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libjit/jit/jit-varint.c  view on Meta::CPAN

/*
 * jit-varint.c - Variable length integer encoding.
 *
 * Copyright (C) 2011  Aleksey Demakov
 *
 * The libjit 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.
 *
 * The libjit 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 the libjit library.  If not, see
 * <http://www.gnu.org/licenses/>.
 */

#include <jit/jit.h>
#include "jit-varint.h"

/*
 * Flush the current encode buffer.
 */
static int
flush_encoder(jit_varint_encoder_t *encoder)
{
	jit_varint_data_t data;

	/* Allocate a new jit_varint_data structure to hold the data */
	data = jit_malloc(sizeof(struct jit_varint_data) + encoder->len);
	if(!data)
	{
		return 0;
	}

	/* Copy the temporary debug data into the new structure */
	jit_memcpy(data->data, encoder->buf, encoder->len);

	/* Link the structure into the debug list */
	data->next = 0;
	if(encoder->last)
	{
		encoder->last->next = data;
	}
	else
	{
		encoder->data = data;
	}
	encoder->last = data;

	/* Reset the temporary debug buffer */
	encoder->len = 0;
	return 1;
}

void
_jit_varint_init_encoder(jit_varint_encoder_t *encoder)
{
	encoder->len = 0;