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/****************************************************************************
* mm/mm_gran/mm_graninit.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name NuttX 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, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <assert.h>
#include <errno.h>
#include <nuttx/mm/gran.h>
#include <nuttx/kmalloc.h>
#include "mm_gran/mm_gran.h"
#ifdef CONFIG_GRAN
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/* State of the single GRAN allocator */
#ifdef CONFIG_GRAN_SINGLE
FAR struct gran_s *g_graninfo;
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: gran_release_common
*
* Description:
* Perform common GRAN initialization.
*
* Input Parameters:
* priv - Reference to the granule heap structure to be released.
*
* Returned Value:
* None
*
****************************************************************************/
static inline void gran_release_common(FAR struct gran_s *priv)
{
DEBUGASSERT(priv);
#ifndef CONFIG_GRAN_INTR
sem_destroy(&priv->exclsem);
#endif
kmm_free(priv);
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: gran_release
*
* Description:
* Uninitialize a gram memory allocator and release resources held by the
* allocator.
*
* Input Parameters:
* handle - The handle previously returned by gran_initialize
*
* Returned Value:
* None.
*
****************************************************************************/
#ifdef CONFIG_GRAN_SINGLE
void gran_release(void)
{
gran_release_common(g_graninfo);
g_graninfo = NULL;
}
#else
void gran_release(GRAN_HANDLE handle)
{
gran_release_common(handle);
}
#endif
#endif /* CONFIG_GRAN */
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