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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
#define FUSE_USE_VERSION 26
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <err.h>
#include <sys/types.h>
#include <dirent.h>
#include <fuse.h>
#include <sys/param.h>
#include <sys/uio.h>
#include <unistd.h>
#include <tag_c.h>
#include <musicfs.h>
#include <debug.h>
char musicpath[MAXPATHLEN]; // = "/home/lulf/dev/musicfs/music";
char *logpath = "/home/lulf/dev/musicfs/musicfs.log";
static int mfs_getattr (const char *path, struct stat *stbuf)
{
struct file_data fd;
fd.fd = -1;
fd.found = 0;
int status = 0;
memset (stbuf, 0, sizeof (struct stat));
if (strcmp (path, "/") == 0) {
stbuf->st_mode = S_IFDIR | 0755;
stbuf->st_nlink = 2;
return 0;
}
enum mfs_filetype type = mfs_get_filetype(path);
switch (type) {
case MFS_DIRECTORY:
stbuf->st_mode = S_IFDIR | 0444;
stbuf->st_nlink = 1;
stbuf->st_size = 12;
return 0;
case MFS_FILE:
status = mfs_file_data_for_path(path, &fd);
if (status != 0)
return (status);
if (!fd.found)
return (-ENOENT);
if (fd.fd < 0)
return (-EIO);
if (fstat(fd.fd, stbuf) == 0)
return (0);
else
return (-ENOENT);
case MFS_NOTFOUND:
default:
return -ENOENT;
}
}
static int mfs_readdir (const char *path, void *buf, fuse_fill_dir_t filler,
off_t offset, struct fuse_file_info *fi)
{
struct filler_data fd;
struct lookuphandle *lh;
filler (buf, ".", NULL, 0);
filler (buf, "..", NULL, 0);
fd.buf = buf;
fd.filler = filler;
if (!strcmp(path, "/")) {
filler(buf, "Artists", NULL, 0);
filler(buf, "Genres", NULL, 0);
filler(buf, "Tracks", NULL, 0);
filler(buf, "Albums", NULL, 0);
return (0);
}
/*
* 1. Parse the path.
* 2. Find the mp3s that matches the tags given from the path.
* 3. Return the list of those mp3s.
*/
if (strncmp(path, "/Artists", 8) == 0) {
mfs_lookup_artist(path, &fd);
return (0);
} else if (strncmp(path, "/Genres", 7) == 0) {
mfs_lookup_genre(path, &fd);
return (0);
} else if (strcmp(path, "/Tracks") == 0) {
lh = mfs_lookup_start(0, &fd, mfs_lookup_list,
"SELECT DISTINCT artistname||' - '||title||'.'||extension "
"FROM song");
mfs_lookup_finish(lh);
return (0);
} else if (strncmp(path, "/Albums", 7) == 0) {
mfs_lookup_album(path, &fd);
return (0);
}
return (-ENOENT);
}
static int mfs_open (const char *path, struct fuse_file_info *fi)
{
struct file_data fd;
fd.fd = -1;
fd.found = 0;
int status = mfs_file_data_for_path(path, &fd);
if (status != 0)
return (status);
if (!fd.found)
return (-ENOENT);
if (fd.fd < 0)
return (-EIO);
close(fd.fd);
return (0);
/*
* 1. Have a lookup cache for names?.
* Parse Genre, Album, Artist etc.
* 2. Find MP3s that match. XXX what do we do with duplicates? just
* return the first match?
* 3. Put the mnode of the mp3 in our cache.
* 4. Signal in mnode that the mp3 is being read?
*/
}
static int mfs_read (const char *path, char *buf, size_t size, off_t offset,
struct fuse_file_info *fi)
{
struct file_data fd;
fd.fd = -1;
fd.found = 0;
size_t bytes;
int status = mfs_file_data_for_path(path, &fd);
if (status != 0)
return (status);
if (!fd.found)
return (-ENOENT);
if (fd.fd < 0)
return (-EIO);
lseek(fd.fd, offset, SEEK_CUR);
bytes = read(fd.fd, buf, size);
close(fd.fd);
return (bytes);
/*
* 1. Find the mnode given the path. If not in cache, read through mp3
* list to find it.
* 2. Read the offset of the mp3 and return the data.
*/
}
static struct fuse_operations mfs_ops = {
.getattr = mfs_getattr,
.readdir = mfs_readdir,
.open = mfs_open,
.read = mfs_read,
};
static int musicfs_opt_proc (void *data, const char *arg, int key,
struct fuse_args *outargs)
{
static int musicpath_set = 0;
if (key == FUSE_OPT_KEY_NONOPT && !musicpath_set) {
/* The source directory isn't already set, let's do it */
strcpy(musicpath, arg);
musicpath_set = 1;
return (0);
}
return (1);
}
int
mfs_run(int argc, char **argv)
{
int ret;
/*
* XXX: Build index of mp3's.
*/
/* Update tables. */
if (argc < 2) {
fprintf(stderr, "Usage: %s <musicfolder> <mountpoint>\n", argv[0]);
return (-1);
}
struct fuse_args args = FUSE_ARGS_INIT (argc, argv);
if (fuse_opt_parse(&args, NULL, NULL, musicfs_opt_proc) != 0)
exit (1);
DEBUG("musicpath: %s\n", musicpath);
mfs_initscan(musicpath);
ret = 0;
ret = fuse_main(args.argc, args.argv, &mfs_ops, NULL);
return (ret);
}
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