69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/** @file
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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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* SPDX-License-Identifier: GPL-2.0-or-later
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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 <inttypes.h>
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#include <stddef.h>
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#include "ws_symbol_export.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define SOME_FUNCTIONS_ARE_DEFINES
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typedef struct Buffer {
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uint8_t *data;
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size_t allocated;
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size_t start;
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size_t first_free;
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} Buffer;
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WS_DLL_PUBLIC
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void ws_buffer_init(Buffer* buffer, size_t space);
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WS_DLL_PUBLIC
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void ws_buffer_free(Buffer* buffer);
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WS_DLL_PUBLIC
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void ws_buffer_assure_space(Buffer* buffer, size_t space);
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WS_DLL_PUBLIC
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void ws_buffer_append(Buffer* buffer, uint8_t *from, size_t bytes);
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WS_DLL_PUBLIC
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void ws_buffer_remove_start(Buffer* buffer, size_t bytes);
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WS_DLL_PUBLIC
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void ws_buffer_cleanup(void);
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#ifdef SOME_FUNCTIONS_ARE_DEFINES
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# define ws_buffer_clean(buffer) ws_buffer_remove_start((buffer), ws_buffer_length(buffer))
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# define ws_buffer_increase_length(buffer,bytes) (buffer)->first_free += (bytes)
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# define ws_buffer_length(buffer) ((buffer)->first_free - (buffer)->start)
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# define ws_buffer_start_ptr(buffer) ((buffer)->data + (buffer)->start)
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# define ws_buffer_end_ptr(buffer) ((buffer)->data + (buffer)->first_free)
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# define ws_buffer_append_buffer(buffer,src_buffer) ws_buffer_append((buffer), ws_buffer_start_ptr(src_buffer), ws_buffer_length(src_buffer))
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#else
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WS_DLL_PUBLIC
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void ws_buffer_clean(Buffer* buffer);
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WS_DLL_PUBLIC
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void ws_buffer_increase_length(Buffer* buffer, size_t bytes);
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WS_DLL_PUBLIC
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size_t ws_buffer_length(Buffer* buffer);
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WS_DLL_PUBLIC
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uint8_t* ws_buffer_start_ptr(Buffer* buffer);
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WS_DLL_PUBLIC
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uint8_t* ws_buffer_end_ptr(Buffer* buffer);
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WS_DLL_PUBLIC
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void ws_buffer_append_buffer(Buffer* buffer, Buffer* src_buffer);
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#endif
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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