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/*
The mediastreamer library aims at providing modular media processing and I/O
for linphone, but also for any telephony application.
Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org
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, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef MSBUFFER_H
#define MSBUFFER_H
#include <config.h>
#ifdef HAVE_GLIB
#include <glib.h>
#else
#include <uglib.h>
#endif
#define MS_BUFFER_LARGE 4092
typedef struct _MSBuffer
{
gchar *buffer;
guint32 size;
guint16 ref_count;
guint16 flags;
#define MS_BUFFER_CONTIGUOUS (1)
}MSBuffer;
MSBuffer * ms_buffer_new(guint32 size);
void ms_buffer_destroy(MSBuffer *buf);
struct _MSMessage
{
MSBuffer *buffer; /* points to a MSBuffer */
void *data; /*points to buffer->buffer */
guint32 size; /* the size of the buffer to read in data. It may not be the
physical size (I mean buffer->buffer->size */
struct _MSMessage *next;
struct _MSMessage *prev; /* MSMessage are queued into MSQueues */
};
typedef struct _MSMessage MSMessage;
MSBuffer *ms_buffer_alloc(gint flags);
MSMessage *ms_message_new(gint size);
#define ms_message_set_buf(m,b) do { (b)->ref_count++; (m)->buffer=(b); (m)->data=(b)->buffer; (m)->size=(b)->size; }while(0)
#define ms_message_unset_buf(m) do { (m)->buffer->ref_count--; (m)->buffer=NULL; (m)->size=0; (m)->data=NULL; } while(0)
#define ms_message_size(m) (m)->size
void ms_message_destroy(MSMessage *m);
MSMessage * ms_message_dup(MSMessage *m);
/* allocate a single message without buffer */
MSMessage *ms_message_alloc();
#endif
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