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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 <tag_c.h>
#include <mp3fs.h>
#include <debug.h>
char musicpath[MAXPATHLEN]; // = "/home/lulf/dev/mp3fs/music";
char *logpath = "/home/lulf/dev/mp3fs/mp3fs.log";
static int mp3_getattr (const char *path, struct stat *stbuf)
{
int tokens;
memset (stbuf, 0, sizeof (struct stat));
if (strcmp (path, "/") == 0) {
stbuf->st_mode = S_IFDIR | 0755;
stbuf->st_nlink = 2;
return 0;
}
if (strcmp(path, "/Artists") == 0 ||
strcmp(path, "/Genres") == 0 ||
strcmp(path, "/Tracks") == 0 ||
strcmp(path, "/Albums") == 0) {
stbuf->st_mode = S_IFDIR | 0444;
stbuf->st_nlink = 1;
stbuf->st_size = 12;
return 0;
}
tokens = mp3_numtoken(path);
if (tokens == 2) {
stbuf->st_mode = S_IFDIR | 0444;
stbuf->st_nlink = 1;
stbuf->st_size = 12;
return 0;
} else if (tokens == 3) {
stbuf->st_mode = S_IFDIR | 0444;
stbuf->st_nlink = 1;
stbuf->st_size = 12;
return 0;
} else if (tokens == 4) {
stbuf->st_mode = S_IFREG | 0644;
stbuf->st_nlink = 1;
stbuf->st_size = 512;
return 0;
}
return -ENOENT;
}
static int mp3_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) {
mp3_lookup_artist(path, &fd);
return (0);
} else if (strncmp(path, "/Genres", 7) == 0) {
mp3_lookup_genre(path, &fd);
return (0);
} else if (strcmp(path, "/Tracks") == 0) {
lh = mp3_lookup_start(0, &fd, mp3_lookup_list,
"SELECT title FROM song");
mp3_lookup_finish(lh);
return (0);
} else if (strcmp(path, "/Albums") == 0) {
lh = mp3_lookup_start(0, &fd, mp3_lookup_list,
"SELECT DISTINCT album FROM song");
mp3_lookup_finish(lh);
return (0);
}
return (-ENOENT);
}
static int mp3_open (const char *path, struct fuse_file_info *fi)
{
if (strcmp (path, "/Tracks") == 0)
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?
*/
return -ENOENT;
}
static int mp3_read (const char *path, char *buf, size_t size, off_t offset,
struct fuse_file_info *fi)
{
if (strcmp (path, "/Artists") == 0) {
memcpy (buf, "Oh you wish\n", 12);
return 12;
}
/*
* 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.
*/
return -ENOENT;
}
static struct fuse_operations mp3_ops = {
.getattr = mp3_getattr,
.readdir = mp3_readdir,
.open = mp3_open,
.read = mp3_read,
};
static int mp3fs_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
mp3_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, mp3fs_opt_proc) != 0)
exit (1);
DEBUG("musicpath: %s\n", musicpath);
mp3_initscan(musicpath);
ret = 0;
ret = fuse_main(args.argc, args.argv, &mp3_ops, NULL);
return (ret);
}
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