mpd/src/playlist_mapper.c
Max Kellermann 754f26a97c input_stream: non-blocking I/O
Add GMutex, GCond attributes which will be used by callers to
conditionally wait on the stream.

Remove the (now-useless) plugin method buffer(), wait on GCond
instead.  Lock the input_stream before each method call.  Do the same
with the playlist plugins.
2011-09-16 21:22:13 +02:00

111 lines
2.8 KiB
C

/*
* Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "playlist_mapper.h"
#include "playlist_list.h"
#include "stored_playlist.h"
#include "mapper.h"
#include "uri.h"
#include <assert.h>
static struct playlist_provider *
playlist_open_path(const char *path_fs, GMutex *mutex, GCond *cond,
struct input_stream **is_r)
{
struct playlist_provider *playlist;
playlist = playlist_list_open_uri(path_fs, mutex, cond);
if (playlist != NULL)
*is_r = NULL;
else
playlist = playlist_list_open_path(path_fs, mutex, cond, is_r);
return playlist;
}
/**
* Load a playlist from the configured playlist directory.
*/
static struct playlist_provider *
playlist_open_in_playlist_dir(const char *uri, GMutex *mutex, GCond *cond,
struct input_stream **is_r)
{
char *path_fs;
assert(spl_valid_name(uri));
const char *playlist_directory_fs = map_spl_path();
if (playlist_directory_fs == NULL)
return NULL;
path_fs = g_build_filename(playlist_directory_fs, uri, NULL);
struct playlist_provider *playlist =
playlist_open_path(path_fs, mutex, cond, is_r);
g_free(path_fs);
return playlist;
}
/**
* Load a playlist from the configured music directory.
*/
static struct playlist_provider *
playlist_open_in_music_dir(const char *uri, GMutex *mutex, GCond *cond,
struct input_stream **is_r)
{
char *path_fs;
assert(uri_safe_local(uri));
path_fs = map_uri_fs(uri);
if (path_fs == NULL)
return NULL;
struct playlist_provider *playlist =
playlist_open_path(path_fs, mutex, cond, is_r);
g_free(path_fs);
return playlist;
}
struct playlist_provider *
playlist_mapper_open(const char *uri, GMutex *mutex, GCond *cond,
struct input_stream **is_r)
{
struct playlist_provider *playlist;
if (spl_valid_name(uri)) {
playlist = playlist_open_in_playlist_dir(uri, mutex, cond,
is_r);
if (playlist != NULL)
return playlist;
}
if (uri_safe_local(uri)) {
playlist = playlist_open_in_music_dir(uri, mutex, cond, is_r);
if (playlist != NULL)
return playlist;
}
return NULL;
}