Re: [PATCH 4/9] fsdev: Add missing definitions for Windows in file-op-9p.h

[Christian Schoenebeck]

On Montag, 25. April 2022 16:27:00 CEST Bin Meng wrote:
> From: Guohuai Shi <guohuai.shi@windriver.com>
> 
> Add uid_t, gid_t and struct statfs definitions, which are currently
> missing from Windows headers, but are required when we add 9p file
> system support for Windows in later patches.
> 
> Signed-off-by: Guohuai Shi <guohuai.shi@windriver.com>
> Signed-off-by: Bin Meng <bin.meng@windriver.com>
> ---
> 
>  fsdev/file-op-9p.h | 33 +++++++++++++++++++++++++++++++++
>  1 file changed, 33 insertions(+)
> 
> diff --git a/fsdev/file-op-9p.h b/fsdev/file-op-9p.h
> index 4997677460..7d9a736b66 100644
> --- a/fsdev/file-op-9p.h
> +++ b/fsdev/file-op-9p.h
> @@ -27,6 +27,39 @@
>  # include <sys/mount.h>
>  #endif
> 
> +#ifdef CONFIG_WIN32
> +
> +/* POSIX structure not defined in Windows */
> +
> +typedef uint32_t uid_t;
> +typedef uint32_t gid_t;
> +
> +/* from http://man7.org/linux/man-pages/man2/statfs.2.html */
> +typedef uint32_t __fsword_t;
> +typedef uint32_t fsblkcnt_t;
> +typedef uint32_t fsfilcnt_t;
> +
> +/* from linux/include/uapi/asm-generic/posix_types.h */
> +typedef struct {
> +    long __val[2];
> +} fsid_t;
> +
> +struct statfs {
> +    __fsword_t f_type;
> +    __fsword_t f_bsize;
> +    fsblkcnt_t f_blocks;
> +    fsblkcnt_t f_bfree;
> +    fsblkcnt_t f_bavail;
> +    fsfilcnt_t f_files;
> +    fsfilcnt_t f_ffree;
> +    fsid_t f_fsid;
> +    __fsword_t f_namelen;
> +    __fsword_t f_frsize;
> +    __fsword_t f_flags;
> +};
> +
> +#endif /* CONFIG_WIN32 */
> +
>  #define SM_LOCAL_MODE_BITS    0600
>  #define SM_LOCAL_DIR_MODE_BITS    0700

I don't think this header file is the right place to add these missing POSIX 
types. I would add them to 9p-util-windows.h or something like that.

Best regards,
Christian Schoenebeck