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* fhandler.h (class fhandler_dev_raw): Delete current_position and 

eof_detected status flag.  Delete is_eom and is_eof methods.
	Move drive_size, bytes_per_sector, eom_detected status flag, as well
	as the methods read_file, write_file, raw_read and raw_write to ...
	(class fhandler_dev_floppy): ... here. Remove is_eom and is_eof
	methods.  Add dup method.
	* fhandler_floppy.cc (IS_EOM): New macro.
	(fhandler_dev_floppy::is_eom): Remove.
	(fhandler_dev_floppy::is_eof): Remove.
	(fhandler_dev_floppy::fhandler_dev_floppy): Initialize status flags.
	(fhandler_dev_floppy::get_drive_info): Only call EX functions on
	systems supporting them and stop suffering strange delays.
	(fhandler_dev_floppy::read_file): Move here, drop setting
	current_position.
	(fhandler_dev_floppy::write_file): Move here, drop setting
	current_position.
	(fhandler_dev_floppy::open): Rearrange comment.
	(fhandler_dev_floppy::dup): New method.
	(fhandler_dev_floppy::get_current_position): New inline method.  Use
	instead of former current_position were appropriate.
	(fhandler_dev_floppy::raw_read): Move here.  Drop EOF handling.
	(fhandler_dev_floppy::raw_write): Move here.  Drop EOF handling.
	(fhandler_dev_floppy::lseek): Remove useless conditions.  Convert
	sector_aligned_offset to LARGE_INTEGER to improve SetFilePointer call.
	(fhandler_dev_floppy::ioctl): Move blocksize check in RDSETBLK case
	to here.
	* fhandler_raw.cc (fhandler_dev_raw::is_eom): Remove.
	(fhandler_dev_raw::is_eof): Remove.
	(fhandler_dev_raw::write_file): Remove.
	(fhandler_dev_raw::read_file): Remove.
	(fhandler_dev_raw::raw_read): Remove.
	(fhandler_dev_raw::raw_write): Remove.
	(fhandler_dev_raw::dup): Drop copying removed members.
	(fhandler_dev_raw::ioctl): Drop blocksize testing.
	* wincap.h: Implement has_disk_ex_ioctls throughout.
	* wincap.cc: Ditto.
	(wincap_vista): Preliminary wincaps for Windows Vista/Longhorn.
	(wincapc::init): Add Vista/Longhorn handling.
This commit is contained in:
Corinna Vinschen 2005-09-28 19:33:18 +00:00
parent dcb091caaf
commit f098767559
6 changed files with 428 additions and 346 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,44 @@
2005-09-28 Corinna Vinschen <corinna@vinschen.de>
* fhandler.h (class fhandler_dev_raw): Delete current_position and
eof_detected status flag. Delete is_eom and is_eof methods.
Move drive_size, bytes_per_sector, eom_detected status flag, as well
as the methods read_file, write_file, raw_read and raw_write to ...
(class fhandler_dev_floppy): ... here. Remove is_eom and is_eof
methods. Add dup method.
* fhandler_floppy.cc (IS_EOM): New macro.
(fhandler_dev_floppy::is_eom): Remove.
(fhandler_dev_floppy::is_eof): Remove.
(fhandler_dev_floppy::fhandler_dev_floppy): Initialize status flags.
(fhandler_dev_floppy::get_drive_info): Only call EX functions on
systems supporting them and stop suffering strange delays.
(fhandler_dev_floppy::read_file): Move here, drop setting
current_position.
(fhandler_dev_floppy::write_file): Move here, drop setting
current_position.
(fhandler_dev_floppy::open): Rearrange comment.
(fhandler_dev_floppy::dup): New method.
(fhandler_dev_floppy::get_current_position): New inline method. Use
instead of former current_position were appropriate.
(fhandler_dev_floppy::raw_read): Move here. Drop EOF handling.
(fhandler_dev_floppy::raw_write): Move here. Drop EOF handling.
(fhandler_dev_floppy::lseek): Remove useless conditions. Convert
sector_aligned_offset to LARGE_INTEGER to improve SetFilePointer call.
(fhandler_dev_floppy::ioctl): Move blocksize check in RDSETBLK case
to here.
