1 /* 2 * Copyright (c) 2025 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 SOFTBUS_CONN_FAIR_PRIORITY_QUEUE_H 17 #define SOFTBUS_CONN_FAIR_PRIORITY_QUEUE_H 18 19 #include <stdint.h> 20 21 #include "softbus_error_code.h" 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 typedef enum { 28 CONN_PRIORITY_HIGH = 0, 29 CONN_PRIORITY_MIDDLE, 30 CONN_PRIORITY_LOW, 31 CONN_PRIORITY_BUTT, 32 } ConnPriority; 33 34 // 'CONN_QUEUE_ITEM_BASE' MUST be declared in first place of concrete queue message 35 #define CONN_QUEUE_ITEM_BASE \ 36 int32_t id; \ 37 ConnPriority priority 38 39 struct ConnQueueItem { 40 CONN_QUEUE_ITEM_BASE; 41 }; 42 void ConnQueueItemConstruct(struct ConnQueueItem *item, int32_t id, ConnPriority priority); 43 void ConnQueueItemDestruct(struct ConnQueueItem *item); 44 45 struct ConnFairPriorityQueue; 46 typedef struct ConnFairPriorityQueue ConnFairPriorityQueue; 47 48 ConnFairPriorityQueue *ConnCreateQueue(uint32_t size); 49 void ConnDestroyQueue(ConnFairPriorityQueue *queue); 50 int32_t ConnEnqueue(ConnFairPriorityQueue *queue, struct ConnQueueItem *msg, int32_t timeoutMs); 51 int32_t ConnDequeue(ConnFairPriorityQueue *queue, struct ConnQueueItem **out, int32_t timeoutMs); 52 53 #ifdef __cplusplus 54 } 55 #endif 56 57 #endif // SOFTBUS_CONN_FAIR_PRIORITY_QUEUE_H 58