ocs_textbuf.h

/*
 *  BSD LICENSE
 *
 *  Copyright (c) 2011-2018 Broadcom.  All Rights Reserved.
 *  The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *    * Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *    * Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in
 *      the documentation and/or other materials provided with the
 *      distribution.
 *    * Neither the name of Intel Corporation nor the names of its
 *      contributors may be used to endorse or promote products derived
 *      from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#if !defined(__OCS_TEXTBUF_H__)
#define __OCS_TEXTBUF_H__

#include "ocs_list.h"

#define OCS_TEXTBUF_MAX_ALLOC_LEN	(256*1024)

typedef struct {
	ocs_list_link_t link;
	uint8_t user_allocated:1;
	uint8_t *buffer;
	uint32_t buffer_length;
	uint32_t buffer_written;
} ocs_textbuf_segment_t;

typedef struct {
	ocs_t *ocs;
	ocs_list_t segment_list;
	uint8_t extendable:1;
	uint32_t allocation_length;
	uint32_t total_allocation_length;
	uint32_t max_allocation_length;
} ocs_textbuf_t;

extern int32_t ocs_textbuf_alloc(ocs_t *ocs, ocs_textbuf_t *textbuf, uint32_t length);
extern uint32_t ocs_textbuf_initialized(ocs_textbuf_t *textbuf);
extern int32_t ocs_textbuf_init(ocs_t *ocs, ocs_textbuf_t *textbuf, void *buffer, uint32_t length);
extern void ocs_textbuf_free(ocs_t *ocs, ocs_textbuf_t *textbuf);
extern void ocs_textbuf_putc(ocs_textbuf_t *textbuf, uint8_t c);
extern void ocs_textbuf_puts(ocs_textbuf_t *textbuf, char *s);
__attribute__((format(printf,2,3)))
extern void ocs_textbuf_printf(ocs_textbuf_t *textbuf, const char *fmt, ...);
__attribute__((format(printf,2,0)))
extern void ocs_textbuf_vprintf(ocs_textbuf_t *textbuf, const char *fmt, va_list ap);
extern void ocs_textbuf_buffer(ocs_textbuf_t *textbuf, uint8_t *buffer, uint32_t buffer_length);
extern void ocs_textbuf_copy(ocs_textbuf_t *textbuf, uint8_t *buffer, uint32_t buffer_length);
extern int32_t ocs_textbuf_remaining(ocs_textbuf_t *textbuf);
extern void ocs_textbuf_reset(ocs_textbuf_t *textbuf);
extern uint8_t *ocs_textbuf_get_buffer(ocs_textbuf_t *textbuf);
extern int32_t ocs_textbuf_get_length(ocs_textbuf_t *textbuf);
extern int32_t ocs_textbuf_get_written(ocs_textbuf_t *textbuf);
extern uint8_t *ocs_textbuf_ext_get_buffer(ocs_textbuf_t *textbuf, uint32_t idx);
extern int32_t ocs_textbuf_ext_get_length(ocs_textbuf_t *textbuf, uint32_t idx);
extern int32_t ocs_textbuf_ext_get_written(ocs_textbuf_t *textbuf, uint32_t idx);

#endif // __OCS_TEXTBUF_H__