* fhandler_raw.cc (fhandler_dev_raw::is_eom): Remove.
(fhandler_dev_raw::is_eof): Remove.
(fhandler_dev_raw::write_file): Remove.
(fhandler_dev_raw::read_file): Remove.
(fhandler_dev_raw::raw_read): Remove.
(fhandler_dev_raw::raw_write): Remove.
(fhandler_dev_raw::dup): Drop copying removed members.
(fhandler_dev_raw::ioctl): Drop blocksize testing.
* wincap.h: Implement has_disk_ex_ioctls throughout.
* wincap.cc: Ditto.
(wincap_vista): Preliminary wincaps for Windows Vista/Longhorn.
(wincapc::init): Add Vista/Longhorn handling.
2005-09-28 Christopher Faylor <cgf@timesys.com>
* dcrt0.cc (getstack): New function.

51
winsup/cygwin/fhandler.h
View File

@ -551,50 +551,29 @@ public:
class fhandler_dev_raw: public fhandler_base
{
protected:
_off64_t drive_size;
_off64_t current_position;
unsigned long bytes_per_sector;
char *devbuf;
size_t devbufsiz;
size_t devbufstart;
size_t devbufend;
struct status_flags
{
unsigned eom_detected : 1;
unsigned eof_detected : 1;
unsigned lastblk_to_read : 1;
public:
status_flags () :
eom_detected (0), eof_detected (0), lastblk_to_read (0)
{}
status_flags () : lastblk_to_read (0) {}
} status;
IMPLEMENT_STATUS_FLAG (bool, eom_detected)
IMPLEMENT_STATUS_FLAG (bool, eof_detected)
IMPLEMENT_STATUS_FLAG (bool, lastblk_to_read)
virtual BOOL write_file (const void *buf, DWORD to_write,
DWORD *written, int *err);
virtual BOOL read_file (void *buf, DWORD to_read, DWORD *read, int *err);
/* returns not null, if `win_error' determines an end of media condition */
virtual int is_eom(int win_error);
/* returns not null, if `win_error' determines an end of file condition */
virtual int is_eof(int win_error);
fhandler_dev_raw ();
public:
~fhandler_dev_raw ();
int open (int flags, mode_t mode = 0);
void raw_read (void *ptr, size_t& ulen);
int raw_write (const void *ptr, size_t ulen);
int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2)));
int dup (fhandler_base *child);
int ioctl (unsigned int cmd, void *buf);
void fixup_after_fork (HANDLE);
@ -604,20 +583,32 @@ class fhandler_dev_raw: public fhandler_base
class fhandler_dev_floppy: public fhandler_dev_raw
{
private:
_off64_t drive_size;
unsigned long bytes_per_sector;
struct status_flags
{
unsigned eom_detected : 1;
public:
status_flags () : eom_detected (0) {}
} status;
IMPLEMENT_STATUS_FLAG (bool, eom_detected)
inline _off64_t get_current_position ();
int fhandler_dev_floppy::get_drive_info (struct hd_geometry *geo);
protected:
virtual int is_eom (int win_error);
virtual int is_eof (int win_error);
BOOL write_file (const void *buf, DWORD to_write, DWORD *written, int *err);
BOOL read_file (void *buf, DWORD to_read, DWORD *read, int *err);
public:
fhandler_dev_floppy ();
virtual int open (int flags, mode_t mode = 0);
virtual _off64_t lseek (_off64_t offset, int whence);
virtual int ioctl (unsigned int cmd, void *buf);
int open (int flags, mode_t mode = 0);
int dup (fhandler_base *child);
void raw_read (void *ptr, size_t& ulen);
int raw_write (const void *ptr, size_t ulen);
_off64_t lseek (_off64_t offset, int whence);
int ioctl (unsigned int cmd, void *buf);
};
class fhandler_dev_tape: public fhandler_dev_raw

352
winsup/cygwin/fhandler_floppy.cc
View File

@ -14,6 +14,7 @@ details. */
#include <unistd.h>
#include <winioctl.h>
#include <asm/socket.h>
#include <cygwin/rdevio.h>
