[RFC PATCH 1/4] fsdev: Add missing definitions for Windows in file-op-9p.h

[Bin Meng <bmeng.cn@gmail.com>]

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
 
-- 
2.25.1