1 /*
2 * Copyright (c) 2021 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 #include "../include/ievent.h"
17 #include "db_errno.h"
18 #include "event_impl.h"
19
20 namespace DistributedDB {
CreateEvent(EventTime timeout,int & errCode)21 IEvent *IEvent::CreateEvent(EventTime timeout, int &errCode)
22 {
23 if (timeout < 0) {
24 errCode = -E_INVALID_ARGS;
25 return nullptr;
26 }
27
28 IEvent *event = new (std::nothrow) EventImpl(timeout);
29 if (event == nullptr) {
30 errCode = -E_OUT_OF_MEMORY;
31 return nullptr;
32 }
33 errCode = E_OK;
34 return event;
35 }
36
CreateEvent(EventFd fd,EventsMask events,EventTime timeout,int & errCode)37 IEvent *IEvent::CreateEvent(EventFd fd, EventsMask events,
38 EventTime timeout, int &errCode)
39 {
40 errCode = -E_INVALID_ARGS;
41 if (!events) {
42 return nullptr;
43 }
44 if ((events & ET_TIMEOUT) && (timeout < 0)) {
45 return nullptr;
46 }
47 if (!(events & ET_TIMEOUT) && !fd.IsValid()) {
48 return nullptr;
49 }
50
51 IEvent *event = new (std::nothrow) EventImpl(fd, events, timeout);
52 if (event == nullptr) {
53 errCode = -E_OUT_OF_MEMORY;
54 return nullptr;
55 }
56 errCode = E_OK;
57 return event;
58 }
59 } // namespace DistributedDB
60