1 /*
2 * Copyright (c) 2023 Shenzhen Kaihong Digital Industry Development 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 "udp_client.h"
17 #include <unistd.h>
18 #include "common/common_macro.h"
19 #include "common/media_log.h"
20 #include "network/socket/socket_utils.h"
21 #include "network/socket/udp_socket.h"
22 #include "utils/utils.h"
23 namespace OHOS {
24 namespace Sharing {
25
~UdpClient()26 UdpClient::~UdpClient()
27 {
28 SHARING_LOGD("trace.");
29 Disconnect();
30 }
31
UdpClient()32 UdpClient::UdpClient()
33 {
34 SHARING_LOGD("trace.");
35 }
36
Connect(const std::string & peerHost,uint16_t peerPort,const std::string & localIp,uint16_t localPort)37 bool UdpClient::Connect(const std::string &peerHost, uint16_t peerPort, const std::string &localIp, uint16_t localPort)
38 {
39 SHARING_LOGI("peerIp: %{public}s, peerPort: %{public}d, localPort: %{public}d, thread_id: %{public}llu.",
40 GetAnonymousIp(peerHost).c_str(), peerPort, localPort, GetThreadId());
41 std::unique_lock<std::shared_mutex> lk(mutex_);
42 int32_t retCode = 0;
43 socket_ = std::make_unique<UdpSocket>();
44 if (socket_) {
45 if (socket_->Connect(peerHost, peerPort, retCode, false, true, localIp, localPort)) {
46 SHARING_LOGI("connect success.");
47 auto eventRunner = OHOS::AppExecFwk::EventRunner::Create(true);
48 eventHandler_ = std::make_shared<UdpClientEventHandler>();
49 eventHandler_->SetClient(shared_from_this());
50 eventHandler_->SetEventRunner(eventRunner);
51 eventRunner->Run();
52
53 eventListener_ = std::make_shared<UdpClientEventListener>();
54 eventListener_->SetClient(shared_from_this());
55
56 bool ret = eventListener_->AddFdListener(socket_->GetLocalFd(), eventListener_, eventHandler_);
57
58 auto callback = callback_.lock();
59 if (callback) {
60 callback->OnClientConnect(true);
61 }
62
63 return ret;
64 }
65 }
66 auto callback = callback_.lock();
67 if (callback) {
68 callback->OnClientConnect(false);
69 }
70 SHARING_LOGE("connect failed!");
71 return false;
72 }
73
Disconnect()74 void UdpClient::Disconnect()
75 {
76 SHARING_LOGD("trace.");
77 std::unique_lock<std::shared_mutex> lk(mutex_);
78 if (socket_ != nullptr) {
79 eventListener_->RemoveFdListener(socket_->GetLocalFd());
80 SocketUtils::ShutDownSocket(socket_->GetLocalFd());
81 SocketUtils::CloseSocket(socket_->GetLocalFd());
82 socket_.reset();
83 }
84 }
85
Send(const DataBuffer::Ptr & buf,int32_t nSize)86 bool UdpClient::Send(const DataBuffer::Ptr &buf, int32_t nSize)
87 {
88 SHARING_LOGD("trace.");
89 RETURN_FALSE_IF_NULL(buf);
90 return Send(buf->Peek(), nSize);
91 }
92
Send(const char * buf,int32_t nSize)93 bool UdpClient::Send(const char *buf, int32_t nSize)
94 {
95 SHARING_LOGD("trace.");
96 std::unique_lock<std::shared_mutex> lk(mutex_);
97 if (socket_ != nullptr) {
98 int32_t fd = socket_->GetLocalFd();
99 SHARING_LOGD("send fd: %{public}d.", fd);
100 if (::write(fd, buf, nSize) != -1) {
101 return true;
102 } else {
103 if (socket_) {
104 char errmsg[256] = {0};
105 strerror_r(errno, errmsg, sizeof(errmsg));
106 MEDIA_LOGE("send [%{public}s:%{public}d]Failed, %{public}s.",
107 GetAnonymousIp(socket_->GetPeerIp()).c_str(), (int32_t)socket_->GetPeerPort(),
108 errmsg);
109 }
110
111 return false;
112 }
113 } else {
114 return false;
115 }
116 }
117
Send(const std::string & msg)118 bool UdpClient::Send(const std::string &msg)
119 {
120 SHARING_LOGD("trace.");
121 return Send(msg.c_str(), msg.size());
122 }
123
GetSocketInfo()124 SocketInfo::Ptr UdpClient::GetSocketInfo()
125 {
126 SHARING_LOGD("trace.");
127 return socket_;
128 }
129
OnClientReadable(int32_t fd)130 void UdpClient::OnClientReadable(int32_t fd)
131 {
132 MEDIA_LOGI("fd: %{public}d, thread_id: %{public}llu.", fd, GetThreadId());
133 ssize_t retCode = 0;
134 do {
135 DataBuffer::Ptr buf = std::make_shared<DataBuffer>(DEFAULT_READ_BUFFER_SIZE);
136 retCode = read(fd, buf->Data(), DEFAULT_READ_BUFFER_SIZE);
137 MEDIA_LOGD("recvSocket len: %{public}d.", static_cast<int32_t>(retCode));
138 if (retCode > 0) {
139 buf->UpdateSize(retCode);
140 auto callback = callback_.lock();
141 if (callback) {
142 callback->OnClientReadData(fd, std::move(buf));
143 }
144 } else if (retCode == 0) {
145 char errmsg[256] = {0};
146 strerror_r(errno, errmsg, sizeof(errmsg));
147 SHARING_LOGE("recvSocket failed, error:%{public}s!", errmsg);
148 Disconnect();
149 }
150 } while (retCode > 0);
151 }
152 } // namespace Sharing
153 } // namespace OHOS
154