Filesystem: Add readv/writev handlers

The readv() and writev() support was implemented in terms of multiple
calls to the read and write handlers.  This imposes a problem on device
files which use an IO vector as single request entity.  For example a
low-level network device (e.g. BPF(4)) may use an IO vector to create
one frame from multiple protocol layers each with its own IO vector
entry.

1 files changed, 13 insertions, 11 deletions

diff --git a/cpukit/libfs/src/dosfs/msdos_handlers_file.c b/cpukit/libfs/src/dosfs/msdos_handlers_file.c
index 2a3938d02a..d5885bb688 100644
--- a/cpukit/libfs/src/dosfs/msdos_handlers_file.c
+++ b/cpukit/libfs/src/dosfs/msdos_handlers_file.c
@@ -22,15 +22,17 @@
 #include "msdos.h"
 
 const rtems_filesystem_file_handlers_r msdos_file_handlers = {
-    rtems_filesystem_default_open,
-    msdos_file_close,
-    msdos_file_read,
-    msdos_file_write,
-    rtems_filesystem_default_ioctl,
-    rtems_filesystem_default_lseek_file,
-    msdos_file_stat,
-    msdos_file_ftruncate,
-    msdos_file_sync,
-    msdos_sync,
-    rtems_filesystem_default_fcntl
+  .open_h = rtems_filesystem_default_open,
+  .close_h = msdos_file_close,
+  .read_h = msdos_file_read,
+  .write_h = msdos_file_write,
+  .ioctl_h = rtems_filesystem_default_ioctl,
+  .lseek_h = rtems_filesystem_default_lseek_file,
+  .fstat_h = msdos_file_stat,
+  .ftruncate_h = msdos_file_ftruncate,
+  .fsync_h = msdos_file_sync,
+  .fdatasync_h = msdos_sync,
+  .fcntl_h = rtems_filesystem_default_fcntl,
+  .readv_h = rtems_filesystem_default_readv,
+  .writev_h = rtems_filesystem_default_writev
 };