forked from osmocom/wireshark
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/* buffer.h
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*
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* $Id$
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*
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* Wiretap Library
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* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; 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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*/
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#ifndef __W_BUFFER_H__
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#define __W_BUFFER_H__
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#include <glib.h>
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#define SOME_FUNCTIONS_ARE_DEFINES
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typedef struct Buffer {
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guint8 *data;
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gsize allocated;
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gsize start;
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gsize first_free;
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} Buffer;
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void buffer_init(Buffer* buffer, gsize space);
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void buffer_free(Buffer* buffer);
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void buffer_assure_space(Buffer* buffer, gsize space);
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void buffer_append(Buffer* buffer, guint8 *from, gsize bytes);
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void buffer_remove_start(Buffer* buffer, gsize bytes);
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#ifdef SOME_FUNCTIONS_ARE_DEFINES
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# define buffer_clean(buffer) buffer_remove_start((buffer), buffer_length(buffer))
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# define buffer_increase_length(buffer,bytes) (buffer)->first_free += (bytes)
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# define buffer_length(buffer) ((buffer)->first_free - (buffer)->start)
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# define buffer_start_ptr(buffer) ((buffer)->data + (buffer)->start)
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# define buffer_end_ptr(buffer) ((buffer)->data + (buffer)->first_free)
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# define buffer_append_buffer(buffer,src_buffer) buffer_append((buffer), buffer_start_ptr(src_buffer), buffer_length(src_buffer))
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#else
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void buffer_clean(Buffer* buffer);
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void buffer_increase_length(Buffer* buffer, unsigned int bytes);
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unsigned int buffer_length(Buffer* buffer);
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guint8* buffer_start_ptr(Buffer* buffer);
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guint8* buffer_end_ptr(Buffer* buffer);
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void buffer_append_buffer(Buffer* buffer, Buffer* src_buffer);
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#endif
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#endif
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