#include <cygwin/hdreg.h>
#include <cygwin/fs.h>
#include "cygerrno.h"
@ -21,31 +22,15 @@ details. */
#include "path.h"
#include "fhandler.h"
#define IS_EOM(err) ((err) == ERROR_INVALID_PARAMETER \
|| (err) == ERROR_SEEK \
|| (err) == ERROR_SECTOR_NOT_FOUND)
/**********************************************************************/
/* fhandler_dev_floppy */
int
fhandler_dev_floppy::is_eom (int win_error)
{
int ret = (win_error == ERROR_INVALID_PARAMETER
|| win_error == ERROR_SEEK
|| win_error == ERROR_SECTOR_NOT_FOUND);
if (ret)
debug_printf ("end of medium");
return ret;
}
int
fhandler_dev_floppy::is_eof (int)
{
int ret = 0;
if (ret)
debug_printf ("end of file");
return ret;
}
fhandler_dev_floppy::fhandler_dev_floppy ()
: fhandler_dev_raw ()
: fhandler_dev_raw (), status ()
{
}
@ -62,9 +47,22 @@ fhandler_dev_floppy::get_drive_info (struct hd_geometry *geo)
/* Always try using the new EX ioctls first (>= XP). If not available,
fall back to trying the old non-EX ioctls. */
if (!DeviceIoControl (get_handle (),
IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, NULL, 0,
dbuf, 256, &bytes_read, NULL))
if (wincap.has_disk_ex_ioctls ())
{
if (!DeviceIoControl (get_handle (),
IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, NULL, 0,
dbuf, 256, &bytes_read, NULL))
{
__seterrno ();
return -1;
}
di = &((DISK_GEOMETRY_EX *) dbuf)->Geometry;
if (DeviceIoControl (get_handle (),
IOCTL_DISK_GET_PARTITION_INFO_EX, NULL, 0,
pbuf, 256, &bytes_read, NULL))
pix = (PARTITION_INFORMATION_EX *) pbuf;
}
else
{
if (!DeviceIoControl (get_handle (),
IOCTL_DISK_GET_DRIVE_GEOMETRY, NULL, 0,
@ -74,18 +72,11 @@ fhandler_dev_floppy::get_drive_info (struct hd_geometry *geo)
return -1;
}
di = (DISK_GEOMETRY *) dbuf;
if (DeviceIoControl (get_handle (),
IOCTL_DISK_GET_PARTITION_INFO, NULL, 0,
pbuf, 256, &bytes_read, NULL))
pi = (PARTITION_INFORMATION *) pbuf;
}
else
di = &((DISK_GEOMETRY_EX *) dbuf)->Geometry;
if (DeviceIoControl (get_handle (),
IOCTL_DISK_GET_PARTITION_INFO_EX, NULL, 0,
pbuf, 256, &bytes_read, NULL))
pix = (PARTITION_INFORMATION_EX *) pbuf;
else if (DeviceIoControl (get_handle (),
IOCTL_DISK_GET_PARTITION_INFO, NULL, 0,
pbuf, 256, &bytes_read, NULL))
pi = (PARTITION_INFORMATION *) pbuf;
debug_printf ("disk geometry: (%ld cyl)*(%ld trk)*(%ld sec)*(%ld bps)",
di->Cylinders.LowPart,
@ -132,22 +123,46 @@ fhandler_dev_floppy::get_drive_info (struct hd_geometry *geo)
return 0;
}
/* Wrapper functions for ReadFile and WriteFile to simplify error handling. */
BOOL
fhandler_dev_floppy::read_file (void *buf, DWORD to_read, DWORD *read, int *err)
{
BOOL ret;
*err = 0;
if (!(ret = ReadFile (get_handle (), buf, to_read, read, 0)))
*err = GetLastError ();
syscall_printf ("%d (err %d) = ReadFile (%d, %d, to_read %d, read %d, 0)",
ret, *err, get_handle (), buf, to_read, *read);
return ret;
}
BOOL
fhandler_dev_floppy::write_file (const void *buf, DWORD to_write,
DWORD *written, int *err)
{
BOOL ret;
*err = 0;
if (!(ret = WriteFile (get_handle (), buf, to_write, written, 0)))
*err = GetLastError ();
syscall_printf ("%d (err %d) = WriteFile (%d, %d, write %d, written %d, 0)",
ret, *err, get_handle (), buf, to_write, *written);
return ret;
}
int
fhandler_dev_floppy::open (int flags, mode_t)
{
/* The correct size of the buffer would be 512 bytes,
* which is the atomic size, supported by WinNT.
