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05067881 BP |
1 | /* |
2 | * Copyright (c) 2013 Nicira, Inc. | |
3 | * | |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #ifndef GUARDED_LIST_H | |
18 | #define GUARDED_LIST_H 1 | |
19 | ||
20 | #include <stddef.h> | |
21 | #include "compiler.h" | |
22 | #include "list.h" | |
23 | #include "ovs-thread.h" | |
24 | ||
25 | struct guarded_list { | |
26 | struct ovs_mutex mutex; | |
ca6ba700 | 27 | struct ovs_list list; |
05067881 BP |
28 | size_t n; |
29 | }; | |
30 | ||
55951e15 | 31 | #define GUARDED_OVS_LIST_INITIALIZER(LIST) { \ |
6d308b28 | 32 | .mutex = OVS_MUTEX_INITIALIZER, \ |
55951e15 | 33 | .list = OVS_LIST_INITIALIZER(&((LIST)->list)), \ |
6d308b28 AW |
34 | .n = 0 } |
35 | ||
05067881 BP |
36 | void guarded_list_init(struct guarded_list *); |
37 | void guarded_list_destroy(struct guarded_list *); | |
38 | ||
39 | bool guarded_list_is_empty(const struct guarded_list *); | |
40 | ||
ca6ba700 | 41 | size_t guarded_list_push_back(struct guarded_list *, struct ovs_list *, |
05067881 | 42 | size_t max); |
ca6ba700 TG |
43 | struct ovs_list *guarded_list_pop_front(struct guarded_list *); |
44 | size_t guarded_list_pop_all(struct guarded_list *, struct ovs_list *); | |
05067881 BP |
45 | |
46 | #endif /* guarded-list.h */ |