diff options
Diffstat (limited to 'src/systems.h')
| -rw-r--r-- | src/systems.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/systems.h b/src/systems.h index dd8cfa7..6725471 100644 --- a/src/systems.h +++ b/src/systems.h @@ -77,6 +77,32 @@ /* Assume it is done like System V. */ +#if defined(F_SETLK64) && (defined(_LARGE_FILES) || _FILE_OFFSET_BITS == 64) +#define UNLOCK_FILE(dbf) \ + { \ + struct flock64 flock; \ + flock.l_type = F_UNLCK; \ + flock.l_whence = SEEK_SET; \ + flock.l_start = flock.l_len = 0L; \ + fcntl (dbf->desc, F_SETLK64, &flock); \ + } +#define READLOCK_FILE(dbf) \ + { \ + struct flock64 flock; \ + flock.l_type = F_RDLCK; \ + flock.l_whence = SEEK_SET; \ + flock.l_start = flock.l_len = 0L; \ + lock_val = fcntl (dbf->desc, F_SETLK64, &flock); \ + } +#define WRITELOCK_FILE(dbf) \ + { \ + struct flock64 flock; \ + flock.l_type = F_WRLCK; \ + flock.l_whence = SEEK_SET; \ + flock.l_start = flock.l_len = 0L; \ + lock_val = fcntl (dbf->desc, F_SETLK64, &flock); \ + } +#else #define UNLOCK_FILE(dbf) \ { \ struct flock flock; \ @@ -103,6 +129,8 @@ } #endif +#endif + /* Default block size. Some systems do not have blocksize in their stat record. This code uses the BSD blocksize from stat. */ |