1 /*
2 * Copyright (C) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #ifndef FILLP_DYMPOOL_H
17 #define FILLP_DYMPOOL_H
18
19 #include "hlist.h"
20 #include "queue.h"
21 #include "spunge_mem.h"
22
23 #ifdef __cplusplus
24 extern "C" {
25 #endif
26
27 typedef struct InnerdympMemoryT {
28 struct HlistNode hnode;
29 int itemCnt;
30 } DympMemory;
31
DympMemoryNodeEntry(struct HlistNode * node)32 static __inline DympMemory *DympMemoryNodeEntry(struct HlistNode *node)
33 {
34 return (DympMemory *)((char *)(node) - (uintptr_t)(&(((DympMemory *)0)->hnode)));
35 }
36
37 typedef struct DympItemTypeStruct {
38 FillpQueue *mp; /* Queue of memory, for free */
39 } DympItemType;
40
41 #define DYMP_ITEM_DATA(_item) ((void *)((char *)(_item) + sizeof(DympItemType)))
42 #define DYMP_GET_ITEM_FROM_DATA(_data) ((void *)((char *)(_data) - sizeof(DympItemType)))
43
44
45 typedef FILLP_INT (*DympoolCreateCb)(DympItemType *item);
46 typedef void (*DympoolDestroyCb)(DympItemType *item);
47 typedef struct DympoolItemOperaCb {
48 DympoolCreateCb createCb;
49 DympoolDestroyCb destroyCb;
50 } DympoolItemOperaCbSt;
51
52 typedef struct DympoolTypeStrunct {
53 FillpQueue *mp; /* Queue of memory alloc */
54 int itemSize; /* Size of every memory item size */
55 int maxSize; /* Max memory item size,and althrough it is the max size of queue */
56 int currentSize; /* Current size of memory alloced */
57 int initSize; /* Initial size when do create */
58 FILLP_BOOL autoExpand; /* If auto expand if no item can be alloced */
59 struct Hlist mlist; /* List of alloced memory */
60 DympoolItemOperaCbSt itemOperaCb; /* item creation and destroy callback structure */
61 } DympoolType;
62
63 DympoolType *DympCreatePool(int initSize, int maxSize, int itemSize, FILLP_BOOL autoExpand,
64 DympoolItemOperaCbSt *itemOperaCb);
65
66
67 void DympDestroyPool(DympoolType *pool);
68 void DympSetConsSafe(DympoolType *pool, FILLP_BOOL safe);
69 void DympSetProdSafe(DympoolType *pool, FILLP_BOOL safe);
70 int DympAskMoreMemory(DympoolType *pool, int stepSize, int throttleGrow);
71 int DympAlloc(DympoolType *pool, void **data, int throttleGrow);
72 void DympFree(void *data);
73 #define DYMP_GET_CUR_SIZE(_pool) (((DympoolType *)(_pool))->currentSize)
74
75
76 #ifdef __cplusplus
77 }
78 #endif
79
80
81 #endif /* FILLP_DYMPOOL_H */
82