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* fhandler.h (fhandler_dev::open): Declare.

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(fhandler_dev::close): Declare.
	(fhandler_dev::fstat): Declare.
	(fhandler_dev::fstatvfs): Declare.
	(fhandler_cygdrive::fstatvfs): Declare.
	* fhandler_dev.cc (fhandler_dev::open): New method.
	(fhandler_dev::close): Ditto.
	(fhandler_dev::fstat): Ditto.
	(fhandler_dev::fstatvfs): Ditto.
	* fhandler_disk_file.cc (fhandler_base::fstat_helper): Don't fill
	st_rdev.
	(fhandler_cygdrive::fstatvfs): New method.
	* path.h (path_conv::fs_got_fs): New method.
	* mount.h (fs_info::got_fs): Change type to bool, make public.
This commit is contained in:
Corinna Vinschen
2012-04-02 11:08:07 +00:00
parent 5346e8aebb
commit da8274643c
6 changed files with 113 additions and 3 deletions
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76
winsup/cygwin/fhandler_dev.cc
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@ -10,6 +10,7 @@ details. */
#include "winsup.h"
#include <stdlib.h>
#include <sys/statvfs.h>
#include "path.h"
#include "fhandler.h"
#include "dtable.h"
@ -35,6 +36,81 @@ fhandler_dev::fhandler_dev () :
{
}
int
fhandler_dev::open (int flags, mode_t mode)
{
if ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
{
set_errno (EEXIST);
return 0;
}
if (flags & O_WRONLY)
{
set_errno (EISDIR);
return 0;
}
int ret = fhandler_disk_file::open (flags, mode);
if (!ret)
{
flags |= O_DIROPEN;
set_flags (flags);
nohandle (true);
}
return 1;
}
int
fhandler_dev::close ()
{
if (nohandle ())
return 0;
return fhandler_disk_file::close ();
}
int
fhandler_dev::fstat (struct __stat64 *st)
{
/* If /dev really exists on disk, return correct disk information. */
if (pc.fs_got_fs ())
return fhandler_disk_file::fstat (st);
/* Otherwise fake virtual filesystem. */
fhandler_base::fstat (st);
st->st_ino = 2;
st->st_mode = S_IFDIR | STD_RBITS | STD_XBITS;
st->st_nlink = 1;
return 0;
}
int __stdcall
fhandler_dev::fstatvfs (struct statvfs *sfs)
{
int ret = -1, opened = 0;
HANDLE fh = get_handle ();
if (!fh && !nohandle ())
{
if (!open (O_RDONLY, 0))
return -1;
opened = 1;
}
if (!nohandle ())
{
ret = fhandler_disk_file::fstatvfs (sfs);
goto out;
}
/* Virtual file system. Just return an empty buffer with a few values
set to something useful. Just as on Linux. */
memset (sfs, 0, sizeof (*sfs));
sfs->f_bsize = sfs->f_frsize = 4096;
sfs->f_namemax = NAME_MAX;
ret = 0;
out:
if (opened)
close ();
return ret;
}
DIR *
fhandler_dev::opendir (int fd)
{