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authorAnand Avati <avati@gluster.com>2009-07-07 20:41:59 +0000
committerAnand V. Avati <avati@dev.gluster.com>2009-07-07 19:32:18 -0700
commit567c0cc97198fbfd525834744b653e958cf140de (patch)
tree90c3d5c71b62afa13c2a60fed0ac367386fb6f2c /libglusterfs/src/protocol.h
parente54d471444274879a65efaea19f0b69fb0e78b5e (diff)
protocol: add functions gf_flags_from_flags and gf_flags_to_flags
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
Diffstat (limited to 'libglusterfs/src/protocol.h')
-rw-r--r--libglusterfs/src/protocol.h108
1 files changed, 108 insertions, 0 deletions
diff --git a/libglusterfs/src/protocol.h b/libglusterfs/src/protocol.h
index 0f93a99..fdbaf85 100644
--- a/libglusterfs/src/protocol.h
+++ b/libglusterfs/src/protocol.h
@@ -208,6 +208,114 @@ gf_timespec_from_timespec (struct gf_timespec *gf_ts, struct timespec *ts)
}
+#define GF_O_ACCMODE 003
+#define GF_O_RDONLY 00
+#define GF_O_WRONLY 01
+#define GF_O_RDWR 02
+#define GF_O_CREAT 0100
+#define GF_O_EXCL 0200
+#define GF_O_NOCTTY 0400
+#define GF_O_TRUNC 01000
+#define GF_O_APPEND 02000
+#define GF_O_NONBLOCK 04000
+#define GF_O_SYNC 010000
+#define GF_O_ASYNC 020000
+
+#define GF_O_DIRECT 040000
+#define GF_O_DIRECTORY 0200000
+#define GF_O_NOFOLLOW 0400000
+#define GF_O_NOATIME 01000000
+#define GF_O_CLOEXEC 02000000
+
+#define GF_O_LARGEFILE 0100000
+
+#define XLATE_BIT(from, to, bit) do { \
+ if (from & bit) \
+ to = to | GF_##bit; \
+ } while (0)
+
+#define UNXLATE_BIT(from, to, bit) do { \
+ if (from & GF_##bit) \
+ to = to | bit; \
+ } while (0)
+
+#define XLATE_ACCESSMODE(from, to) do { \
+ switch (from & O_ACCMODE) { \
+ case O_RDONLY: to |= GF_O_RDONLY; \
+ break; \
+ case O_WRONLY: to |= GF_O_WRONLY; \
+ break; \
+ case O_RDWR: to |= GF_O_RDWR; \
+ break; \
+ } \
+ } while (0)
+
+#define UNXLATE_ACCESSMODE(from, to) do { \
+ switch (from & GF_O_ACCMODE) { \
+ case GF_O_RDONLY: to |= O_RDONLY; \
+ break; \
+ case GF_O_WRONLY: to |= O_WRONLY; \
+ break; \
+ case GF_O_RDWR: to |= O_RDWR; \
+ break; \
+ } \
+ } while (0)
+
+static inline uint32_t
+gf_flags_from_flags (uint32_t flags)
+{
+ uint32_t gf_flags = 0;
+
+ XLATE_ACCESSMODE (flags, gf_flags);
+
+ XLATE_BIT (flags, gf_flags, O_CREAT);
+ XLATE_BIT (flags, gf_flags, O_EXCL);
+ XLATE_BIT (flags, gf_flags, O_NOCTTY);
+ XLATE_BIT (flags, gf_flags, O_TRUNC);
+ XLATE_BIT (flags, gf_flags, O_APPEND);
+ XLATE_BIT (flags, gf_flags, O_NONBLOCK);
+ XLATE_BIT (flags, gf_flags, O_SYNC);
+ XLATE_BIT (flags, gf_flags, O_ASYNC);
+
+ XLATE_BIT (flags, gf_flags, O_DIRECT);
+ XLATE_BIT (flags, gf_flags, O_DIRECTORY);
+ XLATE_BIT (flags, gf_flags, O_NOFOLLOW);
+ XLATE_BIT (flags, gf_flags, O_NOATIME);
+ XLATE_BIT (flags, gf_flags, O_CLOEXEC);
+
+ XLATE_BIT (flags, gf_flags, O_LARGEFILE);
+
+ return gf_flags;
+}
+
+static inline uint32_t
+gf_flags_to_flags (uint32_t gf_flags)
+{
+ uint32_t flags = 0;
+
+ UNXLATE_ACCESSMODE (gf_flags, flags);
+
+ UNXLATE_BIT (gf_flags, flags, O_CREAT);
+ UNXLATE_BIT (gf_flags, flags, O_EXCL);
+ UNXLATE_BIT (gf_flags, flags, O_NOCTTY);
+ UNXLATE_BIT (gf_flags, flags, O_TRUNC);
+ UNXLATE_BIT (gf_flags, flags, O_APPEND);
+ UNXLATE_BIT (gf_flags, flags, O_NONBLOCK);
+ UNXLATE_BIT (gf_flags, flags, O_SYNC);
+ UNXLATE_BIT (gf_flags, flags, O_ASYNC);
+
+ UNXLATE_BIT (gf_flags, flags, O_DIRECT);
+ UNXLATE_BIT (gf_flags, flags, O_DIRECTORY);
+ UNXLATE_BIT (gf_flags, flags, O_NOFOLLOW);
+ UNXLATE_BIT (gf_flags, flags, O_NOATIME);
+ UNXLATE_BIT (gf_flags, flags, O_CLOEXEC);
+
+ UNXLATE_BIT (gf_flags, flags, O_LARGEFILE);
+
+ return flags;
+}
+
+
typedef struct {
uint64_t ino;
char path[0]; /* NULL terminated */