incubator-nuttx/fs/nxffs
YAMAMOTO Takashi 761ee81956 move readv/writev to the kernel
currently, nuttx implements readv/writev on the top of read/write.
while it might work for the simplest cases, it's broken by design.
for example, it's impossible to make it work correctly for files
which need to preserve data boundaries without allocating a single
contiguous buffer. (udp socket, some character devices, etc)

this change is a start of the migration to a better design.
that is, implement read/write on the top of readv/writev.

to avoid a single huge change, following things will NOT be done in
this commit:

* fix actual bugs caused by the original readv-based-on-read design.
  (cf. https://github.com/apache/nuttx/pull/12674)

* adapt filesystems/drivers to actually benefit from the new interface.
  (except a few trivial examples)

* eventually retire the old interface.

* retire read/write syscalls. implement them in libc instead.

* pread/pwrite/preadv/pwritev (except the introduction of struct uio,
  which is a preparation to back these variations with the new
  interface.)
2024-10-30 17:07:54 +08:00
..
CMakeLists.txt build: add initial cmake build system 2023-07-08 13:50:48 +08:00
Kconfig fs/nxffs/Kconfig: Fix indentation 2023-05-10 00:45:29 +08:00
Make.defs
nxffs.h fs/xxfs:Replace kmm with fs heap 2024-09-30 16:30:56 +08:00
nxffs_block.c nuttx: resolve various 'FAR' and 'CODE' issues 2024-08-26 10:21:03 +08:00
nxffs_blockstats.c
nxffs_cache.c
nxffs_dirent.c fs/xxfs:Replace kmm with fs heap 2024-09-30 16:30:56 +08:00
nxffs_dump.c fs/nxffs: Fix syslog formats compile error 2024-10-21 19:33:33 +08:00
nxffs_initialize.c move readv/writev to the kernel 2024-10-30 17:07:54 +08:00
nxffs_inode.c fs:replase all asprintf / strdup in fs with fs_heap_xxx 2024-10-15 01:16:48 +08:00
nxffs_ioctl.c fs/inode: remove all unnecessary check for filep/inode 2023-08-29 09:47:11 +08:00
nxffs_open.c fs:replase all asprintf / strdup in fs with fs_heap_xxx 2024-10-15 01:16:48 +08:00
nxffs_pack.c fs:replase all asprintf / strdup in fs with fs_heap_xxx 2024-10-15 01:16:48 +08:00
nxffs_read.c inode/i_private: remove all unnecessary cast for i_private 2023-08-29 08:58:07 +02:00
nxffs_reformat.c
nxffs_stat.c inode/i_private: remove all unnecessary cast for i_private 2023-08-29 08:58:07 +02:00
nxffs_truncate.c inode/i_private: remove all unnecessary cast for i_private 2023-08-29 08:58:07 +02:00
nxffs_unlink.c
nxffs_util.c
nxffs_write.c inode/i_private: remove all unnecessary cast for i_private 2023-08-29 08:58:07 +02:00