* Unfortunately, the performance is worse than
* access to file system on same device!
* Setting buffer size to a relatively big value
* increases performance by means.
* The new ioctl call with 'rdevio.h' header file
* supports changing this value.
*
* Let's be smart: Let's take a multiplier of typical tar
* and cpio buffer sizes by default!
*/
devbufsiz = 61440L; /* 512L; */
/* The correct size of the buffer would be 512 bytes, which is the atomic
size, supported by WinNT. Unfortunately, the performance is worse than
access to file system on same device! Setting buffer size to a
relatively big value increases performance by means. The new ioctl call
with 'rdevio.h' header file supports changing this value.
Let's try to be smart: Let's take a multiple of typical tar and cpio
buffer sizes by default. */
devbufsiz = 61440L;
int ret = fhandler_dev_raw::open (flags);
if (ret && get_drive_info (NULL))
@ -159,59 +174,244 @@ fhandler_dev_floppy::open (int flags, mode_t)
return ret;
}
int
fhandler_dev_floppy::dup (fhandler_base *child)
{
int ret = fhandler_dev_raw::dup (child);
if (!ret)
{
fhandler_dev_floppy *fhc = (fhandler_dev_floppy *) child;
fhc->drive_size = drive_size;
fhc->bytes_per_sector = bytes_per_sector;
fhc->eom_detected (eom_detected ());
}
return ret;
}
inline _off64_t
fhandler_dev_floppy::get_current_position ()
{
LARGE_INTEGER off = { QuadPart: 0LL };
off.LowPart = SetFilePointer (get_handle (), 0, &off.HighPart, FILE_CURRENT);
return off.QuadPart;
}
void
fhandler_dev_floppy::raw_read (void *ptr, size_t& ulen)
{
DWORD bytes_read = 0;
DWORD read2;
DWORD bytes_to_read;
int ret;
size_t len = ulen;
char *tgt;
char *p = (char *) ptr;
/* Checking a previous end of media */
if (eom_detected () && !lastblk_to_read ())
{
set_errno (ENOSPC);
goto err;
}
if (devbuf)
{
while (len > 0)
{
if (devbufstart < devbufend)
{
bytes_to_read = min (len, devbufend - devbufstart);
debug_printf ("read %d bytes from buffer (rest %d)",
bytes_to_read,
devbufend - devbufstart - bytes_to_read);
memcpy (p, devbuf + devbufstart, bytes_to_read);
len -= bytes_to_read;
p += bytes_to_read;
bytes_read += bytes_to_read;
devbufstart += bytes_to_read;
if (lastblk_to_read ())
{
lastblk_to_read (false);
break;
}
}
if (len > 0)
{
if (len >= devbufsiz)
{
bytes_to_read = (len / bytes_per_sector) * bytes_per_sector;
tgt = p;
}
else
{
tgt = devbuf;
bytes_to_read = devbufsiz;
}
_off64_t current_position = get_current_position ();
if (current_position + bytes_to_read >= drive_size)
bytes_to_read = drive_size - current_position;
if (!bytes_to_read)
{
eom_detected (true);
break;
}
debug_printf ("read %d bytes %s", bytes_to_read,
len < devbufsiz ? "into buffer" : "directly");
if (!read_file (tgt, bytes_to_read, &read2, &ret))
{
if (!IS_EOM (ret))
{
__seterrno ();
goto err;
}
eom_detected (true);
if (!read2)
{
if (!bytes_read)
{
debug_printf ("return -1, set errno to ENOSPC");
set_errno (ENOSPC);
goto err;
}
break;
}
lastblk_to_read (true);
}
if (!read2)
break;
if (tgt == devbuf)
{
devbufstart = 0;
devbufend = read2;
}
else
{
len -= read2;
p += read2;
bytes_read += read2;
}
}
}
}
else if (!read_file (p, len, &bytes_read, &ret))
{
if (!IS_EOM (ret))
{
__seterrno ();
goto err;
}
if (bytes_read)
eom_detected (true);
else
{
debug_printf ("return -1, set errno to ENOSPC");
