fdatasync.c, libcsupport/src/fstat.c, libcsupport/src/fsync.c, libcsupport/src/ftruncate.c, libcsupport/src/getdents.c, libcsupport/src/ioctl.c, libcsupport/src/libio_sockets.c, libcsupport/src/lseek.c, libcsupport/src/open.c, libcsupport/src/read.c, libcsupport/src/readv.c, libcsupport/src/write.c, libcsupport/src/writev.c, libfs/src/devfs/devclose.c, libfs/src/devfs/devioctl.c, libfs/src/devfs/devopen.c, libfs/src/devfs/devread.c, libfs/src/devfs/devwrite.c libfs/src/dosfs/msdos_dir.c libfs/src/dosfs/msdos_file.c libfs/src/imfs/deviceio.c libfs/src/imfs/imfs_directory.c libfs/src/imfs/imfs_fifo.c libfs/src/imfs/memfile.c libfs/src/nfsclient/src/nfs.c libfs/src/rfs/rtems-rfs-rtems-file.c libfs/src/rfs/rtems-rfs-rtems.h libnetworking/lib/ftpfs.c: Reflect changes above.
2010-06-082010-06-08 Sebastian Huber <sebastian.huber@embedded-brains.de>Sebastian Huber
* libfs/src/imfs/imfs.h, libfs/src/imfs/imfs_rmnod.c: Added and use IMFS_create_orphan() and IMFS_check_node_remove(). * libfs/src/imfs/deviceio.c, libfs/src/imfs/imfs_directory.c, libfs/src/imfs/imfs_fifo.c: Use IMFS_create_orphan() and IMFS_check_node_remove(). * libfs/src/imfs/imfs_handlers_memfile.c, libfs/src/imfs/memfile.c: Use IMFS_rmnod() and IMFS_check_node_remove() instead of memfile_rmnod() and memfile_check_rmnod().
2010-06-082010-06-08 Sebastian Huber <sebastian.huber@embedded-brains.de>Sebastian Huber
* libfs/src/devfs/devclose.c, libfs/src/devfs/devopen.c, libfs/src/imfs/deviceerrno.c, libfs/src/imfs/deviceio.c, libfs/src/rfs/rtems-rfs-rtems-dev.c: Changed rtems_deviceio_errno() to cope with a status code of RTEMS_SUCCESSFUL. Removed dependency on association framework.
2009-04-292009-04-29 Chris Johns <chrisj@rtems.org>Chris Johns
* libcsupport/include/rtems/libio.h: Add rtems_off64_t for internal use. Update the internal off_t to the 64bit offset. * libnetworking/lib/ftpfs.c, libnetworking/lib/tftpDriver.c, libfs/src/nfsclient/src/nfs.c, libfs/src/imfs/imfs_fifo.c, libfs/src/imfs/memfile.c, libfs/src/imfs/imfs_directory.c, libfs/src/imfs/imfs.h, libfs/src/imfs/deviceio.c: Change off_t to rtems_off64_t. * libmisc/shell/main_msdosfmt.c: Add an info level so the format code can tell the user what is happening. Add more options to control the format configuration. * libfs/src/dosfs/msdos_format.c: Add a print function to display the format progress and print statements. Select a better default cluster size depending on the size of the disk. This lowers the size of the FAT on large disks. Read and maintain the MRB partition information. * libfs/src/dosfs/dosfs.h, libfs/src/dosfs/fat.h, libfs/src/dosfs/fat_file.c, libfs/src/dosfs/fat_file.h, libfs/src/dosfs/msdos.h, libfs/src/dosfs/msdos_conv.c, libfs/src/dosfs/msdos_create.c, libfs/src/dosfs/msdos_file.c, libfs/src/dosfs/msdos_handlers_dir.c, libfs/src/dosfs/msdos_handlers_file.c, libfs/src/dosfs/msdos_init.c, libfs/src/dosfs/msdos_initsupp.c, libfs/src/dosfs/msdos_misc.c, libfs/src/dosfs/msdos_mknod.c: Add long file name support. Change off_t to rtems_off64_t.
2009-03-122009-03-12 Santosh G Vattam <vattam.santosh@gmail.com>Joel Sherrill
PR 1378/filesystem * libfs/src/imfs/deviceio.c: IMFS device lseek should return the current offset.
2009-03-092009-03-09 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill
PR 1376/filesystem * libcsupport/include/rtems/libio.h, libfs/src/dosfs/fat_file.c, libfs/src/dosfs/msdos.h, libfs/src/dosfs/msdos_dir.c, libfs/src/dosfs/msdos_file.c, libfs/src/imfs/deviceio.c, libfs/src/imfs/imfs.h, libfs/src/imfs/imfs_directory.c, libfs/src/imfs/imfs_fifo.c, libfs/src/imfs/memfile.c, libfs/src/nfsclient/src/nfs.c: lseek handlers should return off_t.
2008-09-252008-09-25 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill
* libfs/src/imfs/deviceio.c: Eliminate duplicate implementation.
