1 files changed, 127 insertions, 0 deletions
diff --git a/contrib/libcdio/_cdio_stream.h b/contrib/libcdio/_cdio_stream.h
new file mode 100644
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+++ b/contrib/libcdio/_cdio_stream.h
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+/*
+    $Id: _cdio_stream.h,v 1.2 2004/04/11 12:20:31 miguelfreitas Exp $
+
+    Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
+    Copyright (C) 2003, 2004 Rocky Bernstein <rocky@panix.com>
+
+    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+
+#ifndef __CDIO_STREAM_H__
+#define __CDIO_STREAM_H__
+
+#include <cdio/types.h>
+#include "cdio_private.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+  /* typedef'ed IO functions prototypes */
+  
+  typedef int(*cdio_data_open_t)(void *user_data);
+  
+  typedef long(*cdio_data_read_t)(void *user_data, void *buf, long count);
+  
+  typedef long(*cdio_data_seek_t)(void *user_data, long offset, int whence);
+  
+  typedef long(*cdio_data_stat_t)(void *user_data);
+  
+  typedef int(*cdio_data_close_t)(void *user_data);
+  
+  typedef void(*cdio_data_free_t)(void *user_data);
+  
+  
+  /* abstract data source */
+  
+  typedef struct {
+    cdio_data_open_t open;
+    cdio_data_seek_t seek; 
+    cdio_data_stat_t stat; 
+    cdio_data_read_t read;
+    cdio_data_close_t close;
+    cdio_data_free_t free;
+  } cdio_stream_io_functions;
+  
+  CdioDataSource*
+  cdio_stream_new(void *user_data, const cdio_stream_io_functions *funcs);
+
+  /*!
+     Like fread(3) and in fact may be the same.
+
+     DESCRIPTION:
+     The function fread reads nmemb elements of data, each size bytes long,
+     from the stream pointed to by stream, storing them at the location
+     given by ptr.
+
+     RETURN VALUE:
+     return the number of items successfully read or written (i.e.,
+     not the number of characters).  If an error occurs, or the
+     end-of-file is reached, the return value is a short item count
+     (or zero).
+
+     We do not distinguish between end-of-file and error, and callers
+     must use feof(3) and ferror(3) to determine which occurred.
+  */
+  long
+  cdio_stream_read(CdioDataSource* obj, void *ptr, long size, long nmemb);
+  
+  /*! 
+    Like fseek(3) and in fact may be the same.
+
+    This  function sets the file position indicator for the stream
+    pointed to by stream.  The new position, measured in bytes, is obtained
+    by  adding offset bytes to the position specified by whence.  If whence
+    is set to SEEK_SET, SEEK_CUR, or SEEK_END, the offset  is  relative  to
+    the  start of the file, the current position indicator, or end-of-file,
+    respectively.  A successful call to the fseek function clears the end-
+    of-file indicator for the stream and undoes any effects of the
+    ungetc(3) function on the same stream.
+    
+    RETURN VALUE
+    Upon successful completion, return 0,
+    Otherwise, -1 is returned and the global variable errno is set to indi-
+    cate the error.
+   */
+  long int cdio_stream_seek(CdioDataSource* obj, long offset, int whence);
+  
+  /*!
+    Return whatever size of stream reports, I guess unit size is bytes. 
+    On error return -1;
+  */
+  long int cdio_stream_stat(CdioDataSource* obj);
+  
+  /*!
+    Deallocate resources assocaited with obj. After this obj is unusable.
+  */
+  void cdio_stream_destroy(CdioDataSource* obj);
+  
+  void cdio_stream_close(CdioDataSource* obj);
+  
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __CDIO_STREAM_H__ */
+
+
+/* 
+ * Local variables:
+ *  c-file-style: "gnu"
+ *  tab-width: 8
+ *  indent-tabs-mode: nil
+ * End:
+ */