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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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11
winsup/cygwin/fhandler_zero.cc
View File

@ -1,6 +1,6 @@
/* fhandler_dev_zero.cc: code to access /dev/zero
Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009 Red Hat, Inc.
Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009, 2013 Red Hat, Inc.
Written by DJ Delorie (dj@cygnus.com)
@ -21,15 +21,6 @@ fhandler_dev_zero::fhandler_dev_zero ()
{
}
int
fhandler_dev_zero::open (int flags, mode_t)
{
set_flags ((flags & ~O_TEXT) | O_BINARY);
nohandle (true);
set_open_status ();
return 1;
}
ssize_t __stdcall
fhandler_dev_zero::write (const void *, size_t len)
{