diff options
| author | Anand Avati <avati@gluster.com> | 2009-07-07 20:41:59 +0000 |
|---|---|---|
| committer | Anand V. Avati <avati@dev.gluster.com> | 2009-07-07 19:32:18 -0700 |
| commit | 567c0cc97198fbfd525834744b653e958cf140de (patch) | |
| tree | 90c3d5c71b62afa13c2a60fed0ac367386fb6f2c | |
| parent | e54d471444274879a65efaea19f0b69fb0e78b5e (diff) | |
protocol: add functions gf_flags_from_flags and gf_flags_to_flags
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
| -rw-r--r-- | libglusterfs/src/protocol.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/libglusterfs/src/protocol.h b/libglusterfs/src/protocol.h index 0f93a993aa0..fdbaf85c02c 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 */ |