diff options
Diffstat (limited to 'include/fuse_common.h')
| -rw-r--r-- | include/fuse_common.h | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/include/fuse_common.h b/include/fuse_common.h index 83c9dee..5cf9fee 100644 --- a/include/fuse_common.h +++ b/include/fuse_common.h @@ -32,14 +32,24 @@ extern "C" { #endif /** - * Information about open files + * Information about an open file. + * + * File Handles are created by the open, opendir, and create methods and closed + * by the release and releasedir methods. Multiple file handles may be + * concurrently open for the same file. Generally, a client will create one + * file handle per file descriptor, though in some cases multiple file + * descriptors can share a single file handle. */ struct fuse_file_info { /** Open flags. Available in open() and release() */ int flags; - /** In case of a write operation indicates if this was caused by a - writepage */ + /** In case of a write operation indicates if this was caused + by a delayed write from the page cache. If so, then the + context's pid, uid, and gid fields will not be valid, and + the *fh* value may not match the *fh* value that would + have been sent with the corresponding individual write + requests if write caching had been disabled. */ unsigned int writepage : 1; /** Can be filled in by open, to use direct I/O on this file. */ @@ -67,8 +77,9 @@ struct fuse_file_info { /** Padding. Do not use*/ unsigned int padding : 27; - /** File handle. May be filled in by filesystem in open(). - Available in all other file operations */ + /** File handle id. May be filled in by filesystem in create, + * open, and opendir(). Available in most other file operations on the + * same file handle. */ uint64_t fh; /** Lock owner id. Available in locking operations and flush */ |