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

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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
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51
winsup/cygwin/fhandler.h
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@ -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