query.h

/*
  mysqlfs - MySQL Filesystem
  Copyright (C) 2006 Tsukasa Hamano <code@cuspy.org>
  $Id: query.h 55 2009-07-12 22:23:33Z chickenandporn $

  This program can be distributed under the terms of the GNU GPL.
  See the file COPYING.
*/

/** @file */

/**
 * Scratchpad for a set of results of a query regarding the blocks of a file.
 * Used by query_truncate(), query_write(), and query_read() via
 * fill_data_blocks_info(), this function records some ranges of blocks for
 * use in mass-write, read, or deletion.
 *
 * Stunning description, I'm sure.
 */
struct data_blocks_info {
    unsigned long	seq_first,	/**< Sequence ID of first block */
			seq_last;	/**< sequence ID of last block */
    size_t		length_first,	/**< Length of first datablock for reading / writing.  */
			length_last;	/**< Length of last datablock after reading / writing. */
    off_t		offset_first;	/**< Offset in 1st block.  */
};

long query_inode(MYSQL *mysql, const char* path);
int query_inode_full(MYSQL *mysql, const char* path, char *name, size_t name_len,
		     long *inode, long *parent, long *nlinks);
int query_getattr(MYSQL *mysql, const char *path, struct stat *stbuf);
int query_mkdirentry(MYSQL *mysql, long inode, const char *name, long parent);
int query_rmdirentry(MYSQL *mysql, const char *name, long inode, long parent);
long query_mknod(MYSQL *mysql, const char *path, mode_t mode, dev_t rdev,
                long parent, int alloc_data);
long query_mkdir(MYSQL *mysql, const char* path, mode_t mode, long parent);
int query_readdir(MYSQL *mysql, long inode, void *buf, fuse_fill_dir_t filler, int flag);
int query_read(MYSQL *mysql, long inode, const char* buf, size_t size, off_t offset);
int query_write(MYSQL *mysql, long inode, const char* buf, size_t size, off_t offset);
int query_truncate(MYSQL *mysql, long inode, off_t length);

int query_symlink(MYSQL *mysql, const char* from, const char* to);	/**< NOT IMPLEMENTED NOR CALLED */
int query_readlink(MYSQL *mysql, const char* path);			/**< NOT IMPLEMENTED NOR CALLED */

int query_rename(MYSQL *mysql, const char* from, const char* to);

int query_chmod(MYSQL *mysql, long inode, mode_t mode);
int query_chown(MYSQL *mysql, long inode, uid_t uid, gid_t gid);
int query_utime(MYSQL *mysql, long inode, const struct timespec tv[2]);

ssize_t query_size(MYSQL *mysql, long inode);
ssize_t query_size_block(MYSQL *mysql, long inode, unsigned long seq);

int query_inuse_inc(MYSQL *mysql, long inode, int increment);
int query_set_deleted(MYSQL *mysql, long inode);
int query_purge_deleted(MYSQL *mysql, long inode);

int query_fsck(MYSQL *mysql);