set_errno (ENOSPC);
goto err;
}
}
ulen = (size_t) bytes_read;
return;
err:
ulen = (size_t) -1;
}
int
fhandler_dev_floppy::raw_write (const void *ptr, size_t len)
{
DWORD bytes_written = 0;
char *p = (char *) ptr;
int ret;
/* Checking a previous end of media on tape */
if (eom_detected ())
{
set_errno (ENOSPC);
return -1;
}
/* Invalidate buffer. */
devbufstart = devbufend = 0;
if (len > 0)
{
if (!write_file (p, len, &bytes_written, &ret))
{
if (!IS_EOM (ret))
{
__seterrno ();
return -1;
}
eom_detected (true);
if (!bytes_written)
{
set_errno (ENOSPC);
return -1;
}
}
}
return bytes_written;
}
_off64_t
fhandler_dev_floppy::lseek (_off64_t offset, int whence)
{
char buf[512];
_off64_t lloffset = offset;
_off64_t sector_aligned_offset;
LARGE_INTEGER sector_aligned_offset;
_off64_t bytes_left;
DWORD low;
LONG high = 0;
if (whence == SEEK_END && drive_size > 0)
if (whence == SEEK_END)
{
lloffset = offset + drive_size;
lloffset += drive_size;
whence = SEEK_SET;
}
else if (whence == SEEK_CUR)
{
lloffset += get_current_position () - (devbufend - devbufstart);
whence = SEEK_SET;
}
if (whence == SEEK_CUR)
{
lloffset += current_position - (devbufend - devbufstart);
whence = SEEK_SET;
}
if (whence != SEEK_SET
|| lloffset < 0
|| drive_size > 0 && lloffset >= drive_size)
if (whence != SEEK_SET || lloffset < 0 || lloffset >= drive_size)
{
set_errno (EINVAL);
return -1;
}
sector_aligned_offset = (lloffset / bytes_per_sector) * bytes_per_sector;
bytes_left = lloffset - sector_aligned_offset;
sector_aligned_offset.QuadPart = (lloffset / bytes_per_sector)
* bytes_per_sector;
bytes_left = lloffset - sector_aligned_offset.QuadPart;
/* Invalidate buffer. */
devbufstart = devbufend = 0;
low = sector_aligned_offset & UINT32_MAX;
high = sector_aligned_offset >> 32;
if (SetFilePointer (get_handle (), low, &high, FILE_BEGIN)
== INVALID_SET_FILE_POINTER && GetLastError ())
sector_aligned_offset.LowPart =
SetFilePointer (get_handle (),
sector_aligned_offset.LowPart,
&sector_aligned_offset.HighPart,
FILE_BEGIN);
if (sector_aligned_offset.LowPart == INVALID_SET_FILE_POINTER
&& GetLastError ())
{
__seterrno ();
return -1;
}
eom_detected (false);
current_position = sector_aligned_offset;
if (bytes_left)
{
size_t len = bytes_left;
raw_read (buf, len);
}
return current_position + bytes_left;
return sector_aligned_offset.QuadPart + bytes_left;
}
int
@ -257,6 +457,18 @@ fhandler_dev_floppy::ioctl (unsigned int cmd, void *buf)
*(int *)buf = bytes_per_sector;
return 0;
}
case RDSETBLK:
/* Just check the restriction that blocksize must be a multiple
of the sector size of the underlying volume sector size,
then fall through to fhandler_dev_raw::ioctl. */
struct rdop *op = (struct rdop *) buf;
if (op->rd_parm % bytes_per_sector)
{
SetLastError (ERROR_INVALID_PARAMETER);
__seterrno ();
return -1;
}
/*FALLTHRUGH*/
default:
return fhandler_dev_raw::ioctl (cmd, buf);
}

235
winsup/cygwin/fhandler_raw.cc
View File

@ -27,52 +27,6 @@
/**********************************************************************/
/* fhandler_dev_raw */
int
fhandler_dev_raw::is_eom (int win_error)
{
return 0;
}
int
fhandler_dev_raw::is_eof (int)
{
return 0;
}
/* Wrapper functions to simplify error handling. */
BOOL
fhandler_dev_raw::write_file (const void *buf, DWORD to_write,
DWORD *written, int *err)
{
