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* devices.in (dev_storage): Map /dev/zero and /dev/full to \Device\Null.

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* devices.cc: Regenerate.
	* dtable.h (struct dtable): Make fhandler_base friend, rather
	than fhandler_disk_file.
	* fhandler.cc (fhandler_base::open_with_arch): Create unique id.
	(fhandler_base::cleanup): Call del_my_locks.
	(fhandler_base::fcntl): Handle F_GETLK, F_SETLK and F_SETLKW.
	* fhandler.h (fhandler_base::get_dev): Return real device number.
	(fhandler_base::set_unique_id): New inline method.
	(fhandler_disk_file::lock): Drop declaration.
	(fhandler_disk_file::get_dev): New method, return pc.fs_serial_number.
	(fhandler_dev_zero::open): Drop declaration.
	* fhandler_disk_file.cc (fhandler_disk_file::close): Move
	del_my_locks call to fhandler_base::open_with_arch.
	(fhandler_disk_file::fcntl): Move handling of locking commands to
	fhandler_base::fcntl.
	(fhandler_base::open_fs): Drop call to NtAllocateLocallyUniqueId.
	* fhandler_zero.cc (fhandler_dev_zero::open): Remove so that default
	fhandler_base::open is used to open \Device\Null.
	* flock.cc (fixup_lockf_after_exec): Finding a single fhandler is
	enough here.
	(fhandler_base::lock): Replace fhandler_disk_file::lock.  Refuse to lock
	nohandle devices.  Handle read/write test using POSIX flags.  Explain
	why.  Never fail on SEEK_CUR or SEEK_END, rather assume position 0,
	just as Linux.
	* net.cc (fdsock): Create unique id.
This commit is contained in:
Corinna Vinschen
2013-10-24 09:41:17 +00:00
parent 72a386373e
commit 95ff6fc6da
11 changed files with 109 additions and 64 deletions
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4
winsup/cygwin/devices.cc
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@@ -243,7 +243,7 @@ const _RDATA device dev_storage[] =
{"/dev/fd13", BRACK(FHDEV(DEV_FLOPPY_MAJOR, 13)), "\\Device\\Floppy13", exists_ntdev, S_IFBLK, true},
{"/dev/fd14", BRACK(FHDEV(DEV_FLOPPY_MAJOR, 14)), "\\Device\\Floppy14", exists_ntdev, S_IFBLK, true},
{"/dev/fd15", BRACK(FHDEV(DEV_FLOPPY_MAJOR, 15)), "\\Device\\Floppy15", exists_ntdev, S_IFBLK, true},
{"/dev/full", BRACK(FH_FULL), "/dev/full", exists, S_IFCHR, true},
{"/dev/full", BRACK(FH_FULL), "\\Device\\Null", exists_ntdev, S_IFCHR, true},
{"/dev/kmsg", BRACK(FH_KMSG), "\\Device\\MailSlot\\cygwin\\dev\\kmsg", exists_ntdev, S_IFCHR, true},
{"/dev/nst0", BRACK(FHDEV(DEV_TAPE_MAJOR, 128)), "\\Device\\Tape0", exists_ntdev, S_IFBLK, true},
{"/dev/nst1", BRACK(FHDEV(DEV_TAPE_MAJOR, 129)), "\\Device\\Tape1", exists_ntdev, S_IFBLK, true},
@@ -2715,7 +2715,7 @@ const _RDATA device dev_storage[] =
{"/dev/ttyS63", BRACK(FHDEV(DEV_SERIAL_MAJOR, 63)), "\\??\\COM64", exists_ntdev, S_IFCHR, true},
{"/dev/urandom", BRACK(FH_URANDOM), "/dev/urandom", exists, S_IFCHR, true},
{"/dev/windows", BRACK(FH_WINDOWS), "/dev/windows", exists, S_IFCHR, true},
{"/dev/zero", BRACK(FH_ZERO), "/dev/zero", exists, S_IFCHR, true},
{"/dev/zero", BRACK(FH_ZERO), "\\Device\\Null", exists_ntdev, S_IFCHR, true},
{":fifo", BRACK(FH_FIFO), "/dev/fifo", exists_internal, S_IFCHR, false},
{":pipe", BRACK(FH_PIPE), "/dev/pipe", exists_internal, S_IFCHR, false},
{":ptym0", BRACK(FHDEV(DEV_PTYM_MAJOR, 0)), "/dev/ptym0", exists_internal, S_IFCHR, false},