2008-09-172008-09-17 Miao Yan <yanmiaobest@gmail.com>Joel Sherrill
* Makefile.am, preinstall.am, libcsupport/Makefile.am, libcsupport/include/rtems/libcsupport.h, libcsupport/include/rtems/libio.h, libcsupport/src/base_fs.c, libcsupport/src/libio_init.c, libcsupport/src/newlibc_exit.c, libcsupport/src/newlibc_init.c, libcsupport/src/sync.c, libfs/Makefile.am, libfs/src/imfs/deviceio.c, sapi/include/confdefs.h: Merge GSOC project code to add simple device only filesystem (devfs), optionally completely drop out filesystem, and to clean up disabling newlib reentrancy support. This dropped 17K from the minimum.exe for sparc/sis and arm/rtl22xx_t now has a 15K code space. * libcsupport/src/__usrenv.c, libcsupport/src/newlibc_reent.c, libfs/src/devfs/devclose.c, libfs/src/devfs/devfs.h, libfs/src/devfs/devfs_eval.c, libfs/src/devfs/devfs_init.c, libfs/src/devfs/devfs_mknod.c, libfs/src/devfs/devfs_node_type.c, libfs/src/devfs/devfs_show.c, libfs/src/devfs/devioctl.c, libfs/src/devfs/devopen.c, libfs/src/devfs/devread.c, libfs/src/devfs/devstat.c, libfs/src/devfs/devwrite.c, libfs/src/imfs/deviceerrno.c: New files. * libcsupport/src/newlibc.c: Removed.
2008-09-082008-09-08 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill
* libcsupport/include/rtems/libio_.h, libcsupport/src/libio_sockets.c, libfs/src/dosfs/fat.h, libfs/src/dosfs/msdos.h, libfs/src/imfs/deviceio.c, libmisc/monitor/mon-monitor.c, libmisc/monitor/mon-object.c, libmisc/monitor/mon-symbols.c, libmisc/monitor/monitor.h, libmisc/stackchk/internal.h, rtems/inline/rtems/rtems/part.inl, score/include/rtems/system.h, score/include/rtems/score/bitfield.h, score/src/mpci.c, score/src/objectextendinformation.c, score/src/threadmp.c: Remove extraneous spaces.
2008-07-10Added S_IRWXU, S_IRWXG and S_IRWXO to file mode.Thomas Doerfler
2008-05-27Added const qualifier to various pointers and data tables toThomas Doerfler
reduce size of data area. IMFS: Fixed creation of symbolic links to avoid a compiler warning. DOSFS: Use LibBlock instead of read() to read the boot record.
2006-12-08Use size_t instead of uint32_t for read/write count-args.Ralf Corsepius
2004-04-17Remove stray white spaces.Ralf Corsepius
2004-03-222004-03-22 Ralf Corsepius <ralf_corsepius@rtems.org>Ralf Corsepius
* libfs/src/dosfs/fat.c, libfs/src/dosfs/fat.h, libfs/src/dosfs/fat_fat_operations.c, libfs/src/dosfs/fat_fat_operations.h, libfs/src/dosfs/fat_file.c, libfs/src/dosfs/fat_file.h, libfs/src/dosfs/msdos.h, libfs/src/dosfs/msdos_create.c, libfs/src/dosfs/msdos_dir.c, libfs/src/dosfs/msdos_file.c, libfs/src/dosfs/msdos_initsupp.c, libfs/src/dosfs/msdos_misc.c, libfs/src/imfs/deviceio.c, libfs/src/imfs/imfs.h, libfs/src/imfs/imfs_directory.c, libfs/src/imfs/imfs_fchmod.c, libfs/src/imfs/linearfile.c, libfs/src/imfs/memfile.c: Convert to using c99 fixed-size types.
2003-09-042003-09-04 Joel Sherrill <joel@OARcorp.com>Joel Sherrill
* src/dosfs/dosfs.h, src/dosfs/fat.h, src/dosfs/fat_fat_operations.h, src/dosfs/fat_file.h, src/dosfs/msdos.h, src/dosfs/msdos_create.c, src/dosfs/msdos_dir.c, src/dosfs/msdos_eval.c, src/dosfs/msdos_file.c, src/dosfs/msdos_free.c, src/dosfs/msdos_fsunmount.c, src/dosfs/msdos_handlers_dir.c, src/dosfs/msdos_handlers_file.c, src/dosfs/msdos_init.c, src/dosfs/msdos_initsupp.c, src/dosfs/msdos_misc.c, src/dosfs/msdos_mknod.c, src/dosfs/msdos_node_type.c, src/imfs/deviceio.c, src/imfs/imfs.h, src/imfs/imfs_chown.c, src/imfs/imfs_config.c, src/imfs/imfs_creat.c, src/imfs/imfs_debug.c, src/imfs/imfs_directory.c, src/imfs/imfs_eval.c, src/imfs/imfs_fchmod.c, src/imfs/imfs_fcntl.c, src/imfs/imfs_fdatasync.c, src/imfs/imfs_free.c, src/imfs/imfs_fsunmount.c, src/imfs/imfs_getchild.c, src/imfs/imfs_gtkn.c, src/imfs/imfs_handlers_device.c, src/imfs/imfs_handlers_directory.c, src/imfs/imfs_handlers_link.c, src/imfs/imfs_handlers_memfile.c, src/imfs/imfs_init.c, src/imfs/imfs_initsupp.c, src/imfs/imfs_link.c, src/imfs/imfs_mknod.c, src/imfs/imfs_mount.c, src/imfs/imfs_ntype.c, src/imfs/imfs_readlink.c, src/imfs/imfs_rmnod.c, src/imfs/imfs_stat.c, src/imfs/imfs_symlink.c, src/imfs/imfs_unixstub.c, src/imfs/imfs_unlink.c, src/imfs/imfs_unmount.c, src/imfs/imfs_utime.c, src/imfs/ioman.c, src/imfs/linearfile.c, src/imfs/memfile.c, src/imfs/miniimfs_init.c: URL for license changed.