BOOL ret;
*err = 0;
if (!(ret = WriteFile (get_handle (), buf, to_write, written, 0)))
*err = GetLastError ();
else
current_position += *written;
syscall_printf ("%d (err %d) = WriteFile (%d, %d, write %d, written %d, 0)",
ret, *err, get_handle (), buf, to_write, *written);
return ret;
}
BOOL
fhandler_dev_raw::read_file (void *buf, DWORD to_read, DWORD *read, int *err)
{
BOOL ret;
*err = 0;
if (!(ret = ReadFile (get_handle (), buf, to_read, read, 0)))
*err = GetLastError ();
else
current_position += *read;
syscall_printf ("%d (err %d) = ReadFile (%d, %d, to_read %d, read %d, 0)",
ret, *err, get_handle (), buf, to_read, *read);
return ret;
}
fhandler_dev_raw::fhandler_dev_raw ()
: fhandler_base (), status ()
{
@ -140,205 +94,20 @@ fhandler_dev_raw::open (int flags, mode_t)
return res;
}
void
fhandler_dev_raw::raw_read (void *ptr, size_t& ulen)
{
DWORD bytes_read = 0;
DWORD read2;
DWORD bytes_to_read;
int ret;
size_t len = ulen;
char *tgt;
char *p = (char *) ptr;
/* Checking a previous end of file */
if (eof_detected () && !lastblk_to_read ())
{
eof_detected (false);
ulen = 0;
return;
}
/* Checking a previous end of media */
if (eom_detected () && !lastblk_to_read ())
{
set_errno (ENOSPC);
goto err;
}
if (devbuf)
{
while (len > 0)
{
if (devbufstart < devbufend)
{
bytes_to_read = min (len, devbufend - devbufstart);
debug_printf ("read %d bytes from buffer (rest %d)",
bytes_to_read,
devbufend - devbufstart - bytes_to_read);
memcpy (p, devbuf + devbufstart, bytes_to_read);
len -= bytes_to_read;
p += bytes_to_read;
bytes_read += bytes_to_read;
devbufstart += bytes_to_read;
if (lastblk_to_read ())
{
lastblk_to_read (false);
break;
}
}
if (len > 0)
{
if (len >= devbufsiz)
{
bytes_to_read = (len / bytes_per_sector) * bytes_per_sector;
if (current_position + bytes_to_read >= drive_size)
bytes_to_read = drive_size - current_position;
tgt = p;
debug_printf ("read %d bytes direct from file",bytes_to_read);
}
else
{
tgt = devbuf;
bytes_to_read = devbufsiz;
if (current_position + bytes_to_read >= drive_size)
bytes_to_read = drive_size - current_position;
debug_printf ("read %d bytes from file into buffer",
bytes_to_read);
}
if (!bytes_to_read)
{
eom_detected (true);
break;
}
if (!read_file (tgt, bytes_to_read, &read2, &ret))
{
if (!is_eof (ret) && !is_eom (ret))
{
__seterrno ();
goto err;
}
if (is_eof (ret))
eof_detected (true);
else
eom_detected (true);
if (!read2)
{
if (!bytes_read && is_eom (ret))
{
debug_printf ("return -1, set errno to ENOSPC");
set_errno (ENOSPC);
goto err;
}
break;
}
lastblk_to_read (true);
}
if (!read2)
break;
if (tgt == devbuf)
{
devbufstart = 0;
devbufend = read2;
}
else
{
len -= read2;
p += read2;
bytes_read += read2;
}
}
}
}
else if (!read_file (p, len, &bytes_read, &ret))
{
if (!is_eof (ret) && !is_eom (ret))
{
__seterrno ();
goto err;
}
if (bytes_read)
{
if (is_eof (ret))
eof_detected (true);
else
eom_detected (true);
}
else if (is_eom (ret))
{
debug_printf ("return -1, set errno to ENOSPC");
set_errno (ENOSPC);
goto err;
}
}
ulen = (size_t) bytes_read;
return;
err:
ulen = (size_t) -1;
}
int
fhandler_dev_raw::raw_write (const void *ptr, size_t len)
{
DWORD bytes_written = 0;
char *p = (char *) ptr;
int ret;
/* Checking a previous end of media on tape */
if (eom_detected ())
{
set_errno (ENOSPC);
return -1;
}
