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 #ifndef FOUNDATION_ACE_NAPI_TEST_NATIVE_MODULE_NET_SERVER_NETSERVER_H
17 #define FOUNDATION_ACE_NAPI_TEST_NATIVE_MODULE_NET_SERVER_NETSERVER_H
18 
19 #include <cstddef>
20 
21 #include "event_target.h"
22 #include "napi/native_api.h"
23 #include "napi/native_node_api.h"
24 #include "uv.h"
25 
26 #define EVENT_TYPE_BUFFER_SIZE 64
27 
28 struct WriteReq {
29     uv_write_t req = { 0 };
30     uv_buf_t buf = { 0 };
31 };
32 
33 struct NetClient {
34     uv_tcp_t tcp = { 0 };
35     uv_write_t req = { 0 };
36     uv_buf_t buf = { 0 };
37     NetClient* next = nullptr;
38 };
39 
40 class NetServer : public EventTarget {
41     NetServer(napi_env env, napi_value thisVar);
42     virtual ~NetServer();
43 
44 public:
45     int Start(int port);
46     void Stop();
47 
48     static napi_value Export(napi_env env, napi_value exports);
49 
50 private:
51     // Napi methods and properties
52     static napi_value JS_Constructor(napi_env env, napi_callback_info cbinfo);
53     static napi_value JS_Start(napi_env env, napi_callback_info cbinfo);
54     static napi_value JS_Stop(napi_env env, napi_callback_info cbinfo);
55     static napi_value JS_On(napi_env env, napi_callback_info cbinfo);
56     static napi_value JS_Once(napi_env env, napi_callback_info cbinfo);
57     static napi_value JS_Off(napi_env env, napi_callback_info cbinfo);
58 
59     // C function and members
60     static void EchoAlloc(uv_handle_t* handle, size_t suggestedSize, uv_buf_t* buf);
61     static void AfterShutdown(uv_shutdown_t* req, int status);
62     static void AfterWrite(uv_write_t* req, int status);
63     static void AfterRead(uv_stream_t*, ssize_t nread, const uv_buf_t* buf);
64     static void TakeDiffactionsByStatus(uv_stream_t* handle, ssize_t nread,
65                                         const uv_buf_t* buf, NetServer* that);
66     static void OnClose(uv_handle_t* peer);
67     static void OnServerClose(uv_handle_t* handle);
68     static void OnConnection(uv_stream_t*, int status);
69 
70     uv_loop_t* loop_;
71     int serverClosed_;
72     uv_tcp_t tcpServer_;
73     NetClient* clients_;
74 };
75 
76 #endif /* FOUNDATION_ACE_NAPI_TEST_NATIVE_MODULE_NET_SERVER_NETSERVER_H */
77