/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*  GMime
 *  Copyright (C) 2000-2022 Jeffrey Stedfast
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2.1
 *  of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free
 *  Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
 *  02110-1301, USA.
 */


#ifndef __GMIME_STREAM_BUFFER_H__
#define __GMIME_STREAM_BUFFER_H__

#include <gmime/gmime-stream.h>

G_BEGIN_DECLS

#define GMIME_TYPE_STREAM_BUFFER            (g_mime_stream_buffer_get_type ())
#define GMIME_STREAM_BUFFER(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GMIME_TYPE_STREAM_BUFFER, GMimeStreamBuffer))
#define GMIME_STREAM_BUFFER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GMIME_TYPE_STREAM_BUFFER, GMimeStreamBufferClass))
#define GMIME_IS_STREAM_BUFFER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GMIME_TYPE_STREAM_BUFFER))
#define GMIME_IS_STREAM_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GMIME_TYPE_STREAM_BUFFER))
#define GMIME_STREAM_BUFFER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GMIME_TYPE_STREAM_BUFFER, GMimeStreamBufferClass))

typedef struct _GMimeStreamBuffer GMimeStreamBuffer;
typedef struct _GMimeStreamBufferClass GMimeStreamBufferClass;


/**
 * GMimeStreamBufferMode:
 * @GMIME_STREAM_BUFFER_BLOCK_READ: Read in 4k blocks.
 * @GMIME_STREAM_BUFFER_BLOCK_WRITE: Write in 4k blocks.
 *
 * The buffering mode for a #GMimeStreamBuffer stream.
 **/
typedef enum {
	GMIME_STREAM_BUFFER_BLOCK_READ,
	GMIME_STREAM_BUFFER_BLOCK_WRITE
} GMimeStreamBufferMode;


/**
 * GMimeStreamBuffer:
 * @parent_object: parent #GMimeStream
 * @mode: buffering mode
 * @source: source stream
 * @buffer: internal buffer
 * @bufptr: current position in the buffer
 * @bufend: end of the buffer
 * @buflen: buffer length
 *
 * A buffered stream wrapper around any #GMimeStream object.
 **/
struct _GMimeStreamBuffer {
	GMimeStream parent_object;
	
	GMimeStreamBufferMode mode;
	GMimeStream *source;
	
	char *buffer;
	char *bufptr;
	char *bufend;
	size_t buflen;
};

struct _GMimeStreamBufferClass {
	GMimeStreamClass parent_class;
	
};


GType g_mime_stream_buffer_get_type (void);

GMimeStream *g_mime_stream_buffer_new (GMimeStream *source, GMimeStreamBufferMode mode);

ssize_t g_mime_stream_buffer_gets (GMimeStream *stream, char *buf, size_t max);

void    g_mime_stream_buffer_readln (GMimeStream *stream, GByteArray *buffer);

G_END_DECLS

#endif /* __GMIME_STREAM_BUFFER_H__ */
