1 /* 2 * Copyright (c) 2009-2022 Huawei Technologies Co., Ltd. All rights reserved. 3 * 4 * UniProton is licensed under Mulan PSL v2. 5 * You can use this software according to the terms and conditions of the Mulan PSL v2. 6 * You may obtain a copy of Mulan PSL v2 at: 7 * http://license.coscl.org.cn/MulanPSL2 8 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, 9 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, 10 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. 11 * See the Mulan PSL v2 for more details. 12 * Create: 2009-12-22 13 * Description: 队列函数实现 14 */ 15 #include "prt_mem.h" 16 #include "prt_queue_external.h" 17 18 /* 19 * 描述：删除队列，只提给供实验室使用 20 */ PRT_QueueDelete(U32 queueId)21OS_SEC_L4_TEXT U32 PRT_QueueDelete(U32 queueId) 22 { 23 uintptr_t intSave; 24 U32 ret; 25 U32 innerId = OS_QUEUE_INNER_ID(queueId); 26 struct TagQueCb *queueCb = NULL; 27 28 if (innerId >= g_maxQueue) { 29 return OS_ERRNO_QUEUE_INVALID; 30 } 31 32 /* 获取指定队列控制块 */ 33 queueCb = (struct TagQueCb *)GET_QUEUE_HANDLE(innerId); 34 intSave = OsIntLock(); 35 if (queueCb->queueState == OS_QUEUE_UNUSED) { 36 ret = OS_ERRNO_QUEUE_NOT_CREATE; 37 goto QUEUE_END; 38 } 39 40 if (!ListEmpty(&queueCb->writeList) || !ListEmpty(&queueCb->readList)) { 41 ret = OS_ERRNO_QUEUE_IN_TSKUSE; 42 goto QUEUE_END; 43 } 44 45 if ((queueCb->writableCnt + queueCb->readableCnt) != queueCb->nodeNum) { 46 ret = OS_ERRNO_QUEUE_BUSY; 47 goto QUEUE_END; 48 } 49 50 ret = PRT_MemFree((U32)OS_MID_QUEUE, (void *)(queueCb->queue)); 51 if (ret != OS_OK) { 52 goto QUEUE_END; 53 } 54 55 queueCb->queueState = OS_QUEUE_UNUSED; 56 57 QUEUE_END: 58 OsIntRestore(intSave); 59 return ret; 60 } 61