/*
*
* Copyright (c) 2018 Huawei Technologies Co.,Ltd.
* Licensed 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 _DMM_MEMORY_H_
#define _DMM_MEMORY_H_
#include <stdio.h>
#include <stdarg.h>
#include "dmm_share.h"
#include "dmm_segment.h"
#include "dmm_ring.h"
#include "nstack_securec.h"

#define DMM_MEMORY_MODULE "DMM_MEMORY_MODULE"

extern struct dmm_segment *main_seg;
extern struct dmm_segment *base_seg;

inline static void dmm_lock_map()
{
    dmm_seg_lock(base_seg);
}

inline static void dmm_unlock_map()
{
    dmm_seg_unlock(base_seg);
}

inline static int dmm_unmap(void *mem)
{
    return dmm_mem_unmap(base_seg, mem);
}

inline static void *dmm_locked_map(size_t size,
                                   const char name[DMM_MEM_NAME_SIZE])
{
    void *mem;
    dmm_lock_map();
    mem = dmm_mem_map(base_seg, size, name);
    dmm_unlock_map();
    return mem;
}

inline static void *dmm_map(size_t size, const char name[DMM_MEM_NAME_SIZE])
{
    return dmm_mem_map(base_seg, size, name);
}

inline static void *dmm_mapv(size_t size, const char *name_fmt, ...)
{
    int len;
    char name[DMM_MEM_NAME_SIZE];
    va_list ap;

    va_start(ap, name_fmt);
    len =
        vsnprintf_s(name, DMM_MEM_NAME_SIZE, DMM_MEM_NAME_SIZE - 1, name_fmt,
                    ap);
    va_end(ap);

    if (len >= DMM_MEM_NAME_SIZE)
        return NULL;

    return dmm_map(size, name);
}

inline static void *dmm_lookup(const char name[DMM_MEM_NAME_SIZE])
{
    return dmm_mem_lookup(base_seg, name);
}

inline static void *dmm_lookupv(const char *name_fmt, ...)
{
    int len;
    char name[DMM_MEM_NAME_SIZE];
    va_list ap;

    va_start(ap, name_fmt);
    len =
        vsnprintf_s(name, DMM_MEM_NAME_SIZE, DMM_MEM_NAME_SIZE - 1, name_fmt,
                    ap);
    va_end(ap);

    if (len >= DMM_MEM_NAME_SIZE)
        return NULL;

    return dmm_mem_lookup(base_seg, name);
}

int dmm_mem_main_init();
int dmm_mem_main_exit();
int dmm_mem_app_init();
int dmm_mem_app_exit();

struct dmm_ring *dmm_create_ring(int num, int flag,
                                 const char name[DMM_MEM_NAME_SIZE]);

struct dmm_ring *dmm_attach_ring(const char name[DMM_MEM_NAME_SIZE]);

struct dmm_ring *dmm_malloc_ring(int num, int flag);

struct dmm_ring *dmm_create_pool(size_t elt_size, int num, int flag,
                                 const char name[DMM_MEM_NAME_SIZE]);

struct dmm_ring *dmm_attach_pool(const char name[DMM_MEM_NAME_SIZE]);

/* allocate pool from heap */
struct dmm_ring *dmm_malloc_pool(size_t elt_size, int num, int flag);

int dmm_mem_module_init(void *param);

void dmm_share_destroy();

#endif /* _DMM_MEMORY_H_ */