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Handle up to 63 partitions per drive

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Revamp device parsing code.  Introducing support for more partitions
into the shilka-generated parser has the unfortunate side-effect of
raising the size of the DLL by almost 2 Megs.  Therefore we split out
the handling for /dev/sdXY devices into a tiny bit of hand-written
code.

While at it, remove some unused cruft from devices.* and generally
clean up the device class to provide access methods instead of direct
access to members.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2016-06-23 16:56:41 +02:00
parent bceb8ebebb
commit b2867a68b9
21 changed files with 5268 additions and 40170 deletions
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5
winsup/cygwin/fhandler_floppy.cc
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@@ -159,8 +159,9 @@ fhandler_dev_floppy::lock_partition (DWORD to_write)
/* The simple case. We have only a single partition open anyway.
Try to lock the partition so that a subsequent write succeeds.
If there's some file handle open on one of the affected partitions,
this fails, but that's how it works on Vista and later... */
if (get_minor () % 16 != 0)
this fails, but that's how it works on Vista and later...
Only DEV_SD7_MAJOR and less can point to partition 0. */
if (get_major () <= DEV_SD7_MAJOR && get_minor () % 16 != 0)
{
if (!DeviceIoControl (get_handle (), FSCTL_LOCK_VOLUME,
NULL, 0, NULL, 0, &bytes_read, NULL))