2003-08-052003-08-05 <djc915@mail.usask.ca>Jennifer Averett
PR 443/filesystem * src/imfs/deviceio.c: deviceio.c mishandles return codes
2002-09-142002-09-14 Joel Sherrill <joel@OARcorp.com>Joel Sherrill
* src/dosfs/fat.c, src/imfs/deviceio.c, src/imfs/imfs.h, src/imfs/imfs_directory.c, src/imfs/imfs_fchmod.c, src/imfs/memfile.c: Eliminated warnings. A lot of this focus was on changing read and write entry points to return ssize_t as read(2) and write(2) now do.
2001-07-062001-07-06 Thomas Doerfler <Thomas.Doerfler@imd-systems.de>Joel Sherrill
* src/imfs/deviceio.c: Make sure errno gets set to reflect the status from the driver.
2001-01-222001-01-22 Ralf Corsepius <corsepiu@faw.uni-ulm.de>Joel Sherrill
* configure.in: Add src/imfs/config.h * src/imfs/Makefile.am: Add INCLUDES += -I. to pickup config.h * src/imfs/.cvsignore: Add config.h and stamp-h * src/imfs/*.c: Add config.h support.
2000-11-012000-11-01 Joel Sherrill <joel@OARcorp.com>Joel Sherrill
* src/imfs/Makefile.am, src/imfs/deviceio.c, src/imfs/imfs_chown.c, src/imfs/imfs_config.c, src/imfs/imfs_creat.c, src/imfs/imfs_debug.c, src/imfs/imfs_directory.c, src/imfs/imfs_eval.c, src/imfs/imfs_fchmod.c, src/imfs/imfs_free.c, src/imfs/imfs_fsunmount.c, src/imfs/imfs_gtkn.c, src/imfs/imfs_init.c, src/imfs/imfs_initsupp.c, src/imfs/imfs_link.c, src/imfs/imfs_mknod.c, src/imfs/imfs_mount.c, src/imfs/imfs_readlink.c, src/imfs/imfs_rmnod.c, src/imfs/imfs_stat.c, src/imfs/imfs_symlink.c, src/imfs/imfs_unixstub.c, src/imfs/imfs_unlink.c, src/imfs/imfs_unmount.c, src/imfs/imfs_utime.c, src/imfs/ioman.c, src/imfs/memfile.c, src/imfs/miniimfs_init.c: assoc.h, error.h, libio_.h, libio.h, and libcsupport.h moved from libc to lib/include/rtems and now must be referenced as <rtems/XXX.h>. Now we do not have to reach up and over to libc to pick them up.
1999-11-17Updated copyright notice.Joel Sherrill
1999-11-05Unmount was failing as a side-effect of splitting the rmnod handlerJoel Sherrill
and not handling every case properly.
1999-11-02The object memfile.o was being included in the miniIMFS even though itJoel Sherrill
should not have been. This required that IMFS_rmnod be split into three separate (per file type) routines to avoid dependencies. In the end, a miniIMFS application is 6K smaller than one using the full IMFS.
1998-11-23Added base version of file system infrastructure. This includes a majorJoel Sherrill
overhaul of the RTEMS system call interface. This base file system is the "In-Memory File System" aka IMFS. The design and implementation was done by the following people: + Joel Sherrill (joel@OARcorp.com) + Jennifer Averett (jennifer@OARcorp.com) + Steve "Mr Mount" Salitasc (salitasc@OARcorp.com) + Kerwin Wade (wade@OARcorp.com) PROBLEMS ======== + It is VERY likely that merging this will break the UNIX port. This can/will be fixed. + There is likely some reentrancy/mutual exclusion needed. + Eventually, there should be a "mini-IMFS" description table to eliminate links, symlinks, etc to save memory. All you need to have "classic RTEMS" functionality is technically directories and device IO. All the rest could be left out to save memory.
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