/* Invalidate buffer. */
devbufstart = devbufend = 0;
if (len > 0)
{
if (!write_file (p, len, &bytes_written, &ret))
{
if (!is_eom (ret))
{
__seterrno ();
return -1;
}
eom_detected (true);
if (!bytes_written)
{
set_errno (ENOSPC);
return -1;
}
}
}
return bytes_written;
}
int
fhandler_dev_raw::dup (fhandler_base *child)
{
int ret = fhandler_base::dup (child);
if (! ret)
if (!ret)
{
fhandler_dev_raw *fhc = (fhandler_dev_raw *) child;
fhc->drive_size = drive_size;
fhc->current_position = current_position;
fhc->bytes_per_sector = bytes_per_sector;
fhc->devbufsiz = devbufsiz;
if (devbufsiz > 1L)
fhc->devbuf = new char [devbufsiz];
fhc->devbufstart = 0;
fhc->devbufend = 0;
fhc->eom_detected (eom_detected ());
fhc->eof_detected (eof_detected ());
fhc->lastblk_to_read (false);
}
return ret;
@ -385,8 +154,6 @@ fhandler_dev_raw::ioctl (unsigned int cmd, void *buf)
mop.mt_count = op->rd_parm;
ret = ioctl (MTIOCTOP, &mop);
}
else if (op->rd_parm % bytes_per_sector)
ret = ERROR_INVALID_PARAMETER;
else if (devbuf && op->rd_parm < devbufend - devbufstart)
ret = ERROR_INVALID_PARAMETER;
else if (!devbuf || op->rd_parm != devbufsiz)

93
winsup/cygwin/wincap.cc
View File

@ -59,7 +59,8 @@ static NO_COPY wincaps wincap_unknown = {
has_extended_priority_class:false,
has_guid_volumes:false,
detect_win16_exe:true,
has_null_console_handler_routine:false
has_null_console_handler_routine:false,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_95 = {
@ -110,7 +111,8 @@ static NO_COPY wincaps wincap_95 = {
has_extended_priority_class:false,
has_guid_volumes:false,
detect_win16_exe:true,
has_null_console_handler_routine:false
has_null_console_handler_routine:false,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_95osr2 = {
@ -161,7 +163,8 @@ static NO_COPY wincaps wincap_95osr2 = {
has_extended_priority_class:false,
has_guid_volumes:false,
detect_win16_exe:true,
has_null_console_handler_routine:false
has_null_console_handler_routine:false,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_98 = {
@ -212,7 +215,8 @@ static NO_COPY wincaps wincap_98 = {
has_extended_priority_class:false,
has_guid_volumes:false,
detect_win16_exe:true,
has_null_console_handler_routine:false
has_null_console_handler_routine:false,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_98se = {
@ -263,7 +267,8 @@ static NO_COPY wincaps wincap_98se = {
has_extended_priority_class:false,
has_guid_volumes:false,
detect_win16_exe:true,
has_null_console_handler_routine:false
has_null_console_handler_routine:false,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_me = {
@ -314,7 +319,8 @@ static NO_COPY wincaps wincap_me = {
has_extended_priority_class:false,
has_guid_volumes:false,
detect_win16_exe:true,
has_null_console_handler_routine:false
has_null_console_handler_routine:false,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_nt3 = {
@ -365,7 +371,8 @@ static NO_COPY wincaps wincap_nt3 = {
has_extended_priority_class:false,
has_guid_volumes:false,
detect_win16_exe:false,
has_null_console_handler_routine:true
has_null_console_handler_routine:true,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_nt4 = {
@ -416,7 +423,8 @@ static NO_COPY wincaps wincap_nt4 = {
has_extended_priority_class:false,
has_guid_volumes:false,
detect_win16_exe:false,
has_null_console_handler_routine:true
