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Add nice comments to functions. 

(Logical change 1.461)
edge.strict_endians
cantab.net!aia21 2004-07-15 09:41:47 +00:00
parent 203365d140
commit d3007d5542
1 changed files with 38 additions and 0 deletions
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38
libntfs/win32_io.c
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@ -398,6 +398,18 @@ static int ntfs_device_win32_open(struct ntfs_device *dev, int flags)
return 0;
}
/**
* ntfs_device_win32_seek - Change current file position.
* @handle: Pointer the file HADNLE obtained via open.
* @offset: Required offset from the whence anchor.
* @whence: May be one of the following:
* SEEK_SET Offset is relative to file start.
* SEEK_CUR Offset is relative to current position.
* SEEK_END Offset is relative to end of file.
*
* Return 0 if o.k.
* -errno if not, in this case handle is trashed.
*/
static s64 ntfs_device_win32_seek(struct ntfs_device *dev, s64 offset,
int whence)
{
@ -445,6 +457,15 @@ static s64 ntfs_device_win32_seek(struct ntfs_device *dev, s64 offset,
return offset;
}
/**
* ntfs_device_win32_read - Read 'count' bytes from 'dev' into 'buf'.
* @dev: An NTFS_DEVICE obtained via the open command.
* @buf: A pointer to where to put the contents.
* @count: How many bytes should be read.
*
* On success returns the amount of bytes actually read.
* On fail returns -errno.
*/
static s64 ntfs_device_win32_read(struct ntfs_device *dev, void *buf, s64 count)
{
struct win32_fd *fd = (win32_fd *)dev->d_private;
@ -527,6 +548,14 @@ static s64 ntfs_device_win32_read(struct ntfs_device *dev, void *buf, s64 count)
return numread;
}
/**
* ntfs_device_win32_close - Close an open NTFS_DEVICE and
* free internal buffers.
* @dev: An NTFS_DEVICE obtained via the open command.
*
* Return 0 if o.k.
* -errno if not, in this case handle is trashed.
*/
static int ntfs_device_win32_close(struct ntfs_device *dev)
{
struct win32_fd *fd = (win32_fd *)dev->d_private;
@ -580,6 +609,15 @@ static int ntfs_device_win32_sync(struct ntfs_device *dev)
}
}
/**
* ntfs_device_win32_write - Write 'count' bytes from 'buf' into 'dev'.
* @dev: An NTFS_DEVICE obtained via the open command.
* @buf: A pointer to the contents.
* @count: How many bytes should be written.
*
* On success returns the amount of bytes actually written.
* On fail returns -errno.
*/
static s64 ntfs_device_win32_write(struct ntfs_device *dev, const void *buffer,
s64 count)
{