kmalloc.h

這是一個實時嵌入式作業系統 實作了MCS51 ARM等MCU

/****************************************************************************
 * include/nuttx/kmalloc.h
 *
 *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <[e-mail]>
 *
 * 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.
 *
 ****************************************************************************/

#ifndef __KMALLOC_H
#define __KMALLOC_H

/****************************************************************************
 * Included Functions
 ****************************************************************************/

#include <nuttx/config.h>
#include <sys/types.h>

/****************************************************************************
 * Public Types
 ****************************************************************************/

/****************************************************************************
 * Public Function Prototypes
 ****************************************************************************/

#undef KMALLOC_EXTERN
#if defined(__cplusplus)
# define KMALLOC_EXTERN extern "C"
extern "C" {
#else
# define KMALLOC_EXTERN extern
#endif

#ifndef CONFIG_ARCH_KMALLOC
# include <stdlib.h>
# define kmalloc(s) malloc(s)
#else
KMALLOC_EXTERN FAR void  *kmalloc(size_t);
#endif

#ifndef CONFIG_ARCH_KZMALLOC
# include <stdlib.h>
# define kzmalloc(s) zalloc(s)
#else
KMALLOC_EXTERN FAR void  *kzalloc(size_t);
#endif

#ifndef CONFIG_ARCH_KFREE
# include <stdlib.h>
# define kfree(p) free(p)
#else
KMALLOC_EXTERN void   kfree(FAR void*);
#endif

/* Functions defined in os_list.c *******************************************/

/* Handles memory freed from an interrupt handler */

KMALLOC_EXTERN void sched_free(FAR void *address);

#undef KMALLOC_EXTERN
#if defined(__cplusplus)
}
#endif

#endif /* __KMALLOC_H */