has_null_console_handler_routine:true,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_nt4sp4 = {
@ -467,7 +475,8 @@ static NO_COPY wincaps wincap_nt4sp4 = {
has_extended_priority_class:false,
has_guid_volumes:false,
detect_win16_exe:false,
has_null_console_handler_routine:true
has_null_console_handler_routine:true,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_2000 = {
@ -518,7 +527,8 @@ static NO_COPY wincaps wincap_2000 = {
has_extended_priority_class:true,
has_guid_volumes:true,
detect_win16_exe:false,
has_null_console_handler_routine:true
has_null_console_handler_routine:true,
has_disk_ex_ioctls:false
};
static NO_COPY wincaps wincap_xp = {
@ -569,7 +579,8 @@ static NO_COPY wincaps wincap_xp = {
has_extended_priority_class:true,
has_guid_volumes:true,
detect_win16_exe:false,
has_null_console_handler_routine:true
has_null_console_handler_routine:true,
has_disk_ex_ioctls:true
};
static NO_COPY wincaps wincap_2003 = {
@ -620,7 +631,60 @@ static NO_COPY wincaps wincap_2003 = {
has_extended_priority_class:true,
has_guid_volumes:true,
detect_win16_exe:false,
has_null_console_handler_routine:true
has_null_console_handler_routine:true,
has_disk_ex_ioctls:true
};
static NO_COPY wincaps wincap_vista = {
lock_file_highword:UINT32_MAX,
chunksize:0,
shared:FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
is_winnt:true,
is_server:true,
access_denied_on_delete:false,
has_delete_on_close:true,
has_page_guard:true,
has_security:true,
has_security_descriptor_control:true,
has_get_process_times:true,
has_lseek_bug:false,
has_lock_file_ex:true,
has_signal_object_and_wait:true,
has_eventlog:true,
has_ip_helper_lib:true,
has_set_handle_information:true,
has_set_handle_information_on_console_handles:true,
supports_smp:true,
map_view_of_file_ex_sucks:false,
altgr_is_ctrl_alt:true,
has_physical_mem_access:true,
has_working_copy_on_write:true,
share_mmaps_only_by_name:false,
virtual_protect_works_on_shared_pages:true,
has_hard_links:true,
can_open_directories:true,
has_move_file_ex:true,
has_negative_pids:false,
has_unreliable_pipes:false,
has_named_pipes:true,
has_try_enter_critical_section:true,
has_raw_devices:true,
has_valid_processorlevel:true,
has_64bit_file_access:true,
has_process_io_counters:true,
supports_reading_modem_output_lines:true,
needs_memory_protection:true,
pty_needs_alloc_console:true,
has_terminal_services:true,
has_switch_to_thread:true,
cant_debug_dll_entry:false,
has_ioctl_storage_get_media_types_ex:true,
start_proc_suspended:false,
has_extended_priority_class:true,
has_guid_volumes:true,
detect_win16_exe:false,
has_null_console_handler_routine:true,
has_disk_ex_ioctls:true
};
wincapc wincap;
@ -676,6 +740,11 @@ wincapc::init ()
caps = &wincap_2003;
}
break;
case 6:
os = "NT";
has_osversioninfoex = true;
caps = &wincap_vista;
break;
default:
os = "??";
caps = &wincap_unknown;

2
winsup/cygwin/wincap.h
View File

@ -61,6 +61,7 @@ struct wincaps
unsigned has_guid_volumes : 1;
unsigned detect_win16_exe : 1;
unsigned has_null_console_handler_routine : 1;
unsigned has_disk_ex_ioctls : 1;
};
class wincapc
@ -126,6 +127,7 @@ public:
bool IMPLEMENT (has_guid_volumes)
bool IMPLEMENT (detect_win16_exe)
bool IMPLEMENT (has_null_console_handler_routine)
bool IMPLEMENT (has_disk_ex_ioctls)
#undef IMPLEMENT
};