diff options
| author | Corinna Vinschen <corinna@vinschen.de> | 2005-12-14 18:54:33 +0300 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2005-12-14 18:54:33 +0300 |
| commit | e3d14af155fb84890a32fad7f7706967ac5bc7d9 (patch) | |
| tree | 05df3064a2c24a1542e182a3aa2d5ff4e3df8f56 /winsup/cygwin/fhandler_raw.cc | |
| parent | 10cba930d401056aed4b2fb360b5e084d61ecabb (diff) | |
* fhandler.cc (fhandler_base::open_9x): Handle O_SYNC and O_DIRECT
flags.
(fhandler_base::open): Ditto.
* fhandler_floppy.cc (fhandler_dev_floppy::open): Don't allocate devbuf
in O_DIRECT case.
* fhandler_raw.cc (fhandler_dev_raw::ioctl): Don't allow buffer
changes in O_DIRECT case. Allow returning a buffer size 0, which
indicates O_DIRECT.
* fhandler_tape.cc (fhandler_dev_tape::open): Use O_SYNC flag to
hand down the !buffer_writes case. Don't allocate devbuf in O_DIRECT
case.
(fhandler_dev_tape::raw_read): Don't mess with devbuf if it's NULL.
* include/fcntl.h: Define _FDIRECT, O_DIRECT, O_DSYNC and O_RSYNC.
* include/cygwin/version.h: Bump API minor version.
Diffstat (limited to 'winsup/cygwin/fhandler_raw.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_raw.cc | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/winsup/cygwin/fhandler_raw.cc b/winsup/cygwin/fhandler_raw.cc index 00d023e7e..0cfb51e6c 100644 --- a/winsup/cygwin/fhandler_raw.cc +++ b/winsup/cygwin/fhandler_raw.cc @@ -159,12 +159,14 @@ fhandler_dev_raw::ioctl (unsigned int cmd, void *buf) } else if ((devbuf && ((op->rd_parm <= 1 && (devbufend - devbufstart)) || op->rd_parm < devbufend - devbufstart)) - || (op->rd_parm > 1 && (op->rd_parm % 512))) + || (op->rd_parm > 1 && (op->rd_parm % 512)) + || (get_flags () & O_DIRECT)) /* The conditions for a *valid* parameter are these: - If there's still data in the current buffer, it must fit in the new buffer. - The new size is either 0 or 1, both indicating unbufferd - I/O, or the new buffersize must be a multiple of 512. */ + I/O, or the new buffersize must be a multiple of 512. + - In the O_DIRECT case, the whole request is invalid. */ ret = ERROR_INVALID_PARAMETER; else if (!devbuf || op->rd_parm != devbufsiz) { @@ -198,7 +200,7 @@ fhandler_dev_raw::ioctl (unsigned int cmd, void *buf) if (!get) ret = ERROR_INVALID_PARAMETER; else - get->bufsiz = devbufsiz ?: 1L; + get->bufsiz = devbufsiz; } else return fhandler_base::ioctl (cmd, buf); |