1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
extern "C" {
#include "utility/wl_definitions.h"
#include "utility/wl_types.h"
#include "socket.h"
#include "string.h"
#include "utility/debug.h"
}
#include "WiFi.h"
#include "WiFiClient.h"
#include "WiFiServer.h"
#include "server_drv.h"
uint16_t WiFiClient::_srcport = 1024;
WiFiClient::WiFiClient() : _sock(MAX_SOCK_NUM) {
}
WiFiClient::WiFiClient(uint8_t sock) : _sock(sock) {
}
int WiFiClient::connect(const char* host, uint16_t port) {
IPAddress remote_addr;
if (WiFi.hostByName(host, remote_addr))
{
return connect(remote_addr, port);
}
return 0;
}
int WiFiClient::connect(IPAddress ip, uint16_t port) {
_sock = getFirstSocket();
if (_sock != NO_SOCKET_AVAIL)
{
ServerDrv::startClient(uint32_t(ip), port, _sock);
WiFiClass::_state[_sock] = _sock;
unsigned long start = millis();
// wait 4 second for the connection to close
while (!connected() && millis() - start < 10000)
delay(1);
if (!connected())
{
return 0;
}
}else{
Serial.println("No Socket available");
return 0;
}
return 1;
}
size_t WiFiClient::write(uint8_t b) {
return write(&b, 1);
}
size_t WiFiClient::write(const uint8_t *buf, size_t size) {
if (_sock >= MAX_SOCK_NUM)
{
setWriteError();
return 0;
}
if (size==0)
{
setWriteError();
return 0;
}
if (!ServerDrv::sendData(_sock, buf, size))
{
setWriteError();
return 0;
}
if (!ServerDrv::checkDataSent(_sock))
{
setWriteError();
return 0;
}
return size;
}
int WiFiClient::available() {
if (_sock != 255)
{
return ServerDrv::availData(_sock);
}
return 0;
}
int WiFiClient::read() {
uint8_t b;
if (!available())
return -1;
ServerDrv::getData(_sock, &b);
return b;
}
int WiFiClient::read(uint8_t* buf, size_t size) {
if (!ServerDrv::getDataBuf(_sock, buf, &size))
return -1;
return 0;
}
int WiFiClient::peek() {
uint8_t b;
if (!available())
return -1;
ServerDrv::getData(_sock, &b, 1);
return b;
}
void WiFiClient::flush() {
while (available())
read();
}
void WiFiClient::stop() {
if (_sock == 255)
return;
ServerDrv::stopClient(_sock);
WiFiClass::_state[_sock] = NA_STATE;
int count = 0;
// wait maximum 5 secs for the connection to close
while (status() != CLOSED && ++count < 50)
delay(100);
_sock = 255;
}
uint8_t WiFiClient::connected() {
if (_sock == 255) {
return 0;
} else {
uint8_t s = status();
return !(s == LISTEN || s == CLOSED || s == FIN_WAIT_1 ||
s == FIN_WAIT_2 || s == TIME_WAIT ||
s == SYN_SENT || s== SYN_RCVD ||
(s == CLOSE_WAIT));
}
}
uint8_t WiFiClient::status() {
if (_sock == 255) {
return CLOSED;
} else {
return ServerDrv::getClientState(_sock);
}
}
WiFiClient::operator bool() {
return _sock != 255;
}
// Private Methods
uint8_t WiFiClient::getFirstSocket()
{
for (int i = 0; i < MAX_SOCK_NUM; i++) {
if (WiFiClass::_state[i] == NA_STATE)
{
return i;
}
}
return SOCK_NOT_AVAIL;
}
|
