incubator-nuttx/include/malloc.h

95 lines
3.2 KiB
C

/****************************************************************************
* include/malloc.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __INCLUDE_MALLOC_H
#define __INCLUDE_MALLOC_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdlib.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Special PID to query the info about alloc, free and mempool */
#define PID_MM_FREE ((pid_t)-4)
#define PID_MM_ALLOC ((pid_t)-3)
#define PID_MM_LEAK ((pid_t)-2)
#define PID_MM_MEMPOOL ((pid_t)-1)
/* For Linux and MacOS compatibility */
#define malloc_usable_size malloc_size
/****************************************************************************
* Public Type Definitions
****************************************************************************/
struct mallinfo
{
int arena; /* This is the total size of memory allocated
* for use by malloc in bytes. */
int ordblks; /* This is the number of free (not in use) chunks */
int aordblks; /* This is the number of allocated (in use) chunks */
int mxordblk; /* Size of the largest free (not in use) chunk */
int uordblks; /* This is the total size of memory occupied by
* chunks handed out by malloc. */
int fordblks; /* This is the total size of memory occupied
* by free (not in use) chunks. */
};
struct malltask
{
pid_t pid; /* Process id */
#if CONFIG_MM_BACKTRACE >= 0
unsigned long seqmin; /* The minimum sequence */
unsigned long seqmax; /* The maximum sequence */
#endif
};
struct mallinfo_task
{
int aordblks; /* This is the number of allocated (in use) chunks for task */
int uordblks; /* This is the total size of memory occupied for task */
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#if defined(__cplusplus)
extern "C"
{
#endif
struct mallinfo mallinfo(void);
size_t malloc_size(FAR void *ptr);
struct mallinfo_task mallinfo_task(FAR const struct malltask *task);
#if defined(__cplusplus)
}
#endif
#endif /* __INCLUDE_MALLOC_H */