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76 lines
2.2 KiB
76 lines
2.2 KiB
/*
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The mediastreamer library aims at providing modular media processing and I/O
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for linphone, but also for any telephony application.
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Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef MSBUFFER_H
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#define MSBUFFER_H
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#include <config.h>
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#ifdef HAVE_GLIB
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#include <glib.h>
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#else
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#include <uglib.h>
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#endif
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#define MS_BUFFER_LARGE 4092
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typedef struct _MSBuffer
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{
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gchar *buffer;
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guint32 size;
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guint16 ref_count;
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guint16 flags;
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#define MS_BUFFER_CONTIGUOUS (1)
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}MSBuffer;
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MSBuffer * ms_buffer_new(guint32 size);
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void ms_buffer_destroy(MSBuffer *buf);
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struct _MSMessage
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{
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MSBuffer *buffer; /* points to a MSBuffer */
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void *data; /*points to buffer->buffer */
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guint32 size; /* the size of the buffer to read in data. It may not be the
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physical size (I mean buffer->buffer->size */
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struct _MSMessage *next;
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struct _MSMessage *prev; /* MSMessage are queued into MSQueues */
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};
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typedef struct _MSMessage MSMessage;
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MSBuffer *ms_buffer_alloc(gint flags);
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MSMessage *ms_message_new(gint size);
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#define ms_message_set_buf(m,b) do { (b)->ref_count++; (m)->buffer=(b); (m)->data=(b)->buffer; (m)->size=(b)->size; }while(0)
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#define ms_message_unset_buf(m) do { (m)->buffer->ref_count--; (m)->buffer=NULL; (m)->size=0; (m)->data=NULL; } while(0)
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#define ms_message_size(m) (m)->size
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void ms_message_destroy(MSMessage *m);
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MSMessage * ms_message_dup(MSMessage *m);
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/* allocate a single message without buffer */
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MSMessage *ms_message_alloc();
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#endif
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