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/*
DeaDBeeF - ultimate music player for GNU/Linux systems with X11
Copyright (C) 2009-2011 Alexey Yakovenko <waker@users.sourceforge.net>
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 "deadbeef.h"
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#ifndef __linux__
#define off64_t off_t
#define lseek64 lseek
#define O_LARGEFILE 0
#endif
//#define USE_STDIO
static DB_functions_t *deadbeef;
typedef struct {
DB_vfs_t *vfs;
#ifdef USE_STDIO
FILE *stream;
#else
int stream;
int64_t offs;
#endif
} STDIO_FILE;
static DB_vfs_t plugin;
static DB_FILE *
stdio_open (const char *fname) {
if (!memcmp (fname, "file://", 7)) {
fname += 7;
}
#ifdef USE_STDIO
FILE *file = fopen (fname, "rb");
if (!file) {
return NULL;
}
#else
int file = open (fname, O_LARGEFILE);
if (file == -1) {
return NULL;
}
#endif
STDIO_FILE *fp = malloc (sizeof (STDIO_FILE));
fp->vfs = &plugin;
fp->stream = file;
#ifndef USE_STDIO
fp->offs = 0;
#endif
return (DB_FILE*)fp;
}
static void
stdio_close (DB_FILE *stream) {
assert (stream);
#ifdef USE_STDIO
fclose (((STDIO_FILE *)stream)->stream);
#else
close (((STDIO_FILE *)stream)->stream);
#endif
free (stream);
}
static size_t
stdio_read (void *ptr, size_t size, size_t nmemb, DB_FILE *stream) {
assert (stream);
assert (ptr);
#ifdef USE_STDIO
return fread (ptr, size, nmemb, ((STDIO_FILE*)stream)->stream);
#else
int res = read (((STDIO_FILE*)stream)->stream, ptr, size*nmemb);
if (res == -1) {
return 0;
}
((STDIO_FILE*)stream)->offs += res;
return res / size;
#endif
}
static int
stdio_seek (DB_FILE *stream, int64_t offset, int whence) {
assert (stream);
#ifdef USE_STDIO
return fseek (((STDIO_FILE *)stream)->stream, offset, whence);
#else
off64_t res = lseek64 (((STDIO_FILE *)stream)->stream, offset, whence);
if (res == -1) {
return -1;
}
// printf ("lseek res: %lld (%lld, %d, prev=%lld)\n", res, offset, whence, ((STDIO_FILE*)stream)->offs);
((STDIO_FILE*)stream)->offs = res;
#endif
return 0;
}
static int64_t
stdio_tell (DB_FILE *stream) {
assert (stream);
#ifdef USE_STDIO
return ftell (((STDIO_FILE*)stream)->stream);
#else
return ((STDIO_FILE*)stream)->offs;
#endif
}
static void
stdio_rewind (DB_FILE *stream) {
assert (stream);
#ifdef USE_STDIO
rewind (((STDIO_FILE*)stream)->stream);
#else
stdio_seek (stream, 0, SEEK_SET);
#endif
}
static int64_t
stdio_getlength (DB_FILE *stream) {
assert (stream);
STDIO_FILE *f = (STDIO_FILE *)stream;
#ifdef USE_STDIO
size_t offs = ftell (f->stream);
fseek (f->stream, 0, SEEK_END);
size_t l = ftell (f->stream);
fseek (f->stream, offs, SEEK_SET);
return l;
#else
int64_t size = lseek64 (f->stream, 0, SEEK_END);
lseek64 (f->stream, f->offs, SEEK_SET);
return size;
#endif
}
const char *
stdio_get_content_type (DB_FILE *stream) {
return NULL;
}
int
stdio_is_streaming (void) {
return 0;
}
// standard stdio vfs
static DB_vfs_t plugin = {
DB_PLUGIN_SET_API_VERSION
.plugin.version_major = 1,
.plugin.version_minor = 0,
.plugin.type = DB_PLUGIN_VFS,
.plugin.name = "stdio vfs",
.plugin.descr = "Standard IO plugin\nUsed for reading normal local files\nIt is statically linked, so you can't delete it.",
.plugin.copyright =
"Copyright (C) 2009-2011 Alexey Yakovenko <waker@users.sourceforge.net>\n"
"\n"
"This program is free software; you can redistribute it and/or\n"
"modify it under the terms of the GNU General Public License\n"
"as published by the Free Software Foundation; either version 2\n"
"of the License, or (at your option) any later version.\n"
"\n"
"This program is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n"
"\n"
"You should have received a copy of the GNU General Public License\n"
"along with this program; if not, write to the Free Software\n"
"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\n"
,
.plugin.website = "http://deadbeef.sf.net",
.open = stdio_open,
.close = stdio_close,
.read = stdio_read,
.seek = stdio_seek,
.tell = stdio_tell,
.rewind = stdio_rewind,
.getlength = stdio_getlength,
.get_content_type = stdio_get_content_type,
.is_streaming = stdio_is_streaming
};
DB_plugin_t *
stdio_load (DB_functions_t *api) {
deadbeef = api;
return DB_PLUGIN (&plugin);
}
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