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/*
This file is part of gnunet-fuse.
(C) 2012 Christian Grothoff (and other contributing authors)
gnunet-fuse is free software; you can redistribute it and/or
modify if under the terms of version 2 of the GNU General Public License
as published by the Free Software Foundation.
gnunet-fuse is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* @file fuse/gnunet-fuse.h
* @brief global definitions for gnunet-fuse
* @author Christian Grothoff
* @author Mauricio Günther
*/
#ifndef GNUNET_FUSE_H
#define GNUNET_FUSE_H
#include <gnunet/platform.h>
#include <gnunet/gnunet_util_lib.h>
#include <gnunet/gnunet_directories.h>
#include <gnunet/gnunet_resolver_service.h>
#include <gnunet/gnunet_fs_service.h>
#define FUSE_USE_VERSION 26
#include <fuse.h>
#include "mutex.h"
/**
* Anonymity level to use.
*/
extern unsigned int anonymity_level;
/**
* Configuration to use.
*/
extern const struct GNUNET_CONFIGURATION_Handle *cfg;
/**
* struct containing mapped Path, with URI and other Information like Attributes etc.
*/
struct GNUNET_FUSE_PathInfo
{
/**
* uri to corresponding path
*/
struct GNUNET_FS_Uri *uri;
/**
* meta data to corresponding path (can be NULL)
*/
struct GNUNET_CONTAINER_MetaData *meta;
/**
* pathname
*/
char* path;
/**
* name of temporary file
*/
char* tmpfile;
/**
* file attributes
*/
struct stat stbuf;
/**
* Lock for exclusive access to this struct.
*/
struct GNUNET_Mutex *lock;
/**
* Reference counter.
*/
unsigned int rc;
/**
* Should the file be deleted after the RC hits zero?
*/
int delete_later;
};
/**
* Create a new path info entry in the global map.
*
* @param path path the entry represents
* @param uri URI to use for the path
* @param is_directory GNUNET_YES if this entry is for a directory
* @return existing path entry if one already exists, otherwise
* new path entry with the desired URI; in both cases
* the reference counter has been incremented by 1
*/
struct GNUNET_FUSE_PathInfo *
GNUNET_FUSE_path_info_create (const char *path,
const struct GNUNET_FS_Uri *uri,
int is_directory);
/**
* Obtain an existing path info entry from the global map.
*
* @param path path the entry represents
* @return NULL if no such path entry exists, otherwise
* an entry with incremented reference counter (!)
*/
struct GNUNET_FUSE_PathInfo *
GNUNET_FUSE_path_info_get (const char *path);
/**
* Reduce the reference counter of a path info entry.
*
* @param pi entry to decrement the RC of
*/
void
GNUNET_FUSE_path_info_done (struct GNUNET_FUSE_PathInfo *pi);
/**
* Delete a path info entry from the global map (does not actually
* remove anything from the file system). Also decrements the RC.
*
* @param pi entry to remove
* @return - ENOENT if the file was already deleted, 0 on success
*/
int
GNUNET_FUSE_path_info_delete (struct GNUNET_FUSE_PathInfo *pi);
/* FUSE function files */
int gn_getattr(const char *path, struct stat *stbuf);
int gn_mknod(const char *path, mode_t mode, dev_t rdev);
int gn_mkdir(const char *path, mode_t mode);
int gn_unlink(const char *path);
int gn_rmdir(const char *path);
int gn_rename(const char *from, const char *to);
int gn_truncate(const char *path, off_t size);
int gn_open(const char *path, struct fuse_file_info *fi);
int gn_read(const char *path, char *buf, size_t size, off_t offset,
struct fuse_file_info *fi);
int gn_write(const char *path, const char *buf, size_t size, off_t offset,
struct fuse_file_info *fi);
int gn_release(const char *path, struct fuse_file_info *fi);
int gn_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
off_t offset, struct fuse_file_info *fi);
int gn_utimens(const char *path, const struct timespec ts[2]);
#endif
/* GNUNET_FUSE_H */
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