python fuse 记录
[FUSE https://zh.wikipedia.org/wiki/FUSE]
常用fuse api方法
struct fuse_operations {
int (*getattr) (const char *, struct stat *);
int (*readlink) (const char *, char *, size_t);
int (*getdir) (const char *, fuse_dirh_t, fuse_dirfil_t);
int (*mknod) (const char *, mode_t, dev_t);
int (*mkdir) (const char *, mode_t);
int (*unlink) (const char *);
int (*rmdir) (const char *);
int (*symlink) (const char *, const char *);
int (*rename) (const char *, const char *);
int (*link) (const char *, const char *);
int (*chmod) (const char *, mode_t);
int (*chown) (const char *, uid_t, gid_t);
int (*truncate) (const char *, off_t);
int (*utime) (const char *, struct utimbuf *);
int (*open) (const char *, struct fuse_file_info *);
int (*read) (const char *, char *, size_t, off_t, struct fuse_file_info *);
int (*write) (const char *, const char *, size_t, off_t,struct fuse_file_info *);
int (*statfs) (const char *, struct statfs *);
int (*flush) (const char *, struct fuse_file_info *);
int (*release) (const char *, struct fuse_file_info *);
int (*fsync) (const char *, int, struct fuse_file_info *);
int (*setxattr) (const char *, const char *, const char *, size_t, int);
int (*getxattr) (const char *, const char *, char *, size_t);
int (*listxattr) (const char *, char *, size_t);
int (*removexattr) (const char *, const char *);
};
python fuse实现需要注意的点
readlink // 返回的是链接的路径,字符串
rename // 无视目标路径的是否存在,直接rename过去
big_writes,large_read 对性能的影响并没有太大帮助.
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