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 <unistd.h>
17
18#include "dgram_socket_client.h"
19
20namespace OHOS {
21namespace HiviewDFX {
22int DgramSocketClient::CheckSocket()
23{
24    if (fdHandler >= 0) {
25        return fdHandler;
26    }
27
28    int fd = GenerateFD();
29    if (fd < 0) {
30        return fd;
31    }
32
33    int ret;
34    int defaultValue = -1;
35    fdHandler.compare_exchange_strong(defaultValue, fd);
36    if (defaultValue != -1) {
37        ret = defaultValue;
38        close(fd);
39    } else {
40        ret = fd;
41        SetHandler(fd);
42        Connect();
43    }
44
45    return ret;
46}
47} // namespace HiviewDFX
48} // namespace OHOS
49