libfuse
Data Fields
fuse_entry_param Struct Reference

#include <fuse_lowlevel.h>

Data Fields

fuse_ino_t ino
 
uint64_t generation
 
struct stat attr
 
double attr_timeout
 
double entry_timeout
 

Detailed Description

Directory entry parameters supplied to fuse_reply_entry()

Field Documentation

struct stat fuse_entry_param::attr

Inode attributes.

Even if attr_timeout == 0, attr must be correct. For example, for open(), FUSE uses attr.st_size from lookup() to determine how many bytes to request. If this value is not correct, incorrect data will be returned.

double fuse_entry_param::attr_timeout

Validity timeout (in seconds) for the attributes

double fuse_entry_param::entry_timeout

Validity timeout (in seconds) for the name

uint64_t fuse_entry_param::generation

Generation number for this entry.

If the file system will be exported over NFS, the ino/generation pairs need to be unique over the file system's lifetime (rather than just the mount time). So if the file system reuses an inode after it has been deleted, it must assign a new, previously unused generation number to the inode at the same time.

The generation must be non-zero, otherwise FUSE will treat it as an error.

fuse_ino_t fuse_entry_param::ino

Unique inode number

In lookup, zero means negative entry (from version 2.5) Returning ENOENT also means negative entry, but by setting zero ino the kernel may cache negative entries for entry_timeout seconds.


The documentation for this struct was generated from the following file: