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/*
* Copyright (C) 2014 René Kijewski <rene.kijewski@fu-berlin.de>
*
* This 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.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @ingroup sys_pipe
* @{
* @file
* @brief Implementation for dynamically allocated pipes.
* @author René Kijewski <rene.kijewski@fu-berlin.de>
* @}
*/
#if defined(MCU_ATMEGA2560) || defined(MCU_ATMEGA1281) || defined(MCU_ATMEGA328P)
#include <stdlib.h>
#else
#include <malloc.h>
#endif
#include "pipe.h"
struct mallocd_pipe
{
pipe_t pipe;
ringbuffer_t rb;
char buffer[1];
};
pipe_t *pipe_malloc(unsigned size)
{
struct mallocd_pipe *m_pipe = malloc(sizeof (*m_pipe) + size);
if (m_pipe) {
ringbuffer_init(&m_pipe->rb, m_pipe->buffer, size);
pipe_init(&m_pipe->pipe, &m_pipe->rb, free);
}
return &m_pipe->pipe;
}
void pipe_free(pipe_t *rp)
{
if (rp && rp->free) {
rp->free(rp);
}
}