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# src/input_stream.h

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    00001 /*
    00002  * Copyright (C) 2003-2010 The Music Player Daemon Project
    00003  * http://www.musicpd.org
    00004  *
    00005  * This program is free software; you can redistribute it and/or modify
    00006  * it under the terms of the GNU General Public License as published by
    00007  * the Free Software Foundation; either version 2 of the License, or
    00008  * (at your option) any later version.
    00009  *
    00010  * This program is distributed in the hope that it will be useful,
    00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00013  * GNU General Public License for more details.
    00014  *
    00015  * You should have received a copy of the GNU General Public License along
    00016  * with this program; if not, write to the Free Software Foundation, Inc.,
    00017  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
    00018  */
    00019
    00020 #ifndef MPD_INPUT_STREAM_H
    00021 #define MPD_INPUT_STREAM_H
    00022
    00023 #include "check.h"
    00024
    00025 #include <glib.h>
    00026
    00027 #include <stddef.h>
    00028 #include <stdbool.h>
    00029 #include <sys/types.h>
    00030
    00031 #if !GLIB_CHECK_VERSION(2,14,0)
    00032 typedef gint64 goffset;
    00033 #endif
    00034
    00035 struct input_stream {
    00039         const struct input_plugin *plugin;
    00040
    00045         char *uri;
    00046
    00051         bool ready;
    00052
    00056         bool seekable;
    00057
    00061         goffset size;
    00062
    00066         goffset offset;
    00067
    00071         char *mime;
    00072 };
    00073
    00074 static inline void
    00075 input_stream_init(struct input_stream *is, const struct input_plugin *plugin,
    00076                   const char *uri)
    00077 {
    00078         is->plugin = plugin;
    00079         is->uri = g_strdup(uri);
    00080         is->ready = false;
    00081         is->seekable = false;
    00082         is->size = -1;
    00083         is->offset = 0;
    00084         is->mime = NULL;
    00085 }
    00086
    00087 static inline void
    00088 input_stream_deinit(struct input_stream *is)
    00089 {
    00090         g_free(is->uri);
    00091         g_free(is->mime);
    00092 }
    00093
    00100 struct input_stream *
    00101 input_stream_open(const char *uri, GError **error_r);
    00102
    00106 void
    00107 input_stream_close(struct input_stream *is);
    00108
    00117 bool
    00118 input_stream_seek(struct input_stream *is, goffset offset, int whence,
    00119                   GError **error_r);
    00120
    00124 bool input_stream_eof(struct input_stream *is);
    00125
    00132 struct tag *
    00133 input_stream_tag(struct input_stream *is);
    00134
    00143 int input_stream_buffer(struct input_stream *is, GError **error_r);
    00144
    00154 size_t
    00155 input_stream_read(struct input_stream *is, void *ptr, size_t size,
    00156                   GError **error_r);
    00157
    00158 #endif